Microfabricated polymer electrolyte membrane fuel cells with low catalyst loadings

被引：13

作者：

Gruber, D ^{[1
]}

Ponath, N ^{[1
]}

Müller, J ^{[1
]}

机构：

[1] Hamburg Univ Technol, Dept Micro Syst Technol, D-21071 Hamburg, Germany

来源：

ELECTROCHIMICA ACTA | 2005年 / 51卷 / 04期

关键词：

miniaturized fuel cell; catalyst thin film; microfabrication; polymer electrolyte membrane (PEM); PtRu;

D O I：

10.1016/j.electacta.2005.05.031

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Miniaturized fuel cells as compact power sources fabricated in Pyrex glass using standard polymer electrolyte membrane (PEM) and electrode materials are presented. Photolithographic patterned and wet chemically etched serpentine flow channels of I mm in width and 250 pm in depth transport the fuels to the cell of 1.44 cm(2) active electrode area. Feeding H-2/O-2 a maximum power density of 149 mW cm(-2) is attained at a very low Pt loading of 0.054 mg cm(-2), ambient pressure, and room temperature. Operated with methanol and oxygen about 9 mW cm(-2) are achieved at ambient pressure, 60 degrees C, and 1 mg cm(-2) PtRu/Pt (anode/cathode) loading. A planar two-cell stack to demonstrate and investigate the assembly of a fuel cell system on Pyrex wafers has successfully been fabricated. (C) 2005 Elsevier Ltd. All rights reserved.

引用

页码：701 / 705

页数：5

共 32 条

[1] Water-neutral micro direct-methanol fuel cell (DMFC) for portable applications [J].

Blum, A ;

Duvdevani, T ;

Philosoph, M ;

Rudoy, N ;

Peled, E .

JOURNAL OF POWER SOURCES, 2003, 117 (1-2) :22-25

[2] Fabrication of all-polymer micro-DMFCs using UV-sensitive photoresist [J].

Cha, HY ;

Choi, HG ;

Nam, JD ;

Lee, Y ;

Cho, SM ;

Lee, ES ;

Lee, JK ;

Chung, CH .

ELECTROCHIMICA ACTA, 2004, 50 (2-3) :795-799

[3] Development of a polymeric micro fuel cell containing laser-micromachined flow channels [J].

Chan, SH ;

Nguyen, NT ;

Xia, ZT ;

Wu, ZG .

JOURNAL OF MICROMECHANICS AND MICROENGINEERING, 2005, 15 (01) :231-236

[4] Novel gas diffusion layer with water management function for PEMFC [J].

Chen, J ;

Matsuura, T ;

Hori, M .

JOURNAL OF POWER SOURCES, 2004, 131 (1-2) :155-161

[5] Fabrication and preliminary testing of a planar membraneless microchannel fuel cell [J].

Cohen, JL ;

Westly, DA ;

Pechenik, A ;

Abruña, HD .

JOURNAL OF POWER SOURCES, 2005, 139 (1-2) :96-105

[6] Experimental analysis of water management in a self-humidifying polymer electrolyte fuel cell stack [J].

Eckl, R ;

Zehtner, W ;

Leu, C ;

Wagner, U .

JOURNAL OF POWER SOURCES, 2004, 138 (1-2) :137-144

[7] Sputter-deposited ultra-low catalyst loadings for PEM fuel cells [J].

Gruber, D ;

Ponath, N ;

Müller, J ;

Lindstaedt, F .

JOURNAL OF POWER SOURCES, 2005, 150 :67-72

[8] Development of a planar micro fuel cell with thin film and micro patterning technologies [J].

Hahn, R ;

Wagner, S ;

Schmitz, A ;

Reichl, H .

JOURNAL OF POWER SOURCES, 2004, 131 (1-2) :73-78

[9] Miniature 250 μm thick fuel cell with monolithically fabricated silicon electrodes [J].

Hayase, M ;

Kawase, T ;

Hatsuzawa, T .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2004, 7 (08) :A231-A234

[10] Fuel cells for low power applications [J].

Heinzel, A ;

Hebling, C ;

Müller, M ;

Zedda, M ;

Müller, C .

JOURNAL OF POWER SOURCES, 2002, 105 (02) :250-255

← 1 2 3 4 →