Cesium-treated tungsten oxide photocatalyst

Cycle

Cesium-treated tungsten oxide photocatalyst
« on March 31st, 2015, 10:45 AM »Last edited on March 31st, 2015, 10:57 AM by Cycle
http://www.aist.go.jp/aist_e/latest_research/2010/20100517/20100517.html
"The quantum yield of the new photocatalyst is 19% under visible light of wavelength 420 nm and is approximately 50 times the previously reported values (0.4%)*."

Just thought I'd throw this out for anyone looking at photocatalysis as a means of hydrogen production.

Another tungsten oddity, photo-luminescence of WS2:
http://pubs.acs.org/doi/abs/10.1021/nl3026357
"The edges of WS2 monolayers exhibit PL signals with extraordinary intensity, around 25 times stronger than that at the platelet’s center."

Looks like a pyramid-shaped atomically-small WS2 layer creates spontaneous room temperature photo-luminescence... perhaps something we could use to inject photons from the WS2 layers into water to assist dissociation.