ABSTRACT Basic factors affecting the structure and the morphological properties of the Magnesia-Supported Nickel system are reviewed and the general strategy of catalyst design for the reforming of hydrocarbons to hydrogen/syngas is outlined. After the light of an“entropic” tendency of MgO and NiO to “mix”, forming true substitutional NixMg(1-x)O solid solutions, the crucial effects of synthesis route, metal loading and thermal treatments on the morphology and catalytic behaviour of the Ni/MgO system are assessed. The singular effects of “doping” on the morphology, electronic and catalytic properties are also documented.
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