【摘 要】
：
ZnO thin films prepared by using quantitative filter paper as a template and Zn(CHsCO2)2·2H2O ethanol precursor solution were characterized by scanning electro
【机 构】
：
School of Chemistry and Environmental Engineering,Institute of Process Engineering,Graduate Universi
论文部分内容阅读
ZnO thin films prepared by using quantitative filter paper as a template and Zn(CHsCO2)2·2H2O ethanol precursor solution were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The effects of sample calcination temperature, precursor concentration and filter paper types were studied, and the growth process was investigated by infra-red (IR) spectroscopy and thermogravimettic analysis/differential thermal analysis (TGA/DTA). The results show that samples soaked in a 1.5 mol/L Zn( CH3 CO2 )2.2 H2O ethanol solution and calcined at 600 ℃ yield ZnO films of uniform particle size, approximately 30, 40 and 50 nm, for fast-, medium- and slow-speed filter papers, respectively. The formaldehyde gas sensing properties of the ZnO nanoparticles were tested, showing that the material prepared from fast-speed filter paper has a higher response to 120-205 ppm formaldehyde at 400 ℃ than that prepared from medium- or slow-speed paper, which depends on the particle size.
其他文献
A fast and convenient C-S bond formation reaction was achieved catalyzed by CuI/L-proline in aqueous two-phase system providing a simple method for synthesis of
A novel solid-gas route to prepare LaMnO3 perovskite catalysts for methane combustion has been developed. The method was carried out using a polyvinylpyrrolidon
Simultaneous multi-element extraction has been increasing worldwide to improve soil laboratory testing quality and efficiency.This study sought to investigate t
The Cu/SiO2 catalysts were in situ synthesized by the hydrolysis of tetraethyl orthosilicate (TEOS) in one phase solution using ethanol as co-solvent or TEOS/H2
Time-of-flight(TOF) mass spectra of molecular butanone clusters were measured under the irradiation of photons at 355 and 118 nm. Butanone molecular parent ion
This paper presents an overview of TianHe-1A (TH-1A) supercomputer, which is built by National University of Defense Technology of China (NUDT). TH-1A adopts a
Four new vanadium substituted Dawson-type heteropoly acids H[PMoVO]·39HO(1), H8[P2Mo16V2O62]·41H2O(2) H9[P2Mo15V3o62]·51H2O(3)and H8[P2Mo14V4O62H2]·45H2O(4)
In this paper, we study a one-dimensional motion of viscous gas near vacuum. We are interested in the case that the gas is in contact with the vacuum at a finit
ZSM-5 zeolite catalyst modified by a trace of metal cations shows high activity and high selectivity for the reaction of methanol to olefins (MTO), but it incli