Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 632
Book Description
Adsorption and Decomposition of Methanol on Zinc Oxide Catalysts
Author: Catalytic Decomposition of Methanol by Zinc Oxide and Copper
Author: Dorothy QuiggleCatalytic Decomposition of Methanol by Zinc Oxide and Chromium Oxide
Author: Donald S. CryderIdentification and Characterization of Active Sites and Stable Surface Intermediates on Copper-based Methanol Synthesis Catalysts by Temperature-programmed Desorption and FTIR Spectroscopy
Author: David Lloyd RobertsDecomposition of Methanol Over Catalysts Composed of Oxides of Zinc and Chromium
Author: John Randolph HuffmanPublisher:
ISBN:
Category : Catalysis
Languages : en
Pages : 14
Book Description
The Adsorption of Hydrogen and Water Vapor on Zinc Oxide
Author: Thomas Penn MayPublisher:
ISBN:
Category : Science
Languages : en
Pages : 36
Book Description
Adsorption and Deactivation Characteristics of Cu/ZnO-Based Catalysts for Methanol Synthesis from Carbon Dioxide
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 12
Book Description
The adsorption and deactivation characteristics of coprecipitated Cu/ZnO-based catalysts were examined and correlated to their performance in methanol synthesis from CO2 hydrogenation. The addition of Ga2O3 and Y2O3 promoters is shown to increase the Cu surface area and CO2/H2 adsorption capacities of the catalysts and enhance methanol synthesis activity. Infrared studies showed that CO2 adsorbs spontaneously on these catalysts at room temperature as both monoand bi-dentate carbonate species. These weakly bound species desorb completely from the catalyst surface by 200 °C while other carbonate species persist up to 500 °C. Characterization using N2O decomposition, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM) with energy-dispersive X-ray spectroscopy (EDX) analysis clearly indicated that Cu sintering is the main cause of catalyst deactivation. Ga and Y promotion improves the catalyst stability by suppressing the agglomeration of Cu and ZnO particles under pretreatment and reaction conditions.
Decomposition of Methanol Over Catalyst Composed of Oxides of Zinc and Chromium
Author: Adsorption and Reaction on Promoted Zinc Oxide Catalysts in Relation to Higher Alcohol Synthesis
Author: Peter John Robert O'MalleyPublisher:
ISBN:
Category :
Languages : en
Pages : 696
Book Description
Author: Sabrinas Su-Bin Fu