A stable NH4PO3-glass proton conductor for intermediate temperature fuel cells

Yinzhu Jiang, Teci Matthieu, Rong Lan, Xiaoxiang Xu, Peter I Cowin, Shanwen Tao

    Research output: Contribution to journalArticle

    9 Citations (Scopus)

    Abstract

    A stable and conductive composite material based on NH4PO3 and amorphous oxides (SiO2–P2O5) has been prepared by a wet-chemical route following with firing in ammonia. The composite showed high proton conductivity in both ambient air and humidified 5% H2/Ar. A total conductivity of 6.0–19 mS/cm in the temperature range of 150–250 °C has been achieved. The conductivity (about 19 mS/cm) is stable in humidified 5% H2/Ar during ageing at 175 °C for over 100 h. This material is a potential electrolyte for intermediate temperature fuel cells and other electrochemical devices.

    Research Highlights
    ► Proton conductivity of NH4PO3-glass composite has been investigated. ► Proton conductivity is stable in humidified 5%H2/Ar at 175 °C for over 100 h. ► The proton conduction of NH4PO3-glass composite is due to the acid from decomposition of NH4PO3. ► NH4PO3-glass composite is a potential electrolyte for intermediate temperature fuel cells.

    Original languageEnglish
    Pages (from-to)108-112
    Number of pages5
    JournalSolid State Ionics
    Volume192
    Issue number1
    Early online date21 Dec 2010
    DOIs
    Publication statusPublished - 16 Jun 2011

    Fingerprint

    fuel cells
    Protons
    Fuel cells
    conductors
    Proton conductivity
    Glass
    conductivity
    composite materials
    protons
    glass
    Composite materials
    Electrolytes
    Temperature
    temperature
    electrolytes
    Conductive materials
    Ammonia
    Oxides
    ammonia
    Aging of materials

    Keywords

    • Proton conductor
    • Conductivity
    • NH4PO3

    Cite this

    A stable NH4PO3-glass proton conductor for intermediate temperature fuel cells. / Jiang, Yinzhu ; Matthieu, Teci; Lan, Rong; Xu, Xiaoxiang; Cowin, Peter I; Tao, Shanwen .

    In: Solid State Ionics, Vol. 192, No. 1, 16.06.2011, p. 108-112.

    Research output: Contribution to journalArticle

    Jiang, Yinzhu ; Matthieu, Teci ; Lan, Rong ; Xu, Xiaoxiang ; Cowin, Peter I ; Tao, Shanwen . / A stable NH4PO3-glass proton conductor for intermediate temperature fuel cells. In: Solid State Ionics. 2011 ; Vol. 192, No. 1. pp. 108-112.
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    abstract = "A stable and conductive composite material based on NH4PO3 and amorphous oxides (SiO2–P2O5) has been prepared by a wet-chemical route following with firing in ammonia. The composite showed high proton conductivity in both ambient air and humidified 5{\%} H2/Ar. A total conductivity of 6.0–19 mS/cm in the temperature range of 150–250 °C has been achieved. The conductivity (about 19 mS/cm) is stable in humidified 5{\%} H2/Ar during ageing at 175 °C for over 100 h. This material is a potential electrolyte for intermediate temperature fuel cells and other electrochemical devices.Research Highlights► Proton conductivity of NH4PO3-glass composite has been investigated. ► Proton conductivity is stable in humidified 5{\%}H2/Ar at 175 °C for over 100 h. ► The proton conduction of NH4PO3-glass composite is due to the acid from decomposition of NH4PO3. ► NH4PO3-glass composite is a potential electrolyte for intermediate temperature fuel cells.",
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    T1 - A stable NH4PO3-glass proton conductor for intermediate temperature fuel cells

    AU - Jiang, Yinzhu

    AU - Matthieu, Teci

    AU - Lan, Rong

    AU - Xu, Xiaoxiang

    AU - Cowin, Peter I

    AU - Tao, Shanwen

    PY - 2011/6/16

    Y1 - 2011/6/16

    N2 - A stable and conductive composite material based on NH4PO3 and amorphous oxides (SiO2–P2O5) has been prepared by a wet-chemical route following with firing in ammonia. The composite showed high proton conductivity in both ambient air and humidified 5% H2/Ar. A total conductivity of 6.0–19 mS/cm in the temperature range of 150–250 °C has been achieved. The conductivity (about 19 mS/cm) is stable in humidified 5% H2/Ar during ageing at 175 °C for over 100 h. This material is a potential electrolyte for intermediate temperature fuel cells and other electrochemical devices.Research Highlights► Proton conductivity of NH4PO3-glass composite has been investigated. ► Proton conductivity is stable in humidified 5%H2/Ar at 175 °C for over 100 h. ► The proton conduction of NH4PO3-glass composite is due to the acid from decomposition of NH4PO3. ► NH4PO3-glass composite is a potential electrolyte for intermediate temperature fuel cells.

    AB - A stable and conductive composite material based on NH4PO3 and amorphous oxides (SiO2–P2O5) has been prepared by a wet-chemical route following with firing in ammonia. The composite showed high proton conductivity in both ambient air and humidified 5% H2/Ar. A total conductivity of 6.0–19 mS/cm in the temperature range of 150–250 °C has been achieved. The conductivity (about 19 mS/cm) is stable in humidified 5% H2/Ar during ageing at 175 °C for over 100 h. This material is a potential electrolyte for intermediate temperature fuel cells and other electrochemical devices.Research Highlights► Proton conductivity of NH4PO3-glass composite has been investigated. ► Proton conductivity is stable in humidified 5%H2/Ar at 175 °C for over 100 h. ► The proton conduction of NH4PO3-glass composite is due to the acid from decomposition of NH4PO3. ► NH4PO3-glass composite is a potential electrolyte for intermediate temperature fuel cells.

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    KW - Conductivity

    KW - NH4PO3

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    SN - 0167-2738

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