Formation of Cr(VI) compounds during the thermal decomposition of amorphous chromium hydroxide
文献类型：期刊论文
| 作者 | Wei, Guangye1; Qu, Jingkui2; Qi, Tao2; Zheng, Yudong1; Guo, Qiang2 |
| 刊名 | JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
 |
| 出版日期 | 2014-08-01 |
| 卷号 | 117期号:2页码:741-745 |
| 关键词 | Chromium hydroxide Thermal decomposition TG FTIR |
| ISSN号 | 1388-6150 |
| 其他题名 | J. Therm. Anal. Calorim. |
| 中文摘要 | Chromium hydroxide (CH) was prepared by the reduction of purified sodium chromate using starch. CH was then used to prepare chromium oxide (Cr2O3). Results of thermogravimetric, X-ray diffraction, Fourier transform infrared spectroscopy, and chemical analyses suggested that a small amount of the initial Cr(VI) content speeds up the oxidation and reduction reactions, thereby promoting the purity and crystallization of Cr2O3. Cr(VI) in CH induced the evolution of CH and the formation of Cr(VI) containing compounds including CrO3, NaCr(CrO4)(2), Cr3O8, and Cr5O12 at low sintering temperature. Furthermore, homogeneous Cr2O3 nanoparticles with 99 % purity and particle size of 50 nm were obtained. |
| 英文摘要 | Chromium hydroxide (CH) was prepared by the reduction of purified sodium chromate using starch. CH was then used to prepare chromium oxide (Cr2O3). Results of thermogravimetric, X-ray diffraction, Fourier transform infrared spectroscopy, and chemical analyses suggested that a small amount of the initial Cr(VI) content speeds up the oxidation and reduction reactions, thereby promoting the purity and crystallization of Cr2O3. Cr(VI) in CH induced the evolution of CH and the formation of Cr(VI) containing compounds including CrO3, NaCr(CrO4)(2), Cr3O8, and Cr5O12 at low sintering temperature. Furthermore, homogeneous Cr2O3 nanoparticles with 99 % purity and particle size of 50 nm were obtained. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Analytical ; Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | MAGNETIC-PROPERTIES ; CR2O3 ; NANOPARTICLES ; OXIDE |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000339341300026 |
| 公开日期 | 2014-09-30 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11552]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Guangye,Qu, Jingkui,Qi, Tao,et al. Formation of Cr(VI) compounds during the thermal decomposition of amorphous chromium hydroxide[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2014,117(2):741-745. |
| APA | Wei, Guangye,Qu, Jingkui,Qi, Tao,Zheng, Yudong,&Guo, Qiang.(2014).Formation of Cr(VI) compounds during the thermal decomposition of amorphous chromium hydroxide.JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,117(2),741-745. |
| MLA | Wei, Guangye,et al."Formation of Cr(VI) compounds during the thermal decomposition of amorphous chromium hydroxide".JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 117.2(2014):741-745. |
入库方式： OAI收割
来源：过程工程研究所
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