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Nanotechnology Now - Press Release: Better solutions for making hydrogen may lie just at the surface


Nanotechnology Now
Home > Press > Better solutions for making hydrogen may lie just at the surface
The unique interactions between perovskite oxide, its changing surface layer, and iron species that are active toward the OER paves a new path for the design of active and stable materials, bringing us one step closer to efficient and affordable green hydrogen production.
CREDIT
Argonne National Laboratory
Abstract:
A clean energy future propelled by hydrogen fuel depends on figuring out how to reliably and efficiently split water. That s because, even though hydrogen is abundant, it must be derived from another substance that contains it and today, that substance is often methane gas. Scientists are seeking ways to isolate this energy-carrying element without using fossil fuels. That would pave the way for hydrogen-fueled cars, for example, that emit only water and warm air at the tailpipe. ....

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Nanotechnology Now - Press Release: CEA-Leti Envisions Widespread Use of LiDAR Systems Based on Integrated Optical Phased Arrays (OPAs): OPAs with Solid-State Beam Steering Can Reduce the Cost and Size of LiDAR Systems & Improve Performance; Results Reported at Photonics West 2021


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Home > Press > CEA-Leti Envisions Widespread Use of LiDAR Systems Based on Integrated Optical Phased Arrays (OPAs): OPAs with Solid-State Beam Steering Can Reduce the Cost and Size of LiDAR Systems & Improve Performance; Results Reported at Photonics West 2021
Abstract:
Taking a critical step toward developing LiDAR systems for widespread commercial applications, CEA-Leti has developed genetic algorithms to calibrate high-channel-count optical phased arrays (OPAs), as well as an advanced measurement setup enabling wafer-scale OPA characterization.
CEA-Leti Envisions Widespread Use of LiDAR Systems Based on Integrated Optical Phased Arrays (OPAs): OPAs with Solid-State Beam Steering Can Reduce the Cost and Size of LiDAR Systems & Improve Performance; Results Reported at Photonics West 2021 ....

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Nanotechnology Now - Press Release: Instrument at BESSY II shows how light activates MoS2 layers to become catalysts


Nanotechnology Now
Home > Press > Instrument at BESSY II shows how light activates MoS2 layers to become catalysts
A new instrument at BESSY II can be used to study molybdenum-sulfide thin films that are of interest as catalysts for solar hydrogen production. A light pulse triggers a phase transition from the semiconducting to the metallic phase and thus enhances the catalytic activity.
CREDIT
Martin Künsting /HZB
Abstract:
MoS2 thin films of superposed alternating layers of molybdenum and sulfur atoms form a two-dimensional semiconducting surface. However, even a surprisingly low-intensity blue light pulse is enough to alter the properties of the surface and make it metallic. This has now been demonstrated by a team at BESSY II. ....

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