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New solar paint turns moist air into clean energy
Scientists have developed a new solar paint that can absorb water vapour and split it to generate hydrogen - the cleanest source of energy.
Melbourne: Scientists have developed a new solar paint that can absorb water vapour and split it to generate hydrogen - the cleanest source of energy.
The paint contains a newly developed compound that acts like silica gel, which is used in sachets to absorb moisture and keep food, medicines and electronics fresh and dry. However, unlike silica gel, the new material, synthetic molybdenum-sulphide, also acts as a semi-conductor and catalyses the splitting of water atoms into hydrogen and oxygen.
"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," said Torben Daeneke, from RMIT University in Melbourne, Australia.
"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," said Daeneke, lead researcher of the study published in the journal ACS Nano.
