Ionic liquid-assisted synthesis of composition-tunable cross-linked AgPt aerogels with enhanced electrocatalysis.
A facile one-pot coreduction strategy was developed to synthesize composition-tunable cross-linked AgPt aerogels, where ionic liquid (1-aminopropyl-3-methylimidazolium bromide, [APMIm]Br) played a significant role in controlling the morphology and structure. During the synthesis progress, Br-easily reacted with Ag+to form AgBr precipitate and consequently slowed down the reducing rate of Ag+, as well as acting as a capping agent to promote the anisotropic growth of AgPt aerogels, as mainly demonstrated by the electronic microscopy, Brunauer-Emmett-Teller, X-ray diffraction and X-ray photoelectron spectroscopy analysis. The architectures showed superior catalytic activity and enhanced durability toward ethanol oxidation reaction (EOR) and ethylene glycol oxidation reaction (EGOR) in contrast with commercial Pt black, owing to the tailored composition, morphology and electronic structure of the prepared AgPt aerogels.
College of Chemistry and Life Science, College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China.
Jiu-Ju
JJ
Feng
College of Chemistry and Life Science, College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China.
Xiao-Xiao
XX
Lin
College of Chemistry and Life Science, College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China.
Li-Xian
LX
Chen
College of Chemistry and Life Science, College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China.
Meng-Ting
MT
Liu
College of Chemistry and Life Science, College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China.
Junhua
J
Yuan
College of Chemistry and Life Science, College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China. Electronic address: ajwang@zjnu.cn.
Ai-Jun
AJ
Wang
AgPt aerogels; Ethanol oxidation; Ethylene glycol oxidation; Ionic liquid; Tunable composition