Search Results

You are looking at 71 - 80 of 127 items for :

  • "literature" x
  • Chemistry and Chemical Engineering x
  • Architecture and Architectonics x
  • All content x
Clear All

reduced in addition to ceria. From the literature, it is known that at about 500 °C, only the surface ceria reduction proceeds, the bulk reduction is possible above 800 °C [ 10 ]. In the presence of gold the surface layers, reduction of ceria is

Restricted access

. Literature reports show several different views about the effect of pH on dye adsorption [ 27 ]. Bilgic [ 28 ] reported that a change in pH of MB solutions has no significant effect on the adsorption of MB within bentonite [ 29 ]. Ghosh and Bhattacharyya [ 29

Restricted access

literature. Additionally, copper (Cu) species have been known to have the ability to catalyze the amination of aromatics in electrochemical processes [ 23 ]. More recently, Parida et al. [ 20 ] reported that a Cu-amine modified MCM-41 catalyst also showed

Restricted access

reported in literature [ 27 ]. The specific surface area of the oc-B–Mn oxide (206.4 m 2 g −1 ) was larger than that of the Mn oxide (138.8 m 2 g −1 ). The light absorption curve of the oc-B–Mn oxide was similar with that of the Mn oxide, while the oc

Restricted access

supported Cr III (Salm) (Salm, N,N ′-ethylene-bis-salicylamide) is not available in the literature. The present study deals with the immobilization of Cr III (Salm) on alumina and the evaluation of the comparative catalytic activities of neat and supported

Restricted access

[ 6 ]. The use of these ferrites as depolluting agents [ 7 ] or as gas sensors [ 8 ] has received increasing attention. Several methods for the preparation of copper ferrite can be found in the literature, the classical ones like ball

Restricted access

Ce–7Mg (ψ), 5Ce–5Mg ( filled triangle ), 7Ce–3Mg ( open circle ), and 9Ce–1Mg ( filled square ) versus time on stream The literature [ 3 , 5 , 6 , 21 ] indicated that the ceria improved a few percent of

Restricted access
Reaction Kinetics, Mechanisms and Catalysis
Authors: Luis Ernesto Sandoval-Díaz, Ericsson David Coy-Barrera, and Carlos Alexander Trujillo

preparation; the literature where silica supports for diverse catalytic systems are used is very abundant, especially for mesostructured materials [ 7 – 12 ]. Silica gels can be produced by the polymerization of silica in aqueous solutions, which might

Restricted access

inert and thermally stable under synthesis conditions. Selection of the proper salts A great number of salts S form crystalline solvates due to reaction with methanol (1) Analysis of the literature data on methanol

Restricted access

ethylene trimerization are catalyst precursors (metal compounds) and ligands in a ternary system or, in the quaternary system, promoter and cocatalyst (alkyl aluminum or alkyl aluminum oxide). The Literature shows that when Ni, Co, Mn, Cu, Mo, To, V

Restricted access