Anode supported single chamber solid oxide fuel cells operating in exhaust gases of thermal engine

被引：3

作者：

Briault, Pauline ^{[1
]}

Rieu, Mathilde ^{[1
]}

Laucournet, Richard ^{[2
]}

Morel, Bertrand ^{[2
]}

Viricelle, Jean-Paul ^{[1
]}

机构：

[1] Ecole Natl Super Mines, CNRS UMR5307, LGF, SPIN EMSE, F-42023 St Etienne, France

[2] French Atom Energy & Alternat Energies Commiss CE, F-38054 Grenoble 9, France

来源：

JOURNAL OF POWER SOURCES | 2014年 / 268卷

关键词：

Single chamber SOFC; Energy recovery; Unburned hydrocarbons; Pollutant emissions reduction; SOFC; PERFORMANCE; METHANE;

D O I：

10.1016/j.jpowsour.2014.06.061

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：

This project deals with the development and the electrochemical characterization of anode supported single chamber SOFC in a simulated environment of thermal engine exhaust gas. In the present work, a gas mixture representative of exhaust conditions is selected. It is composed of hydrocarbons (HC: propane and propene), oxygen, carbon monoxide, carbon dioxide, hydrogen and water. Only oxygen content is varied leading to different gas mixtures characterized by three ratios R = HC/O-2. Concerning the cell components, a cermet made of nickel and an electrolyte material, Ce0.9Gd0.1O1.95 (CGO) is used as anode and two cathode materials, La0.6Sr0.4Co0.2Fe0.8O3-delta (LSCF) and Pr2NiO4+delta (PNO), are evaluated. The prepared cells are investigated in the various gas mixtures for temperatures ranging from 450 degrees C to 600 degrees C. Ni-CGO/CGO/LSCF-CGO cell has delivered a maximum power density of 15 mW cm(-2) at 500 degrees C with R = HC/O-2 = 0.21, while lower power densities are obtained for the other ratios, R = 0.44 and R = 0.67. Afterwards, LSCF and PNO cathode materials are compared and LSCF is found to deliver the highest power densities. Finally, by improving the electrolyte microstructure, some cells presenting a maximum power density of 25 mW cm(-2) at 550 degrees C are produced. Moreover, up to 17% of initial HC are eliminated in the gas mixture. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：356 / 364

页数：9

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