Pt/Ga2O3 catalysts of selective hydrogenation of crotonaldehyde

Gebauer-Henke, Ewa; Grams, Jacek; Szubiakiewicz, E.; Farbotko, J. M.; Touroude, R.; Rynkowski, Jacek

doi:10.1016/j.jcat.2007.06.021

Cited by 60 publications

(33 citation statements)

References 51 publications

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“…Table S2 presents the comparison of TOF and E a values of some reported catalysts for CRAL or acrolein hydrogenation. Although lower than that of an excellent Pt-based catalyst, Pt/Ga 2 O 3 [49], the TOF value of the best 8Au0.5Ag/SBA-15 catalyst in this study is almost in the same level as an outstanding Au-based catalyst, AuAIn/ZnO [21], for acrolein hydrogenation with comparable unsaturated alcohol selectivity. The difference in TOF values of various catalysts originates from not only the intrinsic difference of catalysts, but also the unavoidable differences in experimental conditions and other parameters.…”

Section: Physicochemical Features Of Bimetallic and Monometallic Catamentioning

confidence: 53%

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

Lin

Zheng

et al. 2015

Journal of Catalysis

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Section: Physicochemical Features Of Bimetallic and Monometallic Catamentioning

confidence: 53%

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

Lin

Zheng

et al. 2015

Journal of Catalysis

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“…activating metal atoms (such as Pt in the case of Ga 52 Pt/ SiO 2 ). [9b, 13,14] The dehydrogenation activity of gallium oxide is accompanied by a significant tendency to promote by-product formation, via cracking and/or isomerization reactions. Similar results have been previously observed for the dehydrogenation of propane.…”

mentioning

confidence: 99%

Stable and Selective Dehydrogenation of Methylcyclohexane using Supported Catalytically Active Liquid Metal Solutions – Ga₅₂Pt/SiO₂ SCALMS

et al. 2020

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The use of gallium-rich, Supported Catalytically Active Liquid Metal Solution (SCALMS) is a promising new concept to achieve catalysis with atomically dispersed active metal atoms. Expanding our previous work on short alkane dehydrogenation, we present here the application of SCALMS for the dehydrogenation of methylcyclohexane (MCH) to toluene (TOL) using a Ga 52 Pt alloy (liquid under reaction conditions) supported on silica. Cycloalkane dehydrogenation catalysis has attracted great attention recently in the context of hydrogen storage concepts using liquid organic hydrogen carrier (LOHC) systems. The system under investigation showed high activity and stable conversion of MCH at 450°C and atmospheric pressure for more than 75 h time-on-stream (X MCH = 15 %) with stable toluene selectivity (S TOL) of 85 %. Compared to commercially available Pt/SiO 2 , the SCALMS system resulted in higher yields and robustness. Baseline experiments with Pt-free Ga/SiO 2 under identical conditions revealed the decisive influence of Pt dissolved in the liquid Ga matrix.

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“…Modified Pt catalysts and supported Pt-catalysts have long been developed, and modifiers such as Sn and Zn species for Pt/SiO2 are effective for the reaction 101), 106) . CeO2, SnO2, ZnO and Ga2O3 supports are also effective 102) 105), 107) . Particularly, Touroude and co-workers found that Pt/ZnO catalyst gave high yield of crotyl alcohol (60 %), and reported that the formation of PtZn alloy and Lewis acidity of ZnO after reduction were key for the high selectivity 105) .…”

Section: Selective Hydrogenation Of Unsaturatedmentioning

confidence: 99%

Recent Developments of Heterogeneous Catalysts for Selective Hydrogenation of Unsaturated Carbonyl Compounds to Unsaturated Alcohols

Tamura

Nakagawa

Tomishige

2019

J. Jpn. Petrol. Inst.

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Development of heterogeneous catalysts which can achieve both high activity and high selectivity requires establishment of sophisticated and uniform active sites on the surface of solid materials, but formation of uniform active sites is difficult in heterogeneous catalysts because of the nonuniformity of heterogeneous catalysts. Selective hydrogenation of the carbonyl group of unsaturated carbonyl compounds is particularly difficult because hydrogenation of the olefin group is thermodynamically and kinetically preferable to that of the carbonyl groups. Therefore, various heterogeneous catalyst systems have been developed to achieve high selectivity. Recently developed effective heterogeneous catalysts for the selective hydrogenation of unsaturated carbonyl compounds such as unsaturated aldehydes and unsaturated ketones to the corresponding unsaturated alcohols using H2 as a reducing agent are reviewed. Model reactions include liquid-phase selective hydrogenation of crotonaldehyde and liquid-phase selective hydrogenation of benzylideneacetone using a batch reactor, and gas-phase selective hydrogenation of crotonaldehyde with a fixed-bed reactor. Particularly, this review mainly covers metal oxide-or metal cation-modified noble metal catalysts.

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Pt/Ga2O3 catalysts of selective hydrogenation of crotonaldehyde

Cited by 60 publications

References 51 publications

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

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

Stable and Selective Dehydrogenation of Methylcyclohexane using Supported Catalytically Active Liquid Metal Solutions – Ga₅₂Pt/SiO₂ SCALMS

Recent Developments of Heterogeneous Catalysts for Selective Hydrogenation of Unsaturated Carbonyl Compounds to Unsaturated Alcohols

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Pt/Ga2O3 catalysts of selective hydrogenation of crotonaldehyde

Cited by 60 publications

References 51 publications

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

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

Stable and Selective Dehydrogenation of Methylcyclohexane using Supported Catalytically Active Liquid Metal Solutions – Ga52Pt/SiO2 SCALMS

Recent Developments of Heterogeneous Catalysts for Selective Hydrogenation of Unsaturated Carbonyl Compounds to Unsaturated Alcohols

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Stable and Selective Dehydrogenation of Methylcyclohexane using Supported Catalytically Active Liquid Metal Solutions – Ga₅₂Pt/SiO₂ SCALMS