Bimetallic Ni Alloys for the Electrooxidation of Hydrazine in Alkaline Media

被引：8

作者：

Martinez, U. ^{[1
]}

Asazawa, K. ^{[2
]}

Halevi, B. ^{[1
]}

Olson, T. ^{[1
]}

Kiefer, B. ^{[3
]}

Datye, A. ^{[1
]}

Tanaka, H. ^{[2
]}

Atanassov, P. ^{[1
]}

机构：

[1] Univ New Mexico, Chem & Nucl Engn Dept, UNM Ctr Emerging Energy Technol, Albuquerque, NM 87131 USA

[2] Daihatsu Motor Co Ltd, Adv R&D Div, Shiga 5202593, Japan

[3] New Mexico State Univ, Dept Phys, Las Cruces, NM 88003 USA

来源：

POLYMER ELECTROLYTE FUEL CELLS 10, PTS 1 AND 2 | 2010年 / 33卷 / 01期

关键词：

CATALYSTS;

D O I：

10.1149/1.3484657

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Bimetallic Ni alloys and solid solutions have been synthesized using spray pyrolysis of metal nitrates. Characterization of synthesized Ni compounds was performed using XRD, SEM, TEM, and EDS, in order to confirm phase compositions. The electrochemical performance for the oxidation of hydrazine in alkaline media for four different compositions of NixZny, Ni80Zn20, Ni66Zn33, Ni50Zn50, and Ni33Zn66, and one composition of NiCo, Ni50Co50, was tested and compared to that of Ni. Highest mass activity was found in the Ni80Zn20 sample, which according to geometry matching has a Ni-Ni distance that matches the gas phase groundstate geometry of hydrazine. This finding highlights the importance of matching surface structure and molecular geometry for this and possibly other catalytic reactions.

引用

页码：1673 / +

页数：2

共 8 条

[1] A platinum-free zero-carbon-emission easy fuelling direct hydrazine fuel cell for vehicles [J].

Asazawa, Koichiro ;

Yamada, Koji ;

Tanaka, Hirohisa ;

Oka, Akinori ;

Taniguchi, Masatoshi ;

Kobayashi, Tetsuhiko .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (42) :8024-8027

[2] Study of Anode Catalysts and Fuel Concentration on Direct Hydrazine Alkaline Anion-Exchange Membrane Fuel Cells [J].

Asazawa, Koichiro ;

Sakamoto, Tomokazu ;

Yamaguchi, Susumu ;

Yamada, Koji ;

Fujikawa, Hirotoshi ;

Tanaka, Hirohisa ;

Oguro, Keisuke .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2009, 156 (04) :B509-B512

[3] HYDRAZINE-AIR FUEL CELLS - HYDRAZINE-AIR FUEL CELLS EMERGE FROM LABORATORY [J].

EVANS, GE ;

KORDESCH, KV .

SCIENCE, 1967, 158 (3805) :1148-&

[4] VOLTAMMETRIC CHARACTERISTICS AND MECHANISM OF ELECTROOXIDATION OF HYDRAZINE [J].

KARP, S ;

MEITES, L .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1962, 84 (06) :906-&

[5] MUTAGENICITY OF HYDRAZINE AND SOME OF ITS DERIVATIVES [J].

KIMBALL, RF .

MUTATION RESEARCH, 1977, 39 (02) :111-126

[6] Electrocatalysis on bimetallic and alloy surfaces [J].

Koper, MTM .

SURFACE SCIENCE, 2004, 548 (1-3) :1-3

[7]

Schwank J., 1985, AIChE Journal, V31, P1405, DOI DOI 10.1002/AIC.690310823

[8] Methanol electrooxidation on supported Pt and PtRu catalysts in acid and alkaline solutions [J].

Tripkovíc, AV ;

Popovic, KD ;

Grgur, BN ;

Blizanac, B ;

Ross, PN ;

Markovic, NM .

ELECTROCHIMICA ACTA, 2002, 47 (22-23) :3707-3714

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