Reaction-induced regioselective reconstruction of Ni-doped Ce(OH)3/CeO2 enables exceptional activity and selectivity for reverse water-shift reaction DOI Creative Commons
Yongquan Qu, Wenbin Li, Bing Liu

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 25, 2024

Abstract Reconstruction of catalysts by reaction environments represents a viable approach to create highly performed active sites. Herein, we developed reaction-induced regioselective reconstruction Ni-doped Ce(OH)3/CeO2 nanorods form dual-active sites composed carburized Ni clusters and frustrated Lewis pairs (FLPs), delivering exceptional activity, selectivity stability for reverse water-gas shift reaction. aggregation in the Ce(OH)3 region, coupled with in-situ carbonization catalytically generated CO during reaction, induced formation clusters, which effectively promoted H2 dissociation. Additionally, doping CeO2 region Ce(OH)3-to-CeO2 phase transition introduced more oxygen vacancies thereby FLPs CeO2, facilitated CO2 adsorption subsequent hydrogenation spilled H* species from clusters. Weak on both significantly suppressed methanation side-reaction. This strategy provides new avenue designing catalysts.

Language: Английский

Data-driven analysis of property-performance correlations in dual functional materials for CO2 capture and utilization DOI
Lukas C. Buelens,

Louis Van de Voorde,

Varun Singh

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159596 - 159596

Published: Jan. 1, 2025

Language: Английский

Citations

0
Mechanistic insights into the selectivity switch in CO2 reduction over Ni/SiO2 and NiMo/SiO2 catalysts: A combined study of temperature programmed desorption, infrared spectroscopy and kinetics DOI
Ruoyu Zhang, Changjun Liu,

Jinyu Han

et al.

Journal of Catalysis, Journal Year: 2025, Volume and Issue: 443, P. 115994 - 115994

Published: Jan. 31, 2025

Language: Английский

Citations

0
Thermal Activation and Deactivation of Ni‐Doped Ceria Catalysts in CO2 Methanation DOI Creative Commons
Mathias Barreau, Davide Salusso,

Jinming Zhang

et al.

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

Published: Feb. 6, 2025

Discovered almost 130 years ago by P. Sabatier, CO 2 hydrogenation to methane (CO methanation) is presently attracting attention as one of the most promising methods for storing intermittent renewable energy in form chemical fuels. Ni particles supported CeO constitute a very effective, reliable, and reasonably priced catalyst methanation. Recently new type methanation catalyst, consisting cerium oxide (ceria) nanoparticles doped with nickel (NiCeO x ) specific square‐planar configuration an extremely high‐Ni mass‐specific activity 100% CH 4 selectivity, was reported. Here, 50% enhancement conversion NiCeO carefully adjusting calcination temperature demonstrated. Notably, thermal aging at 600 °C enhances performance partially exsolving surface, while higher temperatures (750 °C) lead larger particles, increased production, surface carbon deposition. Several situ operando characterization are employed correlate activation deactivation its nanoscale characteristics. Apart from their clear implications design next‐generation Ni‐based catalysts, these findings significantly enhance understanding complex interplay nature various sites involved hydrogenation.

Language: Английский

Citations

0
Synthesis of the NiO-Faujasite Nanocatalyst for Dry Reforming of Methane: The Effect of the Aniline Additive DOI Creative Commons
Ari Susandy Sanjaya,

Yahia Hakmi,

Mohammed A. Sanhoob

et al.

ACS Omega, Journal Year: 2025, Volume and Issue: unknown

Published: April 18, 2025

Language: Английский

Citations

0
Identification of active sites and mechanism of CO2 methanation over Ni/CeO2 catalysts DOI
Zhaorui Zhang, Zhaohui Li, Xiao Han

et al.

Journal of Rare Earths, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

Citations

0
Constructing Co Cluster Sites for Selective CO<sub>2</sub> Hydrogenation via Phase Segregation from Co-Doped TiO<sub>2</sub> Nanocrystals DOI Creative Commons
Xiangru Wei, Yizhen Chen, Yulu Zhang

et al.

Published: Jan. 23, 2025

Article Constructing Co Cluster Sites for Selective CO2 Hydrogenation via Phase Segregation from Co-Doped TiO2 Nanocrystals Xiangru Wei 1, Yizhen Chen Yulu Zhang Liyue Lu Ma 2, Matthew M. Yung 3 and Sen 1,* 1 Department of Chemistry, University Virginia, Charlottesville, VA 22904, USA 2 National Synchrotron Light Source II, Brookhaven Laboratory, Upton, NY 11973, Bioenergy Science Technology Directorate, Renewable Energy Denver West Parkway, Golden, CO 80401, * Correspondence: [email protected] Received: 7 November 2024; Revised: January 2025; Accepted: Published: 23 2025 Abstract: This article presents a phase segregation strategy creating stable cluster catalytic sites on TiO2, enabling selective hydrogenation to CO. Through oxidative calcination, pre-synthesized Co-doped brookite nanorods transform into mixed phase, leading the species. The resulting clusters, stabilized by strong Co-TiO2 interactions during reductive hydrogenation, effectively suppress formation larger nanoparticles. undercoordinated these clusters promote high production rate with near-unit selectivity, contrasting nanoparticles, which favor CH4 under identical conditions. In-situ diffuse reflectance infrared Fourier spectroscopy (DRIFTS) analysis indicates that weakened adsorption is key their enhanced highlighting this method as promising approach efficient utilization.

Language: Английский

Citations

0
Reaction-induced regioselective reconstruction of Ni-doped Ce(OH)3/CeO2 enables exceptional activity and selectivity for reverse water-shift reaction DOI Creative Commons
Yongquan Qu, Wenbin Li, Bing Liu

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 25, 2024

Abstract Reconstruction of catalysts by reaction environments represents a viable approach to create highly performed active sites. Herein, we developed reaction-induced regioselective reconstruction Ni-doped Ce(OH)3/CeO2 nanorods form dual-active sites composed carburized Ni clusters and frustrated Lewis pairs (FLPs), delivering exceptional activity, selectivity stability for reverse water-gas shift reaction. aggregation in the Ce(OH)3 region, coupled with in-situ carbonization catalytically generated CO during reaction, induced formation clusters, which effectively promoted H2 dissociation. Additionally, doping CeO2 region Ce(OH)3-to-CeO2 phase transition introduced more oxygen vacancies thereby FLPs CeO2, facilitated CO2 adsorption subsequent hydrogenation spilled H* species from clusters. Weak on both significantly suppressed methanation side-reaction. This strategy provides new avenue designing catalysts.

Language: Английский

Citations

0