1. Efficient propane mineralization over unsaturated Pd cluster/CeO 2 with prominent C-C cleavage capacity driven by inherent oxygen activation ability.
- Author
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Xia L, Xu S, Jian Y, Feng X, Jiang Z, Wang J, Li Y, Wang Y, Chai S, Liu Y, Peng H, Albilali R, and He C
- Abstract
Light alkanes extensively presented in industrial exhausts have led tremendous harm to the atmospheric environment and human health. However, the catalytic destruction of light alkanes generally operates at elevated temperatures and the consequent reaction by-products are inevitably produced. It is therefore of great significance to engineer catalysts with superior thermal stability, internal activity and selectivity. Herein, we developed a Pd cluster/CeO
2 catalyst (Pdn /CeO2 ) by a scalable deposition precipitation strategy, which demonstrates unexpected activity and thermal stability in the presence of 5% H2 O attributing to abundant unsaturated Pd metal sites and excellent oxygen dissociation performance. Pdn /CeO2 possesses a highly efficient C-C cleavage capability due to the persistent formation of a large number of oxygen vacancies. In comparison, the Pd1 /CeO2 catalyst, which is preferential for C-H bond cleavage and inactive for C-C bond cracking, produces remarkable hazardous organic by-products such as propyne and propylene, inhibiting the continuous decomposition of propane. The present study sheds critical insights into engineering efficient and stable catalysts for light alkane destruction., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier B.V. All rights reserved.)- Published
- 2024
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