Effects of V, Cs, and Cu on the thermal behavior of Keggin phosphomolybdates
文献类型：期刊论文
| 作者 | Yu, Jiayuan1,2; Wang, Lei1; Zhang, Guoliang1; Yan, Ruiyi1; Li, Chunshan1 |
| 刊名 | JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
 |
| 出版日期 | 2022-01-21 |
| 页码 | 10 |
| 关键词 | Phosphomolybdates DTA-TG analysis Thermal decomposition Activation energy |
| ISSN号 | 1388-6150 |
| DOI | 10.1007/s10973-021-11158-7 |
| 英文摘要 | Heteropoly acids (HPAs) are a kind of important compounds possessing acidic and redox properties, but their applications are restricted by the poor stability. In this work, the effects of vanadium, cesium, and copper modification on the thermal stability of Keggin phosphomolybdates were investigated. The structure and phase transformation of HPAs and the salts were detected by XRD and DTA-TG in the thermal decomposition process. Results showed that the HPAs would decompose into oxides as a result of loss of water. The decomposition processes of the heteropoly salts showed different characteristics. The copper-doped salts would fully decompose into oxides of the corresponding elements, while the salts containing cesium would reserve the Keggin structure as neutral salts Cs(3+x)HPAV(x) and other compositions would convert into the corresponding oxides. The activation energies of the Keggin heteropoly compounds decomposition reaction were calculated with the non-isothermal kinetic study. The results indicated that the decomposition temperature and the decomposition activation energy of CsHPAV(1) increased for about 20 K and 15 kJ mol(-1), respectively, in comparison with those of HPAV(1). |
| WOS关键词 | HETEROPOLY COMPOUNDS ; SELECTIVE OXIDATION ; ACID ; DECOMPOSITION ; STABILITY ; CATALYSTS ; SPECTROSCOPY ; METHACROLEIN |
| 资助项目 | National Natural Science Foundation of China[21676277] ; National Key Technology Research and Development Program of China[2017YFA0206803] ; International Partnership Program of Chinese Academy of Sciences[122111KYSB20190060] ; Key Research and Development Program of Hebei Province[20374002D] |
| WOS研究方向 | Thermodynamics ; Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000744945700001 |
| 出版者 | SPRINGER |
| 资助机构 | National Natural Science Foundation of China ; National Key Technology Research and Development Program of China ; International Partnership Program of Chinese Academy of Sciences ; Key Research and Development Program of Hebei Province |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/51770]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Wang, Lei |
| 作者单位 | 1.Chinese Acad Sci, Beijing Key Lab Ionic Liquids Clean Proc, Innovat Acad Green Mfg, Inst Proc Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sino Danish Coll, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Jiayuan,Wang, Lei,Zhang, Guoliang,et al. Effects of V, Cs, and Cu on the thermal behavior of Keggin phosphomolybdates[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2022:10. |
| APA | Yu, Jiayuan,Wang, Lei,Zhang, Guoliang,Yan, Ruiyi,&Li, Chunshan.(2022).Effects of V, Cs, and Cu on the thermal behavior of Keggin phosphomolybdates.JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,10. |
| MLA | Yu, Jiayuan,et al."Effects of V, Cs, and Cu on the thermal behavior of Keggin phosphomolybdates".JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY (2022):10. |
入库方式： OAI收割
来源：过程工程研究所
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