Nano-bitter gourd like structured CuO for enhanced hydrogen gas sensor application

Umesh T. Nakate; Gun Hee Lee; Rafiq Ahmad; Pramila Patil; Yoon-Bong Hahn; Y.T. Yu; Eun-kyung Suh

doi:10.1016/j.ijhydene.2018.09.162

Nano-bitter gourd like structured CuO for enhanced hydrogen gas sensor application

Umesh T. Nakate, Gun Hee Lee, Rafiq Ahmad, Pramila Patil, Yoon-Bong Hahn, Y.T. Yu, Eun-kyung Suh

Computer, Electrical and Mathematical Sciences and Engineering

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

72 Scopus citations

Abstract

Hydrogen gas sensing were investigated using nano-bitter gourd like structured CuO material synthesized via a chemical route. Morphology of CuO was revealed using FE-SEM and TEM image analysis. CuO phase confirmation and molecular structural fingerprint were verified by XRD and Raman analysis respectively. Elemental composition and atomic states of elements were investigated by EDS and XPS techniques respectively. A remarkable high gas response of 175% was recorded by CuO sensor towards 100 ppm hydrogen (H) at the operating temperature 200 °C with response time 150 s. The lowest detection of H was observed at 2 ppm concentration with the gas response of 5%. The gas response was studied as functions of different operating temperatures and concentrations. Transient gas response and stability were also confirmed for CuO sensor. Hydrogen sensing mechanism of CuO sensor was elucidated.

Original language	English (US)
Pages (from-to)	22705-22714
Number of pages	10
Journal	International Journal of Hydrogen Energy
Volume	43
Issue number	50
DOIs	https://doi.org/10.1016/j.ijhydene.2018.09.162
State	Published - Oct 28 2018

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10.1016/j.ijhydene.2018.09.162

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@article{8e2c9fe0c8384792914ad2868d9a435f,

title = "Nano-bitter gourd like structured CuO for enhanced hydrogen gas sensor application",

abstract = "Hydrogen gas sensing were investigated using nano-bitter gourd like structured CuO material synthesized via a chemical route. Morphology of CuO was revealed using FE-SEM and TEM image analysis. CuO phase confirmation and molecular structural fingerprint were verified by XRD and Raman analysis respectively. Elemental composition and atomic states of elements were investigated by EDS and XPS techniques respectively. A remarkable high gas response of 175% was recorded by CuO sensor towards 100 ppm hydrogen (H) at the operating temperature 200 °C with response time 150 s. The lowest detection of H was observed at 2 ppm concentration with the gas response of 5%. The gas response was studied as functions of different operating temperatures and concentrations. Transient gas response and stability were also confirmed for CuO sensor. Hydrogen sensing mechanism of CuO sensor was elucidated.",

author = "Nakate, {Umesh T.} and Lee, {Gun Hee} and Rafiq Ahmad and Pramila Patil and Yoon-Bong Hahn and Y.T. Yu and Eun-kyung Suh",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2018R1A2B6002316) and National Leading Research Laboratory program through the National Research Foundation (NRF) (NRF-2016R1A2B2016665) of Korea funded by the Ministry of Science, ICT & Future Planning. Authors also thank to Centre for University Research Facility (CURF) for FESEM and TEM images.",

year = "2018",

month = oct,

day = "28",

doi = "10.1016/j.ijhydene.2018.09.162",

language = "English (US)",

volume = "43",

pages = "22705--22714",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier",

number = "50",

}

TY - JOUR

T1 - Nano-bitter gourd like structured CuO for enhanced hydrogen gas sensor application

AU - Nakate, Umesh T.

AU - Lee, Gun Hee

AU - Ahmad, Rafiq

AU - Patil, Pramila

AU - Hahn, Yoon-Bong

AU - Yu, Y.T.

AU - Suh, Eun-kyung

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2018R1A2B6002316) and National Leading Research Laboratory program through the National Research Foundation (NRF) (NRF-2016R1A2B2016665) of Korea funded by the Ministry of Science, ICT & Future Planning. Authors also thank to Centre for University Research Facility (CURF) for FESEM and TEM images.

PY - 2018/10/28

Y1 - 2018/10/28

N2 - Hydrogen gas sensing were investigated using nano-bitter gourd like structured CuO material synthesized via a chemical route. Morphology of CuO was revealed using FE-SEM and TEM image analysis. CuO phase confirmation and molecular structural fingerprint were verified by XRD and Raman analysis respectively. Elemental composition and atomic states of elements were investigated by EDS and XPS techniques respectively. A remarkable high gas response of 175% was recorded by CuO sensor towards 100 ppm hydrogen (H) at the operating temperature 200 °C with response time 150 s. The lowest detection of H was observed at 2 ppm concentration with the gas response of 5%. The gas response was studied as functions of different operating temperatures and concentrations. Transient gas response and stability were also confirmed for CuO sensor. Hydrogen sensing mechanism of CuO sensor was elucidated.

AB - Hydrogen gas sensing were investigated using nano-bitter gourd like structured CuO material synthesized via a chemical route. Morphology of CuO was revealed using FE-SEM and TEM image analysis. CuO phase confirmation and molecular structural fingerprint were verified by XRD and Raman analysis respectively. Elemental composition and atomic states of elements were investigated by EDS and XPS techniques respectively. A remarkable high gas response of 175% was recorded by CuO sensor towards 100 ppm hydrogen (H) at the operating temperature 200 °C with response time 150 s. The lowest detection of H was observed at 2 ppm concentration with the gas response of 5%. The gas response was studied as functions of different operating temperatures and concentrations. Transient gas response and stability were also confirmed for CuO sensor. Hydrogen sensing mechanism of CuO sensor was elucidated.

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UR - https://www.sciencedirect.com/science/article/pii/S0360319918330568

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U2 - 10.1016/j.ijhydene.2018.09.162

DO - 10.1016/j.ijhydene.2018.09.162

M3 - Article

AN - SCOPUS:85055570669

SN - 0360-3199

VL - 43

SP - 22705

EP - 22714

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 50

ER -

Nano-bitter gourd like structured CuO for enhanced hydrogen gas sensor application

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