Now showing items 1-5 of 5

    • Characterisation tools development for PEM electrolysers 

      Van der Merwe, Jan; Uren, Kenny; Van Schoor, George; Bessarabov, Dmitri (Elsevier, 2014)
      Electrochemical impedance spectroscopy (EIS), current interrupt (CI) and current mapping (CM) were investigated as in-situ characterisation tools for PEM electrolysers. A 25 cm2 cell with titanium anode and carbon cathode ...
    • Comparison of ionically and ionical-covalently cross-linked polyaromatic membranes for SO2 electrolysis 

      Peach, Retha; Krieg, Henning M.; Krüger, Andries J.; Van der Westhuizen, Derik; Bessarabov, Dmitri (Elsevier, 2014)
      It has been shown that hydrogen, which can be used for energy storage, can be produced efficiently by the membrane based Hybrid Sulfur (HyS) process. During the HyS electrolysis step, SO2 and H2O are converted to H2 and ...
    • Effect of H2S on SO2-depolarised water electrolysis 

      Krüger, Andries J.; Krieg, Henning M.; Bessarabov, Dmitri (Elsevier, 2015)
      The performance of a PEM SO2 electrolyser, used for the production of H2 gas and liquid H2SO4, was evaluated when the feed was contaminated with hydrogen sulfide. Transient voltage response at constant current density and ...
    • Evaluation of MEA manufacturing parameters using EIS for SO2 electrolysis 

      Krüger, Andries J.; Krieg, Henning M.; Van der Merwe, Jan; Bessarabov, Dmitri (Elsevier, 2014)
      Membrane electrode assembly (MEA) manufacturing parameters such as hot pressing pressure and pressing time were investigated for the use in a SO2 electrolyser. The SO2 electrolysis was optimised in terms of cell temperature, ...
    • Theoretical limit of reversible hydrogen storage capacity for pristine and oxygen-doped boron nitride 

      Tokarev, Andrey; Bessarabov, Dmitri; Kjeang, Erik; Cannon, Mark (Elsevier, 2016)
      To achieve higher hydrogen storage capacity than that of compressed gas vessels, new advanced materials must be developed. Among the most promising are two-dimensional layered nanomaterials, such as graphene and boron ...