The high performance of tungsten carbides/porous bamboo charcoals supported Pt catalysts for methanol electrooxidation

Efficient bifunctional electrocatalytic activity for reduction and oxidation reactions based on the AuNP@PANI@PtFe core–multishell nanostructures is presented. The AuNP@PANI@PtFe exhibits an enhanced catalytic activity and durability for ORR and MOR than conventional carbon supported Pt catalysts.

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Fabrication and performance investigation of nanocrystal tungsten nitride supported Pt catalysts for methanol electrooxidation

New Journal of Chemistry ◽

10.1039/c3nj00717k ◽

2013 ◽

Vol 37 (12) ◽

pp. 3976 ◽

Cited By ~ 12

Author(s):

Shibin Yin ◽

Lixiang Yang ◽

Lin Luo ◽

Fei Huang ◽

Yinghuai Qiang ◽

...

Keyword(s):

Methanol Electrooxidation ◽

Tungsten Nitride ◽

Pt Catalysts ◽

Supported Pt Catalysts ◽

And Performance

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

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2020.09.225 ◽

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

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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 ◽

10.3390/catal11010088 ◽

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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