Increased Mass Transport at Lithographically Defined 3-D Porous Carbon Electrodes

被引：19

作者：

Xiao, Xiaoyin ^{[1
]}

Roberts, Mark E. ^{[2
]}

Wheeler, David R. ^{[1
]}

Washburn, Cody M. ^{[1
]}

Edwards, Thayne L. ^{[1
]}

Brozik, Susan M. ^{[1
]}

Montano, Gabriel A. ^{[4
]}

Bunker, Bruce C. ^{[3
]}

Burckel, D. Bruce ^{[1
]}

Polsky, Konen ^{[1
]}

机构：

[1] Sandia Natl Labs, Dept Biosensors & Nanomat, Albuquerque, NM 87185 USA

[2] Clemson Univ, Dept Chem & Biomol Engn, Clemson, SC 29634 USA

[3] Sandia Natl Labs, Ctr Integrated Nanotechnol C1NT, Albuquerque, NM 87185 USA

[4] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA

来源：

ACS APPLIED MATERIALS & INTERFACES | 2010年 / 2卷 / 11期

关键词：

carbon; porous electrodes; interference lithography; methanol oxidation; conducting polymers; NANOELECTRODE ENSEMBLES; PLATINUM NANOPARTICLES; GOLD; FABRICATION; CATALYST; PALLADIUM; ARRAYS; FILMS; PD;

D O I：

10.1021/am1006595

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Increased mass transport due to hemispherical diffusion is observed to occur in 3D porous carbon electrodes defined by interferometric lithography. Enhanced catalytic methanol oxidation, after modifying the porous carbon with palladium nanoparticles, and uncharacteristically uniform conducting polymer deposition into the structures are demonstrated. Both examples result in two regions of the hierarchical porosity that can be created to maximize surface via nanostructuring within the extended porous network, while taking advantage of hemispherical diffusion through the open pores.

引用

页码：3179 / 3184

页数：6

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