Boosted photothermal synergistic CO2 methanation over Ru doped Ni/ZrO2 catalyst: From experimental to DFT studies

Ding, Xin; Liu, Xu; Cheng, Jiahui; Li, Dan; Li, Tengfei; Jiang, Zhao; Guo, Yang

doi:10.1016/j.fuel.2023.129779

“…11 Ru doping for Ni/ZrO 2 significantly improved the CH 4 selectivity with almost 100% in a wide temperature range of 170 to 360 °C. 12 This provides ample evidence to support the potential of Ni catalysts and their doped modified counterparts as effective PTSC catalysts. However, Ni metal often encounters challenges such as high-temperature sintering and carbon deposition.…”

Section: Introductionmentioning

confidence: 85%

Hollow spherical Ni/ZrO₂ as a superior catalyst for syngas production from photothermal synergistic dry reforming of methane

Li,

Cheng,

Li

et al. 2024

Catal. Sci. Technol.

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Tuning Adsorbate‐Mediated Strong Metal‐Support Interaction by Oxygen Vacancy: A Case Study in Ru/TiO₂

Li,

Zhang,

An

et al. 2024

Angewandte Chemie

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The adsorbate‐mediated strong metal‐support interaction (A‐SMSI) offers a reversible means of altering the selectivity of supported metal catalysts, thereby providing a powerful tool for facile modulation of catalytic performance. However, the fundamental understanding of A‐SMSI remains inadequate and methods for tuning A‐SMSI are still in their nascent stages, impeding its stabilization under reaction conditions. Here, we report that the initial concentration of oxygen vacancy in oxide supports plays a key role in tuning the A‐SMSI between Ru nanoparticles and defected titania (TiO2‐x). Based on this new understanding, we demonstrate the in‐situ formation of A‐SMSI under reaction conditions, obviating the typically required CO2‐rich pretreatment. The as‐formed A‐SMSI layer exhibits remarkable stability at various temperatures, enabling excellent activity, selectivity and long‐term stability in catalyzing the reverse water gas‐shift reaction. This study deepens the understanding of the A‐SMSI and the ability to stabilize A‐SMSI under reaction conditions represents a key step for practical catalytic applications.

show abstract

Tuning Adsorbate‐Mediated Strong Metal‐Support Interaction by Oxygen Vacancy: A Case Study in Ru/TiO₂

Li,

Zhang,

An

et al. 2024

Angew Chem Int Ed

5

0

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The adsorbate‐mediated strong metal‐support interaction (A‐SMSI) offers a reversible means of altering the selectivity of supported metal catalysts, thereby providing a powerful tool for facile modulation of catalytic performance. However, the fundamental understanding of A‐SMSI remains inadequate and methods for tuning A‐SMSI are still in their nascent stages, impeding its stabilization under reaction conditions. Here, we report that the initial concentration of oxygen vacancy in oxide supports plays a key role in tuning the A‐SMSI between Ru nanoparticles and defected titania (TiO2‐x). Based on this new understanding, we demonstrate the in‐situ formation of A‐SMSI under reaction conditions, obviating the typically required CO2‐rich pretreatment. The as‐formed A‐SMSI layer exhibits remarkable stability at various temperatures, enabling excellent activity, selectivity and long‐term stability in catalyzing the reverse water gas‐shift reaction. This study deepens the understanding of the A‐SMSI and the ability to stabilize A‐SMSI under reaction conditions represents a key step for practical catalytic applications.

show abstract

Boosted photothermal synergistic CO2 methanation over Ru doped Ni/ZrO2 catalyst: From experimental to DFT studies

Cited by 14 publications

References 53 publications

Hollow spherical Ni/ZrO₂ as a superior catalyst for syngas production from photothermal synergistic dry reforming of methane

Hollow spherical Ni/ZrO₂ as a superior catalyst for syngas production from photothermal synergistic dry reforming of methane

Tuning Adsorbate‐Mediated Strong Metal‐Support Interaction by Oxygen Vacancy: A Case Study in Ru/TiO₂

Tuning Adsorbate‐Mediated Strong Metal‐Support Interaction by Oxygen Vacancy: A Case Study in Ru/TiO₂

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Boosted photothermal synergistic CO2 methanation over Ru doped Ni/ZrO2 catalyst: From experimental to DFT studies

Cited by 14 publications

References 53 publications

Hollow spherical Ni/ZrO2 as a superior catalyst for syngas production from photothermal synergistic dry reforming of methane

Hollow spherical Ni/ZrO2 as a superior catalyst for syngas production from photothermal synergistic dry reforming of methane

Tuning Adsorbate‐Mediated Strong Metal‐Support Interaction by Oxygen Vacancy: A Case Study in Ru/TiO2

Tuning Adsorbate‐Mediated Strong Metal‐Support Interaction by Oxygen Vacancy: A Case Study in Ru/TiO2

Contact Info

Product

Resources

About

Hollow spherical Ni/ZrO₂ as a superior catalyst for syngas production from photothermal synergistic dry reforming of methane

Hollow spherical Ni/ZrO₂ as a superior catalyst for syngas production from photothermal synergistic dry reforming of methane

Tuning Adsorbate‐Mediated Strong Metal‐Support Interaction by Oxygen Vacancy: A Case Study in Ru/TiO₂

Tuning Adsorbate‐Mediated Strong Metal‐Support Interaction by Oxygen Vacancy: A Case Study in Ru/TiO₂