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:Controllable synthesis of Fe-N4 species for acidic oxygen reduction
學年108
學期2
出版(發表)日期2020/05/07
作品名稱Controllable synthesis of Fe-N4 species for acidic oxygen reduction
作品名稱(其他語言)
著者X. Yan; Y. Jia; K. Wang; Z. Jin; C. L. Dong; Y. C. Huang; J. Chen; X. Yao
單位
出版者
著錄名稱、卷期、頁數Carbon Energy 2(3), p.452-460
摘要Controllable design and synthesis of catalysts with the target active sites are extremely important for their applications such as for the oxygen reduction reaction (ORR) in fuel cells. However, the controllably synthesizing electrocatalysts with a single type of active site still remains a grand challenge. In this study, we developed a facile and scalable method for fabricating highly efficient ORR electrocatalysts with sole atomic Fe–N4 species as the active site. Herein, the use of cost‐effective highly porous carbon as the support not only could avoid the aggregation of the atomic Fe species but also a feasible approach to reduce the catalyst cost. The obtained atomic Fe–N4 in activated carbon (aFe@AC) shows excellent ORR activity. Its half‐wave potential is 59 mV more negative but 47 mV more positive than that of the commercial Pt/C in acidic and alkaline electrolytes, respectively. The full cell performance test results show that the aFe@AC sample is a promising candidate for direct methanol fuel cells. This study provides a general method to prepare catalysts with a certain type of active site and definite numbers.
關鍵字atomic Fe–N4 site;controllable synthesis;fuel cells;oxygen reduction reaction
語言英文(美國)
ISSN2637-9368
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
相關連結
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