Now showing items 1-10 of 760
Deactivation of poly(o-aminophenol) film electrodes by storage without use in the supporting electrolyte solution and its comparison with other deactivation processes
The effect of storage time without use (STWU) in the supporting electrolyte solution on the conducting properties of poly(o-aminophenol) (POAP) film electrodes was studied. Cyclic voltammetry (CV), rotating disc electrode ...
Catalysts of alkaline nitrates supported on oxides for the diesel soot combustion. Deactivation by hydro-treatment and CO2.
The deactivation of supported catalysts CsNO3 and LiNO3 for diesel soot combustion is studied in this work. The effect of hydro-treatment at high temperature and presence of CO2 in feed flow were investigated. Catalysts ...
Gas phase imidazole methylation on zeolites and HPA/SiO2: Study of acid site requirements and catalyst deactivation
(Elsevier Inc, 2013-07)
The gas-phase alkylation of imidazole with methanol was studied at 523 K on solid acids such as HPA/SiO2 and zeolites HMCM22, HBEA, NaY, ZnY and HY. The nature, density and strength of acid sites were determined by temperature ...
Deactivation and regeneration of Pt/Al2O3 catalysts during the hydrodechlorination of carbon tetrachloride
(Elsevier Science, 2009-04)
Deactivation and regeneration of Pt/Al2O3 catalysts during the hydrodechlorination of carbon tetrachloride were studied. The effect of reactant partial pressures and temperature on the catalyst deactivation was investigated. ...
Simultaneous deactivation by coke and sulfur of Pt-Re(Ge,Sn)/Al2O3 catalysts for n-hexane reforming
(Elsevier Science, 2000-04)
The simultaneous deactivation by coke and sulfur of monometallic Pt/Al2O3 and bimetallic Pt–Re(Ge, Sn)/Al2O3 catalysts was studied using n-hexane reforming as bifunctional test reaction and thiophene as poisoning molecule. ...
Deactivation of poly(o-aminophenol) film electrodes by storage without use in the supporting electrolyte solution and its comparison with other deactivation processes. A study employing EIS
Abstract The effect of storage time without use (STWU) in the supporting electrolyte solution on the charge-trans- port parameters of poly(o-aminophenol) (POAP) film electrodes was studied by electrochemical impedance ...
Study of the Deactivation of ß-galactosidase Entrapped in Alginate-carrageenan Gels
(Elsevier Science, 2005-07)
The stability of ß-galactosidase entrapped in Ca-alginate–K-k-carrageenan gels under operation conditions was studied. The thermal deactivation of the immobilised enzyme and the biocatalyst protein loss due to gel swelling ...
Deactivation of H3PW12O40/TiO2 catalyst used in the production of camphene
The deactivation of the H3PW12O40 (HPW) catalyst supported on TiO2 used in the isomerization reaction of α-pinene and its regeneration were studied. The regeneration of the deactivated catalyst was carried out with an ...
Implementación de un modelo de gestión de conocimiento y tecnología para una PyME de TIC en México, D.F.
(Maestría en Dirección Estratégica de las Tecnologías de Información y ComunicaciónFondo de Información y Documentación para la Industria INFOTEC, 2011)
Effect Of The Acid-Base Properties Of Mg-Al Mixed Oxides On The Catalyst Deactivation During Aldol Condensation Reactions
The effect of chemical composition of Mg-Al mixed oxides on both the acid-base properties and the deactivation process during the gas phase self-condensation of acetone was studied. The activity and selectivity for acetone ...