<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">kaz29</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Казахстанско-Британского технического университета</journal-title><trans-title-group xml:lang="en"><trans-title>Herald of the Kazakh-British Technical University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1998-6688</issn><issn pub-type="epub">2959-8109</issn><publisher><publisher-name>Казахстанско-Британский Технический Университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.55452/1998-6688-2024-21-4-186-195</article-id><article-id custom-type="elpub" pub-id-type="custom">kaz29-1550</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ФИЗИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>ИЗГОТОВЛЕНИЕ ЭЛЕКТРОДОВ СУПЕРКОНДЕНСАТОРОВ С ВЫСОКОЙ ПРОИЗВОДИТЕЛЬНОСТЬЮ НА ОСНОВЕ ГРАФЕНОПОДОБНОГО УГЛЕРОДА, ПОЛУЧЕННОГО ИЗ ОТХОДОВ ЧАЯ</article-title><trans-title-group xml:lang="en"><trans-title>PRODUCTION OF HIGH-PERFORMANCE SUPERCAPACITOR ELECTRODES BASED ON GRAPHENE-LIKE CARBON OBTAINED FROM TEA WASTE</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-5211-6098</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дүйсенбек</surname><given-names>Ә. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Duisenbek</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>PhD докторант</p><p>г. Алматы</p></bio><bio xml:lang="en"><p>PhD student</p><p>Almaty</p></bio><email xlink:type="simple">aselka_star@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0392-6015</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бейсенова</surname><given-names>Е. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Beissenova</surname><given-names>E. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>PhD</p><p>г. Алматы</p></bio><bio xml:lang="en"><p>PhD</p><p>Almaty</p></bio><email xlink:type="simple">mamyrbayeva.e@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6880-7693</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бейсенов</surname><given-names>Р. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Beissenov</surname><given-names>R. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>PhD</p><p>г. Алматы</p></bio><bio xml:lang="en"><p>PhD</p><p>Almaty</p></bio><email xlink:type="simple">renat7787@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8998-0409</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Асқарұлы</surname><given-names>Қ.</given-names></name><name name-style="western" xml:lang="en"><surname>Askaruly</surname><given-names>K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>PhD</p><p>г. Алматы</p></bio><bio xml:lang="en"><p>PhD</p><p>Almaty</p></bio><email xlink:type="simple">k.askaruly@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7733-0903</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Приходько</surname><given-names>Н. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Prikhodko</surname><given-names>N. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>PhD, д.х.н., профессор</p><p>г. Алматы</p></bio><bio xml:lang="en"><p>PhD, Doctor of Chemical Sciences, Professor</p><p>Almaty</p></bio><email xlink:type="simple">nik99951@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Туганбаев</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Tuganbaev</surname><given-names>А. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>главный инженер</p><p>г. Талдыкорган</p></bio><bio xml:lang="en"><p>main engineer</p><p>Taldykorgan</p></bio><email xlink:type="simple">tatek.oid@mail.ru</email><xref ref-type="aff" rid="aff-5"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">КазНИТУ им. К.И. Сатпаева; Институт проблем горения<country>Казахстан</country></aff><aff xml:lang="en">Satbayev University; Institute of Combustion Problems<country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Институт проблем горения; Казахстанско-Британский технический университет<country>Казахстан</country></aff><aff xml:lang="en">Institute of Combustion Problems; Kazakh-British Technical University<country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">КазНИТУ им. К.И. Сатпаева; Казахстанско-Британский технический университет; Алматинский университет энергетики и связи им. Г. Даукеева<country>Казахстан</country></aff><aff xml:lang="en">Satbayev University; Kazakh-British Technical University;  G. Daukeev Almaty University of Energy and Communications<country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru">Институт проблем горения; Алматинский университет энергетики и связи им. Г. Даукеева<country>Казахстан</country></aff><aff xml:lang="en">Institute of Combustion Problems; G. Daukeev Almaty University of Energy and Communications<country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru">Талдыкорганская акционерная транспортно-электросетевая компания<country>Казахстан</country></aff><aff xml:lang="en">«Taldykorgan Joint-Stock Transport Electric Network Company»<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>24</day><month>12</month><year>2024</year></pub-date><volume>21</volume><issue>4</issue><fpage>186</fpage><lpage>195</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Дүйсенбек Ә.Н., Бейсенова Е.Е., Бейсенов Р.Е., Асқарұлы Қ., Приходько Н.Г., Туганбаев А.Б., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Дүйсенбек Ә.Н., Бейсенова Е.Е., Бейсенов Р.Е., Асқарұлы Қ., Приходько Н.Г., Туганбаев А.Б.</copyright-holder><copyright-holder xml:lang="en">Duisenbek A.N., Beissenova E.E., Beissenov R.E., Askaruly K., Prikhodko N.G., Tuganbaev А.B.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://vestnik.kbtu.edu.kz/jour/article/view/1550">https://vestnik.kbtu.edu.kz/jour/article/view/1550</self-uri><abstract><p>В данной статье представлены результаты исследования по изготовлению активного материала для электродов суперконденсатора из графеноподобного углерода, полученного из чайных отходов карбонизацией при температуре 550°С с последующей термохимической активацией с гидроксидом калия в соотношении 1:4 при температуре 850 °С в кварцевой трубчатой печи. Структура и морфология полученного пористого графеноподобного углерода на основе чайных отходов исследована на сканирующем электронном микроскопе (СЭМ), метода Брунауэра-Эммета-Теллера (БЭТ), рентгеновской дифракции и рамановской спектроскопии. Площадь поверхности активированного пористого графеноподобного углерода из чайных отходов составила 2407 м2/г. Электрохимические и вольтамперные характеристики собранного двухслойного суперконденсатора с электродом из ГПУ-ЧО были определены с использованием потенциостат-гальваностата и исследованы на электрохимической рабочей станции Elins P-40X. Полученные результаты показали высокую удельную емкость в 182 Ф/г и кулоновскую эффективность в 96% при плотности тока 2А/г, также материал продемонстрировал низкое сопротивление переноса заряда, составляющее около 1,5 Ом, что подчеркивает эффективность использования графеноподобного углерода, полученного из отходов чая, демонстрируя его потенциал в качестве многообещающего материала для суперконденсаторов.</p></abstract><trans-abstract xml:lang="en"><p>This article presents the results of a study on the production of active material for supercapacitor electrodes from graphene-like carbon obtained from tea waste, carbonization at a temperature of 550°C, followed by thermochemical activation using potassium hydroxide in a ratio of 1:4 at a temperature of 850°C in a quartz tube furnace. The structure and morphology of the resulting porous graphene-like carbon based on tea waste were investigated using scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET), X-ray diffraction, and Raman spectroscopy. The surface area of activated porous graphene-like carbon from tea waste was 2407 m2/g. Electrochemical characterization of the assembled supercapacitor using GLC-TW was performed on an Elins P-40X electrochemical workstation and showed high specific capacitance values of 182 F/g, as well as a Coulombic efficiency of 96% at a current density of 1 A/g and the material also demonstrated a low charge transfer resistance of about 1.5 Ohms. These results highlight the effectiveness of using graphene-like carbon derived from tea waste, demonstrating its potential as a promising material for supercapacitors.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>суперконденсатор</kwd><kwd>электрод</kwd><kwd>графеноподобный углерод</kwd><kwd>активированный уголь</kwd><kwd>карбонизация</kwd><kwd>термохимическая активация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>supercapacitor</kwd><kwd>electrode</kwd><kwd>graphene-like carbon</kwd><kwd>activated carbon</kwd><kwd>carbonization</kwd><kwd>thermochemical activation</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Работа выполнена в рамках программы «Грантовое финансирование научных исследований» АР15473245 Министерства науки и высшего образования Республики Казахстан.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Frackowiak E., Abbas Q., Béguin F. Carbon/carbon supercapacitors, Journal of Energy Chemistry, 2013, vol. 22, pp. 226–240. https://doi.org/10.1016/S2095-4956(13)60028-5.</mixed-citation><mixed-citation xml:lang="en">Frackowiak E., Abbas Q., Béguin F. Carbon/carbon supercapacitors, Journal of Energy Chemistry, 2013, vol. 22, pp. 226–240. https://doi.org/10.1016/S2095-4956(13)60028-5.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Gao Y., Zhou Y.S., Qian M., He X.N., Redepenning J., Goodman P., Li H.M., Jiang L., Lu Y.F. Chemical activation of carbon nano-onions for high-rate supercapacitor electrodes, Carbon, 2013, vol. 51, pp. 52–58. https://doi.org/10.1016/j.carbon.2012.08.009.</mixed-citation><mixed-citation xml:lang="en">Gao Y., Zhou Y.S., Qian M., He X.N., Redepenning J., Goodman P., Li H.M., Jiang L., Lu Y.F. Chemical activation of carbon nano-onions for high-rate supercapacitor electrodes, Carbon, 2013, vol. 51, pp. 52–58. https://doi.org/10.1016/j.carbon.2012.08.009.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Fu M., Huang J., Feng S., Zhang T., Qian P.-C., Wong W.-Y. One-step solid-state pyrolysis of bio-wastes to synthesize multi-hierarchical porous carbon for ultra-long life supercapacitors, Mater. Chem. Front., 2021, vol. 5, pp. 2320–2327. https://doi.org/10.1039/D0QM00960A.</mixed-citation><mixed-citation xml:lang="en">Fu M., Huang J., Feng S., Zhang T., Qian P.-C., Wong W.-Y. One-step solid-state pyrolysis of bio-wastes to synthesize multi-hierarchical porous carbon for ultra-long life supercapacitors, Mater. Chem. Front., 2021, vol. 5, pp. 2320–2327. https://doi.org/10.1039/D0QM00960A.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Tian Q., Wang X., Xu X., Zhang M., Wang L., Zhao X., An Z., Yao H., Gao J. A novel porous carbon material made from wild rice stem and its application in supercapacitors, Materials Chemistry and Physics, 2018, vol. 213, pp. 267–276. https://doi.org/10.1016/j.matchemphys.2018.04.026.</mixed-citation><mixed-citation xml:lang="en">Tian Q., Wang X., Xu X., Zhang M., Wang L., Zhao X., An Z., Yao H., Gao J. A novel porous carbon material made from wild rice stem and its application in supercapacitors, Materials Chemistry and Physics, 2018, vol. 213, pp. 267–276. https://doi.org/10.1016/j.matchemphys.2018.04.026.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Laheäär A., Przygocki P., Abbas Q., Béguin F. Appropriate methods for evaluating the efficiency and capacitive behavior of different types of supercapacitors, Electrochemistry Communications, 2015, vol. 60, pp. 21–25. https://doi.org/10.1016/j.elecom.2015.07.022.</mixed-citation><mixed-citation xml:lang="en">Laheäär A., Przygocki P., Abbas Q., Béguin F. Appropriate methods for evaluating the efficiency and capacitive behavior of different types of supercapacitors, Electrochemistry Communications, 2015, vol. 60, pp. 21–25. https://doi.org/10.1016/j.elecom.2015.07.022.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Abbas A., Tabish T.A., Bull S.J., Lim T.M., Phan A.N. High yield synthesis of graphene quantum dots from biomass waste as a highly selective probe for Fe3+ sensing, Sci Rep., 2020, vol. 10, 21262. https://doi.org/10.1038/s41598-020-78070-2.</mixed-citation><mixed-citation xml:lang="en">Abbas A., Tabish T.A., Bull S.J., Lim T.M., Phan A.N. High yield synthesis of graphene quantum dots from biomass waste as a highly selective probe for Fe3+ sensing, Sci Rep., 2020, vol. 10, 21262. https://doi.org/10.1038/s41598-020-78070-2.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Wang Y., Shi Z., Huang Y., Ma Y., Wang C., Chen M., Chen Y. Supercapacitor Devices Based on Graphene Materials, J. Phys. Chem., 2009, vol. 113, pp. 13103–13107. https://doi.org/10.1021/jp902214f.</mixed-citation><mixed-citation xml:lang="en">Wang Y., Shi Z., Huang Y., Ma Y., Wang C., Chen M., Chen Y. Supercapacitor Devices Based on Graphene Materials, J. Phys. Chem., 2009, vol. 113, pp. 13103–13107. https://doi.org/10.1021/jp902214f.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Yeleuov M., Daulbayev C., Taurbekov A., Abdisattar A., Ebrahim R., Kumekov S., Prikhodko N., Lesbayev B., Batyrzhan K. Synthesis of graphene-like porous carbon from biomass for electrochemical energy storage applications, Diamond and Related Materials, 2021, vol. 119, 108560. https://doi.org/10.1016/j.diamond.2021.108560.</mixed-citation><mixed-citation xml:lang="en">Yeleuov M., Daulbayev C., Taurbekov A., Abdisattar A., Ebrahim R., Kumekov S., Prikhodko N., Lesbayev B., Batyrzhan K. Synthesis of graphene-like porous carbon from biomass for electrochemical energy storage applications, Diamond and Related Materials, 2021, vol. 119, 108560. https://doi.org/10.1016/j.diamond.2021.108560.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Roy A., Kar S., Ghosal R., Naskar K., Bhowmick A.K. Facile Synthesis and Characterization of Few-Layer Multifunctional Graphene from Sustainable Precursors by Controlled Pyrolysis, Understanding of the Graphitization Pathway, and Its Potential Application in Polymer Nanocomposites, ACS Omega, 2021, vol. 6, pp. 1809–1822. https://doi.org/10.1021/acsomega.0c03550.</mixed-citation><mixed-citation xml:lang="en">Roy A., Kar S., Ghosal R., Naskar K., Bhowmick A.K. Facile Synthesis and Characterization of Few-Layer Multifunctional Graphene from Sustainable Precursors by Controlled Pyrolysis, Understanding of the Graphitization Pathway, and Its Potential Application in Polymer Nanocomposites, ACS Omega, 2021, vol. 6, pp. 1809–1822. https://doi.org/10.1021/acsomega.0c03550.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Prikhod’ko N.G., Mansurov Z.A., Auelkhankyzy M., Lesbaev B.T., Nazhipkyzy M., Smagulova G.T. Flame synthesis of graphene layers at low pressure, Russ. J. Phys. Chem., 2015, vol. 9, pp. 743–747. https://doi.org/10.1134/S1990793115050115.</mixed-citation><mixed-citation xml:lang="en">Prikhod’ko N.G., Mansurov Z.A., Auelkhankyzy M., Lesbaev B.T., Nazhipkyzy M., Smagulova G.T. Flame synthesis of graphene layers at low pressure, Russ. J. Phys. Chem., 2015, vol. 9, pp. 743–747. https://doi.org/10.1134/S1990793115050115.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Song X., Ma X., Li Y., Ding L., Jiang R. Tea waste derived microporous active carbon with enhanced double-layer supercapacitor behaviors, Applied Surface Science, 2019, vol. 487, pp. 189–197. https://doi.org/10.1016/j.apsusc.2019.04.277.</mixed-citation><mixed-citation xml:lang="en">Song X., Ma X., Li Y., Ding L., Jiang R. Tea waste derived microporous active carbon with enhanced double-layer supercapacitor behaviors, Applied Surface Science, 2019, vol. 487, pp. 189–197. https://doi.org/10.1016/j.apsusc.2019.04.277.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Bhoyate S., Ranaweera C.K., Zhang C., Morey T., Hyatt M., Kahol P.K., Ghimire M., Mishra S.R., Gupta R.K. Eco-Friendly and High Performance Supercapacitors for Elevated Temperature Applications Using Recycled Tea Leaves, Global Challenges, 2017, vol. 1, 1700063. https://doi.org/10.1002/gch2.201700063.</mixed-citation><mixed-citation xml:lang="en">Bhoyate S., Ranaweera C.K., Zhang C., Morey T., Hyatt M., Kahol P.K., Ghimire M., Mishra S.R., Gupta R.K. Eco-Friendly and High Performance Supercapacitors for Elevated Temperature Applications Using Recycled Tea Leaves, Global Challenges, 2017, vol. 1, 1700063. https://doi.org/10.1002/gch2.201700063.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Adan-Mas A., Alcaraz L., Arévalo-Cid P., López-Gómez Félix. A., Montemor F. Coffee-derived activated carbon from second biowaste for supercapacitor applications, Waste Management, 2021, vol. 120, pp. 280–289. https://doi.org/10.1016/j.wasman.2020.11.043.</mixed-citation><mixed-citation xml:lang="en">Adan-Mas A., Alcaraz L., Arévalo-Cid P., López-Gómez Félix. A., Montemor F. Coffee-derived activated carbon from second biowaste for supercapacitor applications, Waste Management, 2021, vol. 120, pp. 280–289. https://doi.org/10.1016/j.wasman.2020.11.043.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Li Y., Li Z., Xing B., Li H., Ma Z., Zhang W., Reubroycharoen P., Wang S. Green conversion of bamboo chips into high-performance phenol adsorbent and supercapacitor electrodes by simultaneous activation and nitrogen doping, Journal of Analytical and Applied Pyrolysis, 2021, vol. 155, 105072. https://doi.org/10.1016/j.jaap.2021.105072.</mixed-citation><mixed-citation xml:lang="en">Li Y., Li Z., Xing B., Li H., Ma Z., Zhang W., Reubroycharoen P., Wang S. Green conversion of bamboo chips into high-performance phenol adsorbent and supercapacitor electrodes by simultaneous activation and nitrogen doping, Journal of Analytical and Applied Pyrolysis, 2021, vol. 155, 105072. https://doi.org/10.1016/j.jaap.2021.105072.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Ferrari A.C. Raman spectroscopy of graphene and graphite: Disorder, electron–phonon coupling, doping and nonadiabatic effects, Solid State Communications, 2007, vol. 143, pp. 47–57. https://doi.org/10.1016/j.ssc.2007.03.052.</mixed-citation><mixed-citation xml:lang="en">Ferrari A.C. Raman spectroscopy of graphene and graphite: Disorder, electron–phonon coupling, doping and nonadiabatic effects, Solid State Communications, 2007, vol. 143, pp. 47–57. https://doi.org/10.1016/j.ssc.2007.03.052.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Bleu Y., Bourquard F., Loir A., Barnier V., Garrelie F., Donnet C. Raman study of the substrate influence on graphene synthesis using a solid carbon source via rapid thermal annealing, J Raman Spectrosc, 2019, vol. 50, pp. 1630–1641. https://doi.org/10.1002/jrs.5683.</mixed-citation><mixed-citation xml:lang="en">Bleu Y., Bourquard F., Loir A., Barnier V., Garrelie F., Donnet C. Raman study of the substrate influence on graphene synthesis using a solid carbon source via rapid thermal annealing, J Raman Spectrosc, 2019, vol. 50, pp. 1630–1641. https://doi.org/10.1002/jrs.5683.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">He X., Ling P., Yu M., Wang X., Zhang X., Zheng M. Rice husk-derived porous carbons with high capacitance by ZnCl2 activation for supercapacitors, Electrochimica Acta, 2013, vol. 105, pp. 635–641. https://doi.org/10.1016/j.electacta.2013.05.050.</mixed-citation><mixed-citation xml:lang="en">He X., Ling P., Yu M., Wang X., Zhang X., Zheng M. Rice husk-derived porous carbons with high capacitance by ZnCl2 activation for supercapacitors, Electrochimica Acta, 2013, vol. 105, pp. 635–641. https://doi.org/10.1016/j.electacta.2013.05.050.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Han J., Xu G., Ding B., Pan J., Dou H., MacFarlane D.R. Porous nitrogen-doped hollow carbon spheres derived from polyaniline for high performance supercapacitors, J. Mater. Chem. A, 2014, vol. 2, pp. 5352–5357. https://doi.org/10.1039/C3TA15271E.</mixed-citation><mixed-citation xml:lang="en">Han J., Xu G., Ding B., Pan J., Dou H., MacFarlane D.R. Porous nitrogen-doped hollow carbon spheres derived from polyaniline for high performance supercapacitors, J. Mater. Chem. A, 2014, vol. 2, pp. 5352–5357. https://doi.org/10.1039/C3TA15271E.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Kang W., Lin B., Huang G., Zhang C., Yao Y., Hou W., Xu B., Xing B. Peanut bran derived hierarchical porous carbon for supercapacitor, J Mater Sci: Mater Electron, 2018, vol. 29, pp. 6361–6368. https://doi.org/10.1007/s10854-018-8615-1.</mixed-citation><mixed-citation xml:lang="en">Kang W., Lin B., Huang G., Zhang C., Yao Y., Hou W., Xu B., Xing B. Peanut bran derived hierarchical porous carbon for supercapacitor, J Mater Sci: Mater Electron, 2018, vol. 29, pp. 6361–6368. https://doi.org/10.1007/s10854-018-8615-1.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Hao X., Wang J., Ding B., Wang Y., Chang Z., Dou H., Zhang X. Bacterial-cellulose-derived interconnected meso-microporous carbon nanofiber networks as binder-free electrodes for high-performance supercapacitors, Journal of Power Sources, 2017, vol. 352, pp. 34–41. https://doi.org/10.1016/j.jpowsour.2017.03.088.</mixed-citation><mixed-citation xml:lang="en">Hao X., Wang J., Ding B., Wang Y., Chang Z., Dou H., Zhang X. Bacterial-cellulose-derived interconnected meso-microporous carbon nanofiber networks as binder-free electrodes for high-performance supercapacitors, Journal of Power Sources, 2017, vol. 352, pp. 34–41. https://doi.org/10.1016/j.jpowsour.2017.03.088.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Sun J., Niu J., Liu M., Ji J., Dou M., Wang F. Biomass-derived nitrogen-doped porous carbons with tailored hierarchical porosity and high specific surface area for high energy and power density supercapacitors, Applied Surface Science, 2018, vol. 427, pp. 807–813. https://doi.org/10.1016/j.apsusc.2017.07.220.</mixed-citation><mixed-citation xml:lang="en">Sun J., Niu J., Liu M., Ji J., Dou M., Wang F. Biomass-derived nitrogen-doped porous carbons with tailored hierarchical porosity and high specific surface area for high energy and power density supercapacitors, Applied Surface Science, 2018, vol. 427, pp. 807–813. https://doi.org/10.1016/j.apsusc.2017.07.220.</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Peng C., Yan X., Wang R., Lang J., Ou Y., Xue Q. Promising activated carbons derived from waste tea-leaves and their application in high performance supercapacitors electrodes, Electrochimica Acta, 2013, vol. 87, pp. 401–408. https://doi.org/10.1016/j.electacta.2012.09.082.</mixed-citation><mixed-citation xml:lang="en">Peng C., Yan X., Wang R., Lang J., Ou Y., Xue Q. Promising activated carbons derived from waste tea-leaves and their application in high performance supercapacitors electrodes, Electrochimica Acta, 2013, vol. 87, pp. 401–408. https://doi.org/10.1016/j.electacta.2012.09.082.</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Ratnaji T., L. John Kennedy. Hierarchical porous carbon derived from tea waste for energy storage applications: Waste to worth, Diamond &amp; Related Materials, 2020. https://doi.org/10.1016/j.diamond.2020.108100.</mixed-citation><mixed-citation xml:lang="en">Ratnaji T., L. John Kennedy. Hierarchical porous carbon derived from tea waste for energy storage applications: Waste to worth, Diamond &amp; Related Materials, 2020. https://doi.org/10.1016/j.diamond.2020.108100.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
