Effect of Added Graphitized CB on Both Performance and Durability of Pt/Nb-SnO2 Cathodes for PEFCs

被引：29

作者：

Chino, Yuji ^{[1
]}

Taniguchi, Koji ^{[2
]}

Senoo, Yuichi ^{[2
]}

Kakinuma, Katsuyoshi ^{[3
]}

Hara, Masanori ^{[3
]}

Watanabe, Masahiro ^{[3
]}

Uchida, Andmakoto ^{[3
]}

机构：

[1] Univ Yamanashi, Interdisciplinazy Grad Sch Med & Engn, Kofu, Yamanashi 4008510, Japan

[2] Mitsui Min & Smelting Co Ltd, Engn Mat Sector R&D Ctr, Ageo, Saitama 3620021, Japan

[3] Univ Yamanashi, Fuel Cell Nanomat Ctr, Kofu, Yamanashi 4000021, Japan

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2015年 / 162卷 / 07期

关键词：

START/STOP OPERATING CONDITION; CARBON CORROSION; FUEL-CELLS; CATALYST; PLATINUM; MEMBRANE; BLACK; OXIDE; SNO2; ELECTROCATALYST;

D O I：

10.1149/2.0651507jes

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The single cell performances of polymer electrolyte fuel cells (PEFCs) using Pt catalyst supported on Nb-SnO2 (Pt/Nb-SnO2) with/without graphitized carbon black (GCB) were compared with that of a cell using Pt/GCB. The Pt-mass specific power of the Pt/Nb-SnO2 cathode under low humidity conditions was superior to that of the Pt/GCB cathode, because the hydrophilic SnO2 support helped to increase the proton conductivity of the iononner, which led to high Pt effectiveness. The addition of GCB to the Pt/Nb-SnO2 cathode improved the cell performance under high humidity, and the Pt-mass specific power value reached more than 10 kW g(Pt)(-1). The improvement conditions was attributed to the formation of gas diffusion paths by adding the hydrophobic GCB. The Pt/Nb-SnO2 cathodes, with/without GCB, had greater durability than that of the Pt/GCB cathode during the startup / shutdown potential sweep evaluation. The migration of Pt particles on the Nb-SnO2 support was suppressed by the high stability of Nb-SnO2 and. strong orientation between Pt and Nb-SnO2 support. The degradation of GCB in the Pt/Nb-SnO2 cathode was smaller than that in the Pt/GCB cathode because of the absence of Pt on the added GCB. Therefore, the added GCB was still able to provide gas diffusion paths even after extensive cycling. (C) 2015 The Electrochemical Society. All rights reserved.

引用

页码：F736 / F743

页数：8

共 38 条

[1] Pt nanoparticles supported on Sb-doped SnO2 porous structures: developments and issues [J].

Fabbri, E. ;

Rabis, A. ;

Kotz, R. ;

Schmidt, T. J. .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2014, 16 (27) :13672-13681

[2] SURFACE-AREA LOSS OF PLATINUM SUPPORTED ON CARBON IN PHOSPHORIC-ACID ELECTROLYTE [J].

GRUVER, GA ;

PASCOE, RF ;

KUNZ, HR .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1980, 127 (06) :1219-1224

[3] Electrochemical and Raman spectroscopic evaluation of Pt/graphitized carbon black catalyst durability for the start/stop operating condition of polymer electrolyte fuel cells [J].

Hara, Masanori ;

Lee, Myoungseok ;

Liu, Cheng-Hong ;

Chen, Bing-Hung ;

Yamashita, Yuya ;

Uchida, Makoto ;

Uchida, Hiroyuki ;

Watanabe, Masahiro .

ELECTROCHIMICA ACTA, 2012, 70 :171-181

[4] Simulated start-stop as a rapid aging tool for polymer electrolyte fuel cell electrodes [J].

Hartnig, Christoph ;

Schmidt, Thomas J. .

JOURNAL OF POWER SOURCES, 2011, 196 (13) :5564-5572

[5] Study of fuel cell structure and heating method development of JARI's standard single cell [J].

Hashimasa, Y ;

Numata, T ;

Moriya, K ;

Watanabe, S .

JOURNAL OF POWER SOURCES, 2006, 155 (02) :182-189

[6] Electrocatalytic activity and stability of niobium-doped titanium oxide supported platinum catalyst for polymer electrolyte membrane fuel cells [J].

Huang, Sheng-Yang ;

Ganesan, Prabhu ;

Popov, Branko N. .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2010, 96 (1-2) :224-231

[7]

Iiyama A., 2009, HDB FUEL CELLS, P905

[8] Sub-stoichiometric titanium oxide-supported platinum electrocatalyst for polymer electrolyte fuel cells [J].

Ioroi, T ;

Siroma, Z ;

Fujiwara, N ;

Yamazaki, S ;

Yasuda, K .

ELECTROCHEMISTRY COMMUNICATIONS, 2005, 7 (02) :183-188

[9] Stability of corrosion-resistant magneli-phase Ti4O7-supported PEMFC catalysts at high potentials [J].

Ioroi, Tsutomu ;

Senoh, Hiroshi ;

Yamazaki, Shin-Ichi ;

Siroma, Zyun ;

Fujiwara, Naoko ;

Yasuda, Kazuaki .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2008, 155 (04) :B321-B326

[10] A RING-DISK ELECTRODE STUDY OF CURRENT/POTENTIAL BEHAVIOUR OF PLATINUM IN 1.0 M SULPHURIC AND 0.1 M PERCHLORIC ACIDS [J].

JOHNSON, DC ;

NAPP, DT ;

BUCKENST.S .

ELECTROCHIMICA ACTA, 1970, 15 (09) :1493-&

← 1 2 3 4 →