Ru-core@Pt-shell nanosheet for fuel cell electrocatalysts with high activity and durability

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• 作者：Daisuke Takimoto^a ; Tomohiro Ohnishi^b ; Jeerapat Nutariya^b ; ^c ; Zhongrong Shen^b ; Yusuke Ayato^b ; ^d ; Dai Mochizuki^a ; ^b ; ^d ; Arnaud Demortiè ; re^e ; ^f ; Adrien Boulineau^g ; ^h ; Wataru Sugimoto^a ; ^b ; ^d ; ^{wsugi@shinshu-u.ac.jp}
• 关键词：Core-shell ; Nanosheet ; Oxygen reduction reaction ; Hydrogen oxidation reaction ; CO tolerance ; Durability
• 刊名：Journal of Catalysis
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：345
• 期：Complete
• 页码：207-215
• 全文大小：1546 K
• 卷排序：345

文摘

A series of novel nanosheet catalysts with Ru-core@Pt-shell were synthesized. An average 1.5–4.5ML Pt shell was deposited on 1ML Ru nanosheet. The average thickness of Ru@Pt nanosheet is between 0.3 and 2.7 nm. Nanosheet electrocatalyst shows 4.5 times higher O2 reduction reaction activity. H2 oxidation activity and durability of nanosheet catalyst were higher than PtRu/C.