High Ionic Conductivity in Composite Materials Under H2/Air Fuel Cell Condition

Rong Lan, Shanwen Tao

    Research output: Contribution to conferenceAbstract

    Abstract

    New ionic conducting electrolyte materials for solid oxide fuel cells (SOFCs), particularly intermediate temperature fuel cells have been attracting the interests of researchers in energy materials. The typical electrolytes used for SOFCs are normally single phase oxides. Here we report a series of conductive composites with high ionic conductivity derived from an electronic conductor such as a-LiFeO2 and an insulator such as g-LiAlO2. High conductivity was observed in the composites when prepared by a solid state reaction method. These composites also exhibit O2- or/and H+ ionic conduction which was confirmed through H2/air fuel cell measurements. An exceptionally high conductivity of 0.50 S/cm at 650 °C was observed under H2/air fuel cell condition. This provides a new approach to discover novel ionic conductors in composite materials.
    Original languageEnglish
    Pages336
    Number of pages1
    Publication statusPublished - 2015

    Fingerprint

    Ionic conductivity
    Fuel cells
    Composite materials
    Air
    Solid oxide fuel cells (SOFC)
    Electrolytes
    Ionic conduction
    Solid state reactions
    Oxides
    Temperature

    Cite this

    High Ionic Conductivity in Composite Materials Under H2/Air Fuel Cell Condition. / Lan, Rong; Tao, Shanwen .

    2015. 336.

    Research output: Contribution to conferenceAbstract

    @conference{dc06ad2bbf7845f2ab9e11b74cd392f3,
    title = "High Ionic Conductivity in Composite Materials Under H2/Air Fuel Cell Condition",
    abstract = "New ionic conducting electrolyte materials for solid oxide fuel cells (SOFCs), particularly intermediate temperature fuel cells have been attracting the interests of researchers in energy materials. The typical electrolytes used for SOFCs are normally single phase oxides. Here we report a series of conductive composites with high ionic conductivity derived from an electronic conductor such as a-LiFeO2 and an insulator such as g-LiAlO2. High conductivity was observed in the composites when prepared by a solid state reaction method. These composites also exhibit O2- or/and H+ ionic conduction which was confirmed through H2/air fuel cell measurements. An exceptionally high conductivity of 0.50 S/cm at 650 °C was observed under H2/air fuel cell condition. This provides a new approach to discover novel ionic conductors in composite materials.",
    author = "Rong Lan and Shanwen Tao",
    year = "2015",
    language = "English",
    pages = "336",

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    T1 - High Ionic Conductivity in Composite Materials Under H2/Air Fuel Cell Condition

    AU - Lan, Rong

    AU - Tao, Shanwen

    PY - 2015

    Y1 - 2015

    N2 - New ionic conducting electrolyte materials for solid oxide fuel cells (SOFCs), particularly intermediate temperature fuel cells have been attracting the interests of researchers in energy materials. The typical electrolytes used for SOFCs are normally single phase oxides. Here we report a series of conductive composites with high ionic conductivity derived from an electronic conductor such as a-LiFeO2 and an insulator such as g-LiAlO2. High conductivity was observed in the composites when prepared by a solid state reaction method. These composites also exhibit O2- or/and H+ ionic conduction which was confirmed through H2/air fuel cell measurements. An exceptionally high conductivity of 0.50 S/cm at 650 °C was observed under H2/air fuel cell condition. This provides a new approach to discover novel ionic conductors in composite materials.

    AB - New ionic conducting electrolyte materials for solid oxide fuel cells (SOFCs), particularly intermediate temperature fuel cells have been attracting the interests of researchers in energy materials. The typical electrolytes used for SOFCs are normally single phase oxides. Here we report a series of conductive composites with high ionic conductivity derived from an electronic conductor such as a-LiFeO2 and an insulator such as g-LiAlO2. High conductivity was observed in the composites when prepared by a solid state reaction method. These composites also exhibit O2- or/and H+ ionic conduction which was confirmed through H2/air fuel cell measurements. An exceptionally high conductivity of 0.50 S/cm at 650 °C was observed under H2/air fuel cell condition. This provides a new approach to discover novel ionic conductors in composite materials.

    M3 - Abstract

    SP - 336

    ER -