Journal ArticleDOI
Behavior of active sites on Cr-MCM-41 catalysts during the dehydrogenation of propane with CO2
Katsuomi Takehira,Yoshihiko Ohishi,Tetsuya Shishido,Tomonori Kawabata,Ken Takaki,Qinghong Zhang,Ye Wang +6 more
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TLDR
In this paper, the mechanism of catalyst deactivation and regeneration was discussed based on the structure-catalytic property relationships. And the authors concluded that during the reaction propane is dehydrogenated to propene by Cr(IV)O4 tetrahedra, which is simultaneously reduced to Cr(III)O6 octahedra.About:
This article is published in Journal of Catalysis.The article was published on 2004-06-10. It has received 193 citations till now. The article focuses on the topics: Propene & Catalysis.read more
Citations
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Journal ArticleDOI
Catalytic dehydrogenation of light alkanes on metals and metal oxides.
TL;DR: The study compares different catalysts in terms of the reaction mechanism and deactivation pathways and catalytic performance, as dehydrogenation for the production of light olefins has become extremely relevant.
Journal ArticleDOI
Carbon dioxide utilization as a soft oxidant and promoter in catalysis
TL;DR: The use of CO2 as a soft oxidant and promoter is a promising concept for industrial applications that could not only contribute to the mitigation of CO 2 levels, but also the development of economical and energy efficient syntheses of various chemicals.
Journal ArticleDOI
Oxidative dehydrogenation of propane to propylene with carbon dioxide
TL;DR: In this article, the authors provide a critical review on the current mechanistic understanding of three different catalyst types used in the ODPC reaction based on experimental studies; (i) zeolites with different frameworks, (ii) porous materials-supported metal oxides, and (iii) transition metal oxide and other metal catalysts.
Journal ArticleDOI
The nature of active chromium species in Cr-catalysts for dehydrogenation of propane: New insights by a comprehensive spectroscopic study
M. Santhosh Kumar,Nina Hammer,Magnus Rønning,Anders Holmen,De Chen,John C. Walmsley,John C. Walmsley,Gisle Øye +7 more
TL;DR: In this article, a series of x Cr SBA-15 and x Cr 2 O 3 catalysts were used for dehydrogenation of propane (DHP) to gain a better understanding of the nature and distribution of Cr species and their catalytic function.
Journal ArticleDOI
Preparation of Highly Dispersed Chromium Oxide Catalysts Supported on Mesoporous Silica for the Oxidative Dehydrogenation of Propane Using CO2: Insight into the Nature of Catalytically Active Chromium Sites
TL;DR: In this article, high-dispersed chromium oxide catalysts supported on mesoporous silica (Cr-MSU-x) were prepared via a (N0Mn+)I0 pathway with the goal of achieving the high performance oxidative dehydrogenation of propane (ODHP) reaction.
References
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Ordered mesoporous molecular sieves synthesized by a liquid-crystal template mechanism
TL;DR: In this paper, the synthesis of mesoporous inorganic solids from calcination of aluminosilicate gels in the presence of surfactants is described, in which the silicate material forms inorganic walls between ordered surfactant micelles.
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Heterogeneous Catalysts for Liquid-Phase Oxidations: Philosophers' Stones or Trojan Horses?
TL;DR: In this article, it was shown that the Ti(IV)/SiO2 catalysts are both a strong Lewis acid and a weak oxidant in their highest oxidation state, the latter criterion is necessary in order to minimize competing one-electron oxidation of the ROO ligand leading to homolytic decomposition of ROOH.
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An improved method for the calculation of pore size distribution from adsorption data
David Dollimore,G.R. Heal +1 more
TL;DR: In this paper, a method for calculating the pore size distribution from adsorption isotherms on porous solids is described, which is more exact and less tedious to use than some previously described methods.
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Surface Chemistry and Spectroscopy of Chromium in Inorganic Oxides.
TL;DR: This work focuses on the surface chemistry and spectroscopy of chromium in inorganic oxides and the mechanics of hydrogenation-dehydrogenation reactions.
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Perspectives in catalytic applications of mesostructured materials
TL;DR: In this paper, a review paper deals with proven and potential applications of mesoporous molecular sieves in catalysis, and is divided into two parts, respectively, dedicated to the design of solid catalysts and catalyst supports and to some relevant examples of catalytic processes.