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<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">alternative</journal-id><journal-title-group><journal-title xml:lang="ru">Альтернативная энергетика и экология (ISJAEE)</journal-title><trans-title-group xml:lang="en"><trans-title>Alternative Energy and Ecology (ISJAEE)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1608-8298</issn><publisher><publisher-name>Международный издательский дом научной периодики "Спейс</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15518/isjaee.2016.23-24.088-097</article-id><article-id custom-type="elpub" pub-id-type="custom">alternative-917</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>НАНОСТРУКТУРЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>NANOSTRUCTURES</subject></subj-group></article-categories><title-group><article-title>СИНТЕЗ ТРЕХМЕРНЫХ УГЛЕРОД-ГРАФЕНОВЫХ КОМПОЗИТОВ</article-title><trans-title-group xml:lang="en"><trans-title>SYNTHESIS OF 3D CARBON-GRAPHENE COMPOSITES</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Арбузов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Arbuzov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. хим. наук, научный сотрудник</p></bio><bio xml:lang="en"><p>Ph.D. (chemistry), Researcher</p></bio><email xlink:type="simple">arbuzov@icp.ac.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Володин</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Volodin</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. хим. наук, старший научный сотрудник</p></bio><bio xml:lang="en"><p>Ph.D. (chemistry), Researcher</p></bio><email xlink:type="simple">arbuzov@icp.ac.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тарасов</surname><given-names>Б. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Tarasov</surname><given-names>B. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. хим. наук, зав. лаб.</p></bio><bio xml:lang="en"><p>Ph.D. (chemistry), Head of Laboratory</p></bio><email xlink:type="simple">arbuzov@icp.ac.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт проблем химической физики РАН &#13;
д. 1, пр. Акад. Семенова, Черноголовка, Московская обл., 142432, Россия</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Problems of Chemical Physics of RAS &#13;
1 Acad. Semenov av., Chernogolovka, Moscow reg., 142432, Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>23</day><month>12</month><year>2016</year></pub-date><volume>0</volume><issue>23-24</issue><fpage>88</fpage><lpage>97</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Международный издательский дом научной периодики "Спейс, 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Международный издательский дом научной периодики "Спейс</copyright-holder><copyright-holder xml:lang="en">Международный издательский дом научной периодики "Спейс</copyright-holder><license xlink:href="https://www.isjaee.com/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.isjaee.com/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.isjaee.com/jour/article/view/917">https://www.isjaee.com/jour/article/view/917</self-uri><abstract><p>В работе описано получение и исследование углерод-графеновых композитов на основе графеноподобного материала (ГПМ) и углеродных нановолокон (УНВ). Композиты были получены каталитическим пиролизом этилена на никелевом катализаторе, закрепленном на поверхности ГПМ. Катализатор получали двумя методами: 1) гидротермальная обработка водной суспензии оксида графита (ОГ) и ацетата никеля с последующим прогреванием в потоке водорода; 2) восстановление водородом предварительно приготовленного композита Ni(CH3COO)2/ОГ. Синтез углеродных нановолокон осуществляли при варьировании времени синтеза: от 1 мин до 60 мин, при этом образовывались волокна 10 нм в диаметре разной длины: от 10 нм до 300 нм. Полученный материал может быть использован в качестве носителя катализаторов для органического синтеза, обратимой сорбции водорода, а также электрохимических источников тока. </p></abstract><trans-abstract xml:lang="en"><p>The paper describes the preparation and study of carbon-graphene composites on the basis of graphene-like material (GLM) and carbon nanofibers (CNF). CNF/GLM composites were prepared through pyrolysis of ethylene on a Ni-containing catalyst, supported on the surface of the GLM. Ni-containing catalysts were prepared by two methods: (1) hydrothermal treatment of aqueous suspension of graphite oxide and nickel acetate, followed by heating in a hydrogen stream; (2) hydrogen reduction of pre-formed Ni(CH3COO)2/GO composite. CNF synthesized on the surface of GLM had a diameter of 10 nm and a length from 10 to 300 nm at the synthesis duration from 1 to 60 min. The received material can be used as a carrier of catalysts for organic synthesis, reversible sorption of hydrogen and the electrochemical sources of current.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>оксид графита</kwd><kwd>графеноподобный материал</kwd><kwd>никель</kwd><kwd>никельсодержащий композит</kwd><kwd>углеродные нановолокна</kwd><kwd>трехмерная наноструктура</kwd></kwd-group><kwd-group xml:lang="en"><kwd>graphite oxide</kwd><kwd>graphene-like material</kwd><kwd>nickel</kwd><kwd>nickel-based composite</kwd><kwd>carbon nanofibers</kwd><kwd>3D nanostructure</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Tarasov, B.P. [et al.] Hydrogen sorption properties of arc generated single-wall carbon nanotubes / B.P. Tarasov [et al.] // Journal of Alloys and Compounds. – 2003. – Vol. 356–357. – P. 510–514.</mixed-citation><mixed-citation xml:lang="en">Tarasov B.P., Maehlen J.P., Lototsky M.V., Muradyan V.E., Yartys V.A. Hydrogen sorption properties of arc generated single-wall carbon nanotubes. Journal of Alloys and Compounds. 2003;(356–357):510–514 (in Eng.).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Тарасов, Б.П. Синтез, свойства и примеры ис-пользования углеродных наноматериалов / Б.П. Та-расов, В.Е. Мурадян, А.А. Володин // Известия АН, Cерия химическая. – 2011. – № 7. – С. 1237–1249.</mixed-citation><mixed-citation xml:lang="en">Tarasov B.P., Muradyan V.E., Volodin A.A. Sintez, svojstva i primery ispol’zovaniâ uglerodnyh nanomaterialov. Izvestiâ AN, Ceriâ himičeskaâ. 2011;(7):1237–1249 (in Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Лукашев, Р.В. Получение и свойства водород-аккумулирующих композитов в системе MgH2–C / Р.В. Лукашев, С.Н. Клямкин, Б.П. Тарасов // Неорганические материалы. – 2006. – Т. 42. – № 7. – С. 803– 810.</mixed-citation><mixed-citation xml:lang="en">Lukashev R.V., Klyamkin S.N., Tarasov B.P. Polučenie i svojstva vodorod-akkumuliruûŝih kompozitov v sisteme MgH2–C. Neorganičeskie materialy. 2006;(42/7):803–810 (in Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Tarasov, B.P. Metal-hydride accumulators and generators of hydrogen for feeding fuel cells // International Journal of Hydrogen Energy. – 2011. – Vol. 36. – No. 1. – P. 1196–1199.</mixed-citation><mixed-citation xml:lang="en">Tarasov B.P. Metal-hydride accumulators and generators of hydrogen for feeding fuel cells. International Journal of Hydrogen Energy. 2011;(36/1):1196– 1199 (in Eng.).</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Ткачев, С.В. Графенновый углеродный нано-материал / С.В. Ткачев, Е.Ю. Буслаева, С.П. Губин // Неорганические материалы. – 2011. – Т. 47. – С. 5–14.</mixed-citation><mixed-citation xml:lang="en">Tkachev S.V., Buslaeva E.Yu., Gubin S.P. Grafen – novyj uglerodnyj nanomaterial. Neorganičeskie materialy. 2011;(47):5–14 (in Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Obraztsov, A.N. [et al.]. Chemical vapor deposition of thin graphite films of nanometer thickness / A.N. Obraztsov [et al.] // Carbon. – 2007. – Vol. 45. – P. 2017–2021.</mixed-citation><mixed-citation xml:lang="en">Obraztsov A.N., Obraztsova E.A., Tyurnina A.V., Zolotukhin A.A. Chemical vapor deposition of thin graphite films of nanometer thickness. Carbon. 2007;(45):2017–2021 (in Eng.).</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Agnoli, S. Second generation graphene: Opportunities and challenges for surface science / S. Agnoli, G. Granozzi // Surface Science. – 2013. – Vol. 609. – P. 1–5.</mixed-citation><mixed-citation xml:lang="en">Agnoli S., Granozzi G. Second generation graphene: Opportunities and challenges for surface science. Surface Science. 2013;(609):1–5 (in Eng.).</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Li, F. [et al.]. Graphene oxide: A promising nano-material for energy and environmental applications / F. Li [et al.] // Nano Energy. – 2015. – Vol. 16. – P. 488– 515.</mixed-citation><mixed-citation xml:lang="en">Li F., Jiang X., Zhao J., Zhang Sh. Graphene oxide: A promising nanomaterial for energy and environmental applications. Nano Energy. 2015;(16)488–515 (in Eng.).</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Tjong, S.Ch. Recent progress in the development and properties of novel metal matrix nanocomposites reinforced with carbon nanotubes and graphene nanosheets / S.Ch. Tjong // Materials Science and Engineering R. – 2013. – Vol. 74. – P. 281–350.</mixed-citation><mixed-citation xml:lang="en">Tjong S.Ch. Recent progress in the development and properties of novel metal matrix nanocomposites reinforced with carbon nanotubes and graphene nanosheets. Materials Science and Engineering R. 2013;(74):281–350 (in Eng.).</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Navalon, S. [et al.]. Metal nanoparticles supported on two-dimensional graphenes as heterogeneous catalysts / S. Navalon [et al.] // Coordination Chemistry Reviews. – 2016. – Vol. 312. – P. 99–148.</mixed-citation><mixed-citation xml:lang="en">Navalon S., Dhakshinamoorthy A., Alvaro M., Garcia H. Metal nanoparticles supported on two-dimensional graphenes as heterogeneous catalysts. Coordination Chemistry Reviews. 2016;(312):99–148 (in Eng.).</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Axet, M.R. [et al.]. Coordination chemistry on carbon surfaces / M.R. Axet // Coordination Chemistry Reviews. – 2016. – Vol. 308. – P. 236–345.</mixed-citation><mixed-citation xml:lang="en">Axet M.R., Dechy-Cabaret O., Durand J., Gouygou M., Serp P. Coordination chemistry on carbon surfaces. Coordination Chemistry Reviews. 2016;(308):236–345 (in Eng.).</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Antolini, E. Graphene as a new carbon support for low-temperature fuel cell catalysts / E. Antolini // Applied Catalysis B: Environmental. – 2012. – Vol. 123–124. – P. 52– 68.</mixed-citation><mixed-citation xml:lang="en">Antolini E. Graphene as a new carbon support for low-temperature fuel cell catalysts. Applied Catalysis B: Environmental. 2012;(123–124):52– 68 (in Eng.).</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Wang, H. [et al.]. Nanocrystal growth on graphene with various degrees of oxidation / H. Wang // J. Am. Chem. Soc. – 2010. – Vol. 132. – P. 3270–3271. 14. Кущ, С.Д. [и др.]. Получение катализаторов гидрирования совместным восстановлением оксида графита и платины (IV) / С.Д. Кущ [и др.]. // Журнал физической химии. – 2013. – Т. 87. – №. 11. – P. 1824–1830.</mixed-citation><mixed-citation xml:lang="en">Wang H., Robinson J.T., Diankov G., Dai H. Nanocrystal growth on graphene with various degrees of oxidation. J. Am. Chem. Soc. 2010;(132):3270–3271 (in Eng.).</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Патент РФ МПК. 8: B01J 23/44, B01J 21/18, B01J 37/18. Палладийсодержащий катализатор гидрирования и способ его получения / Арбузов А.А., Клюев М.В., Калмыков П.А., Тарасов Б.П., Магдалинова Н.А., Мурадян В.Е. // Бюл. № 15. 2015. 6 с.</mixed-citation><mixed-citation xml:lang="en">Kushch S.D., Kuuynko N.S., Muradyan V.E., Tarasov B.P. Polučenie katalizatorov gidrirovaniâ sovmestnym vosstanovleniem oksida grafita i platiny (IV). Žurnal fizičeskoj himii. 2013;(87/11):1824–1830 (in Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Клюев, М.В. [и др.]. Палладийсодержащий графеноподобный материал: синтез и каталитическая активность / М.В. Клюев // Журнал физической химии. – 2016. – Т. 90. – № 9. – С. 1331–1335.</mixed-citation><mixed-citation xml:lang="en">Arbuzov A.A., Klyuev M.V., Kalmykov P.A., Tarasov B.P., Magdalinova N.A., Muradyan V.E. Palladijsoderžaŝij katalizator gidrirovaniâ i sposob ego polučeniâ. Patent RF МPК. 8: B01J 23/44, B01J 21/18, B01J 37/18 // 2015, bul. no. 15, 6 p. (in Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Bai, J. [et al.]. Nitrogen-doped graphene as catalysts and catalyst supports for oxygen reduction in both acidic and alkaline solutions / J. Bai // Int. J. Hydrogen Energy. – 2013. – Vol. 38. – P. 1413–1418.</mixed-citation><mixed-citation xml:lang="en">Klyuev M.V., Arbuzov A.A., Magdalinova N.A., Kalmykov P.A., Tarasov B.P. Palladijsoderžaŝij grafenopodobnyj material: sintez i katalitičeskaâ aktivnost’. Žurnal fizičeskoj himii. 2016;(90/9):1331– 1335 (in Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Тарасов, Б.П. Синтез, свойства и примеры использования углеродных наноматериалов / Б.П. Тарасов, В.Е. Мурадян, А.А. Володин // Известия АН. Серия химическая. – 2011. – № 7. – С. 1237–1249.</mixed-citation><mixed-citation xml:lang="en">Bai J., Zhu Q., Lu Zh., Dong H., Yu J., Dong L. Nitrogen-doped graphene as catalysts and catalyst supports for oxygen reduction in both acidic and alkaline solutions. Int. J. Hydrogen Energy. 2013;(38):1413– 1418 (in Eng.).</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Tang, Q. [et al.]. Preparation and supercapacitance performance of manganese oxidenanosheets/graphene/carbon nanotubes ternary composite film / Q. Tang // Electrochimica Acta. – 2014. – Vol. 125. – P. 488–496.</mixed-citation><mixed-citation xml:lang="en">Tarasov B.P., Muradyan V.E., Volodin A.A. Sintez, svojstva i primery ispol’zovaniâ uglerodnyh nanomaterialov. Izvestiâ AN. Seriâ himičeskaâ. 2011;(7):1237–1249 (in Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Wang, Y.-Sh. [et al.]. Three-dimensionally porous graphene–carbon nanotube composite-supported Pt-Ru catalysts with an ultrahigh electrocatalytic activity for methanol oxida-tion / Y.-Sh. Wang [et al.] // Electrochimica Acta. – 2013. – Vol. 87. – P. 261–269.</mixed-citation><mixed-citation xml:lang="en">Tang Q., Sun M., Yu Sh., Wang G. Preparation and supercapaci-tance performance of manganese oxidenanosheets/graphene/carbon nanotubes ternary composite film. Electrochimica Acta. 2014;(125):488– 496 (in Eng.).</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Wang, Ch. [et al.]. Preparation of graphene– carbon nanotube–TiO2 composites withenhanced photocatalytic activity for the removal of dye and Cr (VI) / Ch. Wang [et al.] // Appl. Cat. A: General. – 2014. – Vol. 473. – P. 83–89.</mixed-citation><mixed-citation xml:lang="en">Wang Y.-Sh., Yang Sh.-Y., Li Sh.-M., Tien H.-W., Hsiao Sh.-T., Liao W.-H., Liu Ch.-H., Chang K.-H., Ma Ch.-Ch. M., Hu Ch.-Ch. Three-dimensionally porous graphene–carbon nanotube composite-supported Pt-Ru catalysts with an ultrahigh electrocatalytic activity for methanol oxidation. Electrochimica Acta. 2013;(87):261–269 (in Eng.).</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Chen, X. [et al.]. One-pot hydro-thermal synthesis of reduced graphene oxide/carbon nanotube/α-Ni(OH)2 composites for high performance electrochemical supercapacitor / X. Chen // Journal of Power Sources. – 2013. – Vol. 243. – P. 555–564.</mixed-citation><mixed-citation xml:lang="en">Wang Ch., Cao M., Wang P., Ao Y., Hou J., Qian J. Preparation of graphene–carbon nanotube–TiO2 composites withenhanced photocatalytic activity for the removal of dye and Cr (VI). Appl. Cat. A: General. 2014;(473):83–89 (in Eng.).</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Tai, Z. [et al.]. Enhancement of capacitance performance of flexible carbon nanofiber paper by adding graphene nanosheets / Z. Tai [et al.] // Journal of Power Sources. – 2012. – Vol. 199. – P. 373–378.</mixed-citation><mixed-citation xml:lang="en">Chen X., Chen X., Zhang F., Yang Z., Huang Sh. One-pot hydro-thermal synthesis of reduced graphene oxide/carbon nanotube/α-Ni(OH)2 composites for high performance electrochemical supercapacitor. Journal of Power Sources. 2013;(243):555–564 (in Eng.).</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Арбузов, А.А. [и др.] Синтез графеноподоб-ных наноструктур и формирование на их основе катализаторов и водород-аккумулирующих композитов / А.А. Арбузов // Известия АН, серия химическая. – 2016. – № 8. – С. 1893–1901.</mixed-citation><mixed-citation xml:lang="en">Tai Z., Yana X., Langa J., Xue Q. Enhancement of capacitance performance of flexible carbon nanofiber paper by adding graphene nanosheets. Journal of Power Sources. 2012;(199):373–378 (in Eng.).</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Арбузов, А.А. Композиты восстановленного оксида графита и никеля / А.А. Арбузов, С.А. Можжухин, Б.П. Тарасов // Международный научный журнал «Альтернативная энергетика и экология» (ISJAEE). – 2016. № 3–4. – С. 24–34.</mixed-citation><mixed-citation xml:lang="en">Arbuzov A.A., Mozhzhuhin S.A., Volodin A.A., Fursikov P.V., Tarasov B.P. Sintez grafenopodobnyh nanostruktur i formirovanie na ih osnove katalizatorov i vodorod-akkumuliruûŝih kompozitov. Izvestiâ AN, seriâ himičeskaâ. 2016(8):1893–1901 (in Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Arbuzov A.A., Mozhzhuhin S.A., Tarasov B.P. Kompozity vosstanovlennogo oksida grafita i nikelâ. International Scientific Journal for Alternative Energy and Ecology (ISJAEE). 2016(3–4):24–34 (in Russ.).</mixed-citation><mixed-citation xml:lang="en">Arbuzov A.A., Mozhzhuhin S.A., Tarasov B.P. Kompozity vosstanovlennogo oksida grafita i nikelâ. International Scientific Journal for Alternative Energy and Ecology (ISJAEE). 2016(3–4):24–34 (in Russ.).</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>
