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Quantum Beam Science, Volume 5, Issue 3

September 2021 - 8 articles

Cover Story: Ethanol is a sustainable, carbon-neutral fuel source for direct oxidation fuel cells used in potable and mobile applications. The micro/nanocone structures of noble metals play a critical role as highly active electrocatalysts for anodic ethanol oxidation. Platinum cones were fabricated using swift heavy ion track technology involving the preparation of non-penetrated porous membranes and subsequent templated electrodeposition. Their excellent ethanol oxidation activity can be rationalized by considering the field-induced reagent concentration; that is, that polar ethanol molecules are likely to approach the surface of the cone electrode due to the local high electric field produced near its fine tip. View this paper
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Articles (8)

  • Article
  • Open Access
10 Citations
3,380 Views
11 Pages

V–4Cr–xTi (x = 0 to 4) alloys were used to investigate the additional effect of Cr, Ti and interstitial impurities on the microstructural evolution in He-irradiated V–Cr–Ti alloys to minimize radioactivity after fusion neutron irradiation. Transmissi...

  • Article
  • Open Access
12 Citations
4,727 Views
9 Pages

In an accelerator-driven system (ADS), the beam window material of the spallation neutron target is heavily irradiated under severe conditions, in which the radiation damage and corrosion co-occur because of high-energy neutron and/or proton irradiat...

  • Feature Paper
  • Article
  • Open Access
4 Citations
4,599 Views
7 Pages

Proton-Cluster-Beam Lethality and Mutagenicity in Bacillus subtilis Spores

  • Yoshihiro Hase,
  • Katsuya Satoh,
  • Atsuya Chiba,
  • Yoshimi Hirano,
  • Kengo Moribayashi and
  • Kazumasa Narumi

The unique energy transfer characteristics of swift cluster ions have attracted the attention of many researchers working on the analysis or processing of material surfaces, but the effects on living organisms remain unclear. We irradiated B. subtili...

  • Review
  • Open Access
7 Citations
5,220 Views
20 Pages

I have proposed a bottom-up technology utilising irradiation with active beams, such as electrons and ions, to achieve nanostructures with a size of 3–40 nm. This can be used as a nanotechnology that provides the desired structures, materials, and ph...

  • Feature Paper
  • Article
  • Open Access
4 Citations
3,527 Views
10 Pages

A gas-pressure cell, based on a leuco-sapphire single-crystal, serving as a pressure vessel and sample holder, is presented for real time in situ studies of solid-gas hydrogenation reactions. A stainless steel corpus, coated with neutron absorbing va...

  • Feature Paper
  • Article
  • Open Access
3 Citations
4,006 Views
12 Pages

Fabrication of Size- and Shape-Controlled Platinum Cones by Ion-Track Etching and Electrodeposition Techniques for Electrocatalytic Applications

  • Yuma Sato,
  • Hiroshi Koshikawa,
  • Shunya Yamamoto,
  • Masaki Sugimoto,
  • Shin-ichi Sawada and
  • Tetsuya Yamaki

The micro/nanocone structures of noble metals play a critical role as heterogeneous electrocatalysts that provide excellent activity. We successfully fabricated platinum cones by electrodeposition using non-penetrated porous membranes as templates. T...

  • Article
  • Open Access
4 Citations
3,581 Views
9 Pages

Partially stabilized zirconia (PSZ) is considered for use as an oxygen-sensor material in liquid lead-bismuth eutectic (LBE) alloys in the radiation environment of an acceleration-driven system (ADS). To predict its lifetime for operating in an ADS,...

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Quantum Beam Sci. - ISSN 2412-382X