A nanoporous oxide interlayer makes a better Pt catalyst on a metallic substrate: Nanoflowers on a nanotube bed - 文章详情页

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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.

关键词：

platinum nanoflower titanium dioxide nanotube cycle life catalytic activity electrocatalyst

作者机构：

[ 1 ] [Li, Hongyi]Beijing Univ Technol, Coll Mat & Engn, Key Lab Adv Mat, Beijing 100124, Peoples R China
[ 2 ] [Wang, Jinshu]Beijing Univ Technol, Coll Mat & Engn, Key Lab Adv Mat, Beijing 100124, Peoples R China
[ 3 ] [Liu, Man]Beijing Univ Technol, Coll Mat & Engn, Key Lab Adv Mat, Beijing 100124, Peoples R China
[ 4 ] [Wang, Hong]Beijing Univ Technol, Coll Mat & Engn, Key Lab Adv Mat, Beijing 100124, Peoples R China
[ 5 ] [Su, Penglei]Beijing Univ Technol, Coll Mat & Engn, Key Lab Adv Mat, Beijing 100124, Peoples R China
[ 6 ] [Wu, Junshu]Beijing Univ Technol, Coll Mat & Engn, Key Lab Adv Mat, Beijing 100124, Peoples R China
[ 7 ] [Li, Hongyi]MIT, Dept Nucl Sci & Engn, Cambridge, MA 02139 USA
[ 8 ] [Li, Ju]MIT, Dept Nucl Sci & Engn, Cambridge, MA 02139 USA
[ 9 ] [Li, Hongyi]MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA
[ 10 ] [Li, Ju]MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

通讯作者信息：

王金淑
[Wang, Jinshu]Beijing Univ Technol, Coll Mat & Engn, Key Lab Adv Mat, Beijing 100124, Peoples R China

电子邮件地址：

wangjsh@bjut.edu.cn |
liju@mit.edu

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