Lakes store huge amounts of methane. In a new study, environmental scientists at the University of Basel offer suggestions for how it can be extracted and used as an energy source in the form of methanol.
A team of Nanyang Technological University, Singapore (NTU Singapore) researchers has designed a 'smart' device to harvest daylight and relay it to underground spaces, reducing the need to draw on traditional energy sources for lighting.
A new study in the journal Risk Analysis suggests that countries representing more than 80 percent of potential growth in low-carbon electricity demand--in Asia, the Middle East, and North Africa--may lack the economic or institutional quality to deploy nuclear power to meet their energy needs. The authors suggest that if nuclear power is to safely expand its role in mitigating climate change, countries need to radically improve their ability to manage the technology.
While investigating gas hydrate deposits in the western Black Sea, a team of scientists from GEOMAR, Kiel and MARUM, Bremen made surprising discoveries. Contrary to previous findings and theories, the scientists found free methane gas in layers where it should actually not appear. The authors conclude that the gas hydrate system in the deep-sea fan of the Danube continues to adapt due to climate changes since the last glacial maximum.
In order to enable large-scale hydrogen production using solar energy, particulate photocatalysts are being researched as a simple and cost-effective solution to splitting water into hydrogen and oxygen. It is necessary to develop a photocatalyst that can efficiently use visible light, which accounts for a large part of solar energy, in the water decomposition reaction. Barium tantalum oxynitride (BaTaO2N) is an oxynitride semiconductor material that absorbs visible light and is capable of decomposing water.
IIASA researchers have used Sentinel 1 satellite imagery from the European Space Agency to produce a map of the extent and year of detection of oil palm plantations in Indonesia, Malaysia, and Thailand that will help policymakers and other stakeholders understand trends in oil palm expansion while also providing an accurate map for landscape-level planning.
As biofuels continue to present challenges, microalgae are gaining momentum as a biofuel energy crop. In the Journal of Renewable and Sustainable Energy, researchers show how a combination of monochromatic red and blue LED illumination on one type of microalga can enhance its growth and increase the biosynthesis of critical components, such as lipids, for microalgae feedstock development. The researchers focused on Dunaliella salina, typically extracted from sea salt fields and found in salt lakes.
Science Snapshots From Berkeley Lab: India's Ambitious Clean Energy Goals, a Secret Pathway to Harnessing the Sun for Clean Energy, and a Supersmart Gas Sensor for Asthmatics
Scientists at MIPT have found a possible explanation for the anomalously fast release of gas from nuclear fuel. Supercomputer simulations have uncovered an unexpected mechanism for accelerating the escape of gas bubbles from the uranium dioxide crystal matrix to the surface. The result points the way to eliminate the paradoxical discrepancy of several orders of magnitude between existing theoretical models and experimental results. The paper was published in the Journal of Nuclear Materials.
Kanazawa University led-researchers Assistant Professor Md. Shahiduzzaman and Professor Tetsuya Taima, in collaboration with Tokai University, The Hong Kong Polytechnique University (Hong Kong), Waseda University, The National University of Malaysia (Malaysia), and Stanford University (USA) developed a perovskite solar cell that optimized light incoupling, light trapping, and other essential properties for maximum energy conversion efficiency. With further development, their design--which is compatible with industrial production--may exceed commercial silicon-based solar cells' performance.