Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5146504 | International Journal of Hydrogen Energy | 2017 | 7 Pages |
Abstract
To design efficient Cu-based catalysts for methanol-steam reforming (MSR) reaction, the Cu-Al-based layered double hydroxides (LDHs) substituted with Ni and Zn have been synthesized by the co-precipitation method. The prepared LDHs are calcined at 400 °C to form the mixed oxides and reduced at 250 °C for evaluating their catalytic performance, where water/methanol molar ratio and weight hourly space velocity (WHSV) are 1.1 and 12/h, respectively. These LDH-derived catalysts have also been characterized by XRD, TPR, N2O chemisorption analyses, etc. so that their physicochemical properties corresponding to their catalytic performances have been investigated. The experimental results and characterization data reveal that the reduced Cu-Al mixed oxide (Cu/Al molar ratio = 3) shows the best catalytic performance for MSR because the extremely high dispersion of Cu particles (CuO crystallite size < 10 nm) as well as the largest metallic surface area have successfully been achieved by the suggested preparation method despite of the highest Cu content.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Woohyun Kim, K. Khaja Mohaideen, Dong Joo Seo, Wang Lai Yoon,