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Browsing NTNU Open by Author "Pollet, Bruno"

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Now showing items 1-20 of 45

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    • A Highly-Efficient and Stable Catalyst based on Co(OH)2@Ni Electroplated on Cu-Metallized Cotton Textile for Water Splitting 

      Wang, Zining; Ji, Shan; Liu, Fusheng; Wang, Hui; Wang, Xuyun; Wang, Qizhao; Pollet, Bruno; Wang, Rongfang (Journal article; Peer reviewed, 2019)
      The concept of using renewable energy to power water electrolyzers is seen as a favorable approach for the production of green and sustainable hydrogen. The electrochemical water splitting can be significantly and efficiently ...
    • Achieving highly practical capacitance of MnO2 by using chain-like CoB alloy as support 

      Yan, Jingjing; Wang, Hui; Ji, Shan; Pollet, Bruno; Wang, Rongfang (Journal article; Peer reviewed, 2018)
      The practical performance of MnO2 as a capacitor material is limited mainly by its poor electronic conductivity. Arranging MnO2 on the conductive backbone to form a unique hierarchical nanostructure is an efficient way to ...
    • Assessment of the beneficial combination of electrochemical and ultrasonic activation of compounds originating from biomass 

      Neah, N; Islam, Md. H.; Baranton, S; Coutanceau, Christophe; Pollet, Bruno (Journal article; Peer reviewed, 2020)
      The electro-oxidation of organic molecules at the anode with simultaneous generation of hydrogen at the cathode in electrosynthesis reactors is considered as a promising and efficient process for the co-production of ...
    • Co3O4/CuMoO4 Hybrid Microflowers Composed of Nanorods with Rich Particle Boundaries as a Highly Active Catalyst for Ammonia Borane Hydrolysis 

      Lu, Dongsheng; Liao, Jinyun; Li, Hao; Ji, Shan; Pollet, Bruno (Journal article; Peer reviewed, 2019)
      Dehydrogenation of ammonia borane (AB) is a promising approach for the production and use of hydrogen for industrial and fuel cell applications. The development of low-cost and highly active catalysts is critical for these ...
    • Current Status of Automotive Fuel Cells for Sustainable Transport 

      Pollet, Bruno; Staffell, Iain; Kocha, Shyam (Journal article; Peer reviewed, 2019)
      Automotive proton-exchange membrane fuel cells (PEMFCs) have finally reached a state of technological readiness where several major automotive companies are commercially leasing and selling fuel cell electric vehicles, ...
    • Does power ultrasound affect heterogeneous electron transfer kinetics? 

      Pollet, Bruno (Journal article; Peer reviewed, 2018)
      Most of the observations seen in the application of power ultrasound in electrochemistry or also known as sonoelectrochemistry are due to enhanced mass-transport of electroactive species from the bulk solution to the ...
    • Does power ultrasound affect Nafion® dispersions? 

      Adamski, Michael; Peressin, Nicolas; Holdcroft, Steven; Pollet, Bruno (Journal article; Peer reviewed, 2020)
      The effect of low frequency power ultrasound on Nafion® ionomer used for fabricating proton exchange membrane fuel cell (PEMFC) and water electrolyzer (PEMWE) catalyst inks was investigated. In this study, a series of ...
    • Effect of power ultrasound and Fenton reagents on the biomethane potential from steam-exploded birchwood 

      Lamb, Jacob Joseph; Islam, Md Hujjatul; Hjelme, Dag Roar; Pollet, Bruno; Lien, Kristian Myklebust (Journal article; Peer reviewed, 2019)
      The global demand for non-fossil energy sources is increasing rapidly. As a result, biogas presents a suitable alternative; however, first generation biofuels (e.g., sugar cane) potentially impact food crops globally. ...
    • Electroreduction of oxygen on Nafion®-coated thin platinum films in acid media 

      Sarapuu, Ave; Hussain, Sajid; Kasikov, Aarne; Pollet, Bruno; Tammeveski, Kaido (Journal article; Peer reviewed, 2019)
      Electrocatalytic oxygen reduction reaction (ORR) kinetics on vacuum-evaporated thin platinum films in sulfuric acid solution is thoroughly investigated employing the rotating disc electrode (RDE) method. The nominal thickness ...
    • Enhanced Cycleability of Amorphous MnO2 by Covering on α-MnO2 Needles in an Electrochemical Capacitor 

      Liu, Quanbing; Ji, Shan; Yang, Juan; Wang, Hui; Pollet, Bruno; Wang, Rongfang (Journal article; Peer reviewed, 2017)
      An allomorph MnO2@MnO2 core-shell nanostructure was developed via a two-step aqueous reaction method. The data analysis of Scanning Electron Microscopy, Transmission Electron Microscopy, X-Ray Diffraction and N2 ...
    • Ex-Situ Electrochemical Characterization of IrO2 Synthesized by a Modified Adams Fusion Method for the Oxygen Evolution Reaction 

      Felix, Cecil; Bladergroen, Ben J.; Linkov, Vladimir; Pollet, Bruno; Pasupathi, Sivakumar (Journal article; Peer reviewed, 2019)
      The development of highly stable and active electrocatalysts for the oxygen evolution reaction (OER) has attracted significant research interest. IrO2 is known to show good stability during the OER however it is not known ...
    • Flow Field Patterns for Proton Exchange Membrane (PEM) Fuel Cells 

      Sauermoser, Marco; Kizilova, Nataliya; Pollet, Bruno; Kjelstrup, Signe (Journal article; Peer reviewed, 2020)
      Flow field designs for the bipolar plates of the proton exchange membrane fuel cell are reviewed; including the serpentine, parallel, interdigitated, mesh type or their mixtures, furthermore 2D circular and 3D tubular ...
    • From bad electrochemical practices to an environmental and waste reducing approach for the generation of active hydrogen evolving electrodes 

      Ring, Lisa; Pollet, Bruno; Chatenet, Marian; Abbou, Sofyane; Küpper, Karsten; Schmidt, Mercedes; Huck, Marten; Gries, Aurelia; Steinhart, Martin; Schäfer, Helmut (Journal article; Peer reviewed, 2019)
      The electrodeposition of noble metals using corresponding dissolved metal salts represents an interesting process for the improvement of the electrocatalytic Hydrogen Evolution Reaction (HER) properties of less active ...
    • Graphene inclusion effect on anion-exchange membranes properties for alkaline water electrolyzers 

      Ion-Ebrasu, Daniela; Pollet, Bruno; Caprarescu, Simona; Chitu, Alin; Trusca, Roxana; Niculescu, Violeta; Gabor, Raluca; Carcadea, Elena; Varlam, Mihai; Vasile, Bogdan Stefan (Peer reviewed; Journal article, 2020)
      The main issues facing the development of Anion Exchange Membranes (AEM) are the low hydroxide ion (OH−) conductivity compared to protons (H+), and the thermal and chemical stability. Based on the its unique two-dimensional ...
    • Graphene Modified Fluorinated Cation-Exchange Membranes for Proton Exchange Membrane Water Electrolysis 

      Ion-Ebrasu, Daniela; Pollet, Bruno; Spinu-Zaulet, Adnana; Soare, Amalia; Carcadea, Elena; Varlam, Mihai; Caprarescu, Simona (Journal article; Peer reviewed, 2019)
      One of major current technical challenges in proton exchange membrane water electrolysis (PEMWE) is the limited proton conductivity. Nowadays, graphene is considered one of the most promising candidates for improving the ...
    • Highly active porous Co–B nanoalloy synthesized on liquid-gas interface for hydrolysis of sodium borohydride 

      Wang, Xingpu; Liao, Jinyun; Li, Hao; Wang, Hui; Wang, Rongfang; Pollet, Bruno; Ji, Shan (Journal article; Peer reviewed, 2018)
      Porous Co–B nanoalloy is a low-cost and highly active catalyst towards the hydrolysis of sodium borohydride (NaBH4). In this study, a facile and room-temperature hydrogen bubble-assisted method was developed to prepare ...
    • A highly efficient water electrolyser cell assembled by asymmetric array electrodes based on Co, Fe-doped Ni(OH)2 nanosheets 

      Wu, Yutai; Ji, Shan; Pollet, Bruno; Wang, Xuyun; Wang, Rongfang (Peer reviewed; Journal article, 2020)
      Hydrogen is an “ideal” clean sustainable energy source if it is produced via water electrolyser using power generated by renewable energy systems (RES) such as solar panels and wind turbines. In this study, cobalt (Co) and ...
    • Hollow core-shell structured Cu2O@Cu1.8S spheres as novel electrode for enzyme free glucose sensing 

      Cao, Miaomiao; Wang, Hui; Ji, Shan; Zhao, Qian; Pollet, Bruno; Wang, Rongfang (Journal article; Peer reviewed, 2019)
      This study reports a novel hollow Cu2O@Cu1.8S material used as a catalyst for enzyme free glucose detection. Cu2O@Cu1.8S is successfully synthesized by a facile in-situ growth method. The obtained Cu2O@Cu1.8S exhibits a ...
    • How to Avoid Total Dissolved Gas Supersaturation in Water from Hydropower Plants by Employing Ultrasound 

      Rognerud, Maren Elise; Solemslie, Bjørn Winther; Islam, Md Hujjatul; Pollet, Bruno (Peer reviewed; Journal article, 2020)
      In Norway, more than 10 hydropower plants are known to have caused biologically relevant levels of total dissolved gas supersaturation in the rivers downstream power plants. This phenomenon is causing fish kills due to gas ...
    • The Impact of Peltier and Dufour Coefficients on Heat Fluxes and Temperature Profiles in the Polymer Electrolyte Fuel Cells 

      Sauermoser, Marco; Kjelstrup, Signe; Pollet, Bruno (Peer reviewed; Journal article, 2020)
      We show that the coupling effects in non-equilibrium thermodynamics for heat-, mass- and charge- transport in the polymer electrolyte membrane fuel cell (PEMFC) all give significant contributions to local heat effects. The ...

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