Мақола

The Ti<sub>3</sub>AlC<sub>2</sub> MAX Phase as an Efficient Catalyst for Oxidative Dehydrogenation of n‐Butane

Wesley NgVan't Hoff Institute for Molecular Sciences University of Amsterdam P.O. Box 94157 1090GD Amsterdam The NetherlandsEdwin S. GnanakumarVan't Hoff Institute for Molecular Sciences University of Amsterdam P.O. Box 94157 1090GD Amsterdam The NetherlandsErdni D. BatyrevTata Steel, R&D Ijmuiden The NetherlandsSandeep Kumar SharmaRadiochemistry Division Bhabha Atomic Research Centre Mumbai 400 085 IndiaP.K. PujariRadiochemistry Division Bhabha Atomic Research Centre Mumbai 400 085 IndiaHeather F. GreerSchool of Chemistry University of St Andrews St Andrews KY16 9ST UKWuzong ZhouSchool of Chemistry University of St Andrews St Andrews KY16 9ST UKRidwan SakidjaDept. of Physics, Astronomy and Materials Science Missouri State University 901 South National Ave. Springfield MO 65897 USAGadi RothenbergVan't Hoff Institute for Molecular Sciences University of Amsterdam P.O. Box 94157 1090GD Amsterdam The NetherlandsMichel W. BarsoumDrexel University Department of Materials Science & Engineering Philadelphia PA 19104 USAN. Raveendran ShijuVan't Hoff Institute for Molecular Sciences University of Amsterdam P.O. Box 94157 1090GD Amsterdam The Netherlands

2017en

ABI

Аннотация

Abstract Dehydrogenation or oxidative dehydrogenation (ODH) of alkanes to produce alkenes directly from natural gas/shale gas is gaining in importance. Ti 3 AlC 2 , a MAX phase, which hitherto had not been used in catalysis, efficiently catalyzes the ODH of n‐butane to butenes and butadiene, which are important intermediates for the synthesis of polymers and other compounds. The catalyst, which combines both metallic and ceramic properties, is stable for at least 30 h on stream, even at low O 2 :butane ratios, without suffering from coking. This material has neither lattice oxygens nor noble metals, yet a unique combination of numerous defects and a thin surface Ti 1− y Al y O 2− y /2 layer that is rich in oxygen vacancies makes it an active catalyst. Given the large number of compositions available, MAX phases may find applications in several heterogeneously catalyzed reactions.

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Идентификаторлар

DOI: 10.1002/ange.201702196

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