3D N-doped carbon framework with embedded CoS nanoparticles as highly active and durable oxygen reduction and evolution electrocatalyst

Nanotechnology
Ao Sheng ZhuYu Ming Guo

Abstract

Development of bifunctional non-metal electrocatalyst for oxygen reduction reactions (ORRs) and oxygen evolution reactions (OERs) with high efficiency, durable stability and low cost is a crucial and challenging issue. However, the heteroatom-doped carbon material including a carbon-based conductive additive would be easily oxidized under the high potential needed for driving the OER. Besides, the interaction between the heteroatom-doped carbon material that possesses electrocatalyst activity and a carbon-based conductive additive is weak, affecting the performance of the electrocatalyst. In this context, we introduce CoS nanoparticles into a three-dimensional N-doped carbon framework (CoS/NCF) by a morphology-retaining pyrolysis of polyaniline/CoS framework precursor, in which the polyaniline framework provides abundant functional groups to nucleate and grow CoS nanoparticles while retaining its interconnected three-dimensional porous structure. Benefiting from (i) the lower OER potential of CoS nanoparticles than the electro-oxidation decomposition potential of a carbon material and (ii) the strong affinity of CoS nanoparticles for a N-doped carbon framework, higher stability than commercial Pt/C system and greater catalytic ...Continue Reading

References

Nov 20, 2001·Nature·B C Steele, A Heinzel
Jan 19, 2012·Chemical Society Reviews·Fangyi Cheng, Jun Chen
Jan 16, 2013·ACS Applied Materials & Interfaces·Yan GuYong Wang
Jan 24, 2013·Journal of the American Chemical Society·Yongye LiangHongjie Dai
Jun 14, 2014·Chemical Society Reviews·Yanguang Li, Hongjie Dai
Dec 24, 2014·ACS Applied Materials & Interfaces·Liang-Liang FengXiaoxin Zou
May 6, 2015·Chemical Reviews·Liming DaiJong-Beom Baek
Dec 24, 2015·Angewandte Chemie·Pu XieMing Qiu Zhang
Jan 14, 2017·Chemical Society Reviews·Nian-Tzu SuenHao Ming Chen

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