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Catalytic activity of ultrafine CexGdySmzO2 synthesized by metal organic complex method toward steam reforming of methane

Paper ID Volume ID Publish Year Pages File Format Full-Text
51358 46840 2010 5 PDF Available
Title
Catalytic activity of ultrafine CexGdySmzO2 synthesized by metal organic complex method toward steam reforming of methane
Abstract

CexGdySmzO2 synthesized by metal organic complex method has useful methane steam reforming activity under moderate temperatures. This preparation technique offers materials with fluorite structure and ultrafine particle (having particle sizes less than 106.54 nm after calcined at 900 °C). Among the materials with various Ce/Gd/Sm ratios, Ce0.8Gd0.05Sm0.15O2 showed the highest reforming rate (102.9 molCH4 kg− 1 h− 1) compared to 23.1 molCH4 kg−1 h−1 observed over undoped-CeO2. This good performance was proven to relate with the improvements of oxygen storage capacity (OSC) and lattice oxygen mobility by Sm- and Gd-doping, according to the temperature programmed reduction/temperature programmed oxidation (TPR/TPO) and 18O/16O isotope exchange studies.

Graphical AbstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch Highlights► CexGdySmzO2 synthesized by metal organic complex method has useful methane steam reforming activity. ► Ce0.8Gd0.05Sm0.15O2 shows high reforming rate (102.9 molCH4 kg− 1 h− 1) compared to 23.1 molCH4 kg−1 h−1 observed over undoped-CeO2. ► The good reforming performance is related to the improvements of oxygen storage capacity and lattice oxygen mobility by Sm- and Gd-doping.

Keywords
CeO2; Gd; Sm; Steam reforming; SOFC
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Catalytic activity of ultrafine CexGdySmzO2 synthesized by metal organic complex method toward steam reforming of methane
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 12, Issue 1, 25 October 2010, Pages 25–29
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
You save - $31
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Any Questions? feel free to contact us