CO2 hydrogenation to methanol on Cu-ZnO/AlLaO with high activity and hydrothermal stability

Applied Catalysis A General, Journal Year: 2025, Volume and Issue: 692, P. 120098 - 120098

Published: Jan. 2, 2025

Language: Английский

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CuZnO_x Active Sites Anchored on the Silanols of Hollow Silicalite-1 Zeolite Enhance CO₂ Hydrogenation to Methanol

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 5412 - 5425

Published: March 18, 2025

Language: Английский

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Crystal facet regulation of Ru/CeO2 catalysts towards boosted low-temperature CO2 methanation

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: 13(2), P. 115700 - 115700

Published: Feb. 3, 2025

Language: Английский

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Oxygen Vacancies Promote Formaldehyde Base-Free Reforming into Hydrogen over Cu Doping-Induced Cu–Cu_xZn_1–xO Heterointerfaces

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

Published: Feb. 12, 2025

Element doping is a viable strategy to regulate the metal–support interface for enhancing catalytic performance of supported metal catalysts. Herein, Cu/ZnO:Cu-TH catalysts are prepared by immobilizing Cu nanoparticles (NPs) on ZnO nanorods featuring an adjustable oxygen vacancy, in which partial atoms at Cu–ZnO incorporated into lattice form CuxZn1–xO species. Such atom induces creation distinctive Cu–CuxZn1–xO sites and optimizes electron transfer from NPs, thereby achieving intermediate activation ultimately endowing catalyst with superior reforming alkali-free formaldehyde (HCHO) hydrogen low temperatures. The serve as pivotal centers HCHO reforming, where selectively engage cleavage C–H bonds O–H H2O, respectively. Meanwhile, presence vacancies bolsters adsorption further improving activity. Cu/ZnO:Cu-450H catalyst, distinguished abundant high concentration vacancies, demonstrates optimal activity TOF values 16.9 72.4 h–1 under anaerobic aerobic conditions, respectively, 8.9 29.0 times higher than those Cu/ZnO-450N lacks doped vacancies.

Language: Английский

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Generating Strong Metal–Support Interaction and Oxygen Vacancies in Cu/MgAlO_x Catalysts by CO₂ Treatment for Enhanced CO₂ Hydrogenation to Methanol

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

Published: Jan. 3, 2025

Strong metal-support interactions (SMSIs) are essential for optimizing the performance of supported metal catalysts by tuning metal-oxide interface structures. This study explores hydrogenation CO

Language: Английский

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Insight Into the Dynamic Active Sites and Catalytic Mechanism for CO₂ Hydrogenation Reaction

Wiley Interdisciplinary Reviews Computational Molecular Science, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 1, 2025

ABSTRACT The catalytic CO 2 hydrogenation to produce valuable fuels and chemicals holds immense importance in addressing energy scarcity environmental degradation. Given that the real reaction system is complex dynamic, structure of catalysts might experience dynamic evolution under conditions. It implies active sites only generated during process. induction factor could be reactants, intermediates, products, other local chemical environments. Utilizing in‐situ/operando characterization techniques allows for real‐time observation process, further combining multiscale theoretical simulations can effectively reveal refined mechanisms. Herein, we summarized latest advancements understanding mechanisms process C 1 products (CH 3 OH, CO, CH 4 ). evolutions catalyst morphology, size, valence state, interface between component support were discussed, respectively. Future research benefit from more in‐situ simulation explore microstructure mechanism, aiming high conversion selectivity reactions.

Language: Английский

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Gallium-Induced Structural Modification over Gel-Derived CuZnGaAlOx Catalysts for Methanol Steam Reforming

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

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Mechanochemical synthesis of Na promoted Fe-Cu catalyst for CO2 hydrogenation to multicarbon hydrocarbons

Fuel, Journal Year: 2025, Volume and Issue: 393, P. 135036 - 135036

Published: March 14, 2025

Language: Английский

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Oxygen Vacancy Engineering for Enhancing Catalytic Performance in CO₂ Hydrogenation: Recent Advances and Future Directions

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

Published: April 1, 2025

Abstract CO 2 is a major contributor to global warming, leading severe environment and human health consequences. Catalytic hydrogenation has emerged as one of the most promising strategies mitigate emissions. However, catalytic performance existing catalysts remains suboptimal. Recent studies have highlighted potential oxygen vacancy (OV) engineering enhance by activating reactants, accelerating electron transport, tuning surface chemical properties catalysts. Despite its importance, comprehensive review OV in reactions lacking. This systematically examines recent advancements for design novel materials reactions. It covers key aspects such construction methods, characterization techniques, functions OVs. Additionally, addresses challenges catalyst synthesis characterization, while outlining future directions field. aims provide valuable insights development highly efficient

Language: Английский

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Optimizing CO2 hydrogenation to methanol by enriching ZnOx/Cu interfacial sites in Zn-dispersed HKUST-1 derived catalysts

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125334 - 125334

Published: April 1, 2025

Language: Английский

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