首页|(162911)General synthesis of porous spinel gallate nanospheres for selective and quick detection of formaldehyde
(162911)General synthesis of porous spinel gallate nanospheres for selective and quick detection of formaldehyde
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NSTL
Elsevier
Spinel metal oxides, prepared at high temperature, have shown excellent gas sensing properties among metal oxide sensing materials. Herein, a series of porous spinel gallate nanospheres, including CdGa_2O_4, NiGa_2O_4, CoGa_2O_4, CuGa_2O_4, ZnGa_2O_4, and MgGa_2O_4 were prepared by solvothermal method and followed low temperature calcination. XRD, SEM, XPS and N_2 adsorption-desorption have been carried out to determine their structure, morphology, chemical state and surface area, respectively. These nanospheres are all composed of tiny nanoparticles, giving meso-porous characters. Furthermore, the sensor based on CdGa_2O_4 exhibits excellent formaldehyde sensing performance, including good selectivity, short response time, and excellent stability at the low working temperature of 120 °C.
Spinel metal oxideGas sensorSolvothermal
Jingjing Zheng、Xiaotian Li、Qihua Liang
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College of Materials Science and Engineering, Jilin University, Changchun 13012, PR China
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
NSTL
Elsevier
