Recent studies focused on the carbothermal reduction of magnesia as a possible production process metallic Mg powders that can be used transportation fuels due to their high energetic value, absence greenhouse gas emissions, and ability regenerate them (through reduction/combustion cycles). Herein, we investigated development process, under vacuum, in Sol@rmet reactor using concentrated solar e...

ZnO nanowire nucleation mechanism and initial stages of nanowire growth using the carbothermal reduction technique are studied confirming the involvement of the catalyst at the tip in the growth process. Role of the Au catalyst is further confirmed when the tapering observed in the nanowires can be explained by the change in the shape of the catalyst causing a variation of the contact area at t...