Improved chemoselective hydrogenation of crotonaldehyde over bimetallic AuAg/SBA-15 catalyst

Lin, Haiqiang; Zheng, Jianwei; Zheng, Xin; Gu, Zhengqiang; Yuan, Youzhu; Yang, Yanhui

doi:10.1016/j.jcat.2015.07.022

Cited by 52 publications

(53 citation statements)

References 53 publications

(78 reference statements)

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“…The SAC exhibits a high efficiency with the average TOF of 1216 h -1 for crotonaldehyde hydrogenation (Table S5). This is the best performance reported for crotonaldehyde hydrogenation via heterogeneous catalysis under identical conditions and is comparable with most values gained using organic complexes [53][54][55]. Similar to quinoline hydrogenation, crotonaldehyde conversion using Pt NPs leads to less efficiencies (Table S5).…”

Section: Resultssupporting

confidence: 68%

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One-Step High-Temperature-Synthesized Single-Atom Platinum Catalyst for Efficient Selective Hydrogenation

Yuan

et al. 2020

Research

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Although single-atom catalysts significantly improve the atom utilization efficiency, the multistep preparation procedures are complicated and difficult to control. Herein, we demonstrate that one-step in situ synthesis of the single-atom Pt anchored in single-crystal MoC (Pt1/MoC) by using facile and controllable arc-discharge strategy under extreme conditions. The high temperature (up to 4000°C) provides the sufficient energy for atom dispersion and overall stability by forming thermodynamically favourable metal-support interactions. The high-temperature-stabilized Pt1/MoC exhibits outstanding performance and excellent thermal stability as durable catalyst for selective quinoline hydrogenation. The initial turnover frequency of 3710 h-1 is greater than those of previously reported samples by an order of magnitude under 2 MPa H2 at 100°C. The catalyst also shows broad scope activity toward hydrogenation containing unsaturated groups of C=C, C=N, and C=O. The facile, one-step, and fast arc-discharge method provides an effective avenue for single-atom catalyst fabrication that is conventionally challenging.

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Section: Resultssupporting

confidence: 68%

“…Pt 1 /MoC was further examined for selective hydrogenation of α,β-unsaturated aldehyde involving C=C and C=O groups [39,[53][54][55][56][57]. The SAC exhibits a high efficiency with the average TOF of 1216 h -1 for crotonaldehyde hydrogenation (Table S5).…”

Section: Resultsmentioning

confidence: 99%

One-Step High-Temperature-Synthesized Single-Atom Platinum Catalyst for Efficient Selective Hydrogenation

Yuan

et al. 2020

Research

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“…Again, after washing and drying, the solid was calcined at 500˝C to remove APTES then reduced at 550˝C in H 2 , leading to small bimetallic particles in the porosity. This method was reused by several authors for the preparation of Au-Ag in mesoporous materials [123][124][125][126].…”

Section: Embedding After Matrix Synthesismentioning

confidence: 99%

Chemical Preparation of Supported Bimetallic Catalysts. Gold-Based Bimetallic, a Case Study

Louis

2016

Catalysts

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This review focuses on the chemical methods used to prepare supported bimetallic heterogeneous catalysts, i.e., bimetallic nanoparticles deposited on a support. The review is limited to the preparation of gold-based bimetallic catalysts and moreover to bimetallic nanoparticles supported on powder inorganic supports, i.e., on the surface or in the porosity, and not on model supports such as single crystals.

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“…Hydrogenation reactions are one of the most important reactions for preparation of many fine chemicals and important intermediates [1][2][3][4][5]. The selectivity and activity of such reactions are an issue of most recent researches [1,2].…”

Section: Introductionmentioning

confidence: 99%

“…Many others researches also used many combinations of bimetallic systems in order to enhance the selectivity and activity [4][5][6][7][8]. Searching the literature data, only few papers deal with the trimetallic system.…”

Section: Introductionmentioning

confidence: 99%

A Simulation Study for Trimetallic Nanosized Alloy (Ni, Cu, and Ag) in Hydrogenation of Organic Compounds: A Case Study of “Nitrophenols”

Bawaked

Maksod

Alshehri

2017

Journal of Nanomaterials

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Trimetallic system (Ni, Cu, and Ag) supported on alumina was utilized for hydrogenation of nitrophenols. The catalytic active centers for hydrogenation were attributed only to the presence of Ni. However, the presence of bi- or trimetallic systems improves the catalytic activity via extra synergism. The catalytic activity was measured as the time for reaching 100% conversion. The function of synergism was fitted for both bimetallic systems (Ni:Ag; Ni:Cu) individually. Subsequently, three-dimensional function was fitted for trimetallic system (Ni:Cu:Ag) based on the linear combination of data for individual bimetallic system. After a complex calculation areal function was evaluated. An Excel program was written to simply evaluate the catalytic activity of trimetallic system with high accuracy. Characterization of catalysts was performed using EPR and pulsed chemisorption by hydrogen. These characterizations of samples enable us to evaluate particle size, metallic surface area, and degree of dispersion. These values were successfully correlated with the synergism function. The program written then could be capable of predicting these values for any trimetallic system.

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Improved chemoselective hydrogenation of crotonaldehyde over bimetallic AuAg/SBA-15 catalyst

Cited by 52 publications

References 53 publications

One-Step High-Temperature-Synthesized Single-Atom Platinum Catalyst for Efficient Selective Hydrogenation

One-Step High-Temperature-Synthesized Single-Atom Platinum Catalyst for Efficient Selective Hydrogenation

Chemical Preparation of Supported Bimetallic Catalysts. Gold-Based Bimetallic, a Case Study

A Simulation Study for Trimetallic Nanosized Alloy (Ni, Cu, and Ag) in Hydrogenation of Organic Compounds: A Case Study of “Nitrophenols”

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