Showing 20 articles starting at article 321

< Previous 20 articles        Next 20 articles >

Categories: Energy: Alternative Fuels, Energy: Fossil Fuels

Return to the site home page

     (via sciencedaily.com) 

A new pathway to creating durable, efficient perovskite photovoltaics at industrial scale has been demonstrated through the first effective use of lead acetate as a precursor in making formamidinium-caesium perovskite solar cells.

     (via sciencedaily.com) 

Researchers report a new world record for tandem solar cells consisting of a silicon bottom cell and a perovskite top cell. The new tandem solar cell converts 32.5 percent of the incident solar radiation into electrical energy.

     (via sciencedaily.com) 

Researchers have shown how nitrogen fertilizer could be produced more sustainably. This is necessary not only to protect the climate, but also to reduce dependence on imported natural gas and to increase food security.

     (via sciencedaily.com) 

Researchers analyzed the effects of decarbonization strategies by linking global resource inventories with demographic systems to generate a matrix showing the risks and benefits. The research suggests that increased demand for energy transition metals (ETMs) could be more disruptive to some communities than winding back production of thermal coal. The team calculated that while a complete phase-out of coal could disrupt mine-town systems with a minimum of 33.5 million people, an additional 115.7 million would be at risk from disruption by ETMs.

     (via sciencedaily.com) 

Researchers have discovered an important in-situ protonation process that the photodynamics and separation of charge carriers in a photocatalyst, leading to efficient hydrogen generation from water using visible solar light. The process is enabled in an interstitial phosphorus doped carbon nitride structure, with only earth-abundant non-metallic elements, for its cost-effectiveness and high potential for practical applications.

     (via sciencedaily.com) 

Though plants can serve as a source of food, oxygen and décor, they're not often considered to be a good source of electricity. But by collecting electrons naturally transported within plant cells, scientists can generate electricity as part of a 'green,' biological solar cell. Now, researchers have used a succulent plant to create a living 'bio-solar cell' that runs on photosynthesis.

     (via sciencedaily.com) 

Engineers have used sound waves to boost production of green hydrogen by 14 times, through electrolysis to split water.

     (via sciencedaily.com) 

MIT researchers developed a scalable fabrication technique to produce ultrathin, flexible, durable, lightweight solar cells that can be stuck to any surface. Glued to high-strength fabric, the solar cells are only one-hundredth the weight of conventional cells while producing about 18 times more power-per-kilogram.

     (via sciencedaily.com) 

Clean, sustainable energy solutions are essential to meet the ever-increasing energy demands of the human population. High efficiency solar cells are promising candidates to reduce carbon emissions and achieve carbon neutrality. In this regard, solution-processed copper indium gallium sulfur diselenide solar cells (CIGSSe) solar cells have generated significant interest owing to their excellent photovoltaic properties, such as high absorption of visible light, stability, and tunable bandgap. However, large scale, practical applications are limited by a two-fold challenge.

     (via sciencedaily.com) 

Researchers have demonstrated a new way to create stable perovskite solar cells, with fewer defects and the potential to finally rival silicon's durability.

     (via sciencedaily.com) 

A new study finds that the health benefits associated with wind power could more than quadruple if operators turned down output from the most polluting fossil-fuel-based power plants when energy from wind is available. However, compared to wealthier communities, disadvantaged communities would reap a smaller share of these benefits.

     (via sciencedaily.com) 

Tin sulfide (SnS) solar cells have shown immense promise in the rush to develop more environmentally friendly thin-film solar cells. Yet for years SnS solar cells have struggled to achieve a high conversion efficiency. To overcome this, a SnS interface exhibiting large band bending was necessary, something a research group has recently achieved.

     (via sciencedaily.com) 

Too much sun and too much heat can reduce the efficiency of photovoltaics. A solar farm with optimally spaced panels facing the correct direction could cool itself through convection using the surrounding wind. Researchers explored how to exploit the geometry of solar farms to enhance natural cooling mechanisms.

     (via sciencedaily.com) 

An interdisciplinary team of researchers has developed a potential breakthrough in green aviation: a recipe for a net-zero fuel for planes that will pull carbon dioxide (CO2) out of the air.

     (via sciencedaily.com) 

A 'simple' tweak to perovskite solar cells during the fabrication stage could help to unlock the untold potential of the renewable energy source, according to new research.

     (via sciencedaily.com) 

A new method for describing energy loss in organic solar cells has paved the way for building better and more efficient devices.

     (via sciencedaily.com) 

The development of offshore wind energy is expanding globally, with the potential to be an important source of clean renewable energy. Yet offshore wind farms pose significant risks to seabirds and other marine wildlife. A new study outlines a framework for addressing the impacts of offshore wind farms on marine bird populations and highlights conservation strategies that could potentially more than offset those impacts.

     (via sciencedaily.com) 

Catalysts are of utmost relevance for the production of chemicals and energy storage with hydrogen. Researchers have now discovered that the formation of bubbles in the pores of a catalyst can be essential for its activity. Their findings help to optimize catalyst materials for reactions in which gases are formed from liquids -- and which play a central role in a future green hydrogen economy.

     (via sciencedaily.com) 

A team of scientists has developed a new characterization tool that allowed the scientists to gain unique insight into a possible alternative material for solar cells.

     (via sciencedaily.com) 

New research shows a pathway toward full decarbonization of U.S. aviation fuel use by substituting conventional jet fuel with sustainably produced biofuels. The study found that planting the grass miscanthus on 23.2 million hectares of existing marginal agricultural lands -- land that often lays fallow or is poor in soil quality -- across the United States would provide enough biomass feedstock to meet the liquid fuel demands of the U.S. aviation sector fully from biofuels, an amount expected to reach 30 billion gallons/year by 2040.