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Steam reforming of methane over highly active and KOH-resistant Ni/γ-Al2O3 catalysts for direct internal reforming (DIR) in a molten carbonate fuel cell (MCFC)

Paper ID Volume ID Publish Year Pages File Format Full-Text
42010 45907 2010 5 PDF Available
Title
Steam reforming of methane over highly active and KOH-resistant Ni/γ-Al2O3 catalysts for direct internal reforming (DIR) in a molten carbonate fuel cell (MCFC)
Abstract

For direct internal reforming (DIR) in molten carbonate fuel cells (MCFCs), steam reforming of methane has been carried out over Ni/γ-Al2O3 catalysts prepared by a homogeneous precipitation method. During the synthesis of Ni/γ-Al2O3 catalysts, various synthesis parameters have been systematically manipulated to develop a highly active and KOH-resistant catalyst for DIR in MCFCs. Compared with a commercial catalyst, 52% Ni/γ-Al2O3 prepared with a precursor concentration of 0.18 M and a urea concentration of 6 M exhibited very high activity with strong resistance against KOH due to the selective adsorption of KOH on the γ-Al2O3 support.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (61 K)Download as PowerPoint slideResearch highlights▶ 52% Ni/γ-Al2O3 catalyst exhibited higher KOH resistance than the commercial catalyst. ▶ This is due to selective adsorption of KOH on strong acid sites of a γ-Al2O3 support. ▶ The urea concentration is a key parameter to prepare highly KOH-resistant catalyst.

Keywords
Direct internal reforming; Molten carbonate fuel cell; KOH; Ni/γ-Al2O3
First Page Preview
Steam reforming of methane over highly active and KOH-resistant Ni/γ-Al2O3 catalysts for direct internal reforming (DIR) in a molten carbonate fuel cell (MCFC)
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 383, Issues 1–2, 31 July 2010, Pages 156–160
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis