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Now showing items 21-30 of 44
Comparison of ionically and ionical-covalently cross-linked polyaromatic membranes for SO2 electrolysis
(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 ...
Membranes with recombination catalyst for hydrogen crossover reduction: water electrolysis
(ECS, 2018)
An unusual morphology of the Pt-based catalyst, embedded in a PFSA membrane matrix, is described. The catalyst was developed for reducing hydrogen gas crossover in the PEM water electrolysis process. A modified electroless ...
Modulated synthesis of zirconium-metal organic framework (Zr-MOF) for hydrogen storage applications
(Elsevier, 2014)
A modulated synthesis of Zr-metal organic framework (Zr-MOF) with improved ease of handling and decreased reaction time is reported to yield highly crystalline Zr-MOF with well-defined octahedral shaped crystals for practical ...
Microwave-assisted modulated synthesis of zirconium-based metal-organic framework (Zr-MOF) for hydrogen storage applications
(Hanser, 2014)
Zirconium-based metal–organic framework (Zr-MOF) was synthesized using a microwave-assisted modulated method in a short reaction time of 5 min. The Zr-MOF material was highly crystalline with well-defined octahedral shaped ...
Thermal treatment induced transition from Zn3(OH)2(BDC)2 (MOF-69c) to Zn4O(BDC)3 (MOF-5)
(Hanser, 2014)
A simple thermal treatment induced transition from Zn3(OH)2(BDC)2 (MOF-69c) to Zn4O(BDC)3 (MOF-5) is reported. Phase crystallinity, pore characteristics and hydrogen storage capacities of the resulting crystals were ...
Equivalent electrical circuit modelling of a Proton Exchange Membrane electrolyser based on current interruption
(IEEE, 2013)
A Proton Exchange Membrane (PEM) electrolyser is characterised and modelled to identify important electrochemical effects. These electrochemical effects include the ohmic, activation, and concentration losses within the ...
A study of the loss characteristics of a single cell PEM electrolyser for pure hydrogen production
(IEEE, 2013)
In this paper the losses of a proton exchange membrane (PEM) single cell electrolyser were investigated. The ohmic, activation and mass transfer losses are the most prominent losses in a PEM electrolyser. The Electrochemical ...
Characterisation tools development for PEM electrolysers
(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 ...
Electrocatalytic process for ammonia electrolysis: a remediation technique with hydrogen co-generation
(ESG, 2016)
Alkaline ammonia electrocatalysis offers a favorable technique for hydrogen generation and simultaneous conservation of environmental sustainability. In this work, the electrooxidation of ammonia on platinum-Iridium (Pt-Ir) ...
PEM water electrolysis: preliminary investigations using neutron radiography
(Elsevier, 2017)
The quasi-dynamic water distribution and performance of a proton exchange membrane (PEM) electrolyzer at both a small fuel cell's anode and cathode was observed and quantitatively measured in the in-plane imaging geometry ...