Understanding and Tuning the Effects of H₂O on Catalytic CO and CO₂ Hydrogenation

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(21), P. 12006 - 12085

Published: Oct. 31, 2024

Catalytic COx (CO and CO2) hydrogenation to valued chemicals is one of the promising approaches address challenges in energy, environment, climate change. H2O an inevitable side product these reactions, where its existence effect are often ignored. In fact, significantly influences catalytic active centers, reaction mechanism, performance, preventing us from a definitive deep understanding on structure-performance relationship authentic catalysts. It necessary, although challenging, clarify provide practical strategies tune concentration distribution optimize influence. this review, we focus how induces structural evolution catalysts assists processes, as well efforts understand underlying mechanism. We summarize discuss some representative tuning for realizing rapid removal or local enrichment around catalysts, along with brief techno-economic analysis life cycle assessment. These fundamental understandings further extended reactions CO CO2 reduction under external field (light, electricity, plasma). also present suggestions prospects deciphering controlling applications.

Language: Английский

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Catalytic Applications of Natural Iron Oxides and Hydroxides: A Review

Catalysts, Journal Year: 2025, Volume and Issue: 15(3), P. 236 - 236

Published: Feb. 28, 2025

Iron oxides and hydroxides (Fe-OH) extracted from natural sources have garnered significant attention for their diverse catalytic applications. This article provides a comprehensive overview of the potential naturally occurring Fe-OH, focusing on influence preparation methods morphological characteristics application in heterogeneous catalysis. The unique physicochemical properties these catalysts, including high surface area, redox activity, tunable chemistry, make them promising candidates various processes. review discusses key reactions facilitated by such as advanced oxidation processes (AOPs), electrochemical applications, cracking, biodiesel production. Furthermore, it highlights recent advancements challenges utilizing materials catalysts. By presenting an analysis iron oxides, this aims to stimulate further research about use materials, which are widely distributed Earth’s crust.

Language: Английский

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Rational Design of Catalysts with Spinel Nanostructures for Thermal-Driven C1 Conversion

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(13), P. 9812 - 9828

Published: June 17, 2024

The oriented conversion of C1 molecules including CO, CO2, CH4, and CH3OH has received great attention in the past few decades because its essential role sustainable chemistry. Spinel oxides with fine hardness, thermal stability, tunable chemical properties are advantageous catalysts or precursors activation inert for production high-value-added chemicals. This review provides a thorough overview recent developments spinel-structured nanocatalysts processes thermal-driven conversion, highlighting advantages deriving active metals, stabilizing metal cations, constructing adjacent synergic sites, tuning oxygen vacancies. Finally, potential challenges development directions discussed application reactions.

Language: Английский

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Synergistic effect of Fe-Mn bimetallic sites with close proximity for enhanced CO2 hydrogenation performance

Frontiers of Chemical Science and Engineering, Journal Year: 2024, Volume and Issue: 18(11)

Published: July 20, 2024

Language: Английский

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Fundamentals and Advances in Photothermal CO2 Hydrogenation to Renewable Fuels over MOF-Hybrid Catalysts: A Review

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116291 - 116291

Published: March 1, 2025

Language: Английский

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The Effect of Altering CO2-Conversion on Iron-Based Direct CO2-Hydrogenation

Catalysis Today, Journal Year: 2025, Volume and Issue: unknown, P. 115240 - 115240

Published: Feb. 1, 2025

Language: Английский

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Selective C₂₊ Alcohol Synthesis from Syngas Boosted by MnO_x-Doped CoFe Bimetallic Alloy Carbide Catalysts

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 4069 - 4080

Published: Feb. 21, 2025

Direct synthesis of higher alcohols (HA) from syngas is an attractive route for converting nonpetroleum carbon feedstocks into high value-added fuels and chemical products. CoFe alloy carbide catalysts are promising this reaction, but facilitating the formation still challenging. Herein, a series Mn-promoted with regulated proximity between Mn CoFe2O4 were prepared. It was found that manganese species close intimacy greatly facilitated ε'-(CoxFe1–x)2.2C, reaching maximum content 88.4 wt % over Mn0.25Co1Fe2 catalyst. A space-time yield toward HA 137.9 mmol·g(Co+Fe)–1·h–1 stability 300 h achieved catalyst, ranking top among literature. In addition, MnOx also promoted CO dissociation. The closely interacted ε'-(CoxFe1–x)2.2C sites benefited coupling CHx* CO*/CHO*, leading to modification Anderson-Schulz–Flory law enhanced C2+ fraction in total up 94.1 %. Moreover, optimized. This promotional effect may provide possibilities use alcohol synthesis.

Language: Английский

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Boosting CO2 hydrogenation over Fe-based catalyst via synergistic Ru-Na dual promotion

Molecular Catalysis, Journal Year: 2025, Volume and Issue: 582, P. 115176 - 115176

Published: May 9, 2025

Language: Английский

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Densely embedded homogeneous FeO nanoparticles in N-doped carbon frameworks: A 3D scaffold catalyst for high-temperature Fischer-Tropsch synthesis

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 158333 - 158333

Published: Dec. 1, 2024

Language: Английский

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Insights into the effect of Fe–Zn interaction on tunable reactivity in Fischer–Tropsch synthesis

Chemical Engineering Science, Journal Year: 2024, Volume and Issue: 301, P. 120650 - 120650

Published: Sept. 3, 2024

Language: Английский

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