Category Chemistry/Nanotechnology

First 3D-Printed, Defect-free Tungsten Components Withstand Extreme Temperatures

First 3D-printed, defect-free tungsten components withstand extreme temperatures
ORNL researchers used electron-beam additive manufacturing to 3D-print the first complex, defect-free tungsten parts with complex geometries. Research was performed at DOE’s Manufacturing Demonstration Facility at ORNL. The MDF, supported by DOE’s Advanced Materials and Manufacturing Technologies Office, is a nationwide consortium of collaborators working to innovate, inspire and catalyze the transformation of U.S. manufacturing. Credit: Michaela Bluedorn/ORNL, U.S. Dept. of Energy

Researchers at Oak Ridge National Laboratory used additive manufacturing to produce the first defect-free complex tungsten parts for use in extreme environments. The accomplishment could have positive implications for clean-energy technologies such as fusion energy.

Tungsten has the highest melting po...

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Charge your Laptop in a Minute? Supercapacitors can help; new research offers clues

Imagine if your dead laptop or phone could charge in a minute or if an electric car could be fully powered in 10 minutes. While not possible yet, new research by a team of CU Boulder scientists could potentially lead to such advances.

Published today in the Proceedings of the National Academy of Sciences, researchers in Ankur Gupta’s lab discovered how ions, move within a complex network of minuscule pores. The breakthrough could lead to the development of more efficient energy storage devices, such as supercapacitors, said Gupta, an assistant professor of chemical and biological engineering.

“Given the critical role of energy in the future of the planet, I felt inspired to apply my chemical engineering knowledge to advancing energy storage devices,” Gupta said...

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Renewable Grid: Recovering Electricity from Heat Storage hits 44% Efficiency

Renewable grid: Recovering electricity from heat storage hits 44% efficiency
To measure the power produced by his photovoltaic cells, Roy-Layinde holds a heat source held over the photovoltaic cell, which emits the infrared radiation that the cell converts into electricity. Wires connected to the photovoltaic cell run the electricity to a sensor that reads the voltage and amperage. Image credit: Brenda Ahearn, Michigan Engineering

Closing in on the theoretical maximum efficiency, devices for turning heat into electricity are edging closer to being practical for use on the grid, according to University of Michigan research.

Heat batteries could store intermittent renewable energy during peak production hours, relying on a thermal version of solar cells to convert it into electricity later.

“As we include higher fractions of renewables on the grid to reach ...

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Rubber-like Stretchable Energy Storage Device Fabricated with Laser Precision

Scientists use laser ablation technology to develop a deformable micro-supercapacitor. Professor Jin Kon Kim and Dr. Keon-Woo Kim from the Department of Chemical Engineering at Pohang University of Science and Technology (POSTECH), in collaboration with Dr. Chanwoo Yang and Researcher Seong Ju Park from the Korea Institute of Industrial Technology (KITECH), have achieved a significant breakthrough in developing a small-scale energy storage device capable of stretching, twisting, folding, and wrinkling. Their research has been published in the electronic engineering journal, npj Flexible Electronics.

The advent of wearable technology has brought with it a pressing need for energy storage solutions that can keep pace with the flexibility and stretchability of soft electronic devices.

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