Applied Catalysis2022，Vol.30316.DOI:10.1016/j.apcatb.2021.120891

Hexagonal BN- and BNO-supported Au and Pt nanocatalysts in carbon monoxide oxidation and carbon dioxide hydrogenation reactions

Kovalskii, Andrey M. Volkov, Ilia N. Evdokimenko, Nikolay D. Tkachenko, Olga P. Leybo, Denis V. Chepkasov, Ilya V. Popov, Zakhar I. Matveev, Andrei T. Manakhov, Anton Permyakova, Elizaveta S. Konopatsky, Anton S. Kustov, Alexander L. Golberg, Dmitri V. Shtansky, Dmitry V.
Applied Catalysis2022，Vol.30316.DOI:10.1016/j.apcatb.2021.120891
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  • NSTL
  • Elsevier

Hexagonal BN- and BNO-supported Au and Pt nanocatalysts in carbon monoxide oxidation and carbon dioxide hydrogenation reactions

Kovalskii, Andrey M. 1Volkov, Ilia N. 1Evdokimenko, Nikolay D. 1Tkachenko, Olga P. 2Leybo, Denis V. 1Chepkasov, Ilya V. 3Popov, Zakhar I. 2Matveev, Andrei T. 1Manakhov, Anton 1Permyakova, Elizaveta S. 1Konopatsky, Anton S. 1Kustov, Alexander L. 1Golberg, Dmitri V. 4Shtansky, Dmitry V.1
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作者信息

  • 1. Natl Univ Sci & Technol MISIS
  • 2. RAS
  • 3. Skolkovo Inst Sci & Technol
  • 4. Queensland Univ Technol QLD
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Abstract

Environmental protection requires solving the problem of utilization and reduction of CO and CO2 emissions. Herein, Au/h-BN(O) and Pt/h-BN(O) nanohybrids are thoroughly analyzed in CO oxidation and CO2 hydrogenation reactions. The nanohybrids differ in catalytic particle size and particle distribution. The particles are smaller (1-6 nm) and display a narrower size distribution in the case of Pt-based nanomaterials. The Pt/h-BN(O) nanohybrids exhibit high catalytic activity in CO conversion and carbon dioxide hydrogenation reactions. For both systems, the oxidative state of BN support affects the catalytic activity. The possible catalytic reaction mechanisms are proposed based on DFT calculations. A charge density distribution at the Pt/h-BN interface increases oxygen absorption, thereby accelerating oxygen-associated chemical reactions.

Key words

Carbon dioxide hydrogenation/Carbon monoxide oxidation/Catalytic activity/Hexagonal BN/LOW-TEMPERATURE OXIDATION/VALUE-ADDED PRODUCTS/BORON-NITRIDE/CO OXIDATION/STRUCTURAL EVOLUTION/CATALYTIC-ACTIVITY/GOLD CLUSTERS/GAS/DEHYDROGENATION/OXYGEN

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出版年

2022
Applied Catalysis

Applied Catalysis

ISSN：0926-3373
被引量15
参考文献量74
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