%0 Journal Article %T Effect of Sorbitol/Oxidizer Ratio on Microwave Assisted Solution Combustion Synthesis of Copper Based Nanocatalyst for Fuel Cell Grade Hydrogen Production %J Hydrogen, Fuel Cell & Energy Storage %I Iranian Research Organization for Science and Technology (IROST) %Z 2980-8537 %A Ajamein, Hossein %A Haghighi, Mohammad %D 2015 %\ 11/01/2015 %V 2 %N 4 %P 227-240 %! Effect of Sorbitol/Oxidizer Ratio on Microwave Assisted Solution Combustion Synthesis of Copper Based Nanocatalyst for Fuel Cell Grade Hydrogen Production %K CuO-ZnO-Al2O3 %K Microwave Combustion %K Fuel/Oxidizer Ratio %K Methanol steam reforming %K Hydrogen %R 10.22104/ijhfc.2015.265 %X Steam reforming of methanol is one of the promising processes for on-board hydrogen production used in fuel cell applications. Due to the time and energy consuming issues associated with conventional synthesis methods, in this paper a quick, facile, and effective microwave-assisted solution combustion method was applied for fabrication of copper-based nanocatalysts to convert methanol to hydrogen. For this purpose, a series of nanocatalysts with different sorbitol/nitrates ratios were synthesized by microwave-assisted combustion method. Their physicochemical properties were studied by XRD, FESEM, EDX, BET and FTIR analyses. It was found that enhancement of sorbitol/nitrates ratio led to increase of CuO dispersion and specific surface area, as well as smaller, nanometric and homogeneously dispersed particles. These significant characteristic properties especially achieved by CZA(S/N=3) nanocatalyst, resulted in high methanol conversion and hydrogen selectivity even at low temperatures. This effective performance was accompanied by negligible CO production as undesired by-product as well as poison in fuel cell applications. %U https://hfe.irost.ir/article_265_51bdafb7eb2996da3c3bb3290e1efab3.pdf