Gold Sensitized In2O3 nanocubes for ppb level NO2 gas sensing

S. P. Patil; V. L. Patil; J. H. Kim; S. H. Park; U. Chalapathi; Deepak R. Patil; P. S. Patil

doi:10.1016/j.ceramint.2023.06.273

Gold Sensitized In₂O₃ nanocubes for ppb level NO₂ gas sensing

S. P. Patil
, V. L. Patil
, J. H. Kim
, S. H. Park
, U. Chalapathi
, Deepak R. Patil
, P. S. Patil

Department of Physics

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

12 Scopus citations

Abstract

Hydrothermally synthesized In₂O₃ nanocubes were sensitized with Au and gas sensing performance is analyzed. The Au sensitization was done using sputtering and gas sensing performance is studied as function of different sputtering time. The catalytic activity of Au particles on In₂O₃ films increases with the sputtering time but acquires saturation at high sputtering time. The Au sensitization with sputtering time of 5 s was found to show improved sensor response (R_g/R_a) of 8435 than the sensor response of 6876 for pure In₂O₃ film. The improved sensor response was attributed to the catalytic activity of Au particles on the In₂O₃ film surface. In addition, Au sensitized In₂O₃ also demonstrates the sensor response at 60 ppb.

Original language	English
Pages (from-to)	30170-30177
Number of pages	8
Journal	Ceramics International
Volume	49
Issue number	18
DOIs	https://doi.org/10.1016/j.ceramint.2023.06.273
State	Published - 15 Sep 2023

Keywords

Gas sensing
NO gas
Response time
Sensitization

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10.1016/j.ceramint.2023.06.273

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title = "Gold Sensitized In2O3 nanocubes for ppb level NO2 gas sensing",

abstract = "Hydrothermally synthesized In2O3 nanocubes were sensitized with Au and gas sensing performance is analyzed. The Au sensitization was done using sputtering and gas sensing performance is studied as function of different sputtering time. The catalytic activity of Au particles on In2O3 films increases with the sputtering time but acquires saturation at high sputtering time. The Au sensitization with sputtering time of 5 s was found to show improved sensor response (Rg/Ra) of 8435 than the sensor response of 6876 for pure In2O3 film. The improved sensor response was attributed to the catalytic activity of Au particles on the In2O3 film surface. In addition, Au sensitized In2O3 also demonstrates the sensor response at 60 ppb.",

keywords = "Gas sensing, NO gas, Response time, Sensitization",

author = "Patil, \{S. P.\} and Patil, \{V. L.\} and Kim, \{J. H.\} and Park, \{S. H.\} and U. Chalapathi and Patil, \{Deepak R.\} and Patil, \{P. S.\}",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier Ltd and Techna Group S.r.l.",

year = "2023",

month = sep,

day = "15",

doi = "10.1016/j.ceramint.2023.06.273",

language = "English",

volume = "49",

pages = "30170--30177",

journal = "Ceramics International",

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TY - JOUR

T1 - Gold Sensitized In2O3 nanocubes for ppb level NO2 gas sensing

AU - Patil, S. P.

AU - Patil, V. L.

AU - Kim, J. H.

AU - Park, S. H.

AU - Chalapathi, U.

AU - Patil, Deepak R.

AU - Patil, P. S.

PY - 2023/9/15

Y1 - 2023/9/15

N2 - Hydrothermally synthesized In2O3 nanocubes were sensitized with Au and gas sensing performance is analyzed. The Au sensitization was done using sputtering and gas sensing performance is studied as function of different sputtering time. The catalytic activity of Au particles on In2O3 films increases with the sputtering time but acquires saturation at high sputtering time. The Au sensitization with sputtering time of 5 s was found to show improved sensor response (Rg/Ra) of 8435 than the sensor response of 6876 for pure In2O3 film. The improved sensor response was attributed to the catalytic activity of Au particles on the In2O3 film surface. In addition, Au sensitized In2O3 also demonstrates the sensor response at 60 ppb.

AB - Hydrothermally synthesized In2O3 nanocubes were sensitized with Au and gas sensing performance is analyzed. The Au sensitization was done using sputtering and gas sensing performance is studied as function of different sputtering time. The catalytic activity of Au particles on In2O3 films increases with the sputtering time but acquires saturation at high sputtering time. The Au sensitization with sputtering time of 5 s was found to show improved sensor response (Rg/Ra) of 8435 than the sensor response of 6876 for pure In2O3 film. The improved sensor response was attributed to the catalytic activity of Au particles on the In2O3 film surface. In addition, Au sensitized In2O3 also demonstrates the sensor response at 60 ppb.

KW - Gas sensing

KW - NO gas

KW - Response time

KW - Sensitization

UR - https://www.scopus.com/pages/publications/85166939050

U2 - 10.1016/j.ceramint.2023.06.273

DO - 10.1016/j.ceramint.2023.06.273

M3 - Article

AN - SCOPUS:85166939050

SN - 0272-8842

VL - 49

SP - 30170

EP - 30177

JO - Ceramics International

JF - Ceramics International

IS - 18

ER -

Gold Sensitized In₂O₃ nanocubes for ppb level NO₂ gas sensing

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Keywords

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