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

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

Chemical And Process Engineering

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% H-2/Ar. A total conductivity of 6.0-19 mS/cm in the temperature range of 150-250 degrees C has been achieved. The conductivity (about 19 mS/cm) is stable in humidified 5% H-2/Ar during ageing at 175 degrees C for over 100 h. This material is a potential electrolyte for intermediate temperature fuel cells and other electrochemical devices.

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

Keywords

Proton conductor
Conductivity
NH4PO3
electrolyte
composite
polyphosphate
stability
behaviour
acidity
CSH2PO4
silica
IR

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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% H-2/Ar. A total conductivity of 6.0-19 mS/cm in the temperature range of 150-250 degrees C has been achieved. The conductivity (about 19 mS/cm) is stable in humidified 5% H-2/Ar during ageing at 175 degrees C for over 100 h. This material is a potential electrolyte for intermediate temperature fuel cells and other electrochemical devices.",

keywords = "Proton conductor, Conductivity, NH4PO3, electrolyte, composite, polyphosphate, stability, behaviour, acidity, CSH2PO4, silica, IR",

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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 Ian

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% H-2/Ar. A total conductivity of 6.0-19 mS/cm in the temperature range of 150-250 degrees C has been achieved. The conductivity (about 19 mS/cm) is stable in humidified 5% H-2/Ar during ageing at 175 degrees C for over 100 h. This material is a potential electrolyte for intermediate temperature fuel cells and other electrochemical devices.

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% H-2/Ar. A total conductivity of 6.0-19 mS/cm in the temperature range of 150-250 degrees C has been achieved. The conductivity (about 19 mS/cm) is stable in humidified 5% H-2/Ar during ageing at 175 degrees C for over 100 h. This material is a potential electrolyte for intermediate temperature fuel cells and other electrochemical devices.

KW - Proton conductor

KW - Conductivity

KW - NH4PO3

KW - electrolyte

KW - composite

KW - polyphosphate

KW - stability

KW - behaviour

KW - acidity

KW - CSH2PO4

KW - silica

KW - IR

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DO - 10.1016/j.ssi.2010.11.028

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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

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Keywords

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