%R 10.1016/j.cej.2017.10.087
%D 2018
%L scholars10507
%J Chemical Engineering Journal
%O cited By 65
%K Carbon dioxide; Carbon nanofibers; Catalysts; Copper; Desorption; High resolution transmission electron microscopy; Hydrogenation; Inductively coupled plasma; Methanol; Nanofibers; Optical emission spectroscopy; Precipitation (chemical); Synthesis gas manufacture; Temperature programmed desorption; X ray diffraction; Zirconia, Carbon dioxide hydrogenation; Cu loadings; Deposition precipitation methods; Inductively coupled plasma-optical emission spectroscopy; Methanol synthesis; Physico-chemical characterization; Slurry reactor; Temperature-programmed reduction, X ray photoelectron spectroscopy
%X A series of novel bimetallic copper/zirconia carbon nanofibers supported catalysts with different Cu contents (5�25 wt) were synthesized via deposition precipitation method. The physicochemical characterization of the calcined catalysts was carried out by X-ray diffraction, inductively coupled plasma optical emission spectroscopy, N2 adsorption�desorption, N2O chemisorption, temperature programmed reduction, X-ray photoelectron spectroscopy, high resolution transmission electron microscopy and temperature programmed CO2 desorption. Structure-reactivity correlation for catalytic hydrogenation of CO2 to methanol was discussed in details. Reaction studies revealed 15 wt as optimum Cu concentration for CO2 conversion to methanol with CO2/H2 feed volume ratio of 1:3. Cu surface area was found to play a vital role in methanol synthesis rate. CO2 conversion was observed to be directly proportional to the number of total basic sites. A comparative study of this novel catalyst with the recently reported data revealed the better CO2 conversion at relatively low reaction temperature. © 2017 Elsevier B.V.
%P 619-629
%I Elsevier B.V.
%A I.U. Din
%A M.S. Shaharun
%A A. Naeem
%A S. Tasleem
%A M. Rafie Johan
%V 334
%T Carbon nanofibers based copper/zirconia catalysts for carbon dioxide hydrogenation to methanol: Effect of copper concentration