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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제21권 제3호
- 발행연도
- 2020.1
- 수록면
- 343 - 350 (8page)
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Hydrogen sensing in automobile application is the need of the hour as fuel cell based hybrid electric vehicle is developingat a faster pace. Nickel ferrite (NiFe2O4) nanoparticles embedded reduced graphene oxide (rGO) prepared by a facilehydrothermal thermal process was employed as a chemiresistive sensor for the detection of H2 gas. To study themorphological and structural features the synthesized samples were characterized by transmission electron microscopy(TEM), X-Ray diffraction and Raman Spectroscopy. 50 nm cube shaped NiFe2O4 nanoparticles were found to bedistributed on few layered rGO nanosheets. The electrical conductivity of pristine n type NiFe2O4 and NiFe2O4/rGO weretested at various operating temperatures. Hydrogen sensing characteristics were measured by forming a thick film of thesynthesized nanocomposite paste on an alumina substrate. Sensing results showed that NiFe2O4/ 1% rGO showed themaximum response at an optimum temperature of 80 ºC towards 200 ppm of hydrogen gas among four variants. Integration of NiFe2O4 nanoparticles on rGO nanosheets has markedly enhanced the conductivity of the nanocomposite. The sensor showed a lower detection limit of 8 ppm with two linear ranges from 30-90 ppm and 100 to 700 ppm. Furtherthe sensor was tested for its selectivity and stability.
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참고문헌 (44)
참고문헌 신청
T. Hübert / 2011 / Sensor Actuat. B Chem 157:329~352
V. Tozzini / 2013 / Phys. Chem. Chem. Phys 15:80~89
P. Jena / 2011 / J. Phys. Chem. Lett 2:206~211
L. Schlapbach / 2011 / Materials for sustainable energy a collection of peer-reviewed research and review articles from nature publishing group :265~270
L. Boon-Brett / 2009 / Int. J. Hydrog. Energy 34:562~571
V. Tozzini / 2013 / Phys. Chem. Chem. Phys 15:80~89
P. Jena / 2011 / J. Phys. Chem. Lett 2:206~211
L. Schlapbach / 2011 / Materials for sustainable energy a collection of peer-reviewed research and review articles from nature publishing group :265~270
L. Boon-Brett / 2009 / Int. J. Hydrog. Energy 34:562~571
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