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https://en.wikipedia.org/wiki/Catalyst_support
In chemistry, a catalyst support is the material, usually a solid with a high surface area, to which a catalyst is affixed. The activity of heterogeneous catalysts and nanomaterial-based catalysts occurs at the surface atoms. Consequently, great effort is made to maximize the …
https://pubs.acs.org/doi/abs/10.1021/ja01495a021
Article Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days. Citations are the number of other articles citing this ...Cited by: 494
http://www.modernscientificpress.com/Journals/ViewArticle.aspx?H86Z5Noa2iKDNvH/0wRKWseJoAJ5TYjO+qckyuyppyRvVrxYW+npCixFSjXbUFJo
The total acidity of all catalysts was determined by means of the n-butylamine titration method [20-22], using an orion 420 digital A model using a double junction electrode. In this method 0.1 gm catalyst was heated under vacuum, then 10 mL of acetonitrile was added, and after agitation for 2 hours
http://www.catalystcarrier.net/alumina-catalyst-carrier/
what is alumina catalyst carrier? ... These properties have important implications for the alumina used as a catalyst support. Alumina is mostly prepared from its hydroxide (also known as hydrated alumina or alumina hydrate). ... The surface acidity of the alumina and the supported active components constitute a bifunctional catalyst.
https://www.sciencedirect.com/topics/chemistry/catalyst-support
Catalyst support plays an important role for supported metal catalysts in bringing out the capability of the supported metal as a catalytically active center. Generally, materials for catalyst supports show high surface area, chemical stability as well as capability for dispersing metal particles highly over the surface. ... The acidity and the ...
https://www.sciencedirect.com/science/article/pii/S0016236119321611
Potassium was observed on all the spent catalysts, indicating transfer of alkali metal from the biomass to the catalyst. Potassium may decrease the acidity of the catalyst over time, thus reducing the positive effect of using a more acidic support.Author: Magnus Zingler Stummann, Elaine Elevera, Asger Baltzer Hansen, Lars Pilsgaard Hansen, Pablo Beato, B...
https://www.researchgate.net/publication/333148174_Influence_of_Support_Acidity_of_PtNb2O5_Catalysts_on_Selectivity_of_CO2_Hydrogenation
An increase in the acidity of the support resulted in an improvement in the CO2 conversion owing to the strong interaction between the Pt and the catalyst support, but it was detrimental for the ...
https://pubs.acs.org/doi/10.1021/ie970792e
The mixed alcohols were synthesized at different reaction temperatures, different GHSVs, and different pressures over K−MoO3 supported on different supports such as γ-Al2O3 and SiO2. The ammonia adsorption over the catalysts was studied using temperature program desorption (TPD). The ethanol decomposition was studied over these catalysts, which has shown that the decomposition activity was ...
http://www.thepharmajournal.com/archives/2017/vol6issue11/PartD/6-11-13-765.pdf
Catalyst support is the material, usually a solid with high surface area to which catalyst is affixed. Typical supports include various kinds of carbon, alumina and silica. The reactivity of ... lower molar ration of methnol and lower acidity of catalystAuthor: Kiran Y Paranjpe
http://www.fhi-berlin.mpg.de/acnew/department/pages/teaching/pages/teaching__wintersemester__2006_2007/koehler_preparation_supported_catalysts_111006.pdf
Final bulk catalyst support Supported catalysts Supported metal catalyst Honeycumb (monoliths), egg-shell catalysts: first preparation of ... Surface acidity and surface charge Water coordinated to metal ions (e.g. in first layer of the above multi layer model)
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