教師資料查詢 | 類別: 期刊論文 | 教師: 莊程豪CHENG-HAO CHUANG (瀏覽個人網頁)

標題:Coexisting Single-Atomic Fe and Ni Sites on Hierarchically Ordered Porous Carbon as a Highly Efficient ORR Electrocatalyst
學年109
學期1
出版(發表)日期2020/10/01
作品名稱Coexisting Single-Atomic Fe and Ni Sites on Hierarchically Ordered Porous Carbon as a Highly Efficient ORR Electrocatalyst
作品名稱(其他語言)
著者Zhengju Zhu; Huajie Yin; Yun Wang; Cheng-Hao Chuang; Lei Xing; Mengyang Dong; Ying-Rui Lu; Gilberto Casillas-Garcia; Yonglong Zheng; Shan Chen; Yuhai Dou; Porun Liu; Qilin Cheng; Huijun Zhao
單位
出版者
著錄名稱、卷期、頁數Advanced Materials 32(42), 2004670
摘要The development of oxygen reduction reaction (ORR) electrocatalysts based on earth‐abundant nonprecious materials is critically important for sustainable large‐scale applications of fuel cells and metal–air batteries. Herein, a hetero‐single‐atom (h‐SA) ORR electrocatalyst is presented, which has atomically dispersed Fe and Ni coanchored to a microsized nitrogen‐doped graphitic carbon support with unique trimodal‐porous structure configured by highly ordered macropores interconnected through mesopores. Extended X‐ray absorption fine structure spectra confirm that Fe‐ and Ni‐SAs are affixed to the carbon support via FeN4 and NiN4 coordination bonds. The resultant Fe/Ni h‐SA electrocatalyst exhibits an outstanding ORR activity, outperforming SA electrocatalysts with only Fe‐ or Ni‐SAs, and the benchmark Pt/C. The obtained experimental results indicate that the achieved outstanding ORR performance results from the synergetic enhancement induced by the coexisting FeN4 and NiN4 sites, and the superior mass‐transfer capability promoted by the trimodal‐porous‐structured carbon support.
關鍵字
語言英文(美國)
ISSN09359648
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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