Pd/CuBTC for CO Oxidation Reaction: The Effect of Synthesis and reduction parameters
Paper ID : 1042-ICNS
Authors:
Fateme Abbasi *1, Jvad Karimi Sabet2, Cyrous Ghotbi1
1Department of Petroleum and Chemical Engineering, Sharif University of Technology, Tehran, Iran
2Nuclear Science and Technology Research Institute, Tehran, Iran
Abstract:
Metal-organic frameworks (MOFs) are crystalline compounds composed of metal ions coordinated to organic linkers. CuBTC (formula: Cu3(BTC)2(H2O)3, also known as HKUST-1 or MOF-199) is well known commercial MOF and has extensively been studied in various applications such as gas separation and storage. 1%Pd/CuBTC and 2% Pd/CuBTC have been synthesized by a simple wet impregnation method and the effect of synthesis pH (pH = 7,8,9, and 10) and concentration of CuBTC-water mixture has been investigated. The catalyst has been reduced by H2/He with various H2 concentrations (CH2 = 2%, 5%, 10%, 25%, 100%) and then tested in the CO oxidation reaction with a gas mixture containing 1%CO, 20%O2, and 79%He. The results show that CuBTC structure collapses at high water concentration and the Pd loading increases with pH. The activity and thermal stability of the catalysts are affected by H2 concentration and the catalytic activity increases to CH2=10% and decreases from that point.
Keywords:
metal-organic framework; CuBTC; CO oxidation reaction; pH; structure stability
Status : Abstract Accepted (Poster Presentation)