نتایج جستجو برای: propane oxidative dehydrogenation

تعداد نتایج: 134254  

Journal: :Journal of the American Chemical Society 2009
Rajamani Gounder Enrique Iglesia

The location of Brønsted acid sites within zeolite channels strongly influences reactivity because of the extent to which spatial constraints determine the stability of reactants and of cationic transition states relevant to alkane activation catalysis. Turnover rates for monomolecular cracking and dehydrogenation of propane and n-butane differed among zeolites with varying channel structure (H...

2014
Jesper J H B Sattler Ines D Gonzalez-Jimenez Lin Luo Brien A Stears Andrzej Malek David G Barton Beata A Kilos Mark P Kaminsky Tiny W G M Verhoeven Eline J Koers Marc Baldus Bert M Weckhuysen

A novel catalyst material for the selective dehydrogenation of propane is presented. The catalyst consists of 1000 ppm Pt, 3 wt% Ga, and 0.25 wt% K supported on alumina. We observed a synergy between Ga and Pt, resulting in a highly active and stable catalyst. Additionally, we propose a bifunctional active phase, in which coordinately unsaturated Ga(3+) species are the active species and where ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Peter J Bonitatibus Sumit Chakraborty Mark D Doherty Oltea Siclovan William D Jones Grigorii L Soloveichik

Reversibility of a dehydrogenation/hydrogenation catalytic reaction has been an elusive target for homogeneous catalysis. In this report, reversible acceptorless dehydrogenation of secondary alcohols and diols on iron pincer complexes and reversible oxidative dehydrogenation of primary alcohols/reduction of aldehydes with separate transfer of protons and electrons on iridium complexes are shown...

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