Physicochemical Properties of Nitrogen Doped Carbon Nano-onions Grown by Flame Pyrolysis from Grapeseed Oil for use in Supercapacitors

Shaku Bokome; Mofokeng Thapelo P.; Mongwe Thomas H.Coville Neil J.Ozoemena Kenneth IMaubane-Nkadimeng Manoko S.

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Physicochemical Properties of Nitrogen Doped Carbon Nano-onions Grown by Flame Pyrolysis from Grapeseed Oil for use in Supercapacitors

机译：Physicochemical Properties of Nitrogen Doped Carbon Nano-onions Grown by Flame Pyrolysis from Grapeseed Oil for use in Supercapacitors

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A low cost synthesis of catalyst free carbon nano-onions (CNOs) and nitrogen post doped CNOs (N-CNOs) using grapeseed oil is reported. Successful incorporation of nitrogen atoms into the lattice of CNOs was confirmed by XPS, resulting in 1.7 % nitrogen content. BET and Raman analysis showed an increase in the specific surface area and the I-D/I(G)ratio of carbon, respectively after N incorporation. The specific capacitance of the CNOs increased upon nitrogen doping and as a result, N-CNOs exhibited superior electrochemical performance compared to pristine CNOs. Our results demonstrate that N-CNOs are a promising electrode material for energy storage in supercapacitors.

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来源
《Electroanalysis》 |2020年第12期|2946-2957|共12页
作者
Shaku Bokome; Mofokeng Thapelo P.; Mongwe Thomas H.Coville Neil J.Ozoemena Kenneth IMaubane-Nkadimeng Manoko S.;
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作者单位

Univ Witwatersrand, DSI NRF Ctr Excellence Strong Mat, Sch Chem, Private Bag 3, ZA-2050 Johannesburg, South Africa;

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正文语种英语
中图分类电化学、电解、磁化学;
关键词
Carbon nano-onions; Flame pyrolysis; Nitrogen doping; Supercapacitors;

Physicochemical Properties of Nitrogen Doped Carbon Nano-onions Grown by Flame Pyrolysis from Grapeseed Oil for use in Supercapacitors

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