Magnetic CuNi Alloy Nanoparticles for Catalytic Transfer Hydrogenation of Nitroarene

Shi, Hang; Dai, Xiaofeng; Liu, Qing; Zhang, Teng; Zhang, Yabing; Shi, Yuling; Wang, Tao

doi:10.1021/acs.iecr.1c03175

Cited by 25 publications

(12 citation statements)

References 42 publications

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“…In addition, the catalyst exhibited good catalytic activity even after six cycles (Figure 24c). In 2021, Shi et al 189 developed CuNi alloy for the similar application using ethylene glycol as a hydrogen source and KOH as a base at 130 °C for 30 min with 99% conversion and >97% yield. The catalyst was synthesized through a single-step thermal decomposition process involving copper formate (CuF) and nickel formate (NiF) with paraffin serving as the solvent.…”

Section: 7mentioning

confidence: 99%

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Nanoarchitectonics of Non-Noble-Metal-Based Heterogeneous Catalysts for Transfer Hydrogenation Reactions: Detailed Insights on Different Hydrogen Sources

Sharma,

Choudhary,

Mittal

et al. 2024

ACS Catal.

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Catalytic transfer hydrogenation (CTH) methodology has drawn profound attention of researchers as an economical and environmentally benign alternate to conventional hydrogenation method. Unlike conventional method, CTH exhibits better reaction efficiency and atom economy, and it makes use of simple, easily accessible, low-cost hydrogen sources. Current research on CTH reactions is oriented toward the development of non-noble-metal-based catalysts due to their high abundance and potential large-scale applicability. In this Review, different organic transformation reactions, such as hydrogenation of nitroarenes, nitriles, alkenes, alkynes, and carbonyl compounds, hydrogenolysis, reductive amination, and reductive formylation reaction using different hydrogen sources have been summarized comprehensively. In addition, synthesis strategies of the non-noble-metal-based heterogeneous catalysts and the structure−activity relationship involving metal−support interaction, single-atom catalysis, and synergistic effect are highlighted. Furthermore, the optimization of the reaction parameters�such as temperature, time, solvents, and additives�for enhancing the catalytic activity and selectivity of the product are discussed in detail. This Review provides detailed insights into the recent progress made in CTH reactions using non-noble-metal-based heterogeneous catalysts with a specific focus on catalyst development, hydrogen sources, and mechanistic exploration.

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Section: 7mentioning

confidence: 99%

Section: Various Hydrogen Sources For Cth Reactionsmentioning

confidence: 99%

Nanoarchitectonics of Non-Noble-Metal-Based Heterogeneous Catalysts for Transfer Hydrogenation Reactions: Detailed Insights on Different Hydrogen Sources

Sharma,

Choudhary,

Mittal

et al. 2024

ACS Catal.

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“…It is interesting to note that the recyclability of 5 wt % Pt/C is pretty good according to three recycle experiments and the nitrobenzene conversions show a negligible loss of ∼1%. Some new strategies for the preparation of more stable nonprecious metal catalysts such as carbon encapsulation and alloying technology, 37,48,50 which can be employed in the following study. Ni/CB (from 6.8 to 7.3 nm).…”

Section: Recyclability Of Ni-based Andmentioning

confidence: 99%

Effects of Support Types and Their Porosity Characteristics on the Catalytic Performance of Ni-Based Catalysts in Nitrobenzene Hydrogenation to Aniline

Jiang,

Yuan,

Cui

et al. 2023

Ind. Eng. Chem. Res.

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Ni-based catalysts are increasingly being used in nitrobenzene hydrogenation. How to select suitable catalyst supports is crucial for upgrading the catalytic performance. Herein, three Ni-based catalysts supported on activated carbon fiber (ACF), mesoporous carbon black (CB), and γ-Al2O3 were tested for nitrobenzene hydrogenation. The influence of catalyst supports, their porosity characteristics, and reaction conditions on the catalytic performance was investigated. The results show that 10 wt % Ni/CB catalyst owns an ultrafine active Ni nanoparticles (∼10 nm) with a uniform dispersion and thus exhibits the optimal catalytic activity. The conversion of nitrobenzene and the selectivity to aniline could reach nearly 100% at 120 °C for 1 h. By contrast, it takes 2 h to achieve the same conversion for 10 wt % Ni/ACF at 120 °C, whereas 10 wt % Ni/Al2O3 needs a severe reaction at 150 °C for 2 h. The turnover frequency of 10 wt % Ni/CB approaches 38 h–1, which is higher than those of other catalysts. Nitrobenzene hydrogenation over different catalysts conforms to a first-order reaction, and the apparent activation energy of 10 wt % Ni/CB (42.6 kJ/mol) is significantly lower than that of 10 wt % Ni/Al2O3 (66.0 kJ/mol). Moreover, 10 wt % Ni/CB catalyst exhibits a good recyclability and structural stability owing to the existence of abundant mesopores in CB, in comparison with 10 wt % Ni/ACF and Ni/Al2O3. It is the mesopores rather than the micropores in carbon supports to postpone the deactivation of Ni-based catalysts. This work demonstrates the superiority of porous carbons as catalyst supports over Al2O3 in nitrobenzene hydrogenation.

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“…Due to the synergistic effect between the active metal and the second metal, enhanced hydrogenation performance is achieved. For example, CuNi alloy nanoparticles (NPs) exhibited good performance for catalytic transfer hydrogenation of nitroarene using ethylene glycol as the hydrogen donor, 32 while ceria-supported NiCo alloy catalysts derived from the metal-organic framework 33 demonstrated an aniline yield of 87.9% under 150 °C and 2 MPa of H 2 . NiCu/C@SiO 2 -800 34 catalysts could smoothly transform various substituted nitroaromatics to the corresponding aromatic amines at 120 °C and 2.0 MPa of H 2 , and CoN x -Co y Zn s @NPC catalysts 35 achieved high activity and selectivity, affording almost complete conversions and >98% selectivity in water/methanol mixed solvents.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Mesoporous Silica-Supported NiCo Bimetallic Nanocatalysts and Their Enhanced Catalytic Hydrogenation Performance

Wang

et al. 2023

ACS Omega

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In this work, mesoporous silica SBA-16-supported NiCo bimetallic nanocatalysts were synthesized by coimpregnation of Ni and Co precursors followed by calcination and reduction, and various characterization techniques confirm the formation of NiCo bimetallic nanostructures in the catalysts. The synthesized NiCo/SBA-16 shows enhanced catalytic performance for hydrogenation of a series of nitroaromatics. Under the reaction conditions of 80 °C and 1.0 MPa of H2, the yields of aniline for nitrobenzene hydrogenation over NiCo0.3/SBA-16 can reach more than 99% at 2.0 h. The enhanced catalytic performance can be ascribed to the formation of NiCo bimetallic nanostructures, where the synergistic effect between Ni and Co improves their catalytic activities for hydrogenation of nitroaromatics.

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Magnetic CuNi Alloy Nanoparticles for Catalytic Transfer Hydrogenation of Nitroarene

Cited by 25 publications

References 42 publications

Nanoarchitectonics of Non-Noble-Metal-Based Heterogeneous Catalysts for Transfer Hydrogenation Reactions: Detailed Insights on Different Hydrogen Sources

Nanoarchitectonics of Non-Noble-Metal-Based Heterogeneous Catalysts for Transfer Hydrogenation Reactions: Detailed Insights on Different Hydrogen Sources

Effects of Support Types and Their Porosity Characteristics on the Catalytic Performance of Ni-Based Catalysts in Nitrobenzene Hydrogenation to Aniline

Synthesis of Mesoporous Silica-Supported NiCo Bimetallic Nanocatalysts and Their Enhanced Catalytic Hydrogenation Performance

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