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Showing 1–8 of 8 results
Advanced filters: Author: Bing-Joe Hwang Clear advanced filters

  • Rechargeable aluminium ion batteries are an emerging class of energy storage device. Here the authors reveal high-quality natural graphite as a promising cathode for Al-ion batteries, also identifying chloroaluminate anion intercalation in graphite by Raman spectroscopy.

    • Di-Yan Wang
    • Chuan-Yu Wei
    • Hongjie Dai
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-7

  • There is ongoing research into new electrocatalysts for hydrogen production from water splitting. Here, the authors report the electrocatalytic performance of nickel/nickel oxide heterostructures on carbon nanotubes, and are able to assemble a water electrolyzer operated by a single-cell 1.5 V battery.

    • Ming Gong
    • Wu Zhou
    • Hongjie Dai
    Research
    Nature Communications
    Volume: 5, P: 1-6

  • Dual-ion doping: Through theoretical and experimental methods, we determined that dual-doped TiO2 has a much higher electron conductivity than that of single-doped TiO2, and more Pt occupies the defect sites of dual-doped TiO2. Pt on this dual-doped support is almost three times more active than Pt on single-doped TiO2 and is more stable than Pt on carbon.

    • Bing-Jen Hsieh
    • Meng-Che Tsai
    • Bing-Joe Hwang
    ResearchOpen Access
    NPG Asia Materials
    Volume: 9, P: e403

  • Rechargeable Na/Cl2 and Li/Cl2 batteries are produced with a microporous carbon positive electrode, aluminium chloride in thionyl chloride as the electrolyte, and either sodium or lithium as the negative electrode.

    • Guanzhou Zhu
    • Xin Tian
    • Hongjie Dai
    Research
    Nature
    Volume: 596, P: 525-530

  • An aluminium-ion battery is reported that can charge within one minute, and offers improved cycle life compared to previous devices; it operates through the electrochemical deposition and dissolution of aluminium at the anode, and the intercalation/de-intercalation of chloroaluminate anions into a novel graphitic-foam cathode.

    • Meng-Chang Lin
    • Ming Gong
    • Hongjie Dai
    Research
    Nature
    Volume: 520, P: 324-328

  • Nanoporous platinum (Pt) with a gyroid nanostructure was fabricated using a nanoporous polymer with gyroid nanochannels as a template. The nanoporous polymer template was obtained from the self-assembly of the degradable block copolymer, polystyrene-b-poly(L-lactide) (PS-PLLA), followed by the hydrolysis of the PLLA blocks. Templated electroless plating can be conducted under ambient conditions to create a precisely controlled Pt gyroid nanostructure with high crystallinity in a PS matrix. After removal of the PS matrix, the well-interconnected nanoporous gyroid Pt can be successfully fabricated. Compared with commercially available catalysts, the nanoporous Pt possesses superior macroscopic stability and peak specific activity, benefiting from the well-defined network structure with robust texture and the growth of the low-index crystalline facets of Pt.

    • Chung-Fu Cheng
    • Han-Yu Hsueh
    • Rong-Ming Ho
    ResearchOpen Access
    NPG Asia Materials
    Volume: 7, P: e170