Study of photocatalysts for hydrogen production through photocatalytic steam reforming of methane at ambient temperature

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We found a photocatalytic steam reforming of methane(PSRM) to produce hydrogen from water and methane as renewable resources, which can utilize solar energy. To develop active photocatalysts for the PSRM, we examined some photocatalysts and found several guidelines for the design of catalyst and the reaction system :(1) reaction condition suitable for the formation of surface intermediates,(2) semiconductor particles having less defects and high specific surface area,(3) doping and surface modification suitable for the semiconductors,(4) god junction between the semiconductor surface and the cocatalyst nanoparticles,(5) possible bifunctional cocatalyst, and(6) thermal acceleration.