Electron tomography of nafion ionomer coated on Pt/carbon black in high utilization electrode for PEFCs

被引：49

作者：

Uchida, Hiroyuki

Song, Jung Min

Suzuki, Shinsuke

Nakazawa, Eiko

Baba, Norio

Watanabe, Masahiro

机构：

[1] Yamanashi Univ, Clean Energy Res Ctr, Kofu, Yamanashi 4008510, Japan

[2] Yamanashi Univ, Interdisciplinary Grad Sch Med & Engn, Kofu, Yamanashi 4008510, Japan

[3] Hitachi High Technol Corp, Hitachi, Ibaraki 3120057, Japan

[4] Kogakuin Univ, Dept Elect Engn, Hachioji, Tokyo 1920015, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2006年 / 110卷 / 27期

关键词：

D O I：

10.1021/jp062678s

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

To confirm the superiority of newly developed electrocatalyst layer (ECL) for polymer electrolyte fuel cells, three-dimensional dispersion states of Nafion ionomer in Pt/carbon black agglomerates were analyzed by electron tomography based on multiple TEM images taken at different tilt angles. Uniform distribution of the ionomer has been first observed, proving the high catalyst utilization in the new ECL distinctive from that of the conventional one.

引用

收藏

页码：13319 / 13321

页数：3

相关论文

共 15 条

[1] Embedded nanostructures revealed in three dimensions [J].

Arslan, I ;

Yates, TJV ;

Browning, ND ;

Midgley, PA .

SCIENCE, 2005, 309 (5744) :2195-2198

[2]

BABA N, 2004, P 8 AS PAC C EL MICR, P172

[3] High-resolution electron tomography study of an industrial Ni-Mo/γ-Al2O3 hydrotreating catalyst [J].

de Jong, KP ;

van den Oetelaar, LCA ;

Vogt, ETC ;

Eijsbouts, S ;

Koster, AJ ;

Friedrich, H ;

de Jongh, PE .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (21) :10209-10212

[4]

Frank J., 1992, ELECT TOMOGRAPHY 3 D

[5] Activity benchmarks and requirements for Pt, Pt-alloy, and non-Pt oxygen reduction catalysts for PEMFCs [J].

Gasteiger, HA ;

Kocha, SS ;

Sompalli, B ;

Wagner, FT .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2005, 56 (1-2) :9-35

[6] On the shape of the mesopores in zeolite Y: A three-dimensional transmission electron microscopy study combined with texture analysis [J].

Janssen, AH ;

Koster, AJ ;

de Jong, KP .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (46) :11905-11909

[7] Three-dimensional transmission electron microscopy: A novel imaging and characterization technique with nanometer scale resolution for materials science [J].

Koster, AJ ;

Ziese, U ;

Verkleij, AJ ;

Janssen, AH ;

de Jong, KP .

JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (40) :9368-9370

[8] 3D electron microscopy in the physical sciences: the development of Z-contrast and EFTEM tomography [J].

Midgley, PA ;

Weyland, M .

ULTRAMICROSCOPY, 2003, 96 (3-4) :413-431

[9] High-resolution scanning transmission electron tomography and elemental analysis of zeptogram quantities of heterogeneous catalyst [J].

Midgley, PA ;

Thomas, JM ;

Laffont, L ;

Weyland, M ;

Raja, R ;

Johnson, BFG ;

Khimyak, T .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (15) :4590-4592

[10] From words to literature in structural proteomics [J].

Sali, A ;

Glaeser, R ;

Earnest, T ;

Baumeister, W .

NATURE, 2003, 422 (6928) :216-225