A Two-Step Synthesis of Porous Nitrogen-Doped Graphene for Electrochemical Capacitors.

Jiahao Li, Zhenjia Wu, Rong Huang, Anbang Ge, Jie Ying

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Article in International journal of molecular sciences, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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5 authors.

Jiahao LiSchool of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China.ORCID 0000-0002-5158-6166

Zhenjia WuSchool of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China.

Rong HuangSchool of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China.

Anbang GeSchool of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China.

Jie YingSchool of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China.

Funding

Program Fund of Non-Metallic Excellence and Innovation Center for Building Materials 2023TDA1-1

6 · The paper itself

Abstract

Porous nitrogen-doped graphene (PNG) materials with high conductivity, high surface area, and chemical stability have displayed superior performance in electrochemical capacitors. However, previously reported methods for fabricating PNG render the processes expensive, hard to control, limited in production, and unsafe as well, thus largely restricting their practical applications. Herein, we present a facile two-step calcination method to prepare PNG using petroleum asphalt as the carbon source to provide the original three-dimensional porous structure directly and using environmentally friendly and high nitrogen content urea as the nitrogen source without adding any etching agent. The porous structure in PNG can largely increase its specific surface area, and the introduction of nitrogen atoms can effectively increase the degree of defects and improve the wettability of PNG. As a result, PNG displays a high specific capacitance of 157 F g

Indexed as

Electric CapacitanceElectrochemical TechniquesGraphiteNitrogenPorosityGraphiteNitrogenelectrochemical capacitorspetroleum asphaltporous nitrogen-doped graphene

Identifiers

PMID39596361

DOI10.3390/ijms252212297

PMCPMC11595055

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.