Effect of Nickel on Bimetallic Nanoalloy Catalyst for Hydrogen Generation

Abstract

A mesoporous Fe-Ni catalyst was prepared by microwave combustion method by using glycine as a fuel to help the combustion occur in the microwave. The bimetallic catalyst synthesized was intend to accelerate the production of hydrogen via decomposition of formic acid. The hydrogen produced supposedly can substitute the energy source used now especially from fossil fuels to contribute to the reduction of greenhouse effect. The catalyst sample was characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and N 2 adsorption-desorption isotherm (BET). From the BET isotherms, a type IV isotherm was observed, indicate the presence of mesoporous solid. XRD diffractograms of Fe-Ni have welldefined diffraction patterns with strong and sharp diffraction peaks, indicating that they are crystalline. The SEM images show the presence of voids and pores in the sample and spongy structure which also consisted of very fine crystalline. The selectivity for H 2 formation using the prepared bimetallic catalyst was achieved ranging of 94 to 99% for 120 minutes at optimum conversion of formic acid and merely at room temperature.

Decomposition of Formic Acid and Acetic Acid into Hydrogen Using Graphitic Carbon Nitride Supported Single Metal Catalyst

“…Released of toxic and greenhouse gases such as sulphur dioxide (SO 2 ) as well as carbon dioxide (CO 2 ) are the main reason for global warming other than environmental pollution which caused by used of large fossil fuels. An important transformation has been made by scientists around the world to study alternative ways that are better and more effective in reducing the use of fossil fuels by using cleaner fuel sources such as hydrogen [1,2].…”