distributionofmoinmozsm5catalystpreparedbyimpregnationmethod
文献类型:期刊论文
作者 | Li B(李斌)1; Chen HY(陈会英)2; Li SJ(李士杰)1; Li N(李能)1; Bao XH(包信和)2; Lin BX(林炳雄)1 |
刊名 | chinesejournalofcatalysis
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出版日期 | 2005-01-01 |
卷号 | 26期号:9页码:769 |
ISSN号 | 0253-9837 |
英文摘要 | The Mo/ZSM-5 catalyst sample with 6 % Mo loading prepared by impregnation method has been proved to be the best catalyst for methane non-oxidative aromatization. In this paper, the distribution of Mo species in 6 % Mo/ZSM-5 was focused on. The crystalline structure of Mo/ZSM-5 was determined by XRD and refined by Rietveld method. The results revealed that the Mo species had three states in the Mo/ZSM-5 catalyst. One kind of Mo species, Mo5O12(6+), situated at the channel of ZSM-5 zeolite. There was about 0.4 of Mo5O12(6+) unit per cell of ZSM-5 zeolite on the average. These units neutralized a number of B acid sites. As a result, the B acid sites of the Mo/ZSM-5 catalyst decreased obviously compared with the parent HZSM-5 zeolite By contraries, the amount of L acid sites increased slightly in the Mo/ZSM-5 catalyst. The Mo in Mo5O12(6+) units was about 3.03 % of Mo/ZSM-5 crystals in mass fraction. The other two kinds of Mo species, alpha-MoO3 and amorphous Mo oxides, distributed on the external surface of the Mo/ZSM-5 crystal and modified it. |
语种 | 英语 |
源URL | [http://cas-ir.dicp.ac.cn/handle/321008/174654] ![]() |
专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
作者单位 | 1.北京大学 2.中国科学院大连化学物理研究所 |
推荐引用方式 GB/T 7714 | Li B,Chen HY,Li SJ,et al. distributionofmoinmozsm5catalystpreparedbyimpregnationmethod[J]. chinesejournalofcatalysis,2005,26(9):769. |
APA | 李斌,陈会英,李士杰,李能,包信和,&林炳雄.(2005).distributionofmoinmozsm5catalystpreparedbyimpregnationmethod.chinesejournalofcatalysis,26(9),769. |
MLA | 李斌,et al."distributionofmoinmozsm5catalystpreparedbyimpregnationmethod".chinesejournalofcatalysis 26.9(2005):769. |
入库方式: OAI收割
来源:大连化学物理研究所
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