Steam-created grain boundaries for methane C–H activation in palladium catalysts | Zendy

Weixin Huang | Zendy; Aaron C. JohnstonPeck | Zendy; Trenton J. Wolter | Zendy; WeiChang Yang | Zendy; Lang Xu | Zendy; Jinwon Oh | Zendy; Benjamin A. Reeves | Zendy; Chengshuang Zhou | Zendy; Megan E. Holtz | Zendy; Andrew A. Herzing | Zendy; Aaron M. Lindenberg | Zendy; Manos Mavrikakis | Zendy; Matteo Cargnello | Zendy

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Steam-created grain boundaries for methane C–H activation in palladium catalysts

Author(s) -

Weixin Huang,

Aaron C. JohnstonPeck,

Trenton J. Wolter,

WeiChang Yang,

Lang Xu,

Jinwon Oh,

Benjamin A. Reeves,

Chengshuang Zhou,

Megan E. Holtz,

Andrew A. Herzing,

Aaron M. Lindenberg,

Manos Mavrikakis,

Matteo Cargnello

Publication year - 2021

Publication title -

science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 12.556

H-Index - 1186

eISSN - 1095-9203

pISSN - 0036-8075

DOI - 10.1126/science.abj5291

Subject(s) - palladium , catalysis , methane , grain boundary , materials science , chemistry , chemical engineering , metallurgy , organic chemistry , engineering , microstructure

Going with the grain Changes in surface structure can make metal nanoparticles supported on oxides more active for certain catalytic reactions. Huanget al . show that steam pretreatment of palladium nanoparticles on alumina led to a high density of twin boundaries, unlike other oxidation and reduction pretreatments. The density of these stable grain boundaries at the surface correlated with higher methane oxidation rates and lower temperatures for the initiation of the reaction. The introduction of additional defect sites through laser ablation created even more active catalysts. —PDS

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