Solar Hydrogen Generation from Lignocellulose

Solar Hydrogen Generation from Lignocellulose

Photocatalytic reforming of lignocellulosic biomass is an emerging approach to produce renewable H2 . This process combines photo-oxidation of aqueous biomass with photocatalytic hydrogen evolution at ambient temperature and pressure. Biomass conversion is less energy demanding than water splitting and generates high-purity H2 without O2 production. Direct photoreforming of raw, unprocessed bio...

Thermochemical solar hydrogen generation.

Solar direct, indirect and hybrid thermochemical processes are presented for the generation of hydrogen and compared to alternate solar hydrogen processes. A hybrid solar thermal/electrochemical process combines efficient photovoltaics and concentrated excess sub-bandgap heat into highly efficient elevated temperature solar electrolysis of water and generation of H2 fuel utilizing the thermodyn...

Photocatalytic Hydrogen Generation from Water using Solar Radiation

Solar photocatalytic water splitting is considered as a potential method for hydrogen production as both solar energy and water are renewable. The major task is the design of suitable photocatalysts, which can work efficiently under solar radiation, especially under visible light. The performance of the visible light active photocatalysts synthesized till date is far from satisfactory for any p...

Antenna molecule drives solar hydrogen generation.

It would be convenient if gigantic reservoirs of molecular hydrogen H2(g) existed in the earth’s crust that could be safely tapped as an energy source. Instead, most hydrogen found near the earth’s surface is bound up in water as protons, H(aq) that must be reduced before utilization as a fuel (1). When the electrons for proton reduction come from the oxidation of water to O2(g), this redox che...

Porosity-enhanced solar powered hydrogen generation in GaN photoelectrodes