Quenching method to prepare ultra-low loading high-entropy catalyst for furfural selectively hydrogenation at ambient temperature

Xu, Xiwei; Yang, Hui; Tu, Ren; Liu, Shuhong; Hu, Jingye; Li, Yingnan; Sun, Yan

doi:10.1016/j.apcatb.2023.123358

Applied Catalysis B: Environmental

2024

DOI: 10.1016/j.apcatb.2023.123358

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Quenching method to prepare ultra-low loading high-entropy catalyst for furfural selectively hydrogenation at ambient temperature

Xiwei Xu,

Hui Yang,

Ren Tu

et al.

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2024

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Cited by 9 publications

References 54 publications

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Electronegativity Induced d‐Band Center Offset for Pt‐Rh Dual Sites in High‐Entropy Alloy Boosts Liquid Fuels Electrooxidation

Lv,

Lin,

Xue

et al. 2024

Advanced Energy Materials

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Investigating the catalytic behavior of the liquid fuels on well‐defined dual sites is crucial in understanding electrocatalytic reactions. Herein, concept holding bidirectional electronegativity dominant d‐band center regulation on Pt‐Rh dual sites is proposed to tailor the catalytic behaviors toward methanol oxidation reaction (MOR). The Pt‐Rh dual sites are engineered by introducing the low‐electronegativity Ga/Ni and high‐electronegativity W elements in PtRhGaNiW high‐entropy alloy (HEA), which can drive the electron cloud of Pt‐Rh dual sites redispersing over a wide orbit window. The optimized Pt‐Rh dual sites in PtRhGaNiW HEA nanowire achieve a high current density of 5.61 mA cm−2 toward MOR, which is 3.38 and 9.75 times than that of PtRh alloy (1.66 mA cm−2) and Pt/C (0.57 mA cm−2), as well as remarkably stability and COads poisonous resistance. The theoretical calculations further disclose that the redistribution of surface localized electron around Pt‐Rh dual sites can promote direct oxidation of ─OH, and accelerate the COads oxidation/removal. This work presents a breakthrough in designing advanced dual site electrocatalysts for complex catalytic reactions.

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Electronegativity Induced d‐Band Center Offset for Pt‐Rh Dual Sites in High‐Entropy Alloy Boosts Liquid Fuels Electrooxidation

Lv,

Lin,

Xue

et al. 2024

Advanced Energy Materials

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Nanoporous High Entropy Alloy Al‐Pt‐Pd‐Ru as an Efficient Catalyst for One‐Pot Reductive Amination of Nitroarenes

Wang,

et al. 2024

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High entropy alloys (HEAs) are promising heterocatalysts because of their unique physicochemical properties, but research on HEA‐catalyzed tandem reactions is lacking. Moreover, limited research on HEAs for molecular transformation has hindered their development. Herein, an unsupported nanoporous HEA Al‐Pt‐Pd‐Ru (HEANPore) prepared using a top‐down dealloying method is reported. The Lewis acidity and electron redistribution of the noble metals Pt, Pd, and Ru are identified to be intrinsic of high activity and selectivity of HEANPore in the one‐pot reductive amination of nitroarenes. The competitive adsorption of the reactant and corresponding reaction mechanism are investigated using DFT. This study demonstrates the exceptional performance of the HEANPore in tandem reactions, presenting new possibilities for the application of HEAs in the field of catalysis.

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Quenching-induced oxygen vacancy engineering boosts photocatalytic activities of CaTiO3

Li,

Wu,

Zhong

et al. 2024

Applied Surface Science

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Quenching method to prepare ultra-low loading high-entropy catalyst for furfural selectively hydrogenation at ambient temperature

Cited by 9 publications

References 54 publications

Electronegativity Induced d‐Band Center Offset for Pt‐Rh Dual Sites in High‐Entropy Alloy Boosts Liquid Fuels Electrooxidation

Electronegativity Induced d‐Band Center Offset for Pt‐Rh Dual Sites in High‐Entropy Alloy Boosts Liquid Fuels Electrooxidation

Nanoporous High Entropy Alloy Al‐Pt‐Pd‐Ru as an Efficient Catalyst for One‐Pot Reductive Amination of Nitroarenes

Quenching-induced oxygen vacancy engineering boosts photocatalytic activities of CaTiO3

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