Browsing by Author "Ma, Quanbao"

Now showing items 1-6 of 6

  • Boron-implanted 3C-SiC for intermediate band solar cells 
    Ma, Quanbao; Galeckas, Augustinas; Azarov, Alexander; Thøgersen, Annett; Carvalho, Patricia; Wright, Daniel Nilsen; Diplas, Spyridon; Løvvik, Ole Martin; Jokubavicius, Valdas; Liu, Xinyu; Sun, Jianwu; Syväjärvi, Mikael; Svensson, Bengt Gunnar (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2016)
    Sublimation-grown 3C-SiC crystals were implanted with 2 atomic percent of boron ions at elevated temperature (400 °C) using multiple energies (100 to 575 keV) with a total dose of 8.5×1016 atoms/cm2. The samples were then ...
  • Cubic silicon carbide as a potential photovoltaic material 
    Syväjärvi, Mikael; Ma, Quanbao; Jokubavicius, Valdas; Galeckas, Augustinas; Sun, Jianwu; Liu, Xinyu; Jansson, Mattias; Wellmann, Peter; Linnarsson, Margareta; Runde, Paal; Johansen, Bertil; Thøgersen, Annett; Diplas, Spyridon; Carvalho, Patricia; Løvvik, Ole Martin; Wright, Daniel Nilsen; Azarov, Alexander; Svensson, Bengt Gunnar (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2016)
    In this work we present a significant advancement in cubic silicon carbide (3C-SiC) growth in terms of crystal quality and domain size, and indicate its potential use in photovoltaics. To date, the use of 3C-SiC for ...
  • Effects of metal cation doping in CeO2 support on catalytic methane steam reforming at low temperature in an electric field 
    Takahashi, Ayako; Inagaki, Reona; Torimoto, Maki; Hisai, Yudai; Matsuda, Taku; Ma, Quanbao; Seo, Jeong Gil; Higo, Takuma; Tsuneki, Hideaki; Ogo, Shuhei; Norby, Truls Eivind; Sekine, Yasushi (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Catalytic methane steam reforming was conducted at low temperature using a Pd catalyst supported on Ce1−xMxO2 (x = 0 or 0.1, M = Ca, Ba, La, Y or Al) oxides with or without an electric field (EF). The effects of the catalyst ...
  • Enhanced activity of catalysts on substrates with surface protonic current in an electrical field – a review 
    Hisai, Yudai; Ma, Quanbao; Qureishy, Thomas; Watanabe, Takeshi; Higo, Takuma; Norby, Truls; Sekine, Yasushi (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    It has over the last few years been reported that the application of a DC electric field and resulting current over a bed of certain catalyst-support systems enhances catalytic activity for several reactions involving ...
  • First observation of surface protonics on SrZrO3 perovskite under a H2 atmosphere 
    Husai, Yudai; Murakami, Kota; Kamite, Yukiko; Ma, Quanbao; Vøllestad, Einar; Manabe, Ryo; Matsuda, Takumi; Ogo, Shuhei; Norby, Truls Eivind; Sekine, Yasushi (Journal article / PublishedVersion; Peer reviewed, 2020)
    This is the first direct observation that surface proton hopping occurs on SrZrO3 perovskite even under a H2 (i.e. dry) atmosphere. Understanding proton conduction mechanisms on ceramic surfaces under a H2 atmosphere is ...
  • Support effects on catalysis of low temperature methane steam reforming 
    Torimoto, Maki; Ogo, Shuhei; Hisai, Yudai; Takahashi, Ayako; Ma, Quanbao; Seo, Jeong Gil; Tsuneki, Hideaki; Norby, Truls Eivind; Sekine, Yasushi (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Low temperature (<500 K) methane steam reforming in an electric field was investigated over various catalysts. To elucidate the factors governing catalytic activity, activity tests and various characterization methods were ...