Single atomic Pt confined into lattice defect sites for low-temperature catalytic oxidation of VOCs

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 346, P. 123779 - 123779

Published: April 19, 2024

Language: Английский

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Recent Advances of the Effect of H₂O on VOC Oxidation over Catalysts: Influencing Factors, Inhibition/Promotion Mechanisms, and Water Resistance Strategies

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: 59(2), P. 1034 - 1059

Published: Jan. 6, 2025

Water vapor is a significant component in real volatile organic compounds (VOCs) exhaust gas and has considerable impact on the catalytic performance of catalysts for VOC oxidation. Important progress been made reaction mechanisms H2O water resistance strategies oxidation recent years. Despite advancements technology, most still exhibit low activity under humid conditions, presenting challenge reducing adverse effects To develop water-resistant catalysts, understanding mechanistic role implementing effective water-resistance with influencing factors are imperative. This Perspective systematically summarizes related research oxidation, drawing from over 390 papers published between 2013 2024. Five main proposed to clarify their H2O. inhibition/promotion introduced, elucidating various VOCs. Additionally, different kinds discussed, including fabrication hydrophobic materials, design specific structures morphologies, introduction additional elements catalyst modification. Finally, scientific challenges opportunities enhancing efficient practical applications purification highlighted.

Language: Английский

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Enhancing catalytic activity for toluene and acetone oxidation over ZraCo1-aOx catalysts by doping Zr to improve the oxygen activation capacity due to formation of Zr-O-Co bonds

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 465, P. 142857 - 142857

Published: April 11, 2023

Language: Английский

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New insight into opposite oxidation behavior in acetone and propane catalytic oxidation over CoMn based spinel oxides

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 476, P. 146550 - 146550

Published: Oct. 17, 2023

Language: Английский

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Recent advances and future challenges in the catalytic combustion of light hydrocarbon VOCs

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(13), P. 7470 - 7507

Published: Jan. 1, 2024

Various types of catalysts for the catalytic combustion light hydrocarbon VOCs and their superiority deficiency are described in detail. Meanwhile, reaction mechanisms structure–activity relationships illustrated intensively.

Language: Английский

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Ultrathin MnO2 with strong lattice disorder for catalytic oxidation of volatile organic compounds

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 653, P. 1205 - 1216

Published: Sept. 30, 2023

Language: Английский

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Enhancement mechanism of n-n homojunction δ/α-MnO2 with fast electron transfer characteristics for efficient photothermal synergistic catalytic oxidation of propane

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 349, P. 123920 - 123920

Published: April 24, 2024

Language: Английский

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Insights into the synergistic effect and catalytic mechanism in MnCeOx solid solution catalysts for low-temperature propane total oxidation

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 46, P. 104011 - 104011

Published: Feb. 2, 2024

Language: Английский

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Catalytic combustion of toluene performance over MnO_x catalysts: Effect of KMnO₄ content

Applied Organometallic Chemistry, Journal Year: 2024, Volume and Issue: 38(4)

Published: Feb. 5, 2024

MnO x samples were prepared and applied to the catalytic combustion of toluene. The results indicated that KMnO 4 content was important performance. Cat‐0.2 (0.2 g ) possessed best performance, more than 90% toluene conversion 255°C. Moderate amounts facilitated generation mixed crystalline phases structural defects, which led oxygen vacancies. In addition, high contents O ads /(O + latt Mn 3+ /(Mn 4+ ), promoted emergence‐annihilation cycle vacancies reaction process pathway investigated via in situ DRIFTS, by‐products included benzyl alcohol, benzaldehyde, benzoate, maleic anhydride, short‐chain carbonate. Among them, benzoate main intermediate oxidation

Language: Английский

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Screening the optimal Cox/CeO2(110) (x = 1–6) catalyst for methane activation in coalbed gas

International Journal of Coal Science & Technology, Journal Year: 2024, Volume and Issue: 11(1)

Published: May 31, 2024

Abstract The challenges posed by energy and environmental issues have forced mankind to explore utilize unconventional sources. It is imperative convert the abundant coalbed gas (CBG) into high value-added products, i.e., selective efficient conversion of methane from CBG. Methane activation, known as “holy grail”, poses a challenge design development catalysts. structural complexity active metal on carrier particular concern. In this work, we studied nucleation growth small Co clusters (up 6 ) surface CeO 2 (110) using density functional theory, which stable loaded Co/CeO structure was selected investigate activation mechanism. Despite relatively size clusters, obtained x /CeO exhibits interesting properties. optimized 5 optimal study mechanism due its competitive electronic structure, adsorption binding energy. barriers for stepwise dissociation form CH 3 *, CH*, C* radical fragments are 0.44, 0.55, 0.31, 1.20 eV, respectively, indicating that CH* dissociative dehydrogenation rate-determining step system under investigation here. This fundamental metal-support interactions based contributes understanding essence catalysts with promising catalytic behavior. provides theoretical guidance better designing catalyst tailored reactions.

Language: Английский

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