scholarly journals Preparation of polycarboxylic acid-functionalized silica supported Pt catalysts and their applications in alkene hydrosilylation

RSC Advances ◽  
2018 ◽  
Vol 8 (36) ◽  
pp. 20379-20393 ◽  
Author(s):  
Dongyun Shao ◽  
Youxin Li
Keyword(s):  
Silica Gel ◽  
Pt Catalysts ◽  
Functionalized Silica ◽  
Polycarboxylic Acid ◽  
Supported Pt Catalysts ◽  
Aminopolycarboxylic Acid

Three novel Pt catalysts were prepared by loading Pt onto aminopolycarboxylic acid functionalized silica gel and were used in alkene hydrosilylation.

Carbon nanotubes-supported Pt catalysts for decalin dehydrogenation to release hydrogen: A comparison between nitrogen- and oxygen-surface modification

2021 ◽  
Vol 46 (1) ◽  
pp. 930-942
Author(s):  
Yongxiao Tuo ◽  
Liu Yang ◽  
Xuefei Ma ◽  
Zhejie Ma ◽  
Shan Gong ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Surface Modification ◽  
Pt Catalysts ◽  
Supported Pt Catalysts ◽  
Oxygen Surface

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.

Effect of Ru surface composition on the CO tolerance of Ru modified carbon supported Pt catalysts

2004 ◽  
Vol 6 (8) ◽  
pp. 1792 ◽  
Author(s):  
E. M. Crabb ◽  
M. K. Ravikumar ◽  
D. Thompsett ◽  
M. Hurford ◽  
A. Rose ◽  
...  
Keyword(s):  
Surface Composition ◽  
Pt Catalysts ◽  
Co Tolerance ◽  
Supported Pt Catalysts

Methanol electro-oxidation on mesocarbon microbead supported Pt catalysts

Carbon ◽  
2002 ◽  
Vol 40 (13) ◽  
pp. 2375-2380 ◽  
Author(s):  
Yi Cheng Liu ◽  
Xin Ping Qiu ◽  
Yu Qing Huang ◽  
Wen Tao Zhu
Keyword(s):  
Pt Catalysts ◽  
Supported Pt Catalysts ◽  
Electro Oxidation

Tris(2-aminoethyl) amine functionalized silica gel for solid-phase extraction and preconcentration of Cr(III), Cd(II) and Pb(II) from waters

2008 ◽  
Vol 157 (1) ◽  
pp. 154-160 ◽  
Author(s):  
Xinping Huang ◽  
Xijun Chang ◽  
Qun He ◽  
Yuemei Cui ◽  
Yunhui Zhai ◽  
...  
Keyword(s):  
Solid Phase Extraction ◽  
Silica Gel ◽  
Solid Phase ◽  
Phase Extraction ◽  
Functionalized Silica ◽  
Amine Functionalized

scholarly journals Acceptorless dehydrogenation of N -heterocycles by supported Pt catalysts

2017 ◽  
Vol 281 ◽  
pp. 507-511 ◽  
Author(s):  
Sondomoyee K. Moromi ◽  
S.M.A. H. Siddiki ◽  
Kenichi Kon ◽  
Takashi Toyao ◽  
Ken-ichi Shimizu
Keyword(s):  
Pt Catalysts ◽  
Supported Pt Catalysts

Synthesis of a rhodium(I) carbonyl complex with a chiral aminodiphosphine ligand and its immobilization onto aminopropyl functionalized silica gel

2010 ◽  
Vol 63 (7) ◽  
pp. 1107-1117 ◽  
Author(s):  
Pankaj Das ◽  
Malabika Borah ◽  
Chandan Sarmah ◽  
Pradip K. Gogoi ◽  
Lidia M. Alekseenko ◽  
...  
Keyword(s):  
Silica Gel ◽  
Carbonyl Complex ◽  
Functionalized Silica

Highly selective determination of palladium(II) after preconcentration using Pd(II)-imprinted functionalized silica gel sorbent prepared by a surface imprinting technique

2006 ◽  
Vol 157 (1-2) ◽  
pp. 7-11 ◽  
Author(s):  
Hong Zheng ◽  
De Zhang ◽  
Wen Ying Wang ◽  
Yan Qing Fan ◽  
Jing Li ◽  
...  
Keyword(s):  
Silica Gel ◽  
Functionalized Silica ◽  
Surface Imprinting ◽  
Selective Determination ◽  
Surface Imprinting Technique

Microwave Assisted Oxidation of Benzyl Halides to Aldehydes and Ketones with 4-Hydroxypyridinium Nitrate Functionalized Silica Gel in Aqueous Media

2021 ◽  
pp. 1-8
Author(s):  
Shermineh sadat Ghalehbandi ◽  
Dadkhoda Ghazanfari ◽  
Sayed Ali Ahmadi ◽  
Enayatollah Sheikhhosseini
Keyword(s):  
Silica Gel ◽  
Aqueous Media ◽  
Functionalized Silica ◽  
Microwave Assisted ◽  
Aldehydes And Ketones ◽  
Benzyl Halides
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