The sun is a clean and inexhaustible source of energy, with the potential to provide a sustainable answer to all future energy supply demands. There’s just one outstanding problem: the sun doesn’t always shine and its energy is hard to store. For the first time, researchers at the Paul Scherrer Institute PSI and the ETH Zurich have unveiled a chemical process that uses the sun’s thermal energy to convert carbon dioxide and water directly into high-energy fuels: a procedure developed on the basis of a new material combination of cerium oxide and rhodium. This discovery marks a significant step towards the chemical storage of solar energy. The researchers published their findings in the research journal Energy and Environmental Science ._ Paul Scherrer Institute (PSI) by Uta Deffke
Scientists at TU Wien (Vienna) have now developed a new concept: By combining highly specialised new materials, they have managed to combine high temperature photovoltaics with an electrochemical cell. Ultraviolet light can be directly used to pump oxygen ions through a solid oxide electrolyte. The energy of the UV light is stored chemically. In the future, this method could also be used to split water into hydrogen and oxygen.__TU Wien
In recent years, proponents of clean energy have taken heart in the falling prices of solar and wind power, hoping they will drive an energy revolution. But a new study co-authored by an MIT professor suggests otherwise: Technology-driven cost reductions in fossil fuels will lead us to continue using all the oil, gas, and coal we can, unless governments pass new taxes on carbon emissions. __MIT News
– Συνδυάζοντας βιοσυμβατές φωτοευαίσθητες νανοσυρμάτινες συστοιχίες με επιλε-γμένους πληθυσμούς βακτηριδίων, το νέο σύστημα τεχνητής φωτοσύνθεσης καθίσταται διπλά επωφελές για το περιβάλλον: ηλιακά τροφοδοτούμενη »πράσινη» χημεία, με χρήση απομονωμένου διοξειδίου του άνθρακα.
– Berkeley Lab Researchers Perform Solar-powered Green Chemistry with Captured CO2