双金属片
油胺
催化作用
纳米材料基催化剂
还原剂
化学工程
材料科学
氧化还原
化学
甘油
组合化学
无机化学
纳米技术
纳米晶
有机化学
工程类
作者
Ai-Jun Wang,Xiaofang Zhang,Liu-Ying Jiang,Lu Zhang,Jiu-Ju Feng
出处
期刊:Chemcatchem
[Wiley]
日期:2018-08-13
卷期号:10 (15): 3319-3326
被引量:23
标识
DOI:10.1002/cctc.201800188
摘要
Three-dimensional (3D) hollow nanoframes with high surface-to-volume ratio and abundant accessible active sites are a type of promising catalysts, albeit with the challenging synthesis by a one-step solvothermal method. In this research, uniform bimetallic PtCu alloyed hollow cubic nanoframes (HCNFs) were synthesized with high yield by a simple, template-free, one-step co-reduction approach, where cetyltrimethylammonium chloride (CTAC), Cl−/O2, ethanolamine, and oleylamine served as the structure director, oxidative etchant, reducing agent, and co-reductant, respectively. The architectures were characterized by a series of characterization techniques. Combined with the 3D hollow structures, PtCu HCNFs exhibited enlarged specific/mass activities, boosted catalytic activity, and improved durability for the oxygen reduction reaction (ORR) and glycerol oxidation reaction (GOR) compared with Pt nanocubes (Pt NCs), commercial Pt/C (20 wt %), and Pt black catalysts in alkaline solutions. This work provides guidelines for the rational design and synthesis of frame-like nanocatalysts with superior catalytic activity and stability.
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