NiO의 첨가에 따른 α-Fe₂O₃ 나노입자 센서의 에탄올 가스 검출 특성 향상

In order to investigate the effect of NiO on the ethanol gas sensing performance of α-Fe2O3 nanoparticles, NiO and α-Fe2O3 nanoparticles are synthesized by hydrothermal method. The sensor with α-Fe2O3 and NiO nanoparticles mixed at an optimum ratio of 7:3 showed 3.8 times improved sensing performanc...

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Published inBiuletyn Uniejowski Vol. 49; no. 1; pp. 69 - 74
Main Authors 박성훈(Sunghoon Park), 강우승(Wooseung Kang)
Format Journal Article
LanguageKorean
Published 한국표면공학회 01.02.2016
Subjects
기계공학
Nanoparticles
Gas sensor
α-Fe₂O
Ethanol
NiO
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Summary:In order to investigate the effect of NiO on the ethanol gas sensing performance of α-Fe2O3 nanoparticles, NiO and α-Fe2O3 nanoparticles are synthesized by hydrothermal method. The sensor with α-Fe2O3 and NiO nanoparticles mixed at an optimum ratio of 7:3 showed 3.8 times improved sensing performance for 200ppm ethanol gas at 200oC. The enhanced gas sensing performance can be considered to be caused by pn heterojunction at the grain boundaries of α-Fe2O3 and NiO nanopartcles. KCI Citation Count: 0
Bibliography:http://journal.kisehome.or.kr/
G704-000261.2016.49.1.003
ISSN:1225-8024
2299-8403
2288-8403
DOI:10.5695/JKISE.2016.49.1.69