Templated Photocatalytic Synthesis of Well-Defined Platinum Hollow Nanostructures with Enhanced Catalytic Performance for Methanol Oxidation

被引：114

作者：

Bai, Feng ^{[1
,2
]}

Sun, Zaicheng ^{[1
,3
]}

Wu, Huimeng ^{[4
]}

Haddad, Raid E. ^{[1
]}

Xiao, Xiaoyin ^{[4
]}

Fan, Hongyou ^{[1
,4
]}

机构：

[1] Univ New Mexico, Dept Chem & Nucl Engn, NSF Ctr Microengn Mat, Albuquerque, NM 87131 USA

[2] Henan Univ, Minist Educ, Key Lab Special Funct Mat, Kaifeng 475004, Peoples R China

[3] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Key Lab Excited State Proc, Changchun 130033, Peoples R China

[4] Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87106 USA

来源：

NANO LETTERS | 2011年 / 11卷 / 09期

基金：

中国国家自然科学基金; 美国能源部;

关键词：

Self-assembly; photocatalytic reaction; methanol oxidation; platinum hollow nanostructure; fuel cell; porphyrin;

D O I：

10.1021/nl201799x

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Hollow metallic nanostructures exhibit important applications in catalysis, sensing, and phototherapy due to their increased surface areas, reduced densities, and unique optical and electronic features. Here we report a facile photocatalytic process to synthesize and tune hollow platinum (Pt) nanostructures. Through hierarchically structured templates, well-defined hollow Pt nanostructures are. achieved. These nanostructures possess interconnected nanoporous framework as shell with high surface area for enhanced catalytic performance/mass transport for methanol oxidation.

引用

页码：3759 / 3762

页数：4

共 22 条

[1]

[Anonymous], 2002, Molecular Mechanisms of Photosynthesis

[2] Monodisperse porous nanodiscs with fluorescent and crystalline wall structure [J].

Bai, Feng ;

Wu, Huimeng ;

Haddad, Raid E. ;

Sun, Zaicheng ;

Schmitt, Samantha K. ;

Skocypec, Valerie R. ;

Fan, Hongyou .

CHEMICAL COMMUNICATIONS, 2010, 46 (27) :4941-4943

[3] ATROPISOMER-SPECIFIC FORMATION OF PREMICELLAR PORPHYRIN J-AGGREGATES IN AQUEOUS SURFACTANT SOLUTIONS [J].

BARBER, DC ;

FREITAGBEESTON, RA ;

WHITTEN, DG .

JOURNAL OF PHYSICAL CHEMISTRY, 1991, 95 (10) :4074-4086

[4] Nanostructure templating in inorganic solids with organic lyotropic liquid crystals [J].

Braun, PV ;

Osenar, P ;

Tohver, V ;

Kennedy, SB ;

Stupp, SI .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (32) :7302-7309

[5] Semiconducting superlattices templated by molecular assemblies [J].

Braun, PV ;

Osenar, P ;

Stupp, SI .

NATURE, 1996, 380 (6572) :325-328

[6] 2ND HARMONIC-GENERATION STUDIES OF POLYCRYSTALLINE PLATINUM-ELECTRODES IN SULFURIC AND PERCHLORIC-ACID SOLUTIONS [J].

CAMPBELL, DJ ;

CORN, RM .

JOURNAL OF PHYSICAL CHEMISTRY, 1988, 92 (20) :5796-5800

[7] Platinum-Based Nanostructured Materials: Synthesis, Properties, and Applications [J].

Chen, Aicheng ;

Holt-Hindle, Peter .

CHEMICAL REVIEWS, 2010, 110 (06) :3767-3804

[8] Self-assembly of ordered, robust, three-dimensional gold nanocrystal/silica arrays [J].

Fan, HY ;

Yang, K ;

Boye, DM ;

Sigmon, T ;

Malloy, KJ ;

Xu, HF ;

López, GP ;

Brinker, CJ .

SCIENCE, 2004, 304 (5670) :567-571

[9] METHANOL ELECTROOXIDATION ON WELL-CHARACTERIZED PT-RN ALLOYS [J].

GASTEIGER, HA ;

MARKOVIC, N ;

ROSS, PN ;

CAIRNS, EJ .

JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (46) :12020-12029

[10] Synthesis of Platinum Dendrites and Nanowires Via Directed Electrochemical Nanowire Assembly [J].

Kawasaki, Jason K. ;

Arnold, Craig B. .

NANO LETTERS, 2011, 11 (02) :781-785

← 1 2 3 →