TY - JOUR
T1 - A way to sense H2S gas using nanostructured Zinc-Stannate (Zn2SnO4) ternary oxide
AU - Sharanu,
AU - Kompa, Akshayakumar
AU - Kekuda, Dhananjaya
AU - Rao, K. Mohan
N1 - Publisher Copyright:
© 2025 Elsevier B.V.
PY - 2025/3
Y1 - 2025/3
N2 - The sensitive detection of hydrogen sulfide (H2S) gas has drawn much attention these days for consideration of health concerns. Herein we fabricate Zn2SnO4 (ZTO) sensing film by sol–gel spin coating method for low ppm H2S sensing. A highly crystalline thin film consisting predominantly of Zn2SnO4 (98.80 %), with a minor phase of ZnO (1.20 %), features a rough surface characterized by nanorods and hexagonal-shaped nanostructures. These unique morphological features enhance the product's sensing capability. A detailed study of the phase and chemical composition of the final compound was analysed before considering the material for sensing. Post-deposited films demonstrated high selectivity toward H2S gas over other test gases. In detecting this gas, ZTO exhibited a low response time of 10 s to 7 ppm of H2S gas at 200 °C operating temperature. A detailed sensing mechanism based on adsorption/desorption mechanism was explained for rapid response of H2S gas sensing. In addition, the role of intrinsic defects like oxygen vacancy in this activity was also detailed.
AB - The sensitive detection of hydrogen sulfide (H2S) gas has drawn much attention these days for consideration of health concerns. Herein we fabricate Zn2SnO4 (ZTO) sensing film by sol–gel spin coating method for low ppm H2S sensing. A highly crystalline thin film consisting predominantly of Zn2SnO4 (98.80 %), with a minor phase of ZnO (1.20 %), features a rough surface characterized by nanorods and hexagonal-shaped nanostructures. These unique morphological features enhance the product's sensing capability. A detailed study of the phase and chemical composition of the final compound was analysed before considering the material for sensing. Post-deposited films demonstrated high selectivity toward H2S gas over other test gases. In detecting this gas, ZTO exhibited a low response time of 10 s to 7 ppm of H2S gas at 200 °C operating temperature. A detailed sensing mechanism based on adsorption/desorption mechanism was explained for rapid response of H2S gas sensing. In addition, the role of intrinsic defects like oxygen vacancy in this activity was also detailed.
UR - https://www.scopus.com/pages/publications/85217892227
UR - https://www.scopus.com/pages/publications/85217892227#tab=citedBy
U2 - 10.1016/j.microc.2025.112989
DO - 10.1016/j.microc.2025.112989
M3 - Article
AN - SCOPUS:85217892227
SN - 0026-265X
VL - 210
JO - Microchemical Journal
JF - Microchemical Journal
M1 - 112989
ER -