Selective Hydrogenation of Cinnamaldehyde on Pt and Pt-Fe Catalysts Supported on Zeolite P

Neri, G.; Arrigo, I.; Corigliano, F.; Luca, Lidia De; Donato, Andrea

doi:10.1007/s10562-011-0688-x

Cited by 18 publications

(7 citation statements)

References 32 publications

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“…(b) Bimetallic effect on the activity and selectivity ((▲) CAL and (■)) CRAL). Data have been obtained from refs , , , , , , , and.…”

Section: Selective Hydrogenation Of Ual To Uolmentioning

confidence: 99%

“…10 Yang et al 165 prepared CoIn 3 and CoGa 3 intermetallic compounds from LDH precursors and the electropositive (Ga or In) active sites facilitated the activation of CO. The metal molar ratio showed a significant effect on the bimetallic catalysts and was optimized over the PtCo, 163 PtFe, 107,164 and AuAg 18 catalysts. A small addition of a second metal would effectively increase the selectivity and activity, while a negative effect occurred with further increases of a second metal.…”

Section: T H I S C O N T E N T Imentioning

confidence: 99%

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Highly Selective Catalysts for the Hydrogenation of Unsaturated Aldehydes: A Review

2020

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The selective hydrogenation of unsaturated aldehydes (UAL) to saturated aldehydes (SAL) and unsaturated alcohols (UOL) is an important industrial process for producing fine chemicals. More efforts were made on the selective hydrogenation of CO to UOL, because CC hydrogenation is thermodynamically favored over CO hydrogenation. A crucial step toward high selectivity is the rational design of heterogeneous catalysts. In this Review, the catalyst design for the hydrogenation of UAL to UOL are catalogued into three major strategies, namely, modifying electronic properties, forming electrophilic sites, and involving confinement/steric effect. Research works accomplished in the past decade on the catalyst design for UAL hydrogenation are systematically reviewed using the above strategies. The focus is on the selectivity-enhancing mechanism, methods to perform the chosen strategy, and the factors that influence the mechanism. Density functional theory calculations and catalyst stability are discussed to appreciate the challenges in designing catalysts. In addition, recent advances in the selective hydrogenation of CC of cinnamaldehyde to hydrocinnamaldehyde are briefly reviewed.

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“…(b) Bimetallic effect on the activity and selectivity ((▲) CAL and (■)) CRAL). Data have been obtained from refs , , , , , , , and.…”

Section: Selective Hydrogenation Of Ual To Uolmentioning

confidence: 99%

Section: T H I S C O N T E N T Imentioning

confidence: 99%

Highly Selective Catalysts for the Hydrogenation of Unsaturated Aldehydes: A Review

2020

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“…Moreover, new types of carbon‐based porous materials supported platinum‐based catalysts have a higher selectivity to cinnamyl alcohol, up to 91.1 %, such as carbonized aerosols (S col = 53 %), CNTs (S col = 64 %), graphite (S col = 72 %), rice husk mesoporous carbon (S col = 88 %), graphene oxide (S col = 88 %), and three‐dimensional layered porous carbon (S col = 91.1 %) . On the other hand, platinum‐based catalysts doped with other metals, such as Fe (S col = 85 %, 90 %), Fe 3 O 4 (S col = 94.9 %), Sn (S col = 78 %), and Co (S col = 87.9 %), can also significantly improve the selectivity to cinnamyl alcohol, however, Ni (S col = 8 %, 27.4 %) is an exception.…”

Section: Introductionmentioning

confidence: 99%

Precious metal nanoparticles supported on KOH pretreated activated carbon under microwave radiation as a catalyst for selective hydrogenation of cinnamaldehyde

et al. 2019

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A series of precious metals (Pd, Pt, Ru, Rh, and Au) supported on commercial activated carbon (AC) catalysts were prepared and their catalytic performance in the selective hydrogenation of cinnamaldehyde (CAL) were evaluated. Among these catalysts, Pt supported on AC pretreated by 10 % KOH under microwave radiation has the highest catalytic activity and selectivity in the selective hydrogenation of CAL, which provided a selectivity to cinnamyl alcohol of 73.4 % with a conversion of CAL of 62.8 %. The structure and morphology of the AC and the precious metal supported catalysts were characterized by BET, FT‐IR, XPS, XRD, and TEM. The catalytic performances of various precious metals as active components were compared. The effects of reaction temperature, hydrogen pressure, and reaction time on the catalytic hydrogenation of CAL were investigated. The by‐products were analyzed by GC‐MS and their formation mechanism was proposed. This work provides an efficient method of using commercial AC as the support for preparing promising catalysts in the selective hydrogenation of CAL.

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“…[6] For this purpose, different approaches have been reported with the aim to increase the conversion and selectivity towards a specific product, which significantly varies with the reaction conditions, solvent, support, catalyst preparation methods, as well as the nature of the metallic phase used. [7][8][9] It has been reported that the use of metals such as Pd, Rh, Cu, Mo usually promote the selective hydrogenation of the C═C double bond, whereas Pt, Ir, Ru, Co and some bimetallic catalysts are more selective towards the hydrogenation of the C═O double bond conjugated in these kind of a,b-unsaturated aldehydes and ketones. [5,[10][11][12] Furthermore, different supports have been used for the selective hydrogenation of cinnamaldehyde, among them: Al 2 O 3 , Zeolites, Nb 2 O 5 , CeO 2 , SiO 2 , TiO 2 , graphite, mesoporous materials, layered double hydroxides, etc.…”

Section: Introductionmentioning

confidence: 99%

Selective hydrogenation of cinnamaldehyde using Pd catalysts supported on Mg/Al mixed oxides: Influence of the Pd incorporation method

et al. 2017

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A series of hydrotalcite-like compounds was synthesized by varying Mg/Al molar ratio with values of 2, 3, and 4. After thermal treatment at 823 K, the corresponding mixed oxides were obtained and used as catalytic supports. The incorporation of a Pd metallic phase (0.5 g/g loading), was carried out by two methods: 1) in situ vapour phase thermal decomposition, and 2) impregnation by organic method. Fresh and calcined samples were characterized by XRD and N 2 sorption experiments. The basic and metal functions were analyzed by CO 2 -TPD and H 2 -TPR. The Pd-support interaction was studied by FTIR spectroscopy using CO as a probe molecule while the morphology of Pd nanoparticles on the catalysts was studied by SEM, HRTEM, and theoretical simulation using the Fast Fourier Transform (FFT) method. Finally, the catalytic activity results showed a higher conversion towards hydrocinnamaldehyde in the cinnamaldehyde hydrogenation reaction for the catalysts prepared by vapour phase thermal decomposition, compared with those prepared by organic method, showing the significant dependence on the catalytic activity and the Pd incorporation method.

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Selective Hydrogenation of Cinnamaldehyde on Pt and Pt-Fe Catalysts Supported on Zeolite P

Cited by 18 publications

References 32 publications

Highly Selective Catalysts for the Hydrogenation of Unsaturated Aldehydes: A Review

Highly Selective Catalysts for the Hydrogenation of Unsaturated Aldehydes: A Review

Precious metal nanoparticles supported on KOH pretreated activated carbon under microwave radiation as a catalyst for selective hydrogenation of cinnamaldehyde

Selective hydrogenation of cinnamaldehyde using Pd catalysts supported on Mg/Al mixed oxides: Influence of the Pd incorporation method

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