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Australian Researchers Make Solar Paint

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Paint with MoScatalyst offers 'endless' energy by turning water vapour into hydrogen and oxygen

Australian researchers have developed a solar paint that can absorb water vapour and split it to generate hydrogen - the cleanest source of energy. The paint uses the semiconductor MoS2 as a catalyst.

The research has been published as 'Surface Water Dependent Properties of Sulfur Rich Molybdenum Sulphides - Electrolyteless Gas Phase Water Splitting' in ACS Nano, a journal of the American Chemical Society.

Lead researcher Torben Daeneke, from RMIT University in Melbourne, Australia, said: "We found that mixing the compound with titanium oxide particles leads to a sunlight-absorbing paint that produces hydrogen fuel from solar energy and moist air.

"Titanium oxide is the white pigment that is already commonly used in wall paint, meaning that the simple addition of the new material can convert a brick wall into energy harvesting and fuel production real estate.

"Our new development has a big range of advantages," he said. "There's no need for clean or filtered water to feed the system. Any place that has water vapour in the air, even remote areas far from water, can produce fuel."

His colleague, Kourosh Kalantar-zadeh, said hydrogen was the cleanest source of energy and could be used in fuel cells as well as conventional combustion engines as an alternative to fossil fuels.

"This system can also be used in very dry but hot climates near oceans. The sea water is evaporated by the hot sunlight and the vapour can then be absorbed to produce fuel.

"This is an extraordinary concept - making fuel from the sun and water vapour in the air."


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