Brookhaven National Laboratory chemists have designed a new ‘single-site’ catalyst that speeds up the rate of a key step in artificial photosynthesis. It’s the first to match the efficiency of the catalytic sites that drive this reaction in nature and could greatly improve the potential for making efficient solar-to-fuel conversion devices. The chemistry is about […]

Scientists have greatly improved the operational stability of perovskite solar cells. The devices lost less than 5 percent performance when subjected to a crucial accelerated aging test during which they were exposed for more than 1,000 hours to full sunlight at 60° C. The Ecole Polytechnique Fédérale de Lausanne (EPFL) team introduced cuprous thiocyanate protected […]

St John’s College, University of Cambridge, researchers have quantified the astonishingly high speeds at which future perovskite solar cells would have to operate in order to stretch what are presently seen as natural limits on their energy conversion efficiency. The study investigating perovskite photovoltaic suggests that these could achieve unprecedented levels of super-efficiency. But to […]

Lawrence Berkeley National Laboratory (LBNL) scientists have harnessed the power of photosynthesis to convert carbon dioxide into fuels and alcohols at efficiencies far greater than plants. The achievement marks a significant advance in the effort to move toward sustainable sources of fuel. Many systems have successfully reduced carbon dioxide to chemical and fuel precursors, such […]

Fuzhou University in China scientists report the synthesis of a macroscopic aerogel from carbonitride nanomaterials which is an excellent catalyst for the water-splitting reaction under visible-light irradiation. The study adds new opportunities to the material properties of melamine-derived carbonitrides. The study has been published in the journal Angewandte Chemie. Melamine can be polymerized with formaldehyde […]

keep looking »
css.php