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:Quinary defect-rich ultrathin bimetal hydroxide nanosheets for water oxidation
學年108
學期1
出版(發表)日期2019/11/06
作品名稱Quinary defect-rich ultrathin bimetal hydroxide nanosheets for water oxidation
作品名稱(其他語言)
著者Z. Liu; Y. C. Huang; Y. Wang; J. Chen; H. Yang; X. Chen; X. Tong; D. Su; C. L. Dong; S. Wang
單位
出版者
著錄名稱、卷期、頁數ACS Applied Materials & Interfaces 11(47), p.44018-44025
摘要The electronic structure of layered double hydroxides (LDHs) can be modulated by heteroatom doping and creating vacancies. The number of exposed active sites can be enriched by exfoliating the bulk structure into fewer layers. Herein, we successfully achieved multielement doping and exfoliation for Co3Fe LDHs by one SF6-plasma etching step at room temperature (named as Co3Fe LDHs-SF6). The obtained Co3Fe LDHs-SF6 ultrathin nanosheets display outstanding oxygen evolution reaction (OER) activity, which only needs 268 mV overpotential to reach 10 mA cm–2. Tafel slope and charge transfer resistance are dramatically decreased indicating a faster reaction kinetic rate. The excellent OER activity can be attributed to an increased number of active sites and an optimized electronic structure modulated by the incorporation of electron-withdrawing F, electron-donating S, and abundant vacancies resulting in proper adsorption energy to oxygen species.
關鍵字quinary bimetal hydroxide nanosheets;exfoliation;in situ S;F co-filling;vacancies;electrochemical water oxidation
語言英文
ISSN1944-8252
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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