Synergistic Catalytic Effect of MoS2 Nanoparticles Supported on Gold Nanoparticle Films for a Highly Efficient Oxygen Reduction Reaction

被引：56

作者：

Wang, Tanyuan ^{[1
]}

Zhuo, Junqiao ^{[1
]}

Chen, Ye ^{[1
]}

Du, Kuangzhou ^{[1
]}

Papakonstantinou, Pagona ^{[2
]}

Zhu, Zhiwei ^{[1
]}

Shao, Yuanhua ^{[1
]}

Li, Meixian ^{[1
]}

机构：

[1] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

[2] Univ Ulster, Engn Res Inst, Sch Engn, Newtownabbey BT37 0QB, Antrim, North Ireland

来源：

CHEMCATCHEM | 2014年 / 6卷 / 07期

基金：

中国国家自然科学基金;

关键词：

electrocatalysis; fuel cells; gold; molybdenum; nanoparticles; HYDROGEN EVOLUTION REACTION; SELF-ASSEMBLED MONOLAYERS; ELECTROCATALYTIC ACTIVITY; NANOSTRUCTURED MATERIALS; CATHODE ELECTROCATALYST; FACILE SYNTHESIS; PARTICLE-SIZE; GRAPHENE; PERFORMANCE; CHALLENGES;

D O I：

10.1002/cctc.201402038

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

MoS2 nanoparticles supported on gold nanoparticle films (AuNP/MoS2 films) were constructed by a simple two-step drop-casting modification process on a glassy carbon electrode. The films realized a direct four-electron pathway for the oxygen reduction reaction (ORR) in alkaline media with an onset potential of -0.10 V versus the saturated calomel electrode. The films exhibited superior stability and better electrocatalytic performance than commercial Pt/C. Electrochemical studies and composition characterization illustrated that the enhanced catalytic activity of the AuNP/MoS2 films could be attributed to the synergistic effect of the positive onset potential of the gold nanoparticles for the ORR and the four-electron oxygen reduction properties of the ultrasmall MoS2 nanoparticles, which is different from gold nanoparticle and MoS2 nanoparticle modified electrodes.

引用

页码：1877 / 1881

页数：5

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