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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Ti3AlC2 MAX phase as an efficient catalyst for oxidative dehydrogenation of n-butane
AU - Ng, Wesley H. K.
AU - Gnanakumar, Edwin S.
AU - Batyrev, Erdni
AU - Sharma, Sandeep K.
AU - Pujari, Pradeep K.
AU - Greer, Heather F.
AU - Zhou, Wuzong
AU - Sakidja, Ridwan
AU - Rothenberg, Gadi
AU - Barsoum, Michel W.
AU - Raveendran, Shiju
PY - 2018/1/9
Y1 - 2018/1/9
N2 - Abstract Dehydrogenation or oxidative dehydrogenation (ODH) of alkanes to produce alkenes directly from natural gas/shale gas is gaining in importance. Ti3AlC2, 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 O2: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 Ti1?yAlyO2?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.
AB - Abstract Dehydrogenation or oxidative dehydrogenation (ODH) of alkanes to produce alkenes directly from natural gas/shale gas is gaining in importance. Ti3AlC2, 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 O2: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 Ti1?yAlyO2?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.
U2 - 10.1002/anie.201702196
DO - 10.1002/anie.201702196
M3 - Journal article
VL - 57
SP - 1485
EP - 1490
JO - Angewandte Chemie International Edition
JF - Angewandte Chemie International Edition
SN - 1433-7851
IS - 6
ER -