100° Temperature Reduction of Wet Methane Combustion: Highly Active Pd–Ni/Al2O3 Catalyst versus Pd/NiAl2O4

The crucial role of Ni mode addition to Pd catalysts for low-temperature wet methane combustion is addressed, resulting in excellent performance of ultralow-Ni-containing catalysts versus inactive nickel–alumina spinel. Traditional impregnation–calcination and colloidal techniques of bimetallic cata...

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Bibliographic Details
Published inACS catalysis Vol. 5; pp. 2916 - 2920
Main Authors Shen, Jing, Hayes, Robert E, Wu, Xiaoxing, Semagina, Natalia
Format Journal Article
LanguageEnglish
Japanese
Published American Chemical Society 01.05.2015
Subjects
methane combustion
nickel
spinel
palladium
bimetallic nanoparticles
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Summary:The crucial role of Ni mode addition to Pd catalysts for low-temperature wet methane combustion is addressed, resulting in excellent performance of ultralow-Ni-containing catalysts versus inactive nickel–alumina spinel. Traditional impregnation–calcination and colloidal techniques of bimetallic catalyst preparation yield monometallic Pd particles on a binary NiAl2O4 support and Pd and Ni nanoparticles on the parent Al2O3 support, respectively. The catalyst is potentially valuable for natural gas catalytic combustion technologies because it decreases the required temperature for complete methane combustion in 5% water presence in the feed by 100 degrees versus monometallic Pd.
ISSN:2155-5435
2155-5435
DOI:10.1021/acscatal.5b00060