3D Porous PtAg Nanotubes for Ethanol Electro-Oxidation

被引：9
作者：
Gu, Xiaohu [1 ,2 ]
Wang, Chunhui [2 ]
Yang, Lishan [2 ,3 ]
Yang, Chunming [2 ]
机构：
[1] Hunan Normal Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Chem Biol & Tradit Chinese Med Res, Changsha 410081, Hunan, Peoples R China
[2] Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Peoples R China
[3] Changsha Res Inst Min & Met Co Ltd, Changsha 410012, Hunan, Peoples R China
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2017年 / 17卷 / 04期
基金：
美国国家科学基金会;
关键词：
3D Porous Materials; PtAg Alloy; Nanotube; Ethanol Electro-Oxidation; OXYGEN REDUCTION REACTION; ENHANCED ELECTROCATALYTIC ACTIVITY; REDUCED GRAPHENE OXIDE; FACILE SYNTHESIS; METHANOL OXIDATION; MESOPOROUS SILICA; ELECTROCHEMICAL BIOSENSOR; NANOSTRUCTURES SYNTHESIS; GOLD NANOPARTICLES; OPTICAL-PROPERTIES;
D O I：
10.1166/jnn.2017.12576
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A 3-dimensional (3D) porous PtAg tubular catalyst for ethanol electro-oxidation was fabricated through a two-step alloying-dealloying approach, which was composed of the controlled alloying Pt to Ag nanowire templates and the selectively dealloying Ag from AgPt nanowires. The as-synthesized PtAg porous nanotubes (PNTs) contain similar to 85% Pt and similar to 15% Ag, with a diameter of similar to 80 nm, lengths between 5 to 10 mu m, and a continuous porous network with pore/ligament size of 2-3 nm. The interconnected porous shell structure allows free transport of electrons and medium molecules, which results in superior performance for ethanol electro-oxidation.
引用
收藏
页码：2843 / 2847
页数：5
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