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:Bifunctional cobalt phosphide nanoparticle with convertible surface structure for efficient electrocatalytic water splitting in alkaline solution
學年107
學期2
出版(發表)日期2019/05/01
作品名稱Bifunctional cobalt phosphide nanoparticle with convertible surface structure for efficient electrocatalytic water splitting in alkaline solution
作品名稱(其他語言)
著者M. Wang; C. L. Dong; Y. C. Huang; S. Shen
單位
出版者
著錄名稱、卷期、頁數Journal of Catalysis 371, p.262-269
摘要Highly efficient non-noble materials for water splitting are essential for renewable energy application. Herein, cobalt phosphide nanoparticles with high P/Co ratio are synthesized and display overpotentials of 348 mV (or 343 mV) for oxygen evolution reaction (OER) with surface oxidized active species formed and 200 mV (or 184 mV) for hydrogen evolution reaction (HER) in 1 M NaOH (or 1 M KOH) at 10 mA cm−2. The improved OER could be ascribed to the smaller particle size for increased active site number and more importantly the improved intrinsic activity probably assisted by more phosphates formed during electrocatalytic reaction; while the improved HER performance is mainly attributed to the increased active sites in the form of CoP bonds. In a two-electrode configuration, the catalysts exhibit excellent overall water splitting performance, with 10 mA cm−2 at 1.58 V and a long-time reaction stability without attenuation during 10 h operation.
關鍵字Cobalt hydroxides;Cobalt phosphides;Electrocatalysis;Surface structures;Overall water splitting
語言英文
ISSN1090-2694
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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