Abstract: Disclosed is a process for the catalytic thermal decomposition of ammonia into hydrogen and nitrogen by contacting ammonia at a temperature of at least 500° C. with a porous ceramic layer which comprises nickel. Also disclosed is a reactor for carrying out the process.

Abstract: Disclosed is a process for the catalytic thermal decomposition of ammonia into hydrogen and nitrogen by contacting ammonia at a temperature of at least 500° C. with a porous ceramic layer which comprises nickel. Also disclosed is a reactor for carrying out the process.

Abstract: The invention relates to a catalyst for the thermal decomposition of ammonia. The catalyst comprises at least 25% by weight of nickel oxide and is present in powder form and/or comprises from 30% to 42% by weight of nickel oxide. Also disclosed is a process for the thermal decomposition of ammonia into hydrogen and nitrogen, which process comprises contacting ammonia with the catalyst of the invention.

Abstract: A fuel cell is provided that is suited for mobile and portable applications. Using an innovative anode with a layer to control the rate of diffusion of fuel to the fuel cell anode, fuel crossover through the liquid or solid electrolyte of the fuel cell is prevented Electrolyte integrity is preserved, giving a more robust and reliable fuel cell. Further, the innovative anode allows for the use of highly active fuel compositions which otherwise may be chemically oxidized, releasing heat, or give unstable electrical currents. The use of active fuel compositions with the anode, as well as a fuel composition and liquid electrolyte in which gaseous side-products dissolve allows for the design of robust, powerful portable fuel cell which can be used at room temperature with little peripheral equipment.