April 21, 2021This work examines nanocrystalline porous silicon (PSi) prepared by electrochemical etching of p type silicon wafers.
Category Archives: Environment
Improving Sustainable Hydrogen Production From Green Waste
September 16, 2021Bio-hydrogen production via dark fermentation of low-value waste is a potent and simple mean of recovering energy, maximizing the harvesting of reducing equivalents to produce the cleanest fuel amongst renewables. Here, an alternative application of green wastes, low-value compost and intermediate products (partially composted but unsuitable for completing … Continue reading
Green Hydrogen, Spaceship Earth, and a Circular Economy
December 2020Based on a review of the literature, researchers synthesize some aspects which represent in their understanding the essence of the circular economy concept. While in no way intended to be absolute, definitive and final, these aspects represent a level of understanding of the concept at this specific moment.
Societal Consequences to the Transition to Green Hydrogen
July 15, 2021The need for green hydrogen is likely to require massive expansion of renewable energy plants. Researchers have identified a gap between political action, technological developments, and expertise from the social sciences and humanities as the world transitions from fossil fuels to green hydrogen. They argue that the respective … Continue reading
Solar Energy As Natural Resource Utilization In Urban Areas
January 1, 2007This research evaluates urban areas’ potential to utilize rooftop solar cells as power plants. They are environmental-friendly and potentially viable electrical generators.
Moisture Resistance In Perovskite Solar Cells Attributed To A Water-Splitting Layer
January 4, 2021Researchers showed that the engineering of a hole extraction layer with possible water-splitting additives could be a viable strategy to reduce the impact of moisture in perovskite devices.
Moisture-Tolerant 3D Perovskite Solar Cells
September 23, 2021Researchers studied three different alkyl chain length organic cation-based 2D perovskite coatings for 3D perovskites. The 2D perovskite incorporated solar cells showed significant improvement in solar cell stability with limited compromise in solar cell efficiency. The longest alkyl chain length sample showed only a 20% drop in power … Continue reading
Progress Of Perovskite Solar Cells: 29% Efficient 2020-2021
July 7, 2021This review summarizes the main progress of Perovskite Solar Cells (PSCs) in 2020 and 2021 from the aspects of efficiency, stability, perovskite-based tandem devices, and lead-free PSCs.
A Prototype Water Electrolysis System As An Alternative To Produce Hydrogen
November 4, 2020The objective of developing a prototype or scale model of production of hydrogen and oxygen through the electrolysis process of water is to generate an alternative with a sustainable approach, which proposes the supply or source of energy initially with a direct current power source replaceable in the … Continue reading
Enhancing Hydrogen Evolution Electrocatalytic Performance in Neutral Media via Nitrogen and Iron Phosphide Interactions
May 6, 2021Researchers developed a facile strategy to stabilize the structure of metal phosphides during hydrogen evolution reaction (HER) and promote intrinsic catalytic activity by introducing N atoms into the structure of the FeP material as HER electrocatalysts for neutral media.