Crystalline–amorphous Co@CoO core–shell heterostructures for efficient electro-oxidation of hydrazine. (8th November 2017)

• Record Type: Journal Article
• Authors: Yan, Xiaodong; Liu, Yuan; Lan, Jinle; Yu, Yunhua; Murowchick, James; Yang, Xiaoping; Peng, Zhonghua
• Is Part Of: Materials chemistry frontiers. Volume 2:Number 1(2018)
• Page Start: 96
• Page End: 101
• Publication Date: 2017-11-08
• Subjects: Materials science -- Periodicals; Chemistry -- Periodicals; 540
• DOI: 10.1039/c7qm00401j
• Languages: English
• ISSNs: 2052-1529

Abstract

Abstract : Crystalline–amorphous Co@CoO core–shell heterostructures show high activity towards electro-oxidation of hydrazine. Abstract : Metal–metal oxide core–shell heterostructures have exhibited outstanding performances in many realms, especially in catalysis, due to enriched phase interfaces and strong metal/metal oxide interactions. Herein, Co@CoO core–shell heterostructures with a crystalline Co core and an amorphous CoO shell have been prepared using a simple solution reduction process and shown to be effective catalysts for the electro-oxidation of hydrazine in alkaline media. The synergistic effect between the crystalline metallic Co core and the amorphous CoO shell leads to a small onset potential of −1.10 V vs . Ag/AgCl. In addition, the Co@CoO electrode has been shown to exhibit good long-term catalytic stability.