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- Title
Ruthenium‐Based Single‐Atom Alloy with High Electrocatalytic Activity for Hydrogen Evolution.
- Authors
Chen, Cui‐Hong; Wu, Deyao; Li, Zhe; Zhang, Rui; Kuai, Chun‐Guang; Zhao, Xue‐Ru; Dong, Cun‐Ku; Qiao, Shi‐Zhang; Liu, Hui; Du, Xi‐Wen
- Abstract
Highly efficient and stable catalysts for the hydrogen evolution reaction, especially in alkaline conditions are crucial for the practical demands of electrochemical water splitting. Here, the synthesis of a novel RuAu single‐atom alloy (SAA) by laser ablation in liquid is reported. The SAA exhibits a high stability and a low overpotential, 24 mV@10 mA cm−2, which is much lower than that of a Pt/C catalyst (46 mV) in alkaline media. Moreover, the turnover frequency of RuAu SAA is three times that of Pt/C catalyst. Density functional theory computation indicates the excellent catalytic activity of RuAu SAAs originates from the relay catalysis of Ru and Au active sites. This work opens a new avenue toward high‐performance SAAs via fast quenching of immiscible metals.
- Subjects
HYDROGEN evolution reactions; METAL quenching; LASER ablation; ALLOYS; DENSITY functional theory; CATALYTIC activity
- Publication
Advanced Energy Materials, 2019, Vol 9, Issue 20, pN.PAG
- ISSN
1614-6832
- Publication type
Article
- DOI
10.1002/aenm.201803913