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

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

doi:10.1016/j.ssi.2010.11.028

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 journal › Article › peer-review

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 language	English
Pages (from-to)	108-112
Number of pages	5
Journal	Solid State Ionics
Volume	192
Issue number	1
Early online date	21 Dec 2010
DOIs	https://doi.org/10.1016/j.ssi.2010.11.028
Publication status	Published - 16 Jun 2011

Keywords

Proton conductor
Conductivity
NH4PO3

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10.1016/j.ssi.2010.11.028

Cite this

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title = "A stable NH4PO3-glass proton conductor for intermediate temperature fuel cells",

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.",

keywords = "Proton conductor, Conductivity, NH4PO3",

author = "Yinzhu Jiang and Teci Matthieu and Rong Lan and Xiaoxiang Xu and Cowin, {Peter I} and Shanwen Tao",

year = "2011",

month = jun,

day = "16",

doi = "10.1016/j.ssi.2010.11.028",

language = "English",

volume = "192",

pages = "108--112",

journal = "Solid State Ionics",

issn = "0167-2738",

publisher = "Elsevier",

number = "1",

}

TY - JOUR

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.

KW - Proton conductor

KW - Conductivity

KW - NH4PO3

U2 - 10.1016/j.ssi.2010.11.028

DO - 10.1016/j.ssi.2010.11.028

M3 - Article

SN - 0167-2738

VL - 192

SP - 108

EP - 112

JO - Solid State Ionics

JF - Solid State Ionics

IS - 1

ER -

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

Abstract

Keywords

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