催化作用
双金属片
电催化剂
材料科学
氧化还原
兴奋剂
电解
纳米技术
化学工程
无机化学
化学
物理化学
电极
电化学
电解质
冶金
光电子学
生物化学
工程类
作者
Yongxiao Tuo,Qing Lü,Wanli Liu,Lishi Wang,Yan Zhang,Xiang Feng,Mingbo Wu,De Chen,Jun Zhang
出处
期刊:Small
[Wiley]
日期:2023-10-20
标识
DOI:10.1002/smll.202306945
摘要
The Sabatier principle defines the essential criteria for an ideal catalyst in heterogeneous catalysis, while reaching the Sabatier optimum is still challenging in catalyst design. Herein, an elegant strategy is described to reach the Sabatier optimum of Ni electrocatalyst in CO2 reduction reaction (CO2 RR) by atomically Zn doping. The incorporation of 3% Zn single atom into Ni lattice leads to the moderate degrade of d-band center via Ni-Zn electronic coupling, which balances the bonding strengths of *COOH and *CO, resulting in a relative low energy barrier for CO2 activation while not being substantially poisoned by CO. Consequently, NiZn0.03 /C exhibits unique catalytic activity (jCO >100 mA cm-2 at -0.6 V), wide potential range for selective CO production (FECO >90% from -0.65 to -1.15 V), and outstanding long-term stability (FECO >90% during 85 h electrolysis at -0.85 V). The results provide valuable insights for the rational fabrication of superior non-noble bimetallic electrocatalysts in CO2 electroreduction.
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