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

Formation of carbon nanotubes through ethylene decomposition over supported Pt catalysts and silica-coated Pt catalysts

Carbon ◽  
2009 ◽  
Vol 47 (5) ◽  
pp. 1251-1257 ◽  
Author(s):  
Sakae Takenaka ◽  
Toshiyuki Iguchi ◽  
Eishi Tanabe ◽  
Hideki Matsune ◽  
Masahiro Kishida
Keyword(s):  
Carbon Nanotubes ◽  
Pt Catalysts ◽  
Ethylene Decomposition ◽  
Supported Pt Catalysts

scholarly journals Preparation of Polyaniline Covalently Grafted Carbon Nanotubes Supported Pt Catalysts and Its Electrocatalytic Performance for Methanol

2013 ◽  
Vol 71 (12) ◽  
pp. 1647 ◽  
Author(s):  
Jianhui Chen ◽  
Hao Tong ◽  
Zhenzhen Gao ◽  
Jiajia Zhu ◽  
Xiaogang Zhang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Pt Catalysts ◽  
Electrocatalytic Performance ◽  
Supported Pt Catalysts

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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