Oxygen sensor based on the principle of electrochemical pump

Rui Xian Luo; En Hui Liu; Feng Cai Ren; Ai Fan Chen; Liu Chung-chiun

Oxygen sensor based on the principle of electrochemical pump

Rui Xian Luo, En Hui Liu, Feng Cai Ren, Ai Fan Chen, Liu Chung-chiun

Graduate Institute of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

A high-temperature oxygen sensor of limiting current with a porous layer on the cathode to limit the diffusion rate of oxygen is investigated and fabricated. The solid electrolyte is made of Yttria-doped stabilized zirconia (YSZ) and the porous platinum film electrode is deposited on the surface of YSZ. The relation between temperature and oxygen concentration is tested at 629 °-780 °C in a mixture of N₂ and O₂ with the oxygen concentration being 0-37%. Experimental results show a linear output with the oxygen concentration. The temperature-dependence of its output can be explained by taking into account a mixed diffusion control mechanism of the ordinary and Knudsen diffusion. The operating principle, structure and performance of the sensor are discussed.

Original language	English
Pages (from-to)	379-384
Number of pages	6
Journal	Science in China (Scientia Sinica) Series A
Volume	37
Issue number	3
State	Published - Mar 1994

Keywords

diffusion control
limiting current
oxygen sensor

Cite this

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title = "Oxygen sensor based on the principle of electrochemical pump",

abstract = "A high-temperature oxygen sensor of limiting current with a porous layer on the cathode to limit the diffusion rate of oxygen is investigated and fabricated. The solid electrolyte is made of Yttria-doped stabilized zirconia (YSZ) and the porous platinum film electrode is deposited on the surface of YSZ. The relation between temperature and oxygen concentration is tested at 629 °-780 °C in a mixture of N2 and O2 with the oxygen concentration being 0-37%. Experimental results show a linear output with the oxygen concentration. The temperature-dependence of its output can be explained by taking into account a mixed diffusion control mechanism of the ordinary and Knudsen diffusion. The operating principle, structure and performance of the sensor are discussed.",

keywords = "diffusion control, limiting current, oxygen sensor",

author = "Luo, {Rui Xian} and Liu, {En Hui} and Ren, {Feng Cai} and Chen, {Ai Fan} and Liu Chung-chiun",

year = "1994",

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TY - JOUR

T1 - Oxygen sensor based on the principle of electrochemical pump

AU - Luo, Rui Xian

AU - Liu, En Hui

AU - Ren, Feng Cai

AU - Chen, Ai Fan

AU - Chung-chiun, Liu

PY - 1994/3

Y1 - 1994/3

N2 - A high-temperature oxygen sensor of limiting current with a porous layer on the cathode to limit the diffusion rate of oxygen is investigated and fabricated. The solid electrolyte is made of Yttria-doped stabilized zirconia (YSZ) and the porous platinum film electrode is deposited on the surface of YSZ. The relation between temperature and oxygen concentration is tested at 629 °-780 °C in a mixture of N2 and O2 with the oxygen concentration being 0-37%. Experimental results show a linear output with the oxygen concentration. The temperature-dependence of its output can be explained by taking into account a mixed diffusion control mechanism of the ordinary and Knudsen diffusion. The operating principle, structure and performance of the sensor are discussed.

AB - A high-temperature oxygen sensor of limiting current with a porous layer on the cathode to limit the diffusion rate of oxygen is investigated and fabricated. The solid electrolyte is made of Yttria-doped stabilized zirconia (YSZ) and the porous platinum film electrode is deposited on the surface of YSZ. The relation between temperature and oxygen concentration is tested at 629 °-780 °C in a mixture of N2 and O2 with the oxygen concentration being 0-37%. Experimental results show a linear output with the oxygen concentration. The temperature-dependence of its output can be explained by taking into account a mixed diffusion control mechanism of the ordinary and Knudsen diffusion. The operating principle, structure and performance of the sensor are discussed.

KW - diffusion control

KW - limiting current

KW - oxygen sensor

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M3 - 期刊論文

AN - SCOPUS:1542705431

VL - 37

SP - 379

EP - 384

JO - Science in China (Scientia Sinica) Series A

JF - Science in China (Scientia Sinica) Series A

SN - 1001-6511

IS - 3

ER -

Oxygen sensor based on the principle of electrochemical pump

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Keywords

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