催化作用
过渡金属
配体(生物化学)
材料科学
组合化学
Atom(片上系统)
比例(比率)
化学
纳米技术
物理
有机化学
生物化学
受体
并行计算
量子力学
计算机科学
作者
Hongzhou Yang,Lu Shang,Qinghua Zhang,Run Shi,Geoffrey I. N. Waterhouse,Lin Gu,Tierui Zhang
标识
DOI:10.1038/s41467-019-12510-0
摘要
There is interest in metal single atom catalysts due to their remarkable activity and stability. However, the synthesis of metal single atom catalysts remains somewhat ad hoc, with no universal strategy yet reported that allows their generic synthesis. Herein, we report a universal synthetic strategy that allows the synthesis of transition metal single atom catalysts containing Cr, Mn, Fe, Co, Ni, Cu, Zn, Ru, Pt or combinations thereof. Aberration-corrected high-angle annular dark-field scanning transmission electron microscopy and extended X-ray absorption fine structure spectroscopy confirm that the transition metal atoms are uniformly dispersed over a carbon black support. The introduced synthetic method allows the production of carbon-supported metal single atom catalysts in large quantities (>1 kg scale) with high metal loadings. A Ni single atom catalyst exhibits outstanding activity for electrochemical reduction of carbon dioxide to carbon monoxide, achieving a 98.9% Faradaic efficiency at -1.2 V.
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