Application of FTIR and XPS technique to the analysis of the mixture containing chromium in a low valence state
文献类型：期刊论文
| 作者 | Bai Yu-lan; Xu Hong-bin; Zhang Yi; Li Zuo-hu |
| 刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS
 |
| 出版日期 | 2007-04-01 |
| 卷号 | 27期号:4页码:675-678 |
| 关键词 | FTIR XPS low valence state of chromium chromium compounds composition analysis |
| ISSN号 | 1000-0593 |
| 其他题名 | Spectrosc. Spectr. Anal. |
| 中文摘要 | Chromium has various valence states and in the process of preparing chromium oxides with low valence state of chromium, chromium compounds with different valence state of chromium can usually be produced as intermediates. Due to the difference in property of these intermediates, they always have remarkable influences on the morphological characteristics of the final product. The composition of the intermediate was very complicated in the process of synthesizing chromium oxide with low valence state of chromium by reducing potassium chromate with hydrogen. To explore the reaction mechanism and further optimize the technical process, the composition of the intermediate obtained from the reduction of K2CrO4 with hydrogen was investigated through the combination of XPS, FTIR and XRD. The XPS results revealed that the intermediate of reducing potassium chromate with hydrogen is trivalent chromium compound; the results of FTIR and XRD indicated that the intermediate mainly consists of Cr(OH)(3) center dot nH(2)O, HCrO2 and a little amount of KOH or KCrO2. On the basis of the above analysis of the intermediate, the possible reactions that occurred in the reduction process were suggested. |
| 英文摘要 | Chromium has various valence states and in the process of preparing chromium oxides with low valence state of chromium, chromium compounds with different valence state of chromium can usually be produced as intermediates. Due to the difference in property of these intermediates, they always have remarkable influences on the morphological characteristics of the final product. The composition of the intermediate was very complicated in the process of synthesizing chromium oxide with low valence state of chromium by reducing potassium chromate with hydrogen. To explore the reaction mechanism and further optimize the technical process, the composition of the intermediate obtained from the reduction of K2CrO4 with hydrogen was investigated through the combination of XPS, FTIR and XRD. The XPS results revealed that the intermediate of reducing potassium chromate with hydrogen is trivalent chromium compound; the results of FTIR and XRD indicated that the intermediate mainly consists of Cr(OH)(3) center dot nH(2)O, HCrO2 and a little amount of KOH or KCrO2. On the basis of the above analysis of the intermediate, the possible reactions that occurred in the reduction process were suggested. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Spectroscopy |
| 研究领域[WOS] | Spectroscopy |
| 关键词[WOS] | OXIDES ; DECOMPOSITION ; CATALYSTS |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000246217100014 |
| 公开日期 | 2013-10-15 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/3283]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai Yu-lan,Xu Hong-bin,Zhang Yi,et al. Application of FTIR and XPS technique to the analysis of the mixture containing chromium in a low valence state[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2007,27(4):675-678. |
| APA | Bai Yu-lan,Xu Hong-bin,Zhang Yi,&Li Zuo-hu.(2007).Application of FTIR and XPS technique to the analysis of the mixture containing chromium in a low valence state.SPECTROSCOPY AND SPECTRAL ANALYSIS,27(4),675-678. |
| MLA | Bai Yu-lan,et al."Application of FTIR and XPS technique to the analysis of the mixture containing chromium in a low valence state".SPECTROSCOPY AND SPECTRAL ANALYSIS 27.4(2007):675-678. |
入库方式： OAI收割
来源：过程工程研究所
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