Durability of anode supported Solid Oxides Fuel Cells (SOFC) under direct dry-reforming of methane

被引：122

作者：

Lanzini, A. ^{[1
]}

Leone, P. ^{[1
]}

Guerra, C. ^{[1
]}

Smeacetto, F. ^{[2
]}

Brandon, N. P. ^{[3
]}

Santarelli, M. ^{[1
]}

机构：

[1] Politecn Torino, Dept Energy, I-10129 Turin, Italy

[2] Politecn Torino, Dept Appl Sci & Technol, I-10129 Turin, Italy

[3] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England

来源：

CHEMICAL ENGINEERING JOURNAL | 2013年 / 220卷

基金：

英国工程与自然科学研究理事会;

关键词：

SOFC; Dry-reforming; Biogas; Carbon deposition; Re-oxidation; CARBON DEPOSITION; NICKEL-CATALYSTS; SYNTHESIS GAS; BIOGAS; DECOMPOSITION; DEACTIVATION; GROWTH; CH4; CO;

D O I：

10.1016/j.cej.2013.01.003

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The present work investigates the performance and degradation mechanisms of a Ni-based anode supported Solid Oxides Fuel Cells (SOFC) operating at similar to 800 degrees C on direct internal reforming of dry CH4-CO2 mixtures. The catalytic properties of the anode support were first studied in a micro-reactor configuration to determine safe conditions (i.e., without carbon formation) under which a dry conversion of the methane can occur directly within the fuel cell. A full electrochemical characterization of complete cells followed to preliminarily assess their resistance towards carbon formation when operating on direct dry-reforming. Ageing tests of similar to 300 h each have been performed in galvanostatic mode, with impedance spectra taken every 50 h of continuous operation to monitor the trend over the time of the different polarization contributions. Post-mortem microstructural analysis was carried out after each experiment to verify the morphology and nucleation of carbon deposited in the anode electrode. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：254 / 263

页数：10

共 37 条

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