Title: Synthesis, characterisation, adsorption ability and activity of Cu,ZnO@UiO-66 in methanol synthesis

Authors: Nguyen Thi Thuy Van; Luu Cam Loc; Nguyen Tri; Hoang Tien Cuong

Addresses: Institute of Chemical Technology, Vietnam Academy of Science and Technology 1 Mac Dinh Chi Street, Ho Chi Minh City, Vietnam ' Institute of Chemical Technology, Vietnam Academy of Science and Technology 1 Mac Dinh Chi Street, Ho Chi Minh City, Vietnam ' Institute of Chemical Technology, Vietnam Academy of Science and Technology 1 Mac Dinh Chi Street, Ho Chi Minh City, Vietnam ' Institute of Chemical Technology, Vietnam Academy of Science and Technology 1 Mac Dinh Chi Street, Ho Chi Minh City, Vietnam

Abstract: Metal-organic framework UiO-66 was synthesised by solvothermal method. The influence of synthesis conditions on the quality of UiO-66 was studied. The obtained material was characterised by XRD, IR, TGA, SEM, TEM, AAS and nitrogen physisorption measurements (BET). Physisorption measurement of different gases (CO2, H2, CH4 and CO2/CH4) was carried out using a high pressure volumetric analyser. Synthesised UiO-66 in the form of ball shaped crystals possessed high surface areas of up to 1041 m2.g−1, micropore volume of 0.913 cm3.g−1, pore radius of 15 and thermal stability of up to 423C. According to experimental results, at 30 bar, CO2 storage capacity of the synthesised UiO-66 is nine times higher than that of H2 and four times higher than that of CH4. The Cu@UiO-66 and Cu,ZnO@UiO-66 catalysts were prepared and tested in the hydrogenation of CO and CO2. As it followed from investigation, Cu,ZnO@UiO-66 catalyst has been shown to be the best one with the yield of methanol reaching 229.04 μmol.g−1.h−1 and 153.93 μmol.g−1.h−1in the hydrogenation of CO and CO2, respectively.

Keywords: UiO-66; adsorption; CH3OH synthesis; nanotechnology; methanol synthesis; hydrogenation.

DOI: 10.1504/IJNT.2015.067898

International Journal of Nanotechnology, 2015 Vol.12 No.5/6/7, pp.405 - 415

Available online: 08 Mar 2015 *

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