| ESR研究FeAPO-5和FeSAPO-5分子筛 |
| STUDY OF THE ESR ON FeAPO-5 AND FeSAPO-5 MOLECULAR SIEVES |
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| 摘要: AlPO4-n和SAPO-n系列分子筛是80年代由美国联合碳化物公司(U.C.C.)首先合成的一类磷铝分子筛。杂原子Fe的引入可调变其性能,使其出现独特的吸附及催化性能。 |
| 关键词: 磷酸铝分子筛 电子自旋共振 |
| 基金项目: |
| Abstract: FeAPO-5 and FeSAPO-5were sythesized by hydrothermal method. The above samples have been studied by means of ESR and confirmed that Fe3+ is inserted the framework. The relationship between the gobs value and the surroundings of Fe+ in the FeAPO-5and FeSAPO-5are discussed. It is also proposed that there are a number of possible forms for Fe3+ in the FeAPO-5and FeSAPO-5,(1) a strong sharp ESR signal at g=4.20,as tetrahedralcoordination Fe3+ in the framework of FeAPO-5,and FeSAPO-5;(2)a very weak broad ESR signal at g≈2.00,as amorphous Fe2O3;(3) a very weak ESR signal at g≈8.00,as distortedoctahadral Fe3+ species. |
| Keywords: aluminophosphate molecular sieve ESR |
| 投稿时间：1988-03-23 |
| 摘要点击次数: 1233 |
| 全文下载次数: 1590 |
| 鲍书林,章方良,须沁华.ESR研究FeAPO-5和FeSAPO-5分子筛[J].无机化学学报,1989,5(3):117-119. |
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