Knowledge Management System Of Institute of process engineering,CAS
| Effects of V, Cs, and Cu on the thermal behavior of Keggin phosphomolybdates | |
| Yu, Jiayuan1,2; Wang, Lei1; Zhang, Guoliang1; Yan, Ruiyi1; Li, Chunshan1 | |
| 2022-01-21 | |
| Source Publication | JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
 |
| ISSN | 1388-6150 |
| Pages | 10 |
| Abstract | 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). |
| Keyword | Phosphomolybdates DTA-TG analysis Thermal decomposition Activation energy |
| DOI | 10.1007/s10973-021-11158-7 |
| Language | 英语 |
| WOS Keyword | HETEROPOLY COMPOUNDS ; SELECTIVE OXIDATION ; ACID ; DECOMPOSITION ; STABILITY ; CATALYSTS ; SPECTROSCOPY ; METHACROLEIN |
| Funding Project | 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 Research Area | Thermodynamics ; Chemistry |
| WOS Subject | Thermodynamics ; Chemistry, Analytical ; Chemistry, Physical |
| Funding Organization | 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 |
| WOS ID | WOS:000744945700001 |
| Publisher | SPRINGER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/51771 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Wang, Lei |
| Affiliation | 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 |
| Recommended Citation 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. |
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