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Article

Towards High Efficacy of Pd-Au/C Catalyst for Tetrachloromethane Hydrodechlorination

1
Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
2
Institute of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego 18A, 44-100 Gliwice, Poland
3
Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland
*
Authors to whom correspondence should be addressed.
Received: 26 January 2021 / Revised: 9 February 2021 / Accepted: 18 February 2021 / Published: 1 March 2021
(This article belongs to the Section Catalysis)
We present an efficient strategy for synthesising the PdAu catalysts with a homogeneous PdAu alloy phase for environmentally important hydrodechlorination of tetrachloromethane in the gas phase. The synthesis of carbon-supported catalysts involved two major steps: (i) incorporation of palladium and gold nanoparticles into carbon support and (ii) activation of the catalysts. The critical part of this work was to find the optimal conditions for both steps. Thus, the incorporation of the nanoparticles was carried out in two ways, by impregnation and direct redox reaction method using acetone solutions of metal precursor salts. The activation was performed either by a conventional thermal reduction in hydrogen or flash irradiation in a microwave oven. The homogeneity and structure of the PdAu alloy were found to depend on the catalyst activation method critically. In all cases, we observed better homogeneity for catalysts that were subject to microwave irradiation. Moreover, the flash microwave irradiation of prepared catalysts provided catalysts of better stability and selectivity towards the desired products (hydrocarbons) in the hydrodechlorination of tetrachloromethane as compared to the catalyst obtained by conventional thermal activation in hydrogen. View Full-Text
Keywords: hydrodechlorination; microwave irradiation; bimetallic catalysts; heterogeneous catalysis hydrodechlorination; microwave irradiation; bimetallic catalysts; heterogeneous catalysis
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MDPI and ACS Style

Bonarowska, M.; Kaszkur, Z.; Matus, K.; Drelinkiewicz, A.; Szumełda, T.; Kubas, A. Towards High Efficacy of Pd-Au/C Catalyst for Tetrachloromethane Hydrodechlorination. Chemistry 2021, 3, 338-359. https://0-doi-org.brum.beds.ac.uk/10.3390/chemistry3010025

AMA Style

Bonarowska M, Kaszkur Z, Matus K, Drelinkiewicz A, Szumełda T, Kubas A. Towards High Efficacy of Pd-Au/C Catalyst for Tetrachloromethane Hydrodechlorination. Chemistry. 2021; 3(1):338-359. https://0-doi-org.brum.beds.ac.uk/10.3390/chemistry3010025

Chicago/Turabian Style

Bonarowska, Magdalena, Zbigniew Kaszkur, Krzysztof Matus, Alicja Drelinkiewicz, Tomasz Szumełda, and Adam Kubas. 2021. "Towards High Efficacy of Pd-Au/C Catalyst for Tetrachloromethane Hydrodechlorination" Chemistry 3, no. 1: 338-359. https://0-doi-org.brum.beds.ac.uk/10.3390/chemistry3010025

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