Experimental Study on TiO_2 Nanoparticles Prepared by Gaseous Detonation AITranslate
Abstract AITranslate
Using the premixed H2/Air as explosion source,TiO2 nanoparticles were prepared by gaseous detonation in a self-made explosion reaction tube.The variation law was discussed of the detonation pressure in the tube under different initial conditions（initial temperature of 25200℃and H2/Air mixing ratio of 0.20.8）.Particle size,composition of crystal phase and morphologies of TiO2 nanoparticles synthesized by detonation at different initial temperature and calcinated at high temperature were characterized by means of XRD and TEM.The results show that the end of the explosion reaction tube has the largest detonation pressure when the premixed H2/Air with the chemical equivalent ratio is employed as explosion source.The detonation pressure at the tube end is increased eventually increased by 39.03% with the increase of H2/Air mixing ratio,and the increasing rate firstly increases and then decreases.However,the detonation pressure at the tube end is reduced eventually by 36.86% with the initial environmental temperature increasing.The prepared TiO2 nanoparticles are mixed crystals of anatase and rutile,their grain size increases at first and then decreases with the increase of initial temperature,and the anatase phase is gradually reduced.The phase-transition temperature from anatase to rutile is 700900 ℃ during high temperature calcination of detonation products,and the grain size is gradually increased with the rise of calcination temperature.
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Basic Information:
DOI：
Chinese Library Classification Number:TQ134.11[化学工程—无机化工]
Citation Information:
Using the premixed H2/Air as explosion source,TiO2 nanoparticles were prepared by gaseous detonation in a self-made explosion reaction tube.The variation law was discussed of the detonation pressure in the tube under different initial conditions（initial temperature of 25200℃and H2/Air mixing ratio of 0.20.8）.Particle size,composition of crystal phase and morphologies of TiO2 nanoparticles synthesized by detonation at different initial temperature and calcinated at high temperature were characterized by means of XRD and TEM.The results show that the end of the explosion reaction tube has the largest detonation pressure when the premixed H2/Air with the chemical equivalent ratio is employed as explosion source.The detonation pressure at the tube end is increased eventually increased by 39.03% with the increase of H2/Air mixing ratio,and the increasing rate firstly increases and then decreases.However,the detonation pressure at the tube end is reduced eventually by 36.86% with the initial environmental temperature increasing.The prepared TiO2 nanoparticles are mixed crystals of anatase and rutile,their grain size increases at first and then decreases with the increase of initial temperature,and the anatase phase is gradually reduced.The phase-transition temperature from anatase to rutile is 700900 ℃ during high temperature calcination of detonation products,and the grain size is gradually increased with the rise of calcination temperature.
quote
| GB/T 7714-2015 | [1] QU Yan-dong, SUN Cong-huang, ZHU Kai-ze, et al. Experimental Study on TiO_2 Nanoparticles Prepared by Gaseous Detonation[J]. Rare Metals and Cemented Carbides, 2017(6): 48-53. |
| MLA | [1] QU Yan-dong, et al., "Experimental Study on TiO_2 Nanoparticles Prepared by Gaseous Detonation." Rare Metals and Cemented Carbides, no. 6, 2017, pp. 48-53. |
| APA | [1] QU Yan-dong, SUN Cong-huang, ZHU Kai-ze, KONG Xiang-qing, & ZHANG Wen-jiao. (2017). Experimental Study on TiO_2 Nanoparticles Prepared by Gaseous Detonation. Rare Metals and Cemented Carbides(6), 48-53. |
| IEEE | [1] QU Yan-dong, SUN Cong-huang, ZHU Kai-ze, KONG Xiang-qing, and ZHANG Wen-jiao, "Experimental Study on TiO_2 Nanoparticles Prepared by Gaseous Detonation," Rare Metals and Cemented Carbides, no. 6, pp. 48-53, 2017. keywords: {TiO2 nanoparticle;gaseous detonation;crystal structure;morphology characteristic;detonation pressure} |