A nanoporous oxide interlayer makes a better Pt catalyst on a metallic substrate: Nanoflowers on a nanotube bed

被引：25

作者：

Li, Hongyi ^{[1
,2
,3
]}

Wang, Jinshu ^{[1
]}

Liu, Man ^{[1
]}

Wang, Hong ^{[1
]}

Su, Penglei ^{[1
]}

Wu, Junshu ^{[1
]}

Li, Ju ^{[2
,3
]}

机构：

[1] Beijing Univ Technol, Coll Mat & Engn, Key Lab Adv Mat, Beijing 100124, Peoples R China

[2] MIT, Dept Nucl Sci & Engn, Cambridge, MA 02139 USA

[3] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

来源：

NANO RESEARCH | 2014年 / 7卷 / 07期

基金：

中国国家自然科学基金;

关键词：

electrocatalyst; titanium dioxide nanotube; platinum nanoflower; catalytic activity; cycle life; SENSITIZED SOLAR-CELLS; ENHANCED ELECTROCATALYTIC ACTIVITY; OXYGEN REDUCTION REACTION; TIO2; NANOTUBES; PLATINUM NANOPARTICLES; METHANOL ELECTROOXIDATION; TITANIA NANOTUBES; ELECTRODEPOSITION; ARRAYS; FABRICATION;

D O I：

10.1007/s12274-014-0464-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

To improve the contact between platinum catalyst and titanium substrate, a layer of TiO2 nanotube arrays has been synthesized before depositing Pt nanoflowers by pulse electrodeposition. Dramatic improvements in electrocatalytic activity (3x) and stability (60x) for methanol oxidation were found, suggesting promising applications in direct methanol fuel cells. The 3x and 60x improvements persist for Pt/Pd catalysts used to overcome the CO poisoning problem.

引用

页码：1007 / 1017

页数：11

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