Plants use photosynthesis to convert carbon dioxide and water into sugars and oxygen. The process starts in a cluster of manganese, calcium and oxygen atoms at the heart of a protein complex called photosystem II, which splits ...
Materials Science
Aug 8, 2014
2
0
Vehicles powered by hydrogen fuel cells generate no exhaust emissions other than clean water vapor. Unfortunately, producing and distributing large quantities of hydrogen gas is impossible with current infrastructures. Researchers ...
Materials Science
Jul 7, 2011
1
0
(PhysOrg.com) -- New results by scientists at Umeľ University, Sweden, show that not only water but also alcohol solvents can be inserted to expand the structure of graphite oxide under high pressure conditions. The ...
Nanomaterials
Dec 21, 2009
2
1
Researchers at The University of Manchester's National Graphene Institute (NGI) have achieved a long-sought-after objective of electrically controlling water flow through membranes, as reported in Nature.
Nanomaterials
Jul 12, 2018
0
52
Nanotechnology refers to a broad range of tools, techniques and applications that simply involve particles on the approximate size scale of a few to hundreds of nanometers in diameter. Particles of this size have some unique ...
Nanomaterials
Jul 29, 2010
0
1
(PhysOrg.com) -- Amphiphilic molecules, which have one water-friendly (hydrophilic) end and one water-repellant (hydrophobic) end, spontaneously aggregate in aqueous solutions to make superstructures like capsules or bilayers. ...
Polymers
Mar 6, 2009
0
0
Researchers have layered different mineral forms of titanium oxide on top of one another to improve perovskite-type solar cell efficiency by one-sixth. The titanium oxide layer was better able to transport electrons from ...
Nanomaterials
Mar 1, 2019
0
20
From the splendorous red hues in the Grand Canyon to the mundane rust attacking a neglected bicycle, iron hydroxides are all around us. As a matter of fact, they are just as common as quartz, which is the most widely distributed ...
Earth Sciences
Nov 25, 2020
0
24
EPFL scientists are generating oxygen from sunlight, water and semiconducting polymers. They present a promising way towards economical and scalable solar fuel production.
Polymers
Jun 24, 2021
0
90
In July 2015, U.S. Environmental Protection Agency head Gina McCarthy was being grilled by lawmakers over President Obama's Clean Power Plan requiring states to limit carbon emissions, when she was asked, "What percentage ...
Earth Sciences
Aug 12, 2019
2
46
