High performance mixed potential type No2 gas sensor based on porous YSZ layer formed with graphite doping

Hao Hong; Jianwen Sun; Cinan Wu; Zewen Liu

doi:10.3390/s19153337

High performance mixed potential type No₂ gas sensor based on porous YSZ layer formed with graphite doping

Hao Hong, Jianwen Sun, Cinan Wu, Zewen Liu^*

^*Corresponding author for this work

Electronic Components, Technology and Materials

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

5 Citations (Scopus)

55 Downloads (Pure)

Abstract

High performance mixed potential type NO₂ sensors using porous yttria-stabilized zirconia (YSZ) layers doped with different concentration graphite as solid electrolyte and LaFeO₃ as sensing electrode were fabricated and characterized. LaFeO₃ was prepared by a typical citrate sol–gel method and characterized using XRD. The surface morphology and porosity of porous YSZ layers were characterized by field emission scanning electron microscope (FESEM). The sensor doped with 3 wt% graphite shows the highest response (−76.4 mV to 80 ppm NO₂) and the response is linearly dependent on the logarithm of NO₂ concentration in the range of 10–200 ppm. The sensor measurement results also present good repeatability and cross-sensitivity.

Original language	English
Article number	3337
Pages (from-to)	1-11
Number of pages	11
Journal	Sensors (Switzerland)
Volume	19
Issue number	15
DOIs	https://doi.org/10.3390/s19153337
Publication status	Published - 2019

Keywords

Graphite
Mixed potential
NO
Porous YSZ layers

Access to Document

10.3390/s19153337

sensors-19-03337-v2Final published version, 2.33 MBLicence: CC BY

Cite this

@article{f1d1b060f7a944c784b4739cb132fb9e,

title = "High performance mixed potential type No2 gas sensor based on porous YSZ layer formed with graphite doping",

abstract = "High performance mixed potential type NO2 sensors using porous yttria-stabilized zirconia (YSZ) layers doped with different concentration graphite as solid electrolyte and LaFeO3 as sensing electrode were fabricated and characterized. LaFeO3 was prepared by a typical citrate sol–gel method and characterized using XRD. The surface morphology and porosity of porous YSZ layers were characterized by field emission scanning electron microscope (FESEM). The sensor doped with 3 wt% graphite shows the highest response (−76.4 mV to 80 ppm NO2) and the response is linearly dependent on the logarithm of NO2 concentration in the range of 10–200 ppm. The sensor measurement results also present good repeatability and cross-sensitivity.",

keywords = "Graphite, Mixed potential, NO, Porous YSZ layers",

author = "Hao Hong and Jianwen Sun and Cinan Wu and Zewen Liu",

year = "2019",

doi = "10.3390/s19153337",

language = "English",

volume = "19",

pages = "1--11",

journal = "Sensors (Switzerland)",

issn = "1424-8220",

publisher = "MDPI",

number = "15",

}

TY - JOUR

T1 - High performance mixed potential type No2 gas sensor based on porous YSZ layer formed with graphite doping

AU - Hong, Hao

AU - Sun, Jianwen

AU - Wu, Cinan

AU - Liu, Zewen

PY - 2019

Y1 - 2019

N2 - High performance mixed potential type NO2 sensors using porous yttria-stabilized zirconia (YSZ) layers doped with different concentration graphite as solid electrolyte and LaFeO3 as sensing electrode were fabricated and characterized. LaFeO3 was prepared by a typical citrate sol–gel method and characterized using XRD. The surface morphology and porosity of porous YSZ layers were characterized by field emission scanning electron microscope (FESEM). The sensor doped with 3 wt% graphite shows the highest response (−76.4 mV to 80 ppm NO2) and the response is linearly dependent on the logarithm of NO2 concentration in the range of 10–200 ppm. The sensor measurement results also present good repeatability and cross-sensitivity.

AB - High performance mixed potential type NO2 sensors using porous yttria-stabilized zirconia (YSZ) layers doped with different concentration graphite as solid electrolyte and LaFeO3 as sensing electrode were fabricated and characterized. LaFeO3 was prepared by a typical citrate sol–gel method and characterized using XRD. The surface morphology and porosity of porous YSZ layers were characterized by field emission scanning electron microscope (FESEM). The sensor doped with 3 wt% graphite shows the highest response (−76.4 mV to 80 ppm NO2) and the response is linearly dependent on the logarithm of NO2 concentration in the range of 10–200 ppm. The sensor measurement results also present good repeatability and cross-sensitivity.

KW - Graphite

KW - Mixed potential

KW - NO

KW - Porous YSZ layers

UR - http://www.scopus.com/inward/record.url?scp=85070487359&partnerID=8YFLogxK

U2 - 10.3390/s19153337

DO - 10.3390/s19153337

M3 - Article

C2 - 31366065

SN - 1424-8220

VL - 19

SP - 1

EP - 11

JO - Sensors (Switzerland)

JF - Sensors (Switzerland)

IS - 15

M1 - 3337

ER -

High performance mixed potential type No₂ gas sensor based on porous YSZ layer formed with graphite doping

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this