Paper Title:
Study of YSZ Amperometric Oxygen Sensor with a Dense Barrier Layer
  Abstract

A new type of amperometric oxygen sensor was developed by an approach of co-pressing and co-sintering YSZ solid electrolyte. A dense LSM+YSZ composite electrode which was used as both cathode and diffusion barrier. Pre-sintered composite and YSZ powders were dry-pressed together to form a sheet with dual-layer of LSM+YSZ/YSZ. The sheet was then sintered at 1450°C. The anode was made of Pt paste, which was printed on to the other side of YSZ. The experiment results showed that the oxygen sensor exhibited a quite low operating temperature. At 400°C, the limiting current appeared in the voltage from 0.7 to 1.2V and the limiting current was a good linear relationship with the oxygen concentration up to 10 %. The sensor has some excellent features such as a rapid response, no reference gas, simple configuration and low cost. Taken together with the chemical stability of the diffusion barrier, the sensor is suitable for the control of air-to-fuel ratio in lean-burn internal combustion engines.

  Info
Periodical
Key Engineering Materials (Volumes 280-283)
Edited by
Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li
Pages
431-434
DOI
10.4028/www.scientific.net/KEM.280-283.431
Citation
X. Shi, Y. Zhang, "Study of YSZ Amperometric Oxygen Sensor with a Dense Barrier Layer", Key Engineering Materials, Vols. 280-283, pp. 431-434, 2005
Online since
February 2007
Authors
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Hai Bin Li, Chang Rong Xia, Xiao Hong Fan, Xi He, Xiaoliang Wei, Guang Yao Meng
Abstract:In the development of intermediate temperature solid oxide fuel cell (IT-SOFC), the anode supported thin electrolyte with higher conductivity...
779
Authors: Wei Tao Bao, Yin Zhu Jiang, Guang Yan Zhu, Jian Feng Gao, Guang Yao Meng
Abstract:Dense YSZ thin film with a thickness from 2 to 15 µm on porous Ni-YSZ anode support was fabricated by a novel powder coating process. The...
435
Authors: Thanganathan Uma, Masayuki Nogami
Abstract:Sol-gel derived high proton conducting P2O5-SiO2-PMA (phosphomolybdic acid, H3PMo12O40 nH2O) glasses as electrolyte were used for the H2/O2...
149
Authors: Ming Zhou, Yan Wen Tian
Abstract:This experiment composes irreversible cells using ultrafine electrolyte materials and platinum slices, to measure the ionic conductivity the...
799
Authors: Min Zhang Zheng, Xiao Mei Liu
Abstract:To obtain more detail information about the cathode of La0.7Sr0.3Cu1-xFexO3-δ(x= 0.1,0.3,0.5,0.7,0.9)in IT-SOFCs, the cathode material...
666