Enhanced Oxygen Reduction and Methanol Oxidation Electrocatalysis over Bifunctional PtPdIr Mesoporous Hollow Nanospheres

被引：23
作者：
Deng, Kai [1 ]
Xu, You [1 ]
Dai, Zechuan [1 ]
Yu, Hongjie [1 ]
Yin, Shuli [1 ]
Wang, Ziqiang [1 ]
Li, Xiaonian [1 ]
Wang, Liang [1 ]
Wang, Hongjing [1 ]
机构：
[1] Zhejiang Univ Technol, Coll Chem Engn, State Key Lab Breeding Base Green Chem Synth Tech, Hangzhou 310014, Zhejiang, Peoples R China
来源：
CHEMISTRY-AN ASIAN JOURNAL | 2019年 / 14卷 / 21期
基金：
中国国家自然科学基金;
关键词：
electrocatalysts; hollow PtPdIr nanospheres; mesoporous structures; methanol oxidation reaction; oxygen reduction reaction; ONE-POT SYNTHESIS; NANOPARTICLES; NANOCAGES; SHELL; NANOSTRUCTURES; PERFORMANCE; DURABILITY; NANOTUBES; CATALYST; CONCAVE;
D O I：
10.1002/asia.201901098
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Designing and constructing nano-architectures with abundant reactive atoms exposed on the surface and widely open pore interiors is an effective strategy for highly efficient utilization of Pt-based catalysts. Herein, we report a facile method to synthesize tri-metallic PtPdIr mesoporous hollow nanospheres (PtPdIr MHNSs) by selective chemical removal of sacrificial metallic cores from pre-constructed Pd@PtIr mesoporous nanospheres (Pd@PtIr MNSs). The unique nano-architectures, with mesoporous shells interconnected into the interior hollow cavities and the synergistic electronic effect from tri-metallic PtPdIr composition, enable the as-synthesized PtPdIr MHNSs to be efficient bifunctional electrocatalysts for catalyzing both methanol oxidation reaction (MOR) and oxygen reduction reaction (ORR).
引用
收藏
页码：3868 / 3874
页数：7
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