Graphene Chainmail Shelled Dilute Ni─Cu Alloy for Selective and Robust Aqueous Phase Catalytic Hydrogenation

Yuan, Haifeng; Hong, Mei; Huang, Xianzhen; Qiu, Weitao; Dong, Feng; Zhou, Yu; Chen, Yanpeng; Gao, Jinqiang; Yang, Shihe

doi:10.1002/advs.202304349

Cited by 3 publications

(1 citation statement)

References 71 publications

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“…Yuan et al reported the first CuNi x @OC of a graphylene shell-diluted Ni-Cu alloy catalyst, demonstrating not only controlled shell thickness and metal-support interactions but also synergistic bimetallic alloy effect. 36 The CuNi 0.05 @OC catalyst exhibited excellent performance in the atmospheric pressure transfer hydrogenation of p-chloronitrobenzene and p-nitrophenol, as well as in the hydrogenation of furfural. Theoretical calculations show that properly tuned lattice strains and Schottky junctions can modulate electron density and promote specific adsorption of active centers, thereby enhancing catalytic activity and selectivity.…”

Section: Alloys and Strain Effectsmentioning

confidence: 98%

Copper‐based nanocatalysts toward chemoselective hydrogenation reaction

Guo,

Pei,

Xie

et al. 2024

cMat

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Cu‐based catalysts are widely used in various heterogeneous catalytic reaction systems, the precise control of their electronic structure is an intrinsic requirement for the rational design of metal catalysts, and it is also an important basis for clarifying their structure‐activity relationships. Changing the electronic structure of Cu‐based catalysts is an important way to improve the catalytic hydrogenation performance of Cu‐based catalysts by controlling the adsorption intensity between the reaction adsorbate and the active center. In this paper, the application of selective hydrogenation of Cu‐based catalysts is reviewed, with a special emphasis on the selective catalytic hydrogenation reduction of p‐nitrostyrene and CO2. This review particularly emphasizes the application of Cu‐based catalysts in the field of selective hydrogenation and discusses the influence of their different properties on selective hydrogenation performance.

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Section: Alloys and Strain Effectsmentioning

confidence: 98%

Copper‐based nanocatalysts toward chemoselective hydrogenation reaction

Guo,

Pei,

Xie

et al. 2024

cMat

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Toward Functionality and Deactivation of Metal‐Single‐Atom in Heterogeneous Photocatalysts

Cheng,

Wu,

Sun

et al. 2024

Advanced Materials

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Single‐atom heterogeneous catalysts (SAHCs) provide an enticing platform for understanding catalyst structure–property–performance relationships. The 100% atom utilization and adjustable local coordination configurations make it easy to probe reaction mechanisms at the atomic level. However, the progressive deactivation of metal‐single‐atom (MSA) with high surface energy leads to frequent limitations on their commercial viability. This review focuses on the atomistic‐sensitive reactivity and atomistic‐progressive deactivation of MSA to provide a unifying framework for specific functionality and potential deactivation drivers of MSA, thereby bridging function, purpose‐modification structure–performance insights with the atomistic‐progressive deactivation for sustainable structure–property–performance accessibility. The dominant functionalization of atomically precise MSA acting on properties and reactivity encompassing precise photocatalytic reactions is first systematically explored. Afterward, a detailed analysis of various deactivation modes of MSA and strategies to enhance their durability is presented, providing valuable insights into the design of SAHCs with deactivation‐resistant stability. Finally, the remaining challenges and future perspectives of SAHCs toward industrialization, anticipating shedding some light on the next stage of atom‐economic chemical/energy transformations are presented.

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Development of Robust CuNi Bimetallic Catalysts for Selective Hydrogenation of Furfural to Furfuryl Alcohol under Mild Conditions

He,

Liang,

et al. 2024

Catalysts

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Furfuryl alcohol represents a pivotal intermediate in the high-value utilization of renewable furfural, derived from agricultural residues. The industrial-scale hydrogenation of furfural to furfuryl alcohol typically employs Cu-based catalysts, but their limited catalytic activity necessitates high-temperature and high-pressure conditions. Here, we develop robust CuNi bimetallic catalysts through direct calcination of dried sol–gel precursors under H2 atmosphere, enabling the complete conversion of furfural to furfuryl alcohol under mild conditions. By adjusting the calcination atmosphere and introducing small amounts of Ni, we achieve the formation of highly dispersed, ultrasmall Cu nanoparticles, resulting in a significant enhancement of the catalytic activity. The optimized 0.5%Ni-10%Cu/SiO2-CA(H2) catalyst demonstrates superior catalytic performance, achieving 99.4% of furfural conversion and 99.9% of furfuryl alcohol selectivity, respectively, at 55 °C under 2 MPa H2, outperforming previously reported Cu-based catalysts. The excellent performance of CuNi bimetallic catalysts can be attributed to the highly dispersed Cu nanoparticles and the synergistic effect between Cu and Ni for H2 activation. This research contributes to the rational design of Cu-based catalysts for the selective hydrogenation of furfural.

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Graphene Chainmail Shelled Dilute Ni─Cu Alloy for Selective and Robust Aqueous Phase Catalytic Hydrogenation

Cited by 3 publications

References 71 publications

Copper‐based nanocatalysts toward chemoselective hydrogenation reaction

Copper‐based nanocatalysts toward chemoselective hydrogenation reaction

Toward Functionality and Deactivation of Metal‐Single‐Atom in Heterogeneous Photocatalysts

Development of Robust CuNi Bimetallic Catalysts for Selective Hydrogenation of Furfural to Furfuryl Alcohol under Mild Conditions

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