Anti‐Sintering Ni‐W Catalytic Layer on Reductive Tungsten Carbides for Superior High‐Temperature CO2 Reduction DOI

Daoping Ye,

Zihe Wu, Ting Wang

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 30, 2025

Abstract The reverse water‐gas shift (RWGS) reaction stands out as a promising approach for selectively converting CO 2 into CO, which can then be upgraded high‐value‐added products. While designing high selectivity and stability catalysts RWGS remains significant challenge. In this study, an efficient ultra‐stable Ni‐W catalytic layer on reductive WC (Ni A WC) is designed anti‐sintering catalyst superior high‐temperature reaction. Benefiting from the unique structures, Ni exhibits exceptionally performances with production rate of 1.84 mol g −1 h over 95% selectivity, maintaining 120 at 500 °C. Even after 300 continuous testing 600 °C five aging cycles 800 °C, activity loss only 0.34% 0.83%, respectively. Unlike conventional mechanism in reaction, it demonstrated that limited coordination stabilize sites allow pre‐oxidation δ+ by produces O* electronic reservoir hinders charge transfer to W‐O, thereby avoiding dissolution atoms. design new, efficient, selective through metal‐substrate synergistic effects suggested offer path engineering thermal catalysts.

Язык: Английский

Anti‐Sintering Ni‐W Catalytic Layer on Reductive Tungsten Carbides for Superior High‐Temperature CO2 Reduction DOI

Daoping Ye,

Zihe Wu, Ting Wang

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 30, 2025

Abstract The reverse water‐gas shift (RWGS) reaction stands out as a promising approach for selectively converting CO 2 into CO, which can then be upgraded high‐value‐added products. While designing high selectivity and stability catalysts RWGS remains significant challenge. In this study, an efficient ultra‐stable Ni‐W catalytic layer on reductive WC (Ni A WC) is designed anti‐sintering catalyst superior high‐temperature reaction. Benefiting from the unique structures, Ni exhibits exceptionally performances with production rate of 1.84 mol g −1 h over 95% selectivity, maintaining 120 at 500 °C. Even after 300 continuous testing 600 °C five aging cycles 800 °C, activity loss only 0.34% 0.83%, respectively. Unlike conventional mechanism in reaction, it demonstrated that limited coordination stabilize sites allow pre‐oxidation δ+ by produces O* electronic reservoir hinders charge transfer to W‐O, thereby avoiding dissolution atoms. design new, efficient, selective through metal‐substrate synergistic effects suggested offer path engineering thermal catalysts.

Язык: Английский

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