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    New Hydrocarbon Fuel Cells with High Efficiency and Low Cost

    July 18, 2017, Categories  Chemistry/Nanotechnology, Technology/Electronics

    This is the exsolution of a B-site cation with oxygen from layered perovskite in a reducing atmosphere. Credit: UNIST

    This is the exsolution of a B-site cation with oxygen from layered perovskite in a reducing atmosphere. Credit: UNIST

    The commercialization of the ‘natural gas fuel cell’ has finally come to the fore, thanks to the recent development of electrode materials that maintain long-term stability in hydrocarbon fuels. Advantage of using this material includes that it uses internal transition metal as a further catalyst in a fuel cell operating condition. The collaborative results, published online in the June issue of the journal Nature Communications, have emerged as the promising candidate for the next generation direct hydrocarbon solid oxide fuel cells (SOFCs) technology.

    A solid oxide fuel cell (SOFC) is an electrochemical conversion device that produces electricity by oxidizing a fuel...

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    Cosmic ‘Dust factory’ reveals clues to how Stars are Born

    July 10, 2017, Categories  Astronomy/Space

    This artist's illustration of Supernova 1987A reveals the cold, inner regions of the exploded star's remnants (red) where tremendous amounts of dust were detected and imaged by ALMA. This inner region is contrasted with the outer shell (blue), where the energy from the supernova is colliding (green) with the envelope of gas ejected from the star prior to its powerful detonation. Credit: A. Angelich; NRAO/AUI/NSF

    This artist’s illustration of Supernova 1987A reveals the cold, inner regions of the exploded star’s remnants (red) where tremendous amounts of dust were detected and imaged by ALMA. This inner region is contrasted with the outer shell (blue), where the energy from the supernova is colliding (green) with the envelope of gas ejected from the star prior to its powerful detonation. Credit: A. Angelich; NRAO/AUI/NSF

    A group of scientists led by researchers at Cardiff University have discovered a rich inventory of molecules at the centre of an exploded star for the very first time. 2 previously undetected molecules, formylium (HCO+) and sulphur monoxide (SO), were found in the cooling aftermath of Supernova 1987A, 163,000 light years away in a nearby neighbour of our own Milky Way galaxy...

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    Dramatic Stellar fireworks of Star Birth

    April 8, 2017, Categories  Astronomy/Space

    Astronomers captured these dramatic images of the remains of a 500-year-old explosion as they explored the firework-like debris from the birth of a group of massive stars, demonstrating that star formation can be a violent and explosive process too. The colors in the ALMA data represent the relative Doppler shifting of the millimeter-wavelength light emitted by carbon monoxide gas. The blue color in the ALMA data represents gas approaching at the highest speeds; the red color is from gas moving toward us more slowly. The background image includes optical and near-infrared imaging from both the Gemini South and ESO Very Large Telescope. The famous Trapezium Cluster of hot young stars appears towards the bottom of this image. The ALMA data do not cover the full image shown here. Credit: ALMA (ESO/NAOJ/NRAO), J. Bally/H. Drass et al

    Astronomers captured these dramatic images of the remains of a 500-year-old explosion as they explored the firework-like debris from the birth of a group of massive stars, demonstrating that star formation can be a violent and explosive process too. The colors in the ALMA data represent the relative Doppler shifting of the millimeter-wavelength light emitted by carbon monoxide gas. The blue color in the ALMA data represents gas approaching at the highest speeds; the red color is from gas moving toward us more slowly. The background image includes optical and near-infrared imaging from both the Gemini South and ESO Very Large Telescope. The famous Trapezium Cluster of hot young stars appears towards the bottom of this image. The ALMA data do not cover the full image shown here...

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    Star Formation in the Outskirts of Galaxies

    February 8, 2016, Categories  Astronomy/Space

    Star formation in the outskirts of galaxies

    Star formation in the outer spiral regions of the galaxy NGC 4625 is seen in ultraviolet light (blue); these arms are nearly invisible in optical light, but have hot, newborn stars that radiate in the UV. A new study finds that the star formation processes in these outer regions generally resemble the processes at work in more normal, denser regions where molecular gas abounds. The atomic gas is traced in the radio (purple); optical starlight is red. Credit: NASA/JPL-Caltech/Carnegie Observatories/WSRT

    Star formation environments can be roughly grouped into 3 types, categorized by the density of their gas (or more precisely, the projected “surface” density of the gas, which is easier to determine than volume density)...

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