Morphology Manipulation of Copper Nanocrystals and Product Selectivity in the Electrocatalytic Reduction of Carbon Dioxide
學年 107
學期 2
出版（發表）日期 2019-05-01
作品名稱 Morphology Manipulation of Copper Nanocrystals and Product Selectivity in the Electrocatalytic Reduction of Carbon Dioxide
作品名稱（其他語言）
著者 N. T. Sueu; Z. R. Kong; C. S. Hsu; H. C. Chen; C. W. Tung; Y. R. Lu; C. L. Dong; C. C. Shen; J. C. Chung; H. M. Chen
單位
出版者
著錄名稱、卷期、頁數 ACS Catalysis 9(6), p.5217–5222
摘要 We have revealed that cubelike and hexarhombic docadehedron-like Cu single crystals showed an enhancement of C2 products (ethylene and ethanol) while octahedron-like Cu nanoscale single crystals promoted C1 products of CO2 reduction. This product selectivity was revealed to be highly associated with the atomic arrangement on the surface. The remarkable high selectivity of ethanol (faraday efficiency of 25% with 14 mA/cm2, Jethanol ≈ 3.5 mA/cm2) for H–Cu was investigated and unraveled by using in situ X-ray absorption spectroscopy and density functional theory calculation. It was shown that the binding energy of adsorbed *O atom on the surface is substantial, which causes bifurcation of the reaction pathway and leads to the formation of ethanol.
關鍵字 electrocatalysis;CO2 reduction;Cu nano single-crystals;ethanol oxametallacycle
語言 en
ISSN 2155-5435
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/118668 )

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