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 en_US
ISSN 2637-9368
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/120724 )

SDGS 氣候行動,可負擔的潔淨能源