Contiguous Mo Species and SMSI Effect in MoOx Reinforce Catalytic Performance in Reverse Water–Gas Shift Reaction DOI
Takehiro Yamada, Yasutaka Kuwahara, Hiromi Yamashita

et al.

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

Published: April 21, 2025

Reverse water-gas shift (RWGS) reaction is a promising strategy for the effective valorization of CO2. Because its endothermic nature, high-performance catalyst with high durability at temperatures has been required. Herein, we reveal dynamic structural changes platinum-loaded molybdenum suboxide catalysts (Pt/MoOx) in RWGS by multiple operando and situ measurements, exhibits activity CO selectivity, as well stability 500 °C due to emergence contiguous Mo species (Mo--Mo) strong metal-support interaction (SMSI) effect MoOx. In X-ray absorption fine structure (XAFS) measurements demonstrated that driven reversible redox situ-formed MoOx suboxide, where Mo--Mo act activation sites Comprehensive analysis revealed shell surrounding Pt nanoparticles (NPs) suppresses adsorption, thereby resulting selectivity. Furthermore, exhibited continuous increase earlier stage operation °C, which was attributed partial carburization during associated electron density species. These findings advance understanding mechanism suggest innovative strategies development oxide enhanced stability.

Language: Английский

Synergize Strong and Reactive Metal‐Support Interactions to Construct Sub‐2 nm Metal Phosphide Cluster for Enhanced Selective Hydrogenation Activities DOI
Zemin Chen, Xinyu Li,

Guangyue Xu

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 64(1)

Published: Sept. 24, 2024

Strong metal-support interactions (SMSI) are crucial for stabilizing sub-2 nm metal sites, e.g. single atom (M

Language: Английский

Citations

4
Recent advances in improving utilization efficiency of precious metal catalysts for hydrogen generation from hydrolysis of ammonia borane DOI
Wenjing Xu, Mei Liu,

Kexin Xu

et al.

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 529, P. 216445 - 216445

Published: Jan. 13, 2025

Language: Английский

Citations

0
Enhanced photothermal methane dry reforming through electronic interactions between nickel and yttrium DOI
Xueying Zhang, Zeshu Zhang, Qishun Wang

et al.

Nanoscale Horizons, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

In this study, a Y-doped Ni-based photothermal catalyst (NiY/KCC-1) was designed for the DRM reaction. Y–Ni electron transfer stabilizes more active sites (Ni 0 ), and then enhances effect, leading to excellent catalytic performance.

Language: Английский

Citations

0
Platinum Group Metal‐Indium Carbon‐Interstitial Compounds for Hydrogen Production DOI Creative Commons
Xiaopeng Liu, Ankang Jia, Kezhu Jiang

et al.

EcoMat, Journal Year: 2025, Volume and Issue: 7(4)

Published: March 21, 2025

ABSTRACT Carbon‐interstitial compounds of precious metal alloys (C i ‐PMA) have attracted increased attention as effective catalytic materials, but their precise and controllable synthesis remains significant challenges. Herein, we established a universal approach for the straightforward supported C ‐platinum group metal‐indium (M 3 InCx, M = Pt, Pd, Ni, x 0.5 or 1). The control experiment results indicate that atoms in Pt InC come from solvent. Furthermore, 0.2 wt.% /SiO 2 exhibits excellent performance aqueous phase reforming (APR) methanol (CH OH) to produce hydrogen, with productivity turnover frequency 310.0 −1 mol·kgcat·h 30 126 h at 200°C, which are 1.7 times greater than those In/SiO . infrared CH OH adsorption reveal substantially better APR is due its significantly enhanced CH bond dissociation ability. This study not only provides controlled ‐PMA also stimulates fundamental research into catalysis other applications.

Language: Английский

Citations

0
Contiguous Mo Species and SMSI Effect in MoOx Reinforce Catalytic Performance in Reverse Water–Gas Shift Reaction DOI
Takehiro Yamada, Yasutaka Kuwahara, Hiromi Yamashita

et al.

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

Published: April 21, 2025

Reverse water-gas shift (RWGS) reaction is a promising strategy for the effective valorization of CO2. Because its endothermic nature, high-performance catalyst with high durability at temperatures has been required. Herein, we reveal dynamic structural changes platinum-loaded molybdenum suboxide catalysts (Pt/MoOx) in RWGS by multiple operando and situ measurements, exhibits activity CO selectivity, as well stability 500 °C due to emergence contiguous Mo species (Mo--Mo) strong metal-support interaction (SMSI) effect MoOx. In X-ray absorption fine structure (XAFS) measurements demonstrated that driven reversible redox situ-formed MoOx suboxide, where Mo--Mo act activation sites Comprehensive analysis revealed shell surrounding Pt nanoparticles (NPs) suppresses adsorption, thereby resulting selectivity. Furthermore, exhibited continuous increase earlier stage operation °C, which was attributed partial carburization during associated electron density species. These findings advance understanding mechanism suggest innovative strategies development oxide enhanced stability.

Language: Английский

Citations

0