TY - JOUR
T1 - Metal-organic framework derived trimetallic oxides with dual sensing functions for ethanol
AU - Huang, Xin-Yu
AU - Kang, Ya-Ru
AU - Yan, Shu
AU - Elmarakbi, Ahmed
AU - Fu, Yongqing (Richard)
AU - Xie, Wan-Feng
N1 - Funding information: This work is supported by the National Natural Science Foundation of China (NSFC No. 41705098) and the International Exchange Grant (IEC/NSFC/201078) through the Royal Society and National Science Foundation of China (NSFC). This research was also supported by the Brain Pool program funded by the Ministry of Science and ICT through the National Research Foundation of Korea (No. 2021H1D3A2A01100019).
PY - 2023/5/14
Y1 - 2023/5/14
N2 - Metal-organic framework (MOF) derived metal oxide semiconductors have recently received extensive attention in gas sensing applications due to their high porosity and three-dimensional architectures. Still, challenges remain for MOF-derived materials, including low-cost and facile synthetic methods, rational nanostructure design, and superior gas-sensing performances. Herein, a series of Fe-MIL-88B-derived trimetallic FeCoNi oxides (FCN-MOS) with mesoporous structure was synthesized by a one-step hydrothermal reaction with the following calcination. The FCN-MOS system consists of three main phases: α Fe2O3 (n-type), CoFe2O4, and NiFe2O4 (p-type), and the nanostructure and pore size can be controlled by altering the content of α-Fe2O3, CoFe2O4, and NiFe2O4. The sensors based on FCN-MOS exhibit a high response of 71.9, a good selectivity towards 100 ppm ethanol at 250 ºC, and long-time stability up to 60 days. Additionally, the FCN-MOS-based sensors display a p-n transition gas-sensing behavior with the alteration of Fe/Co/Ni ratios.
AB - Metal-organic framework (MOF) derived metal oxide semiconductors have recently received extensive attention in gas sensing applications due to their high porosity and three-dimensional architectures. Still, challenges remain for MOF-derived materials, including low-cost and facile synthetic methods, rational nanostructure design, and superior gas-sensing performances. Herein, a series of Fe-MIL-88B-derived trimetallic FeCoNi oxides (FCN-MOS) with mesoporous structure was synthesized by a one-step hydrothermal reaction with the following calcination. The FCN-MOS system consists of three main phases: α Fe2O3 (n-type), CoFe2O4, and NiFe2O4 (p-type), and the nanostructure and pore size can be controlled by altering the content of α-Fe2O3, CoFe2O4, and NiFe2O4. The sensors based on FCN-MOS exhibit a high response of 71.9, a good selectivity towards 100 ppm ethanol at 250 ºC, and long-time stability up to 60 days. Additionally, the FCN-MOS-based sensors display a p-n transition gas-sensing behavior with the alteration of Fe/Co/Ni ratios.
UR - http://www.scopus.com/inward/record.url?scp=85153492121&partnerID=8YFLogxK
U2 - 10.1039/D3NR00841J
DO - 10.1039/D3NR00841J
M3 - Article
SN - 2040-3364
VL - 15
SP - 8181
EP - 8188
JO - Nanoscale
JF - Nanoscale
IS - 18
ER -