Blar i SINTEF Open på forfatter "Barnett, Alejandro Oyarce"
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In-Situ Monitoring of Interfacial Contact Resistance in PEM Fuel Cells
McCay, Katie; Lædre, Sigrid; Martinsen, Stig-Yngve; Smith, Graham; Barnett, Alejandro Oyarce; Fortin, Patrick (Peer reviewed; Journal article, 2021)A new in situ method for measuring the interfacial contact resistance between the bipolar plate and gas diffusion layer of an operating PEM Fuel Cell has been developed. This method involves the insertion of probe wires, ... -
Ionomer content optimization in nickel-iron-based anodes with and without ceria for anion exchange membrane water electrolysis
Cossar, Emily; Barnett, Alejandro Oyarce; Seland, Frode; Safari, Reza; Botton, Gianluigi A.; Baranova, Elena A. (Peer reviewed; Journal article, 2021)Hydrogen production from anion exchange membrane water electrolysis (AEMWE) is an efficient cost-effective solution to renewable energy storage. Contrary to proton exchange membrane (PEM) electrolysis, AEMWE requires further ... -
Ni/NiO nanosheets for alkaline hydrogen evolution reaction: In situ electrochemical-Raman study
Faid, Alaa; Barnett, Alejandro Oyarce; Seland, Frode; Sunde, Svein (Peer reviewed; Journal article, 2020)Nickel/Nickel oxide (Ni/NiO) nanosheets heterostructure is a cheap and active catalyst for hydrogen evolution reaction (HER) in alkaline electrolytes. However, the reason for this activity is still under debate. Herein ... -
Online measurements of fluoride ions in proton exchange membrane water electrolysis through ion chromatography
Marocco, Paolo; Sundseth, Kyrre; Aarhaug, Thor Anders; Lanzini, Andrea; Santarelli, Massimo; Barnett, Alejandro Oyarce; Thomassen, Magnus (Peer reviewed; Journal article, 2021)This work investigates the online monitoring of fluoride ion concentration in proton exchange membrane water electrolysers (PEMWE) effluent water using an automated ion chromatography (IC) setup. Prototype catalyst coated ... -
Platinum and Platinum Group Metal-Free Catalysts for Anion Exchange Membrane Fuel Cells
Truong, Van Men; Tolchard, Julian R; Svendby, Jørgen; Manikandan, Maidhily; Miller, Hamish; Sunde, Svein; Hsiharng, Yang; Dekel, Dario; Barnett, Alejandro Oyarce (Peer reviewed; Journal article, 2020)The development of active hydrogen oxidation reaction (HOR) and oxygen reduction reaction (ORR) catalysts for use in anion exchange membrane fuel cells (AEMFCs), which are free from platinum group metals (PGMs), is expected ... -
The performance of nickel and nickel-iron catalysts evaluated as anodes in anion exchange membrane water electrolysis
Cossar, Emily; Barnett, Alejandro Oyarce; Seland, Frode; Baranova, Elena (Journal article; Peer reviewed, 2019)Anion exchange membrane water electrolysis (AEMWE) is an efficient, cost-effective solution to renewable energy storage. The process includes oxygen and hydrogen evolution reactions (OER and HER); the OER is kinetically ... -
Tuning Ni–MoO2 Catalyst–Ionomer and Electrolyte Interaction for Water Electrolyzers with Anion Exchange Membranes
Faid, Alaa; Barnett, Alejandro Oyarce; Seland, Frode; Sunde, Svein (ACS Applied Energy Materials;2574-0962, Peer reviewed; Journal article, 2021)Tailoring catalyst–ionomer and electrolyte interaction is crucial for the development of anion exchange membrane (AEM) water electrolysis. In this work, the interaction of Ni–MoO2 nanosheets with ionomers and electrolyte ...