Fusion power is considered as a promising candidate for future sustainable sources of energy. A major challenge for future fusion devices is the development of plasma facing materials (PFMs). The PFMs should be able to resist the harsh environment of fusion plasmas, e.g., high thermal loads, neutron irradiation, particle fluxes, etc. Therefore, the materials that could be used for PFMs are very limited. Tungsten is a very promising candidate for PFMs due to its high melting point, high temperature strength, good thermal conductivity, low erosion in fusion radiation environment, and low tritium retention.

Tungsten-based materials are widely used in various field for their unique properties such as high melting points, tensile and creep strength, corrosion and wear resistance, electrical and thermal conductivity. W-Y2O3 nano composite powders were synthesized by wet chemical route using APT as raw materials. The hydrogen ion concentration (ρ(H+)) was controlled to investigate its effect on the grain size and morphology of W-Y2O3 nano composite powders.

The ever-increasing energy demand in the world and the negative environmental impact of fossil fuels has made the development of renewable fuels a priority in science and engineering research. Photoelectrochemical (PEC) water splitting is considered a promising method to produce hydrogen using water as raw material.