教師資料查詢 | 類別: 期刊論文 | 教師: 莊程豪 CHENG-HAO CHUANG (瀏覽個人網頁)

標題:Revealing the Active Phase of Copper during the Electroreduction of CO2 in Aqueous Electrolyte by Correlating In Situ X-ray Spectroscopy and In Situ Electron Microscopy
學年108
學期2
出版(發表)日期2020/05/27
作品名稱Revealing the Active Phase of Copper during the Electroreduction of CO2 in Aqueous Electrolyte by Correlating In Situ X-ray Spectroscopy and In Situ Electron Microscopy
作品名稱(其他語言)
著者Juan-Jesus Velasco-Velez; Rik V. Mom; Luis Sandoval; Lorenz Falling; Cheng-Hao Chuang; Dunfeng Gao; Travis E. Jones; Qingjun Zhu; Rosa Arrigo; Beatriz Roldan Cuenya; Axel Knop-Gericke; Thomas Lunkenbein; Robert Schlögl
單位
出版者
著錄名稱、卷期、頁數ACS Energy Letters 5(6), 2106–2111
摘要The variation in the morphology and electronic structure of copper during the electroreduction of CO2 into valuable hydrocarbons and alcohols was revealed by combining in situ surface- and bulk-sensitive X-ray spectroscopies with electrochemical scanning electron microscopy. These experiments proved that the electrified interface surface and near-surface are dominated by reduced copper. The selectivity to the formation of the key C–C bond is enhanced at higher cathodic potentials as a consequence of increased copper metallicity. In addition, the reduction of the copper oxide electrode and oxygen loss in the lattice reconstructs the electrode to yield a rougher surface with more uncoordinated sites, which controls the dissociation barrier of water and CO2. Thus, according to these results, copper oxide species can only be stabilized kinetically under CO2 reduction reaction conditions.
關鍵字
語言英文
ISSN2380-8195
期刊性質國外
收錄於SCI;
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式,電子版
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