Design and synthesis of porous nano-confined catalysts for VOCs oxidation: A critical review based on pollutant sorts

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 352, P. 128158 - 128158

Published: May 28, 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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Silica-assisted Pt1/CeO2 single-atom catalyst for enhancing the catalytic combustion performance of VOCs by inducing H2O activation

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 354, P. 124152 - 124152

Published: May 4, 2024

Language: Английский

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Producing Pd single site on cerium oxides using ball milling process to accelerate catalytic VOCs removal efficiency: experimental and DFT + U study

Journal of Thermal Analysis and Calorimetry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 23, 2025

Language: Английский

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Structure-selectivity relevance of multiple-component catalysts for CVOCs’ complete oxidation: State-of-the-art and perspectives

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 354, P. 128964 - 128964

Published: July 25, 2024

Language: Английский

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Macroporosity-Heightened Mass Transfer Enabling Complete Benzene Oxidation over Pt/SiO₂ Catalyst

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Mass transfer governs the overall catalytic performance of heterogeneous catalysts considerably; however, this fundamental research has often been ignored. Here, macroporous SiO2-supported Pt nanoparticle (Pt/SiO2-M) and mesoporous (Pt/SiO2-m) were specifically fabricated by a facile thermal reduction step to engineer resultant nanoparticles showing similar physiochemical properties while possessing completely different porous microstructures exclusively originating from SiO2 supports. On basis, platform explore crucial mass difference affecting activity is then established systematically practicing industry-important benzene oxidation measurements. State-of-the-art characterization techniques confirmed that all as-synthesized Pt/SiO2 indeed exhibited almost identical sites, excluding discrepancies raised nanoparticles. Importantly, Pt/SiO2-M displayed complete capabilities at lower temperature than for Pt/SiO2-m, accrediting macroporosity-induced faster desorption rate H2O CO2, thus making it capable enhancing high utilization sites. This work highlights importance improving capability toward supported nanoparticulate catalysts, demonstrating significance designing novel supports catalysis implications.

Language: Английский

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Cooking Oil Fumes: A Comprehensive Review of Emission Characteristics and Catalytic Oxidation Strategies

ACS ES&T Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Language: Английский

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Chromogen-embedded metal–organic frameworks nanozyme for smartphone-assisted visual detection of H2O2 and ampicillin

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160066 - 160066

Published: Feb. 1, 2025

Language: Английский

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Ohmic Contact Heterostructures Immobilized Pt Single Atoms for Boosting Alkaline Hydrogen Evolution Reaction

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 3, 2025

Abstract Pt single‐atoms catalysts have been widely confirmed as ideal electrocatalysts for high‐efficiency hydrogen evolution reaction (HER), but their activity and durability at high current density remain great challenges, especially in alkaline media. Herein, a unique Ohmic contact heterostructure is fabricated by integrating Ni NiO to immobilize (Ni‐NiO‐Pt) via Pt‐O 4 coordination boosting the HER. Owing transient temperature pressure laser ablation process, heterojunctions are constructed interfaces between metal core nanoporous semiconducting shell with adequate oxygen vacancies. The large work function difference triggers electron transfer from Pt‐decorated NiO, which dramatically eliminates conduction impedance regulates charge redistribution. Density functional theory calculation unveils that multiple regulations of energy barrier redistribution on endow Ni‐NiO‐Pt outstanding electrical conductivity favorable binding energy. Consequently, displays superior HER performances an overpotential 23.54 mV 10 mA cm −2 protruding 75 h 500 , drastically outperforming commercial Pt/C most reported electrocatalysts. immobilization opens up avenue toward rational design

Language: Английский

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Construction of Electron-Enriched Pt^δ+ with Reactive Oxygen Species for Enhanced Propane Catalytic Combustion

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

The complete catalytic oxidation of propane (C3H8) at low temperatures remains challenging due to the competitive adsorption between O2 and C3H8 molecules. In this study, we propose an innovative approach enhance by strategically designing active Ptδ+ sites with modulated electronic structures on F-doped TiO2-supported Pt catalyst (Pt/F-TiO2), which exhibits 50 90% conversion 200 320 °C. Our mechanistic study reveals that electron coupling 5d F 2p alters d orbital property, leads generation abundant efficient electron-enriched species. These new facilitate promote activation chemisorbed into superoxide species, in form bridge Pt-(O–O)ad-Ti, synergistically facilitates methyl C–H cleavage C3H8. This presents strategy for structure engineering Pt-based catalysts, paving way development high-performance catalysts oxidation.

Language: Английский

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