Sensing Properties and Interfacial Structure of Solid Electrolyte CO2 Sensor Attached with Na2CO3 -based Auxiliary Phase

Kengo Shimanoe, Tetsuya Kida, Hideki Kawate, Norio Miura, Noboru Yamazoe

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Potentiometric devices for which a disc of NASICON (Na+ conductor, Na3Zr2Si2PO12) was attached with an auxiliary phase of Na2CO3 (I) or Na2CO3-BaCO3 (2 : 3 in molar ratio) (II) were investigated for CO2 sensing properties and the structure of hetero-junctions involved, SEM observation combined with EPMA analysis indicated that, for device (I), a corrosion layer (20-30 μm) rich in Na content was formed inside NASICON. The corrosion layer was estimated to consist mainly of Na2ZrSiO3 and Na2ZrO2 from separate experiments using powder samples. For device (II), in contrast, such a corrosion layer was hardly formed between the carbonate and NASICON. This difference in junction structure could account well for the difference in CO2 sensing capability at lower temperature between the devices.

Original languageEnglish
Pages (from-to)1258-1261
Number of pages4
JournalElectrochemistry
Volume67
Issue number12
Publication statusPublished - Dec 1 1999

Fingerprint

Solid electrolytes
Corrosion
Sensors
Carbonates
Electron probe microanalysis
Powders
Scanning electron microscopy
Experiments
Temperature

All Science Journal Classification (ASJC) codes

  • Electrochemistry

Cite this

Sensing Properties and Interfacial Structure of Solid Electrolyte CO2 Sensor Attached with Na2CO3 -based Auxiliary Phase. / Shimanoe, Kengo; Kida, Tetsuya; Kawate, Hideki; Miura, Norio; Yamazoe, Noboru.

In: Electrochemistry, Vol. 67, No. 12, 01.12.1999, p. 1258-1261.

Research output: Contribution to journalArticle

Shimanoe, Kengo ; Kida, Tetsuya ; Kawate, Hideki ; Miura, Norio ; Yamazoe, Noboru. / Sensing Properties and Interfacial Structure of Solid Electrolyte CO2 Sensor Attached with Na2CO3 -based Auxiliary Phase. In: Electrochemistry. 1999 ; Vol. 67, No. 12. pp. 1258-1261.
@article{06441572ee5c49f3b8646d96afe7653d,
title = "Sensing Properties and Interfacial Structure of Solid Electrolyte CO2 Sensor Attached with Na2CO3 -based Auxiliary Phase",
abstract = "Potentiometric devices for which a disc of NASICON (Na+ conductor, Na3Zr2Si2PO12) was attached with an auxiliary phase of Na2CO3 (I) or Na2CO3-BaCO3 (2 : 3 in molar ratio) (II) were investigated for CO2 sensing properties and the structure of hetero-junctions involved, SEM observation combined with EPMA analysis indicated that, for device (I), a corrosion layer (20-30 μm) rich in Na content was formed inside NASICON. The corrosion layer was estimated to consist mainly of Na2ZrSiO3 and Na2ZrO2 from separate experiments using powder samples. For device (II), in contrast, such a corrosion layer was hardly formed between the carbonate and NASICON. This difference in junction structure could account well for the difference in CO2 sensing capability at lower temperature between the devices.",
author = "Kengo Shimanoe and Tetsuya Kida and Hideki Kawate and Norio Miura and Noboru Yamazoe",
year = "1999",
month = "12",
day = "1",
language = "English",
volume = "67",
pages = "1258--1261",
journal = "Electrochemistry",
issn = "1344-3542",
publisher = "The Electrochemical Society of Japan",
number = "12",

}

TY - JOUR

T1 - Sensing Properties and Interfacial Structure of Solid Electrolyte CO2 Sensor Attached with Na2CO3 -based Auxiliary Phase

AU - Shimanoe, Kengo

AU - Kida, Tetsuya

AU - Kawate, Hideki

AU - Miura, Norio

AU - Yamazoe, Noboru

PY - 1999/12/1

Y1 - 1999/12/1

N2 - Potentiometric devices for which a disc of NASICON (Na+ conductor, Na3Zr2Si2PO12) was attached with an auxiliary phase of Na2CO3 (I) or Na2CO3-BaCO3 (2 : 3 in molar ratio) (II) were investigated for CO2 sensing properties and the structure of hetero-junctions involved, SEM observation combined with EPMA analysis indicated that, for device (I), a corrosion layer (20-30 μm) rich in Na content was formed inside NASICON. The corrosion layer was estimated to consist mainly of Na2ZrSiO3 and Na2ZrO2 from separate experiments using powder samples. For device (II), in contrast, such a corrosion layer was hardly formed between the carbonate and NASICON. This difference in junction structure could account well for the difference in CO2 sensing capability at lower temperature between the devices.

AB - Potentiometric devices for which a disc of NASICON (Na+ conductor, Na3Zr2Si2PO12) was attached with an auxiliary phase of Na2CO3 (I) or Na2CO3-BaCO3 (2 : 3 in molar ratio) (II) were investigated for CO2 sensing properties and the structure of hetero-junctions involved, SEM observation combined with EPMA analysis indicated that, for device (I), a corrosion layer (20-30 μm) rich in Na content was formed inside NASICON. The corrosion layer was estimated to consist mainly of Na2ZrSiO3 and Na2ZrO2 from separate experiments using powder samples. For device (II), in contrast, such a corrosion layer was hardly formed between the carbonate and NASICON. This difference in junction structure could account well for the difference in CO2 sensing capability at lower temperature between the devices.

UR - http://www.scopus.com/inward/record.url?scp=2242489998&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=2242489998&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:2242489998

VL - 67

SP - 1258

EP - 1261

JO - Electrochemistry

JF - Electrochemistry

SN - 1344-3542

IS - 12

ER -