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

^*Corresponding author for this work

Computer, Electrical and Mathematical Sciences and Engineering

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

93 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 (H₂) at the operating temperature 200 °C with response time 150 s. The lowest detection of H₂ 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
DOIs	https://doi.org/10.1016/j.ijhydene.2018.09.162
State	Published - Dec 13 2018

Bibliographical note

Publisher Copyright:
© 2018 Hydrogen Energy Publications LLC

Keywords

CuO
Gas response
H
Nanostructure
Sensor
XRD

ASJC Scopus subject areas

Condensed Matter Physics
Energy Engineering and Power Technology
Fuel Technology
Renewable Energy, Sustainability and the Environment

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ijhydene.2018.09.162

Cite this

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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 (H2) at the operating temperature 200 °C with response time 150 s. The lowest detection of H2 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.",

keywords = "CuO, Gas response, H, Nanostructure, Sensor, XRD",

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

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month = dec,

day = "13",

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

language = "English (US)",

pages = "22705--22714",

journal = "International Journal of Hydrogen Energy",

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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

PY - 2018/12/13

Y1 - 2018/12/13

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 (H2) at the operating temperature 200 °C with response time 150 s. The lowest detection of H2 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 (H2) at the operating temperature 200 °C with response time 150 s. The lowest detection of H2 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.

KW - CuO

KW - Gas response

KW - H

KW - Nanostructure

KW - Sensor

KW - XRD

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DO - 10.1016/j.ijhydene.2018.09.162

M3 - Article

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SN - 0360-3199

SP - 22705

EP - 22714

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

ER -

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

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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