Intramolecular selective hydrogenation of cinnamaldehyde over CeO2–ZrO2-supported Pt catalysts

2012 ◽  
Vol 285 (1) ◽  
pp. 31-40 ◽  
Author(s):  
S. Bhogeswararao ◽  
D. Srinivas
Keyword(s):  
Selective Hydrogenation ◽  
Pt Catalysts ◽  
Supported Pt Catalysts

Selective hydrogenation of cinnamaldehyde to cinnamyl alcohol over BN-supported Pt catalysts at room temperature

2019 ◽  
Vol 578 ◽  
pp. 105-115 ◽  
Author(s):  
Zhang Cao ◽  
Jiahao Bu ◽  
Zeqin Zhong ◽  
Changyong Sun ◽  
Qingsong Zhang ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Room Temperature ◽  
Pt Catalysts ◽  
Cinnamyl Alcohol ◽  
Supported Pt Catalysts

scholarly journals The H2-Treated TiO2 Supported Pt Catalysts Prepared by Strong Electrostatic Adsorption for Liquid-Phase Selective Hydrogenation

Catalysts ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 87 ◽  
Author(s):  
Sasithorn Kuhaudomlap ◽  
Okorn Mekasuwandumrong ◽  
Piyasan Praserthdam ◽  
Shin-Ichiro Fujita ◽  
Masahiko Arai ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Selective Hydrogenation ◽  
Pt Catalysts ◽  
Electrostatic Adsorption ◽  
Strong Electrostatic Adsorption ◽  
Supported Pt Catalysts

The structure and electronic effects of ZIF-8 and ZIF-67 supported Pt catalysts for crotonaldehyde selective hydrogenation

2022 ◽  
Author(s):  
Haiyu Shen ◽  
Huahua Zhao ◽  
Jian Yang ◽  
Jun Zhao ◽  
Liang Yan ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Selective Hydrogenation ◽  
Metal Organic Frameworks ◽  
Pt Catalysts ◽  
Electronic Effects ◽  
Supported Pt Catalysts ◽  
Metal Organic

Metal organic frameworks (MOFs) have been applied to stabilize metal nanoparticles due to their excellent properties, but there are many different viewpoints about the interaction between MOF and nanoparticles, which...

scholarly journals Selective Hydrogenation of Crotonaldehyde over ZrO2-Supported Pt Catalysts

2010 ◽  
Vol 26 (12) ◽  
pp. 3273-3277 ◽  
Author(s):  
ZHENG Hai-Ying ◽  
◽  
XIE Guan-Qun ◽  
WANG Xiao-Xia ◽  
JIN Ling-Yun ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Pt Catalysts ◽  
Supported Pt Catalysts

scholarly journals Effect of Carbon Supported Pt Catalysts on Selective Hydrogenation of Cinnamaldehyde

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Qing Han ◽  
Yunfei Liu ◽  
Dong Wang ◽  
Fulong Yuan ◽  
Xiaoyu Niu ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Impregnation Method ◽  
Pt Catalysts ◽  
Cinnamyl Alcohol ◽  
Electronic Effects ◽  
Carbon Supports ◽  
Graphene Oxides ◽  
Graphitization Degree ◽  
Supported Pt Catalysts ◽  
Reduced Graphene

Selective hydrogenation of cinnamaldehyde (CAL) to cinnamyl alcohol (COL) is of both fundamental and industrial interest. It is of great significance to evaluate the possible differences between different supports arising from metal dispersion and electronic effects, in terms of activity and selectivity. Herein, Pt catalysts on different carbon supports including carbon nanotubes (CNTs) and reduced graphene oxides (RGO) were developed by a simple wet impregnation method. The resultant catalysts were well characterized by XRD, Raman, N2physisorption, TEM, and XPS analysis. Applied in the hydrogenation of cinnamaldehyde, 3.5 wt% Pt/CNT shows much higher selectivity towards cinnamyl alcohol (62%) than 3.5 wt% Pt/RGO@SiO2(48%). The enhanced activity can be ascribed to the high graphitization degree of CNTs and high density of dispersed Pt electron cloud.

Effective conversion of biomass-derived ethyl levulinate into γ-valerolactone over commercial zeolite supported Pt catalysts

RSC Advances ◽  
2016 ◽  
Vol 6 (113) ◽  
pp. 112477-112485 ◽  
Author(s):  
Chu-Bai Chen ◽  
Meng-Yuan Chen ◽  
Bakht Zada ◽  
Ying-Jie Ma ◽  
Long Yan ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Supported Catalysts ◽  
High Yield ◽  
Pt Catalysts ◽  
Ethyl Levulinate ◽  
Supported Pt Catalysts

Selective hydrogenation of biomass-derived ethyl levulinate into γ-valerolactone over commercial zeolite supported catalysts was performed, and high yield was obtained.

scholarly journals Influence of the Reduction Temperature and the Nature of the Support on the Performance of Zirconia and Alumina-Supported Pt Catalysts for n-Dodecane Hydroisomerization

Catalysts ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 88
Author(s):  
Diana García-Pérez ◽  
Maria Consuelo Alvarez-Galvan ◽  
Jose M. Campos-Martin ◽  
Jose L. G. Fierro
Keyword(s):  
Catalytic Activity ◽  
Surface Area ◽  
Catalytic Properties ◽  
Catalytic Performance ◽  
Major Influence ◽  
Pt Catalysts ◽  
Reduction Temperature ◽  
Metal Dispersion ◽  
Tungsten Oxides ◽  
Supported Pt Catalysts

Catalysts based on zirconia- and alumina-supported tungsten oxides (15 wt % W) with a small loading of platinum (0.3 wt % Pt) were selected to study the influence of the reduction temperature and the nature of the support on the hydroisomerization of n-dodecane. The reduction temperature has a major influence on metal dispersion, which impacts the catalytic activity. In addition, alumina and zirconia supports show different catalytic properties (mainly acid site strength and surface area), which play an important role in the conversion. The NH3-TPD profiles indicate that the acidity in alumina-based catalysts is clearly higher than that in their zirconia counterparts; this acidity can be attributed to a stronger interaction of the WOx species with alumina. The PtW/Al catalyst was found to exhibit the best catalytic performance for the hydroisomerization of n-dodecane based on its higher acidity, which was ascribed to its larger surface area relative to that of its zirconia counterparts. The selectivity for different hydrocarbons (C7–10, C11 and i-C12) was very similar for all the catalysts studied, with branched C12 hydrocarbons being the main products obtained (~80%). The temperature of 350 °C was clearly the best reduction temperature for all the catalysts studied in a trickled-bed-mode reactor.

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