The Mechanism of Ammonia Oxidation at Ni-Fe-SDC Anode in Ammonia-Fueled SOFCs

被引：18

作者：

Akimoto, Wataru ^{[1
]}

Saito, Morihiro ^{[1
]}

Inaba, Minoru ^{[1
]}

Yoshida, Hiroyuki ^{[2
]}

Inagaki, Toru ^{[2
]}

机构：

[1] Doshisha Univ, Dept Mol Chem & Biochem, Kyoto 6100321, Japan

[2] Kansai Elect Power Co Inc, Energy Use R&D Ctr, Amagasaki, Hyogo 6610974, Japan

来源：

SOLID OXIDE FUEL CELLS 13 (SOFC-XIII) | 2013年 / 57卷 / 01期

关键词：

OXIDE; CELL;

D O I：

10.1149/05701.1639ecst

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

070208 [无线电物理];

摘要：

The mechanism for ammonia oxidation at Ni-Fe alloy/Sm-doped ceria ( SDC) anode cermet was investigated under SOFC operating conditions in the temperature range of 973 to 1173 K. OCV and AC impedance analysis revealed that ammonia is directly oxidized at Ni-Fe/SDC anode, especially at lower temperatures. It was also found that the activity is determined by a balance between ammonia adsorption and nitrogen desorption on the catalyst, and the synergy effects of Ni and Fe improved the activity of Ni-Fe alloy catalysts for ammonia oxidation.

引用

页码：1639 / 1645

页数：7

共 9 条

[1]

Akimoto W., SOLID STATE IO UNPUB

[2]

Conceptual design of a novel ammonia-fuelled portable solid oxide fuel cell system [J].

Farhad, Siamak ;

Hamdullahpur, Feridun .

JOURNAL OF POWER SOURCES, 2010, 195 (10) :3084-3090

[3]

DOPED LAGAO3 PEROVSKITE-TYPE OXIDE AS A NEW OXIDE IONIC CONDUCTOR [J].

ISHIHARA, T ;

MATSUDA, H ;

TAKITA, Y .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1994, 116 (09) :3801-3803

[4]

A high-performance ammonia-fueled solid oxide fuel cell [J].

Ma, Qianli ;

Peng, Ranran ;

Lin, Yongjing ;

Gao, Hanfeng ;

Meng, Guangyao .

JOURNAL OF POWER SOURCES, 2006, 161 (01) :95-98

[5]

Ammonia-fed solid oxide fuel cells for power generation-A review [J].

Ni, Meng ;

Leung, Michael K. H. ;

Leung, Dennis Y. C. .

INTERNATIONAL JOURNAL OF ENERGY RESEARCH, 2009, 33 (11) :943-959

[6]

Gas diffusion impedance in characterization of solid oxide fuel cell anodes [J].

Primdahl, S ;

Mogensen, M .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1999, 146 (08) :2827-2833

[7]

Ammonia as a possible element in an energy infrastructure: catalysts for ammonia decomposition [J].

Schueth, F. ;

Palkovits, R. ;

Schloegl, R. ;

Su, D. S. .

ENERGY & ENVIRONMENTAL SCIENCE, 2012, 5 (04) :6278-6289

[8]

Sm0.5Sr0.5CoO3 cathodes for low-temperature SOFCs [J].

Xia, CR ;

Rauch, W ;

Chen, FL ;

Liu, ML .

SOLID STATE IONICS, 2002, 149 (1-2) :11-19

[9]

Using ammonia as a sustainable fuel [J].

Zamfirescu, C. ;

Dincer, I. .

JOURNAL OF POWER SOURCES, 2008, 185 (01) :459-465

← 1 →