26 Jun '17, 8am

Osaka team develops new solar-to-hydrogen catalyst that uses broader spectrum of light

Osaka team develops new solar-to-hydrogen catalyst that uses broader spectrum of light 26 June 2017 A team at Osaka University in Japan has developed a new material based on gold and black phosphorus to harvest a broader spectrum of sunlight for water-splitting to produce hydrogen. The three-part composite maximizes both absorbing light and its efficiency for water splitting. The core is a traditional semiconductor—lanthanum titanium oxide (LTO). The LTO surface is partly coated with gold nanoparticles. Finally, the gold-covered LTO is mixed with ultrathin sheets of the element black phosphorus (BP), which acts as a light absorber. The optimum H2 production rates of BP-Au/LTO were about 0.74 and 0.30 mmol g-1 h-1 at wavelengths longer than 420 nm and 780 nm, respectively. A paper on the team’s work is published in the journal Angewandte Chemie: International Edition. Altho...

Full article: http://www.greencarcongress.com/2017/06/20170626-osaka.html

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