Method for preparing molybdenum oxide nanoparticles

A method for preparing molybdenum oxide nanoparticles, comprising:

• (a) preparing a precursor solution by dissolving a molybdenum salt in a first polar solvent;
• (b) generating an aerosol by applying ultrasonic waves to the precursor solution, and spraying the aerosol to a pre-heated reactor using a carrier gas;
• (c) obtaining molybdenum oxide micron-sized particles by pyrolyzing the aerosol;
• and
• (d) obtaining molybdenum oxide nanoparticles by dispersing the molybdenum oxide micron-sized particles in a second polar solvent and performing a solvothermal reduction reaction,
• wherein the molybdenum oxide micron-sized particles are polycrystalline,
• wherein a BET specific surface area of the molybdenum oxide nanoparticles is at least 100 m2/g.