教師資料查詢 | 類別: 期刊論文 | 教師: 董崇禮 CHUNG-LI DONG (瀏覽個人網頁)

標題:Preferential Cation Vacancies in Perovskite Hydroxide for the Oxygen Evolution Reaction
學年106
學期2
出版(發表)日期2018/05/17
作品名稱Preferential Cation Vacancies in Perovskite Hydroxide for the Oxygen Evolution Reaction
作品名稱(其他語言)
著者Dawei Chen; Man Qiao; Ying‐Rui Lu; Li Hao; Dongdong Liu; Prof. Chung‐Li Dong; Prof. Yafei Li; Prof. Shuangyin Wang
單位
出版者
著錄名稱、卷期、頁數Angewandte Chemie 57(28), p.8691-8696
摘要The oxygen evolution reaction (OER) is an ideal model to study the relationship between the activity and the surface properties of catalysts. Defect engineering has been extensively developed to tune the electrocatalytic activity for OER. Compared to the anion vacancies in metal oxides, cation vacancies are more challenging to selectively generate, and the insight into the structure and activity of cation vacancies‐rich catalysts are lacked. Herein, using SnCoFe perovskite hydroxide as a precursor, abundant Sn vacancies on the surface were preferentially produced by Ar plasma. Sn vacancies could be preferentially produced as confirmed by the X‐ray absorption spectra, probably owing to the lower lattice energy and weaker chemical bonds of Sn(OH)4. The Sn vacancies promoted the exposure of active CoFe sites, resulting in an amorphous surface layer, modulated the conductivity, and thus enhanced the OER performance.
關鍵字defects;electrocatalysts;oxygen;evolution;reaction;perovskites;vacancies
語言英文(美國)
ISSN1433-7851
期刊性質國外
收錄於SCI;
產學合作
通訊作者
審稿制度
國別德國
公開徵稿
出版型式,電子版
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