Forest of Pt-Au-Ag tri-metallic nanodendrites as an efficient electrocatalyst for methanol oxidation reaction

被引：13

作者：

Tran Ngoc Huan ^{[1
]}

Shinde, Dipak V. ^{[1
]}

Kim, Saetbyeol ^{[1
]}

Han, Sung-Hwan ^{[1
]}

Artero, Vincent ^{[2
]}

Chung, Hoeil ^{[1
]}

机构：

[1] Hanyang Univ, Coll Nat Sci, Dept Chem, Seoul 133791, South Korea

[2] Univ Grenoble Alpes, CNRS, CEA, Lab Chem & Biol Met, F-38054 Grenoble 9, France

来源：

RSC ADVANCES | 2015年 / 5卷 / 09期

基金：

新加坡国家研究基金会;

关键词：

RU ALLOY; SURFACE-STRUCTURE; FORMIC-ACID; ELECTROOXIDATION; NANOPARTICLES; RUTHENIUM; ENHANCEMENT; DURABILITY; ACTIVATION; ELECTRODES;

D O I：

10.1039/c4ra10205c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Forests of trimetallic nanodendrites composed of Pt, Au, and Ag have been synthesized and their catalytic performances with regard to the methanol oxidation reaction (MOR) were evaluated. Analysis based on elemental mapping revealed homogeneous incorporation of Pt, Au, and Ag throughout the nanodendrite and single crystalline structure. These materials proved active for MOR, with improved electrocatalytic performances with regards to Pt in terms of both overpotential and stability.

引用

页码：6940 / 6944

页数：5

共 36 条

[1] Solvothermal Synthesis of Platinum Alloy Nanoparticles for Oxygen Reduction Electrocatalysis [J].

Carpenter, Michael K. ;

Moylan, Thomas E. ;

Kukreja, Ratandeep Singh ;

Atwan, Mohammed H. ;

Tessema, Misle M. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134 (20) :8535-8542

[2]

Chen D. H., 2012, J MATER CHEM, V12, P1557

[3] Formate, an active intermediate for direct oxidation of methanol on Pt electrode [J].

Chen, YX ;

Miki, A ;

Ye, S ;

Sakai, H ;

Osawa, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (13) :3680-3681

[4] Surface structure effects in platinum/ruthenium methanol oxidation electrocatalysis [J].

Chrzanowski, W ;

Wieckowski, A .

LANGMUIR, 1998, 14 (08) :1967-1970

[5] Enhancement in methanol oxidation by spontaneously deposited ruthenium on low-index platinum electrodes [J].

Chrzanowski, W ;

Kim, H ;

Wieckowski, A .

CATALYSIS LETTERS, 1998, 50 (1-2) :69-75

[6] Effect of mass transfer on the oxygen reduction reaction catalyzed by platinum dendrimer encapsulated nanoparticles [J].

Dumitrescu, Ioana ;

Crooks, Richard M. .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2012, 109 (29) :11493-11497

[7]

Gao M.-R., 2011, Angew. Chem., V123, P5007, DOI [10.1002/ange.201007036, DOI 10.1002/ANGE.201007036]

[8] TEMPERATURE-DEPENDENT METHANOL ELECTROOXIDATION ON WELL-CHARACTERIZED PT-RU ALLOYS [J].

GASTEIGER, HA ;

MARKOVIC, N ;

ROSS, PN ;

CAIRNS, EJ .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1994, 141 (07) :1795-1803

[9] Synthesis of Ultrathin FePtPd Nanowires and Their Use as Catalysts for Methanol Oxidation Reaction [J].

Guo, Shaojun ;

Zhang, Sen ;

Sun, Xiaolian ;

Sun, Shouheng .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (39) :15354-15357

[10] Pt-Ru model catalysts for anodic methanol oxidation:: Influence of structure and composition on the reactivity [J].

Hoster, H ;

Iwasita, T ;

Baumgärtner, H ;

Vielstich, W .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2001, 3 (03) :337-346

← 1 2 3 4 →