NOVELTY - Producing hydrogen by steam reforming of methanol, comprises contacting a gas phase comprising methanol and water with a solid catalyst that comprises a mixed metal oxide, where the mixed metal oxide comprises copper, zinc and gallium. The atomic percentage of copper relative to the total number of metal atoms in the oxide is 20-55 at.%.    USE - The process is useful for producing hydrogen that is useful: as a fuel to power a fuel cell which is a proton exchange membrane fuel cell, where the fuel cell is useful in a fuel cell system i.e. used in a portable electronic device comprising a laptop computer, a mobile internet device, a mobile phone, an MP3 player, a remote control device, a netbook, a video recording device, a camera, a portable military device, a satellite navigation device, or a handheld games console; and producing methanol (all claimed).    ADVANTAGE - The process: occurs substantially without any formation of carbon monoxide, where the level of carbon monoxide produced does not exceed 100 ppm, preferably does not exceed 10 ppm, without the need for complicated downstream multi-stage carbon monoxide post-treatments; and utilizes the catalysts, which provides for a high surface area and good methanol conversion.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for:    (1) a catalyst used in the process comprising the mixed metal oxide;    (2) producing the catalyst comprising (a) contacting a solution of copper nitrate, zinc nitrate and gallium nitrate with a metal carbonate, to produce a co-precipitate comprising the copper, zinc and gallium, (b) separating the co-precipitate from solution and (c) calcining the co-precipitate by heating the co-precipitate in air;    (3) a fuel cell system comprising a fuel cell and a methanol reformer which comprises the catalyst; and    (4) producing methanol by the hydrogenation of carbon dioxide, comprising contacting a gas phase comprising carbon dioxide and hydrogen, with the solid catalyst.