纳米团簇
材料科学
过电位
催化作用
钴
异质结
密度泛函理论
分解水
氢
化学工程
纳米技术
无机化学
金属
物理化学
光电子学
计算化学
冶金
光催化
有机化学
电化学
化学
电极
工程类
作者
Shuai Yuan,Zonghua Pu,Huang Zhou,Jun Yu,Ibrahim Saana Amiinu,Jiawei Zhu,Qirui Liang,Jinlong Yang,Daping He,Zhi‐Yi Hu,Gustaaf Van Tendeloo,Shichun Mu
出处
期刊:Nano Energy
[Elsevier]
日期:2019-02-25
卷期号:59: 472-480
被引量:221
标识
DOI:10.1016/j.nanoen.2019.02.062
摘要
The development of a stable, efficient and economic catalyst for hydrogen evolution reaction (HER) of water splitting is one of the most hopeful approaches to confront the environmental and energy crisis. A two-step method is employed to obtain metal clusters (Ru, Pt, Pd etc.) combining single cobalt atoms anchored on nitrogen-doped carbon (Ru/Pt/[email protected]/N-C). Based on the synergistic effect between Ru clusters and single cobalt atoms, [email protected]/N-C exhibits an outstanding HER electrocatalytic activity. Specifically, [email protected]/N-C only needs 7 mV overpotential at 10 mA cm-2 in 1 M KOH solution, which is much better than commercial 20 wt% Pt/C (40 mV) catalyst. Density functional theory (DFT) calculations further reveal the synergy effect between surface Ru nanoclusters and Co-SAs/N-C toward hydrogen adsorption for HER. Additionally, [email protected]/N-C also exhibits excellent catalytic ability and durability under acidic and neutral media. The present study opens a new avenue towards the design of metal clusters/single cobalt atoms heterostructures with outstanding performance toward HER and beyond.
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