Storing solar energy as hydrogen is a promising way for developing comprehensive renewable energy systems. To accomplish this, traditional solar panels can be used to generate an electrical current that splits water molecules into oxygen and hydrogen, the latter being considered a form of solar fuel. However, the cost of producing efficient solar panels makes water-splitting technologies too expensive to commercialize. EPFL scientists have now developed a simple, unconventional method to fabricate high-quality, efficient solar panels for direct solar hydrogen production with low cost. The work is published in Nature Communications. Many different materials have been considered for use in direct solar-to-hydrogen conversion technologies but "2-D materials" have recently been identified as promising candidates. In general these materials—which famously include graphene—have extraordinary electronic properties. However, harvesting usable amounts of solar energy requires large areas of solar panels, and it is notoriously difficult and expensive to fabricate thin films of 2-D materials at such a scale and maintain good performance. Kevin Sivula and colleagues at EPFL addressed this problem with an innovative and cheap method that uses the boundary between two non-mixing liquids. The researchers focused on one of the best 2-D materials for solar water splitting, called "tungsten diselenide". Past studies have shown that this material has a great efficiency for converting solar energy directly into hydrogen fuel while also being highly stable. Cont'd...
Talking Frontier Observatory for Research in Geothermal Energy (FORGE) with Rachel Dahl and James Faulds
The U.S. Department of Energy (DOE) selected a site near Fallon for its Frontier Observatory for Research in Geothermal Energy (FORGE), and $2 million in federal funds to launch the ground-breaking research project.
Jeremy Thomas for Inside Bay Area News: In a christening hailed as a key moment in the effort to harness the sun's energy to create fuel, Lawrence Berkeley Lab officials on Tuesday unveiled a $59 million Solar Energy Research Center. Named after former Energy Department Secretary and Lab Director Steven Chu, the 40,000-square-foot Chu Hall will be a place of world-changing research in producing cheaper, more efficient renewable energy to replace fossil fuels, said Chu, who was honored for inspiring the mission. "This is one of the most important problems that science, technology and innovation really need to solve," Chu said. "It's a very big deal. ... We simply need to save the world, and it's going to be science that's going to be at the heart of that solution." The facility will be home to the Berkeley hub of the Joint Center for Artificial Photosynthesis, a Department of Energy-funded collaboration led by the California Institute of Technology that is attempting to create solar fuel as plants do by using sunlight and other catalysts to split water into hydrogen and oxygen gas and convert carbon dioxide into liquid fuels such as methanol and ethanol. The byproduct of producing such a fuel would be oxygen.
New Material Opens the Door to Low-Cost, Environmentally Friendly Energy Use
Although individuals and companies have been leveraging distributed generation for decades, solar electric systems seem to be igniting a whole new level of interest among large and midsize businesses.
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