Highly Active Platinum Nanoparticles on Graphene Nanosheets with a Significant Improvement in Stability and CO Tolerance

被引：92

作者：

He, Daping ^{[1
]}

Cheng, Kun ^{[1
]}

Li, Huaiguang ^{[1
]}

Peng, Tao ^{[1
]}

Xu, Feng ^{[1
]}

Mu, Shichun ^{[1
]}

Pan, Mu ^{[1
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China

来源：

LANGMUIR | 2012年 / 28卷 / 08期

基金：

中国国家自然科学基金;

关键词：

ENHANCED ELECTROCATALYTIC ACTIVITY; MEMBRANE FUEL-CELLS; GRAPHITE OXIDE; OXYGEN REDUCTION; CATALYSTS; SURFACE; SHEETS; ELECTROOXIDATION; POLYELECTROLYTE; TRANSPARENT;

D O I：

10.1021/la2045493

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Graphene nanosheets (GNS) supporting Pt nanoparticles (PNs) are prepared using perfluorosulfonic acid (PFSA) as a functionalization and anchoring agent. Transmission electron microscope (TEM) results indicate that the prepared Pt NPs are uniformly deposited on GNS with a narrow particle size ranging from I to 4 nm in diameter. A high catalytic activity of this novel catalyst is observed by both cyclic voltammetry and oxygen reduction reaction (ORR) measurements due to the increasing of proton (H+) transmission channels. Significantly, this novel PFSA-functionalized Pt/GNS (PFSA-Pt/GNS) catalyst reveals a better CO oxidation and lower loss rate of electrochemical active area in comparison with that of the plain Pt/GNS and conventional Pt/C catalysts, indicating our PFSA-Pt/GNS catalysts hold much higher stability and CO tolerance by virtue of introduction of PFSA.

引用

页码：3979 / 3986

页数：8

共 41 条

[1] Ionic dispersion of Pt over CeO2 by the combustion method:: Structural investigation by XRD, TEM, XPS, and EXAFS [J].

Bera, P ;

Priolkar, KR ;

Gayen, A ;

Sarode, PR ;

Hegde, MS ;

Emura, S ;

Kumashiro, R ;

Jayaram, V ;

Subbanna, GN .

CHEMISTRY OF MATERIALS, 2003, 15 (10) :2049-2060

[2] Scientific aspects of polymer electrolyte fuel cell durability and degradation [J].

Borup, Rod ;

Meyers, Jeremy ;

Pivovar, Bryan ;

Kim, Yu Seung ;

Mukundan, Rangachary ;

Garland, Nancy ;

Myers, Deborah ;

Wilson, Mahlon ;

Garzon, Fernando ;

Wood, David ;

Zelenay, Piotr ;

More, Karren ;

Stroh, Ken ;

Zawodzinski, Tom ;

Boncella, James ;

McGrath, James E. ;

Inaba, Minoru ;

Miyatake, Kenji ;

Hori, Michio ;

Ota, Kenichiro ;

Ogumi, Zempachi ;

Miyata, Seizo ;

Nishikata, Atsushi ;

Siroma, Zyun ;

Uchimoto, Yoshiharu ;

Yasuda, Kazuaki ;

Kimijima, Ken-ichi ;

Iwashita, Norio .

CHEMICAL REVIEWS, 2007, 107 (10) :3904-3951

[3] Graphite oxide:: Chemical reduction to graphite and surface modification with primary aliphatic amines and amino acids [J].

Bourlinos, AB ;

Gournis, D ;

Petridis, D ;

Szabó, T ;

Szeri, A ;

Dékány, I .

LANGMUIR, 2003, 19 (15) :6050-6055

[4] Enhanced stability of Pt electrocatalysts by nitrogen doping in CNTs for PEM fuel cells [J].

Chen, Yougui ;

Wang, Jiajun ;

Liu, Hao ;

Li, Ruyin ;

Sun, Xueliang ;

Ye, Siyu ;

Knights, Shanna .

ELECTROCHEMISTRY COMMUNICATIONS, 2009, 11 (10) :2071-2076

[5] Enhanced life of proton exchange membrane fuel cell catalysts using perfluorosulfonic acid stabilized carbon support [J].

Cheng, Niancai ;

Mu, Shichun ;

Chen, Xiaojing ;

Lv, Haifeng ;

Pan, Mu ;

Edwards, Peter P. .

ELECTROCHIMICA ACTA, 2011, 56 (05) :2154-2159

[6] Improved lifetime of PEM fuel cell catalysts through polymer stabilization [J].

Cheng, Niancai ;

Mu, Shichun ;

Pan, Mu ;

Edwards, Peter P. .

ELECTROCHEMISTRY COMMUNICATIONS, 2009, 11 (08) :1610-1614

[7] Architecture-Dependent Surface Chemistry for Pt Monolayers on Carbon-Supported Au [J].

Cheng, Shuang ;

Rettew, Robert E. ;

Sauerbrey, Marc ;

Alamgir, Faisal M. .

ACS APPLIED MATERIALS & INTERFACES, 2011, 3 (10) :3948-3956

[8] A review of PEM hydrogen fuel cell contamination: Impacts, mechanisms, and mitigation [J].

Cheng, Xuan ;

Shi, Zheng ;

Glass, Nancy ;

Zhang, Lu ;

Zhang, Jiujun ;

Song, Datong ;

Liu, Zhong-Sheng ;

Wang, Haijiang ;

Shen, Jun .

JOURNAL OF POWER SOURCES, 2007, 165 (02) :739-756

[9] Synthesis of surface-functionalized graphene nanosheets with high Pt-loadings and their applications to methanol electrooxidation [J].

Choi, Sung Mook ;

Seo, Min Ho ;

Kim, Hyung Ju ;

Kim, Won Bae .

CARBON, 2011, 49 (03) :904-909

[10] Durability study Of Pt3Ni1 catalysts as cathode in PEM fuel cells [J].

Colón-Mercado, HR ;

Kim, H ;

Popov, BN .

ELECTROCHEMISTRY COMMUNICATIONS, 2004, 6 (08) :795-799

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