Solar Hydrogen Project

Group Update

1st September 2009

Solar Hydrogen Project

Palang Bumroongsakulsawat

1st September 2009

3-layer WO3

Dark

Illumination

3-layer WO3

Dark

Illumination

5-layer WO3

Dark

Illumination

5-layer WO3

Dark

Illumination

SD Update

• Solar simulator:– Proposed visit for Wed postponed to Thursday (?)

• WO3: derivatisation with Ir/IrOx: – Ir-oxalate method appears to give permanent “Ir”-

coated surface (by voltammetry)

• WO3: additional data for Ir derivatisation to be analysed

CV in 1M H2SO4 (dark)

-0.10

-0.05

0.00

0.05

0.10

0.15

0.20

0.25

-0.1 0.1 0.3 0.5 0.7 0.9

E (V) vs. Silver Wire

Curr

ent D

ensi

ty (A

/m2 )