Recently, a research team led by Professor ZHAO Bangchuan from the Institute of Solid Materials of the Hefei Institutes of Physical Science (HFIPS) synthesized 3D porous honeycomb-like CoN-Ni3N/N-C nanosheets and vanadium nitride (VN) nanobelt arrays via in-situ growth method, respectively, and constructed a high-energy-density flexible supercapacitor device. The result has been published in Advanced Functional Materials.
Credit: Wei Wu s group
WASHINGTON, June 10, 2021 The demand for flexible wearable electronics has spiked with the dramatic growth of smart devices that can exchange data with other devices over the internet with embedded sensors, software, and other technologies. Researchers consequently have focused on exploring flexible energy storage devices, such as flexible supercapacitators (FSCs), that are lightweight and safe and easily integrate with other devices. FSCs have high power density and fast charge and discharge rates.
Printing electronics, manufacturing electronics devices and systems by using conventional printing techniques, has proved to be an economical, simple, and scalable strategy for fabricating FSCs. Traditional micromanufacturing techniques can be expensive and complex.
Powerful, durable, safe, and low production costs: batteries Made in Germany could soon secure a place among the best in the world. This will be realized by including advanced approaches to quality assurance and analytics in production, which are now being developed and tested at Karlsruhe Institute of Technology (KIT). The activities in the AQua battery research cluster are part of the Battery research factory initiated by the Federal Ministry of Education and Research (BMBF).
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IMAGE: The far side of the Moon always faces away from the Earth, making communications from lunar equipment there much more challenging. Fortunately, relay communication satellites can act as a bridge. view more
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Space: Science & Technology
Because of a phenomenon called gravitational locking, the Moon always faces the Earth from the same side. This proved useful in the early lunar landing missions in the 20th century, as there was always a direct line of sight for uninterrupted radiocommunications between Earth ground stations and equipment on the Moon. However, gravitational locking makes exploring the hidden face of the moon the far side much more challenging, because signals cannot be sent directly across the Moon towards Earth.
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Highly dispersed platinum catalysts provide new possibilities for industrial processes, such as the flameless combustion of methane, propane, or carbon monoxide, which has fewer emissions and is more resource efficient and consistent than conventional combustion. In the journal
Angewandte Chemie, a team of researchers reports on which platinum species are active in high-temperature oxidations and what changes they can undergo in the course of the process important prerequisites for the optimization of catalysts.
Individual metal atoms and clusters consisting of only a few metal atoms have interesting catalytic properties determined by the exact nature of the active metal species. Usually, these are highly dispersed and deposited on a support such as zeolite, which is a porous silicate framework structure that also plays a role in the characteristics of a catalyst. Even the smallest change in the active centers can drastically reduce the efficiency of a catalyst. For exam