Chemistry in the News
Key to manufacturing more efficient solar cells
Wed, 28 Sep 2016 15:11:19 EDT
In a discovery that could have profound implications for future energy policy, scientists have demonstrated it is possible to manufacture solar cells that are far more efficient than existing silicon energy cells by using a new kind of material, a development that could help reduce fossil fuel consumption.
Traveling through the body with graphene
Wed, 28 Sep 2016 13:59:07 EDT
Researchers have succeeded to place a layer of graphene on top of a stable fatty lipid monolayer, for the first time. Surrounded by a protective shell of lipids graphene could enter the body and function as a versatile sensor. The results are the first step towards such a shell, say authors of a new report.
Study of North Atlantic Ocean reveals decline of leaded petrol emissions
Wed, 28 Sep 2016 10:16:47 EDT
A new study of lead pollution in the North Atlantic provides strong evidence that leaded petrol emissions have declined over the past few decades. For the first time in around 40 years, scientists have detected lead from natural sources in samples from this ocean. In the intervening period, the proportion of lead in the ocean from humanmade sources, most importantly leaded petrol emissions, had been so high that it was not possible to detect any lead from natural sources.
Toward 'greener,' inexpensive solar cells
Wed, 28 Sep 2016 09:22:19 EDT
Solar panels are proliferating across the globe to help reduce the world's dependency on fossil fuels. But conventional panels are not without environmental costs, too. Now scientists report a new advance toward more practical, "greener" solar cells made with inexpensive halide perovskite materials. They have developed low-bandgap perovskite solar cells with a reduced lead content and a power conversion efficiency of 15 percent.
The ultimate radar detector
Tue, 27 Sep 2016 12:34:21 EDT
A new technique for exploring the physics and chemistry of a gas interacting with molecules on the surface of a liquid has been developed by researchers. The group originally envisioned the technique because it's impossible to overestimate the importance of understanding surface chemistry. For instance, ozone depletion in the atmosphere occurs because of chemical reactions of hydrochloric acid on the surface of ice crystals and aerosols in the upper atmosphere. Interstellar chemistry takes place on the surface of tiny grains of dust. And, any time industrial chemists want to react a gas with a liquid or solid, the secret is getting the gas to touch the surface of whatever they want the gas to react with.