TY - JOUR
T1 - Hybrid organic-inorganic composite based on electroactive aniline trimer decorated MIL-88B(Fe) as hydrogen sulfide sensor
AU - Yan, Minsi
AU - Wang, Wanyi
AU - Chittibabu, Dinesh Kumar Dhanthala
AU - Chen, Hongyu
AU - Chen, Hsin Tsung
AU - Lin, Chia Her
AU - Yeh, Jui Ming
N1 - Publisher Copyright:
© 2024 Elsevier B.V.
PY - 2025/1/1
Y1 - 2025/1/1
N2 - This study presents a novel approach to enhancing MIL-88B(Fe) for H₂S sensing by incorporating aniline trimer (ACAT). The successful synthesis and comprehensive characterization of ACAT, MIL-88B(Fe), and their composite, ACAT-MIL-88B(Fe), are detailed. The ACAT-MIL-88B(Fe) sensor demonstrates significantly superior performance, with a sensitivity increase to 643.5 % at 9–10 ppm H₂S and a rapid response time of 288 seconds. It maintains high sensitivity (450 % response) even at 90 % relative humidity and shows excellent selectivity for H₂S over other gases. Stability tests confirm over 600 % responsiveness over 16 days. Density Functional Theory (DFT) calculations validate that H₂S adsorption is most stable at the Fe site of MIL-88B(Fe), with ACAT enhancing this interaction. This innovative sensor holds promise for highly sensitive, selective, and stable H₂S detection in industrial applications.
AB - This study presents a novel approach to enhancing MIL-88B(Fe) for H₂S sensing by incorporating aniline trimer (ACAT). The successful synthesis and comprehensive characterization of ACAT, MIL-88B(Fe), and their composite, ACAT-MIL-88B(Fe), are detailed. The ACAT-MIL-88B(Fe) sensor demonstrates significantly superior performance, with a sensitivity increase to 643.5 % at 9–10 ppm H₂S and a rapid response time of 288 seconds. It maintains high sensitivity (450 % response) even at 90 % relative humidity and shows excellent selectivity for H₂S over other gases. Stability tests confirm over 600 % responsiveness over 16 days. Density Functional Theory (DFT) calculations validate that H₂S adsorption is most stable at the Fe site of MIL-88B(Fe), with ACAT enhancing this interaction. This innovative sensor holds promise for highly sensitive, selective, and stable H₂S detection in industrial applications.
KW - Adsorption energy
KW - Aniline trimer
KW - Density functional theory
KW - HS gas sensors
KW - Metal organic framework
UR - https://www.scopus.com/pages/publications/85204474746
UR - https://www.scopus.com/pages/publications/85204474746#tab=citedBy
U2 - 10.1016/j.snb.2024.136659
DO - 10.1016/j.snb.2024.136659
M3 - Article
AN - SCOPUS:85204474746
SN - 0925-4005
VL - 422
JO - Sensors and Actuators B: Chemical
JF - Sensors and Actuators B: Chemical
M1 - 136659
ER -