NiO-ScSZ and Ni0.9Mg0.1O-ScSZ-based anodes under internal dry reforming of simulated biogas mixtures

被引：30

作者：

Shiratori, Y. ^{[1
]}

Sasaki, K. ^{[1
,2
]}

机构：

[1] Kyushu Univ, Fac Engn, Dept Mech Engn Sci, Nishi Ku, Fukuoka 8190395, Japan

[2] Kyushu Univ, Hydrogen Technol Res Ctr, Nishi Ku, Fukuoka 8190395, Japan

来源：

JOURNAL OF POWER SOURCES | 2008年 / 180卷 / 02期

关键词：

solid oxide fuel cell; biogas; anode; dry reforming; internal reforming;

D O I：

10.1016/j.jpowsour.2008.03.001

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：

Solid oxide fuel cells (SOFCs) with Nio-ScSZ and Ni0.9Mg0.1O-ScSZ-based anodes were operated by directly feeding a fuel mixture of CH4, CO2 and N-2 (CH4 to CO2 ratio of 3:2). Stable operation under constant current load (200 mA cm(-2)) was achieved with a NiO-ScSZ type anode during 200h operating hours at 900 degrees C. Less stable operation occurred with a Ni0.9Mg0.1O-ScSZ type anode. In the case of SCFC with Ni0.9Mg0.1O-SCSZ as the anode, the methane reforming activity was higher than that with NiO-ScSZ. This was explained by change in the microstructure promoting reforming reactions. However, the addition of MgO resulted in degradation of electrochemical performance due to increase in ohmic resistance of the anode material during operation. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：738 / 741

页数：4

共 11 条

[1] Catalytic and electrocatalytic behavior of Ni-based cermet anodes under internal dry reforming of CH4+CO2 mixtures in SOFCs [J].

Goula, G. ;

Kiousis, V. ;

Nalbandian, L. ;

Yentekakis, I. V. .

SOLID STATE IONICS, 2006, 177 (19-25) :2119-2123

[2] Optimisation of processing and microstructural parameters of LSM cathodes to improve the electrochemical performance of anode-supported SOFCs [J].

Haanappel, VAC ;

Mertens, J ;

Rutenbeck, D ;

Tropartz, C ;

Herzhof, W ;

Sebold, D ;

Tietz, F .

JOURNAL OF POWER SOURCES, 2005, 141 (02) :216-226

[3] Electrocatalytic reforming of carbon dioxide by methane in SOFC system [J].

Moon, DJ ;

Ryu, JW .

CATALYSIS TODAY, 2003, 87 (1-4) :255-264

[4] Equilibria in fuel cell gases - II. The C-H-O ternary diagrams [J].

Sasaki, K ;

Teraoka, Y .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2003, 150 (07) :A885-A888

[5] Microstructure and Electrochemical Properties of Ni1-xMgxO-ScSZ Cermet Anodes for Biogas Fueled SOFCs [J].

Shiratori, Y. ;

Sasaki, K. .

SOLID OXIDE FUEL CELLS 10 (SOFC-X), PTS 1 AND 2, 2007, 7 (01) :1701-1710

[6] Ni1-x-yMgxAlyO-ScSZ anodes for solid oxide fuel cells [J].

Shiratori, Y. ;

Teraoka, Y. ;

Sasaki, K. .

SOLID STATE IONICS, 2006, 177 (15-16) :1371-1380

[7]

SHIRATORI Y, 2006, P 7 EUR SOFC FOR LUZ, P94

[8] Biogas powering a small tubular solid oxide fuel cell [J].

Staniforth, J ;

Kendall, K .

JOURNAL OF POWER SOURCES, 1998, 71 (1-2) :275-277

[9] Catalytic CO2 reforming of methane over Ir/Ce0.9Gd0.1O2-x [J].

Wisniewski, M ;

Boréave, A ;

Gélin, P .

CATALYSIS COMMUNICATIONS, 2005, 6 (09) :596-600

[10]

Yentakakis I. V., 1996, P 2 EUR SOL OX FUEL, P131

← 1 2 →