催化作用
纳米孔
电化学
材料科学
电子转移
纳米颗粒
电解质
化学工程
电催化剂
电化学能量转换
质子
水溶液
质子耦合电子转移
反应机理
纳米技术
无机化学
化学
光化学
电极
物理化学
物理
量子力学
工程类
生物化学
作者
Jonathan Rosen,Gregory S. Hutchings,Qi Lu,Sean Rivera,Yang Zhou,Dionisios G. Vlachos,Feng Jiao
标识
DOI:10.1021/acscatal.5b00840
摘要
Electroreduction of CO2 in a highly selective and efficient manner is a crucial step toward CO2 utilization. Nanostructured Ag catalysts have been found to be effective candidates for CO2 to CO conversion. In this report, we combine experimental and computational efforts to explore the electrocatalytic reaction mechanism of CO2 reduction on nanostructured Ag catalyst surfaces in an aqueous electrolyte. In contrast to bulk Ag catalysts, both nanoparticle and nanoporous Ag catalysts show enhanced ability to reduce the activation energy of the CO2 to COOHads intermediate step through the low-coordinated Ag surface atoms, resulting in a reaction mechanism involving a fast first electron and proton transfer followed by a slow second proton transfer as the rate-limiting step.
科研通智能强力驱动
Strongly Powered by AbleSci AI