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  1. AU="Folgado M. Antonia"
  2. AU="Panahipour, Layla"
  3. AU=Russell William
  4. AU="Summers, Spencer"
  5. AU="R. Alta Charo"
  6. AU="Patiño-Castiñeira, Berta"
  7. AU=Ryan C F
  8. AU="Perez, F."
  9. AU="Durán, Mercedes"
  10. AU="Wilne, Sophie"
  11. AU="Changjin Lee"
  12. AU="Hyunsoo Lee"
  13. AU=Sinha Ian
  14. AU="Bird, M F"

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  1. Artikel: Recent progress in electrocatalysts and electrodes for portable fuel cells

    Neaţu, Ştefan / Neaţu, Florentina / Chirica, Iuliana M. / Borbáth, Irina / Tálas, Emília / Tompos, András / Somacescu, Simona / Osiceanu, Petre / Folgado, M. Antonia / Chaparro, Antonio M. / Florea, Mihaela

    Journal of materials chemistry A. 2021 Aug. 17, v. 9, no. 32

    2021  

    Abstract: Fuel cells are devices that transform efficiently the chemical energy of hydrogen or another fuel into clean electricity. The fuel cell technology is attractive for its high-energy efficiency and expanded fuel flexibility and it became very relevant in ... ...

    Abstract Fuel cells are devices that transform efficiently the chemical energy of hydrogen or another fuel into clean electricity. The fuel cell technology is attractive for its high-energy efficiency and expanded fuel flexibility and it became very relevant in the last decade. Moreover, the utilization of fuel cells for portable electronic devices has seen remarkable increase in the last few years. Performances of fuel cells, among others, strongly depend on the types of electrocatalysts and membrane, anion exchange or cation exchange, used in the system. Therefore, a status report about the latest advances in electrocatalysts and electrodes for portable fuel cells is the objective of this review paper. Herein, the recent progress in designing electrocatalysts for producing high performance fuel cells with truly potential applicability to be used in portable devices is highlighted.
    Schlagwörter anion exchange ; cation exchange ; electricity ; energy ; fuel cells ; hydrogen
    Sprache Englisch
    Erscheinungsverlauf 2021-0817
    Umfang p. 17065-17128.
    Erscheinungsort The Royal Society of Chemistry
    Dokumenttyp Artikel
    ZDB-ID 2702232-8
    ISSN 2050-7496 ; 2050-7488
    ISSN (online) 2050-7496
    ISSN 2050-7488
    DOI 10.1039/d1ta03644k
    Datenquelle NAL Katalog (AGRICOLA)

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  2. Artikel: Degradation Study by Start-Up/Shut-Down Cycling of Superhydrophobic Electrosprayed Catalyst Layers Using a Localized Reference Electrode Technique

    Ferreira-Aparicio, Paloma / Brightman Edward / Chaparro Antonio M / Conde Julio J / Folgado M. Antonia / Hinds Gareth

    ACS Applied Materials & Interfaces. 2017 Mar. 29, v. 9, no. 12

    2017  

    Abstract: Degradation of a polymer electrolyte membrane fuel cell (PEMFC) with electrosprayed cathode catalyst layers is investigated during cyclic start-up and shut-down events. The study is carried out within a single cell incorporating an array of reference ... ...

    Abstract Degradation of a polymer electrolyte membrane fuel cell (PEMFC) with electrosprayed cathode catalyst layers is investigated during cyclic start-up and shut-down events. The study is carried out within a single cell incorporating an array of reference electrodes that enables measurement of cell current as a function of local cathode potential (localized polarization curves). Accelerated degradation of the cell by start-up/shut-down cycling gives rise to inhomogeneous performance loss, which is more severe close to the gas outlet and occurs predominantly during start-up. The degradation consists primarily of loss of cathode catalyst activity and increase in cell internal resistance, which is attributed to carbon corrosion and Pt aggregation in both anode and cathode. Cells with an electrosprayed cathode catalyst layer show lower degradation rates during the first 100 cycles, compared with those of a conventional gas diffusion electrode. This difference in behavior is attributed to the high hydrophobicity of the electrosprayed catalyst layer microstructure, which retards the kinetics of corrosion of the carbon support. In the long term, however, the degradation rate is dominated by the Pt/C ratio in the cathode catalyst layer.
    Schlagwörter anodes ; carbon ; catalysts ; cathodes ; corrosion ; electrolytes ; fuel cells ; hydrophobicity ; microstructure ; polymers
    Sprache Englisch
    Erscheinungsverlauf 2017-0329
    Umfang p. 10626-10636.
    Erscheinungsort American Chemical Society
    Dokumenttyp Artikel
    ISSN 1944-8252
    DOI 10.1021%2Facsami.6b15581
    Datenquelle NAL Katalog (AGRICOLA)

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  3. Artikel ; Online: Degradation Study by Start-Up/Shut-Down Cycling of Superhydrophobic Electrosprayed Catalyst Layers Using a Localized Reference Electrode Technique.

    Ferreira-Aparicio, Paloma / Chaparro, Antonio M / Folgado, M Antonia / Conde, Julio J / Brightman, Edward / Hinds, Gareth

    ACS applied materials & interfaces

    2017  Band 9, Heft 12, Seite(n) 10626–10636

    Abstract: Degradation of a polymer electrolyte membrane fuel cell (PEMFC) with electrosprayed cathode catalyst layers is investigated during cyclic start-up and shut-down events. The study is carried out within a single cell incorporating an array of reference ... ...

    Abstract Degradation of a polymer electrolyte membrane fuel cell (PEMFC) with electrosprayed cathode catalyst layers is investigated during cyclic start-up and shut-down events. The study is carried out within a single cell incorporating an array of reference electrodes that enables measurement of cell current as a function of local cathode potential (localized polarization curves). Accelerated degradation of the cell by start-up/shut-down cycling gives rise to inhomogeneous performance loss, which is more severe close to the gas outlet and occurs predominantly during start-up. The degradation consists primarily of loss of cathode catalyst activity and increase in cell internal resistance, which is attributed to carbon corrosion and Pt aggregation in both anode and cathode. Cells with an electrosprayed cathode catalyst layer show lower degradation rates during the first 100 cycles, compared with those of a conventional gas diffusion electrode. This difference in behavior is attributed to the high hydrophobicity of the electrosprayed catalyst layer microstructure, which retards the kinetics of corrosion of the carbon support. In the long term, however, the degradation rate is dominated by the Pt/C ratio in the cathode catalyst layer.
    Sprache Englisch
    Erscheinungsdatum 2017-03-29
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.6b15581
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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