화학공학소재연구정보센터
International Journal of Hydrogen Energy, Vol.41, No.21, 8871-8880, 2016
Hydrogen bubbles template-directed synthesis of self-supported AuPt nanowire networks for improved ethanol oxidation and oxygen reduction reactions
Herein, we present an ultra-simple one-pot wet-chemistry method for large-scaled synthesis of surface-clean and self-supported bimetallic AuPt nanowire networks (AuPt NWNs) with tunable compositions by using hydrogen bubble as a dynamic template. Hydrogen bubbles are in situ generated from the hydrolysis and oxidation of sodium borohydride which are rapid pouring into the metal precursor solutions. The strategy is very convenient, mild and green, exempted from pressuring, heating, and special apparatus. The resulting AuPt NWNs have clean surfaces, because the gas bubbles do not need to use additional acid/base or organic solvent to remove. Moreover, the as-prepared AuPt NWNs display excellent electrocatalytic activity and durability toward ethanol oxidation and oxygen reduction reactions. (c) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.