Role of sensitizers in imparting the selective response of SnO2/RGO based nanohybrids towards H2S, NO2 and H2

Bhagyashri Bhangare, Niranjan S. Ramgir, Ankita Pathak, K. R. Sinju, A. K. Debnath, S. Jagtap, N. Suzuki, K. P. Muthe, C. Terashima, D. K. Aswal, S. W. Gosavi, A. Fujishima

Research output: Contribution to journalArticle

Abstract

Excellent electrical and sensing properties of reduced graphene oxide (RGO) and SnO2 have enabled fabrication of nanohybrid sensor with improved response characteristics. Nanohybrids of these two materials harnessing the advantages of the individual components thereby enables tailor made sensors for specific target gases. In the present work, using metal and metal oxide sensitizers, the response of the RGO nanohybrids was systematically tailored towards H2S, NO2 and H2 gases. Pristine SnO2/RGO nanohybrids demonstrated a highly sensitive and selective response towards H2S. It exhibited a sensor response of 3.7 towards 40 ppm of H2S at 200 °C. Incorporation of Pt and Pd into the nanohybrid matrix has resulted in an enhanced and selective response towards H2 and NO2, respectively. The maximum response of 124 and 49 were obtained towards 2 and 1.6% ofNO2 and H2, respectively. The lowest detection limits were 0.2%, 0.4 and 1 ppm for H2, NO2 and H2S, respectively.

Original languageEnglish
Article number104726
JournalMaterials Science in Semiconductor Processing
Volume105
DOIs
Publication statusPublished - Jan 2020

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Oxides
Graphene
graphene
oxides
Sensors
Gases
Metals
sensors
gases
Fabrication
metal oxides
electrical properties
fabrication
matrices
metals

Keywords

  • Chemiresistive sensors
  • Nanohybrids
  • Pd
  • Pt
  • SnO/RGO

Cite this

Bhangare, Bhagyashri ; Ramgir, Niranjan S. ; Pathak, Ankita ; Sinju, K. R. ; Debnath, A. K. ; Jagtap, S. ; Suzuki, N. ; Muthe, K. P. ; Terashima, C. ; Aswal, D. K. ; Gosavi, S. W. ; Fujishima, A. / Role of sensitizers in imparting the selective response of SnO2/RGO based nanohybrids towards H2S, NO2 and H2 In: Materials Science in Semiconductor Processing. 2020 ; Vol. 105.
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abstract = "Excellent electrical and sensing properties of reduced graphene oxide (RGO) and SnO2 have enabled fabrication of nanohybrid sensor with improved response characteristics. Nanohybrids of these two materials harnessing the advantages of the individual components thereby enables tailor made sensors for specific target gases. In the present work, using metal and metal oxide sensitizers, the response of the RGO nanohybrids was systematically tailored towards H2S, NO2 and H2 gases. Pristine SnO2/RGO nanohybrids demonstrated a highly sensitive and selective response towards H2S. It exhibited a sensor response of 3.7 towards 40 ppm of H2S at 200 °C. Incorporation of Pt and Pd into the nanohybrid matrix has resulted in an enhanced and selective response towards H2 and NO2, respectively. The maximum response of 124 and 49 were obtained towards 2 and 1.6{\%} ofNO2 and H2, respectively. The lowest detection limits were 0.2{\%}, 0.4 and 1 ppm for H2, NO2 and H2S, respectively.",
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author = "Bhagyashri Bhangare and Ramgir, {Niranjan S.} and Ankita Pathak and Sinju, {K. R.} and Debnath, {A. K.} and S. Jagtap and N. Suzuki and Muthe, {K. P.} and C. Terashima and Aswal, {D. K.} and Gosavi, {S. W.} and A. Fujishima",
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Bhangare, B, Ramgir, NS, Pathak, A, Sinju, KR, Debnath, AK, Jagtap, S, Suzuki, N, Muthe, KP, Terashima, C, Aswal, DK, Gosavi, SW & Fujishima, A 2020, 'Role of sensitizers in imparting the selective response of SnO2/RGO based nanohybrids towards H2S, NO2 and H2 ', Materials Science in Semiconductor Processing, vol. 105, 104726. https://doi.org/10.1016/j.mssp.2019.104726

Role of sensitizers in imparting the selective response of SnO2/RGO based nanohybrids towards H2S, NO2 and H2 . / Bhangare, Bhagyashri; Ramgir, Niranjan S.; Pathak, Ankita; Sinju, K. R.; Debnath, A. K.; Jagtap, S.; Suzuki, N.; Muthe, K. P.; Terashima, C.; Aswal, D. K.; Gosavi, S. W.; Fujishima, A.

In: Materials Science in Semiconductor Processing, Vol. 105, 104726, 01.2020.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Role of sensitizers in imparting the selective response of SnO2/RGO based nanohybrids towards H2S, NO2 and H2

AU - Bhangare, Bhagyashri

AU - Ramgir, Niranjan S.

AU - Pathak, Ankita

AU - Sinju, K. R.

AU - Debnath, A. K.

AU - Jagtap, S.

AU - Suzuki, N.

AU - Muthe, K. P.

AU - Terashima, C.

AU - Aswal, D. K.

AU - Gosavi, S. W.

AU - Fujishima, A.

PY - 2020/1

Y1 - 2020/1

N2 - Excellent electrical and sensing properties of reduced graphene oxide (RGO) and SnO2 have enabled fabrication of nanohybrid sensor with improved response characteristics. Nanohybrids of these two materials harnessing the advantages of the individual components thereby enables tailor made sensors for specific target gases. In the present work, using metal and metal oxide sensitizers, the response of the RGO nanohybrids was systematically tailored towards H2S, NO2 and H2 gases. Pristine SnO2/RGO nanohybrids demonstrated a highly sensitive and selective response towards H2S. It exhibited a sensor response of 3.7 towards 40 ppm of H2S at 200 °C. Incorporation of Pt and Pd into the nanohybrid matrix has resulted in an enhanced and selective response towards H2 and NO2, respectively. The maximum response of 124 and 49 were obtained towards 2 and 1.6% ofNO2 and H2, respectively. The lowest detection limits were 0.2%, 0.4 and 1 ppm for H2, NO2 and H2S, respectively.

AB - Excellent electrical and sensing properties of reduced graphene oxide (RGO) and SnO2 have enabled fabrication of nanohybrid sensor with improved response characteristics. Nanohybrids of these two materials harnessing the advantages of the individual components thereby enables tailor made sensors for specific target gases. In the present work, using metal and metal oxide sensitizers, the response of the RGO nanohybrids was systematically tailored towards H2S, NO2 and H2 gases. Pristine SnO2/RGO nanohybrids demonstrated a highly sensitive and selective response towards H2S. It exhibited a sensor response of 3.7 towards 40 ppm of H2S at 200 °C. Incorporation of Pt and Pd into the nanohybrid matrix has resulted in an enhanced and selective response towards H2 and NO2, respectively. The maximum response of 124 and 49 were obtained towards 2 and 1.6% ofNO2 and H2, respectively. The lowest detection limits were 0.2%, 0.4 and 1 ppm for H2, NO2 and H2S, respectively.

KW - Chemiresistive sensors

KW - Nanohybrids

KW - Pd

KW - Pt

KW - SnO/RGO

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U2 - 10.1016/j.mssp.2019.104726

DO - 10.1016/j.mssp.2019.104726

M3 - Article

AN - SCOPUS:85072063886

VL - 105

JO - Materials Science in Semiconductor Processing

JF - Materials Science in Semiconductor Processing

SN - 1369-8001

M1 - 104726

ER -