TY - JOUR
T1 - Cu-doped α-Fe2O3 hierarchical microcubes
T2 - Synthesis and gas sensing properties
AU - Sun, Peng
AU - Wang, Chen
AU - Zhou, Xin
AU - Cheng, Pengfei
AU - Shimanoe, Kengo
AU - Lu, Geyu
AU - Yamazoe, Noboru
N1 - Funding Information:
This work is supported by the National Nature Science Foundation of China (Nos. 61074172 , 61134010 , 61374218 and 61327804 ) and Program for Chang Jiang Scholars and Innovative Research Team in University (No. IRT13018 ). National High-Tech Research and Development Program of China (863 Program, No. 2013AA030902 ).
PY - 2014/3/31
Y1 - 2014/3/31
N2 - Monodisperse and uniform pure and Cu-doped α-Fe2O 3 cubes with a hierarchical architecture piled up nanoparticles as secondary units were obtained via a low-cost and environmentally friendly hydrothermal route. The structure and morphology of the as-synthesized products were characterized by X-ray diffraction (XRD), field-emission electron microscopy (FESEM), and transmission electron microscopy (TEM). The XRD results indicated that the lattice constants of doped samples were slightly smaller than that of the pure sample due to Cu incorporation. A comparative gas sensing study between the Cu-doped α-Fe2O3 and pure α-Fe2O3 cubes was performed to demonstrate the superior gas sensing properties of the doped samples. It was found that the sensor based on Cu-doped α-Fe2O3 (3.0 wt%) had a response of 19-100 ppm C2H5OH, which was about three times higher than that of the pure α-Fe2O3 nanostructures at the same operating temperature (225 C).
AB - Monodisperse and uniform pure and Cu-doped α-Fe2O 3 cubes with a hierarchical architecture piled up nanoparticles as secondary units were obtained via a low-cost and environmentally friendly hydrothermal route. The structure and morphology of the as-synthesized products were characterized by X-ray diffraction (XRD), field-emission electron microscopy (FESEM), and transmission electron microscopy (TEM). The XRD results indicated that the lattice constants of doped samples were slightly smaller than that of the pure sample due to Cu incorporation. A comparative gas sensing study between the Cu-doped α-Fe2O3 and pure α-Fe2O3 cubes was performed to demonstrate the superior gas sensing properties of the doped samples. It was found that the sensor based on Cu-doped α-Fe2O3 (3.0 wt%) had a response of 19-100 ppm C2H5OH, which was about three times higher than that of the pure α-Fe2O3 nanostructures at the same operating temperature (225 C).
UR - http://www.scopus.com/inward/record.url?scp=84891509661&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84891509661&partnerID=8YFLogxK
U2 - 10.1016/j.snb.2013.12.015
DO - 10.1016/j.snb.2013.12.015
M3 - Article
AN - SCOPUS:84891509661
SN - 0925-4005
VL - 193
SP - 616
EP - 622
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
ER -