Electrocatalysts can help to obtain chemicals from renewable raw materials or to use alternative energy sources. But testing new catalysts brings challenges.
Nanophysics
Feb 14, 2020
0
6
Lithium batteries power smart phones, laptops, and electric bicycles and cars by storing energy in a very small space. This compact design is usually achieved by winding the thin sandwich of battery electrodes into a cylindrical ...
Analytical Chemistry
Feb 7, 2020
0
235
Bubbles are known to influence energy and mass transfer in gas-evolving electrodes. Many electrochemical reactions produce gas that can lead to bubbles forming at the reaction site. Those bubbles can reduce the efficiency ...
Analytical Chemistry
Feb 4, 2020
0
6
New research by engineers at MIT and elsewhere could lead to batteries that can pack more power per pound and last longer, based on the long-sought goal of using pure lithium metal as one of the battery's two electrodes, ...
Materials Science
Feb 3, 2020
1
879
It takes a lot of energy to collect, clean and dispose of contaminated water. Some contaminants, like arsenic, occur in low concentrations, calling for even more energy-intensive selective removal processes.
Polymers
Jan 21, 2020
0
320
Lithium ion batteries often grow needle-like structures between electrodes that can short out the batteries and sometimes cause fires. Now, an international team of researchers has found a way to grow and observe these structures ...
Nanomaterials
Jan 9, 2020
0
387
With the launch of wearable devices and smartphones that require a high capacity of electricity such as foldable phones and 5G phones, the interest in batteries is increasing and various battery types are under development. ...
Materials Science
Dec 11, 2019
0
7
Laboratory experiments and a parabolic flight campaign have enabled an international team of researchers from the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) to gain new insights into water electrolysis, in which hydrogen ...
Materials Science
Dec 9, 2019
0
14
Rechargeable lithium-ion (Li-ion) batteries are a revolutionary technology, found in everything from cellphones to cars. Their ubiquity and role in breaking dependence on fossil fuels earned a trio of researchers this year's ...
Materials Science
Dec 5, 2019
1
167
Our use of battery-operated devices and appliances has been increasing steadily, bringing with it the need for safe, efficient, and high-performing power sources. To this end, a type of electrical energy storage device called ...
Materials Science
Dec 3, 2019
6
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