Search results for "hydrogen"

Engineers at the University of California San Diego have developed a flexible wearable sensor that can accurately measure a person's blood alcohol level from sweat and transmit the data wirelessly to a laptop, smartphone or other mobile device. The device can be worn on the skin and could be used by doctors and police officers for continuous, non-invasive and real-time monitoring of blood alcohol content.

It is now feasible to make a prized material for spintronic devices and semiconductors - monolayer graphene nanoribbons withzigzag edges.Miniscule ribbons of graphene are highly sought-after building blocks for semiconductor devices because of their predicted electronic properties. But making these nanostructures has remained a challenge. Now, a team of researchers from China and Japan have devised a method to make the structures in the lab. Thei...

Detecting noxious gases, such as those released from power plants and other sources that can harm the environment, is something graphene does well, but it could be even better. Researchers discovered a way to significantly improve its performance by peppering high-quality graphene sheets with boron impurities. Compared to pristine graphene, these modified sheets, a.k.a. boron-doped graphene, were 27 times more sensitive at detecting nitrogen diox...

Researchers at the University of Illinois at Chicago have engineered a potentially game-changing solar cell that cheaply and efficiently converts atmospheric carbon dioxide directly into usable hydrocarbon fuel, using only sunlight for energy.The finding is reported in Science and was funded by the National Science Foundation and the U.S. Department of Energy. A provisional patent application has been filed.

Researchers, led by Carnegie's Viktor Struzhkin, have experimentally produced a class of materials blending hydrogen with sodium that could alter the superconductivity landscape and could be used for hydrogen-fuel cell storage. The research is published inNature Communications.It had been predicted that certain hydrogen-rich compounds consisting of multiple atoms of hydrogen with alkali metals like lithium, potassium or sodium, could provide a ch...

A team of scientists led by the Department of Energy's Oak Ridge National Laboratory has developed a novel way to produce 2D nanosheets by separating bulk materials with nontoxic liquid nitrogen. The environmentally friendly process generates a 20-fold increase in surface area per sheet, which could expand the nanomaterials' commercial applications."It's actually a very simple procedure," said ORNL chemist Huiyuan Zhu, who co-authored a study pub...

The giant CFRP rotor blade of a wind turbine located in front of the Messe Augsburg premises is already being touted as one of the trade fair highlights of this year. EXPERIENCE COMPOSITES – powered by JEC group is dedicating a separate showcase to the area of fibre composite applications in wind power generation.

It has been a very hotly debated topic in recent years. Could existing EVs, despite their limited driving range, bring about a meaningful reduction in the greenhouse-gas emissions that are causing global climate change? Researchers at MIT have just completed the most comprehensive study yet to address this question and have reached a clear conclusion: Yes, they can.

When you think of Germany, what do you think of? Most people will usually say football, beer and BMWs. What most people won't say is medical technology (medtech). Despite that, Germany’s medtech sector is by far the largest in Europe and the third largest in the world. It’s home to some of the largest OEMs and presents a wide range of opportunities for technology experts.

Researchers at Rice University's Laboratory for Nanophotonics have unveiled a method for uniting light-capturing photonic nanomaterials and high-efficiency metal catalysts.Each year, chemical producers spend billions of dollars on metal catalysts, materials that spur or speed up chemical reactions. Catalysts are used to produce trillions of dollars worth of chemical products. Unfortunately, most catalysts only work at high temperatures or high pr...