Experimental Study on Preparation of ZrO_2 Hollow Ball by Hydrothermal Synthesis AITranslate
Abstract AITranslate
Dispersed carbon balls were prepared by hydrothermal synthesis with sucrose as raw material at first, and then they were used as the template to prepare ZrO2＋/carbon ball composite by solution adsorp- tion. Finally, carbon ball template was removed by calcination to synthesize ZrO2 hollow balls. The effects were studied of adsorbing conditions on ZrO2＋ adsorption and heating rate of calcination on ZrO2 hollow ball forming. The results show that the adsorption of Zr4＋ has the best effect and Zr4＋ adsorption amount is 2 114 mg/g carbon ball under the optimal conditions as follows： carbon ball particle size of about 400 nm,ethanol concentration of 25 % （volume fraction）, ZrO2＋ concentration of 0.4 mol/L, adsorption tem- perature of 70 ℃ and solution pH of 0.7. When the heating rate of calcination for carbon template removal is controlled at 2 ℃/min, dispersed ZrO2 hollow balls can be obtained. Too high heating rate of calcination leads to aggregation of some ZrO2 hollow balls.
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Basic Information:
DOI：
Chinese Library Classification Number:TF125.4[冶金工程—粉末冶金]
Citation Information:
Dispersed carbon balls were prepared by hydrothermal synthesis with sucrose as raw material at first, and then they were used as the template to prepare ZrO2＋/carbon ball composite by solution adsorp- tion. Finally, carbon ball template was removed by calcination to synthesize ZrO2 hollow balls. The effects were studied of adsorbing conditions on ZrO2＋ adsorption and heating rate of calcination on ZrO2 hollow ball forming. The results show that the adsorption of Zr4＋ has the best effect and Zr4＋ adsorption amount is 2 114 mg/g carbon ball under the optimal conditions as follows： carbon ball particle size of about 400 nm,ethanol concentration of 25 % （volume fraction）, ZrO2＋ concentration of 0.4 mol/L, adsorption tem- perature of 70 ℃ and solution pH of 0.7. When the heating rate of calcination for carbon template removal is controlled at 2 ℃/min, dispersed ZrO2 hollow balls can be obtained. Too high heating rate of calcination leads to aggregation of some ZrO2 hollow balls.
quote
| GB/T 7714-2015 | [1] GUO Jin-lei, SHEN Shao-bo, ZHAO Ying-shi, et al. Experimental Study on Preparation of ZrO_2 Hollow Ball by Hydrothermal Synthesis[J]. Rare Metals and Cemented Carbides, 2017(2): 55-59. |
| MLA | [1] GUO Jin-lei, et al., "Experimental Study on Preparation of ZrO_2 Hollow Ball by Hydrothermal Synthesis." Rare Metals and Cemented Carbides, no. 2, 2017, pp. 55-59. |
| APA | [1] GUO Jin-lei, SHEN Shao-bo, ZHAO Ying-shi, JI Yi-long, & ZHANG Zhi-tao. (2017). Experimental Study on Preparation of ZrO_2 Hollow Ball by Hydrothermal Synthesis. Rare Metals and Cemented Carbides(2), 55-59. |
| IEEE | [1] GUO Jin-lei, SHEN Shao-bo, ZHAO Ying-shi, JI Yi-long, and ZHANG Zhi-tao, "Experimental Study on Preparation of ZrO_2 Hollow Ball by Hydrothermal Synthesis," Rare Metals and Cemented Carbides, no. 2, pp. 55-59, 2017. keywords: {ZrO2 hollow ball;ZrO2＋ adsorption;carbon ball template;adsorption condition;heating rate ofcalcination} |