Relationship between Surface Chemistry and Catalytic Performance of Mesoporous γ-Al2O3 Supported VOX Catalyst in Catalytic Dehydrogenation of Propane

2016 ◽  
Vol 8 (39) ◽  
pp. 25979-25990 ◽  
Author(s):  
Peng Bai ◽  
Zhipeng Ma ◽  
Tingting Li ◽  
Yupeng Tian ◽  
Zhanquan Zhang ◽  
...  
Keyword(s):  
Surface Chemistry ◽  
Catalytic Performance ◽  
Catalytic Dehydrogenation

scholarly journals Probing the surface reactivity of nanocrystals by the catalytic degradation of organic dyes: the effect of size, surface chemistry and composition

2017 ◽  
Vol 5 (23) ◽  
pp. 11917-11929 ◽  
Author(s):  
Jordi Piella ◽  
Florind Merkoçi ◽  
Aziz Genç ◽  
Jordi Arbiol ◽  
Neus G. Bastús ◽  
...  
Keyword(s):  
Surface Chemistry ◽  
Surface Coating ◽  
Crystal Size ◽  
Organic Dyes ◽  
Catalytic Performance ◽  
Surface Reactivity ◽  
Catalytic Degradation ◽  
Comprehensive Study

We herein present a comprehensive study on how the catalytic performance and reusability of Au nanocrystals (NCs) are affected by systematic variations of crystal size, surface coating and composition.

scholarly journals Catalytic Dehydrogenation of Methylcyclohexane by Pt Nanoparticles Supported on Nitrogen doped Carbon

2020 ◽  
Vol 194 ◽  
pp. 01030
Author(s):  
Jian Wang ◽  
Shiguang Fan ◽  
Xuan Xu ◽  
Huiru Yun ◽  
He Liu ◽  
...  
Keyword(s):  
Surface Area ◽  
Pt Nanoparticles ◽  
Catalytic Performance ◽  
Support Surface ◽  
Catalytic Dehydrogenation ◽  
Nitrogen Doped ◽  
Surface Areas ◽  
Transmission Electron ◽  
Methylcyclohexane Dehydrogenation ◽  
Nitrogen Doped Carbon

Pt nanoparticles supported on nitrogen doped carbon (Pt/CN) catalysts with different surface areas were obtained and characterized by transmission electron microscope （TEM） and brunner-emmet-teller （BET）. The characterized results showed that Pt nanoparticles dispersed uniformly on the support surface, and the surface area of the Pt/CN catalyst increased with the increase of annealing temperature. Subsequently, the catalytic performance of Pt/CN catalysts for methylcyclohexane dehydrogenation was studied. The activity of Pt/CN catalysts in methylcyclohexane dehydrogenation increased with the increase of the surface area, Pt/CN-1000 catalyst has the largest surface area and the highest catalytic activity, with the methylcyclohexane conversion of 99% and the TOF value of 424.78 h-1 at 180 ℃ for 150 minutes.

Surface chemistry and catalytic performance of chromia/alumina catalysts derived from different potassium impregnation sequences

2015 ◽  
Vol 351 ◽  
pp. 250-259 ◽  
Author(s):  
Daolan Liu ◽  
Peng Bai ◽  
Pingping Wu ◽  
Dezhi Han ◽  
Yongming Chai ◽  
...  
Keyword(s):  
Surface Chemistry ◽  
Catalytic Performance ◽  
Alumina Catalysts

scholarly journals A new perspective on catalytic dehydrogenation of ethylbenzene: the influence of side-reactions on catalytic performance

2015 ◽  
Vol 5 (7) ◽  
pp. 3782-3797 ◽  
Author(s):  
Sara Gomez Sanz ◽  
Liam McMillan ◽  
James McGregor ◽  
J. Axel Zeitler ◽  
Nabil Al-Yassir ◽  
...  
Keyword(s):  
Coke Formation ◽  
Catalytic Performance ◽  
Side Reactions ◽  
Catalytic Dehydrogenation ◽  
Dehydrogenation Of Ethylbenzene ◽  
New Perspective

The dehydrogenation of ethylbenzene to styrene over CrOx/Al2O3 proceeds via a partially oxidative mechanism due to in situ formation of CO2. Coke formation also plays a key role in dictating catalytic performance.

Carbon dioxide hydrogenation to methanol over Cu/ZrO2/CNTs: effect of carbon surface chemistry

RSC Advances ◽  
2015 ◽  
Vol 5 (56) ◽  
pp. 45320-45330 ◽  
Author(s):  
Guannan Wang ◽  
Limin Chen ◽  
Yuhai Sun ◽  
Junliang Wu ◽  
Mingli Fu ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Surface Chemistry ◽  
Catalytic Performance ◽  
Carbon Surface ◽  
Nitrogen Species ◽  
Carbon Dioxide Hydrogenation ◽  
Adsorption Capability ◽  
Excellent Catalytic Performance

The excellent catalytic performance of Cu/ZrO2/CNTs is related to its H2 and CO2 adsorption capability, originating from nitrogen species on CNT.

Activated Carbon Supported Iron Catalyst for the Fischer-Tropsch Synthesis

2013 ◽  
Vol 805-806 ◽  
pp. 232-235 ◽  
Author(s):  
Hong Yan Ban ◽  
Zi Wei Wang ◽  
Zhi Qiang Wang ◽  
Zhi Gang Fang
Keyword(s):  
Activated Carbon ◽  
Surface Chemistry ◽  
Iron Catalyst ◽  
Catalytic Performance ◽  
Physical Structure ◽  
Fischer Tropsch ◽  
Syngas Conversion ◽  
Ft Synthesis ◽  
Reaction Performance ◽  
Methane Selectivity

The catalyst prepared using the AC as support showed remarkably improvement of reaction performance. The improvement of the reaction performance obtained for the AC is probably ascribed to the physical structure and surface chemistry of AC. The support and corresponding catalyst are characterized by N2 adsorption. Catalytic performance of the catalyst during FT synthesis was excellent. Syngas conversion was about 74%, whereas methane selectivity was low (~2 %).

Crystal-Plane-Controlled Surface Chemistry and Catalytic Performance of Surfactant-Free Cu2O Nanocrystals

ChemSusChem ◽  
2013 ◽  
Vol 6 (10) ◽  
pp. 1966-1972 ◽  
Author(s):  
Qing Hua ◽  
Tian Cao ◽  
Huizhi Bao ◽  
Zhiquan Jiang ◽  
Weixin Huang
Keyword(s):  
Surface Chemistry ◽  
Catalytic Performance ◽  
Crystal Plane

Catalytic dehydrogenation of isobutane over a Ga2O3/ZnO interface: reaction routes and mechanism

2016 ◽  
Vol 6 (9) ◽  
pp. 3128-3136 ◽  
Author(s):  
Guowei Wang ◽  
Chunyi Li ◽  
Honghong Shan
Keyword(s):  
Interface Reaction ◽  
Catalytic Performance ◽  
Catalytic Dehydrogenation ◽  
Isobutane Dehydrogenation ◽  
Physical Mixtures ◽  
Reaction Routes

In this work, physical mixtures of ZnO and Ga2O3, even with a small amount of Ga2O3, were found to exhibit greatly enhanced catalytic performance for isobutane dehydrogenation compared to their individual components, namely solely ZnO or Ga2O3.

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