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:Single platinum atoms immobilized on an MXene as an efficient catalyst for the hydrogen evolution reaction
學年107
學期1
出版(發表)日期2018/12/12
作品名稱Single platinum atoms immobilized on an MXene as an efficient catalyst for the hydrogen evolution reaction
作品名稱(其他語言)
著者Jinqiang Zhang; Yufei Zhao; Xin Guo; Chen Chen; Chung-Li Dong; Ru-Shi Liu; Chih-Pin Han; Yadong Li; Yury Gogotsi; Guoxiu Wang
單位
出版者
著錄名稱、卷期、頁數Nature Catalysis 1 (12), p.985-992
摘要Single-atom catalysts offer a pathway to cost-efficient catalysis using the minimal amount of precious metals. However, preparing and keeping them stable during operation remains a challenge. Here we report the synthesis of double transition metal MXene nanosheets—Mo2TiC2Tx, with abundant exposed basal planes and Mo vacancies in the outer layers—by electrochemical exfoliation, enabled by the interaction between protons and the surface functional groups of Mo2TiC2Tx. The as-formed Mo vacancies are used to immobilize single Pt atoms, enhancing the MXene’s catalytic activity for the hydrogen evolution reaction. The developed catalyst exhibits a high catalytic ability with low overpotentials of 30 and 77 mV to achieve 10 and 100 mA cm−2 and a mass activity about 40 times greater than the commercial platinum-on-carbon catalyst. The strong covalent interactions between positively charged Pt single atoms and the MXene contribute to the exceptional catalytic performance and stability.
關鍵字Catalyst synthesis;Electrocatalysis;Energy;Heterogeneous catalysis
語言英文(美國)
ISSN2520-1158
期刊性質國外
收錄於SCI;
產學合作
通訊作者
審稿制度
國別英國
公開徵稿
出版型式,電子版
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