20 research outputs found
Occupation switching of d orbitals in vanadium dioxide probed via hyperfine interactions
No full textUtilization of Metal Sulfide Material of (CuGa)<sub>1–<i>x</i></sub>Zn<sub>2<i>x</i></sub>S<sub>2</sub> Solid Solution with Visible Light Response in Photocatalytic and Photoelectrochemical Solar Water Splitting Systems
No full textUpon forming a solid solution between
CuGaS<sub>2</sub> and ZnS,
we have successfully developed a highly active (CuGa)<sub>1–<i>x</i></sub>Zn<sub>2<i>x</i></sub>S<sub>2</sub> photocatalyst
for H<sub>2</sub> evolution in the presence of sacrificial reagents
under visible light irradiation. The Ru-loaded (CuGa)<sub>0.8</sub>Zn<sub>0.4</sub>S<sub>2</sub> functioned as a H<sub>2</sub>-evolving
photocatalyst in a Z-scheme system with BiVO<sub>4</sub> of an O<sub>2</sub>-evolving photocatalyst and Co complexes of an electron mediator.
The Z-scheme system split water into H<sub>2</sub> and O<sub>2</sub> under visible light and simulated sunlight irradiation. The (CuGa)<sub>1–<i>x</i></sub>Zn<sub>2<i>x</i></sub>S<sub>2</sub> possessed a p-type semiconductor character. The photoelectrochemical
cell with a Ru-loaded (CuGa)<sub>0.5</sub>ZnS<sub>2</sub> photocathode
and a CoO<sub><i>x</i></sub>-modified BiVO<sub>4</sub> photoanode
split water even without applying an external bias. Thus, we successfully
demonstrated that the metal sulfide material group can be available
for Z-scheme and electrochemical systems to achieve solar water splitting
into H<sub>2</sub> and O<sub>2</sub>
Reaction kinetics of methanol carbonylation to methyl formate catalyzed by CH3O- exchanged resin
No full text
