Category Technology/Electronics

Production of Solar Fuels inches closer with new discovery

This is a ball-and-stick model of the molecular structure of the solar-fuel catalyst developed at Caltech. Blue represents iron atoms; green is nickel; red is oxygen; white is hydrogen. Credit: Caltech

This is a ball-and-stick model of the molecular structure of the solar-fuel catalyst developed at Caltech. Blue represents iron atoms; green is nickel; red is oxygen; white is hydrogen. Credit: Caltech

Research uncovers mechanism behind water-splitting catalyst. Caltech researchers have made a discovery that they say could lead to the economically viable production of solar fuels in the next few years. For years, solar-fuel research has focused on developing catalysts that can split water into hydrogen and oxygen using only sunlight. The resulting hydrogen fuel could be used to power motor vehicles, electrical plants, and fuel cells. Since the only thing produced by burning hydrogen is water, no carbon pollution is added to the atmosphere.

In 2014, researchers in the lab of Harry Gray, Cal...

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Smart Furniture Transforms Spaces in Tiny Apartments into Bedrooms, Work Spaces, or Closets

MIT Media Lab spinout Ori is developing smart robotic furniture that transforms into a bedroom, working or storage area, or large closet — or slides back against the wall — to optimize space in small apartments. Credit: Ori

MIT Media Lab spinout Ori is developing smart robotic furniture that transforms into a bedroom, working or storage area, or large closet — or slides back against the wall — to optimize space in small apartments. Credit: Ori

Imagine living in a cramped studio apartment in a large city—but being able to summon your bed or closet through a mobile app, call forth your desk using voice command, or have everything retract at the push of a button. MIT Media Lab spinout Ori aims to make that type of robotic living a reality. The Boston-based startup is selling smart robotic furniture that transforms into a bedroom, working or storage area, or large closet—or slides back against the wall—to optimize space in small apartments.

Based on years of Media Lab work, Ori’s system is an L-shaped u...

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Scientists discover ‘Chiral Phonons’ – Atomic Rotations in a 2D Semiconductor Crystal

This diagram maps out atomic motion in separate phonon modes. At left ("LO" represents a longitudinal optical mode), selenium atoms exhibit a clockwise rotation while tungsten atoms stand still. At right ("LA" represents a longitudinal acoustic mode), tungsten atoms exhibit a clockwise rotation while selenium atoms rotate in a counterclockwise direction. Credit: Hanyu Zhu, et al.

This diagram maps out atomic motion in separate phonon modes. At left (“LO” represents a longitudinal optical mode), selenium atoms exhibit a clockwise rotation while tungsten atoms stand still. At right (“LA” represents a longitudinal acoustic mode), tungsten atoms exhibit a clockwise rotation while selenium atoms rotate in a counterclockwise direction. Credit: Hanyu Zhu, et al.

Experiments confirm the first chiral phonon that could enable exotic forms of electronics. Berkeley Lab has found the first evidence that a shaking motion in the structure of an atomically thin (2D) material possesses a naturally occurring circular rotation...

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Engineers develop Flexible Lithium Battery for Wearable Electronics

Schematic of the structure and the fabrication process of a spine-like battery. (a) Schematic illustration of bio-inspired design, the vertebrae correspond to thick stacks of electrodes and soft marrow corresponds to unwound part that interconnects all the stacks. (b) the process to fabricate the spine-like battery, multilayers of electrodes were first cut into designed shape, then strips extending out were wound around the backbone to form spine-like structure. Credit: Yuan Yang/Columbia Engineering

Schematic of the structure and the fabrication process of a spine-like battery. (a) Schematic illustration of bio-inspired design, the vertebrae correspond to thick stacks of electrodes and soft marrow corresponds to unwound part that interconnects all the stacks. (b) the process to fabricate the spine-like battery, multilayers of electrodes were first cut into designed shape, then strips extending out were wound around the backbone to form spine-like structure. Credit: Yuan Yang/Columbia Engineering

Shaped like a spine, new design enables remarkable flexibility, high energy density, and stable voltage no matter how it is flexed or twisted...

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