IHEP OpenIR  > 多学科研究中心
Structure characterization of gamma-Mo2N and Mo nitrides supported on zeolites
其他题名r-Mo2N和分子筛负载的钼氮化物的结构表征
Liu, ZL; Meng, M; Fu, YL; Jiang, M; Hu, TD; Xie, YN; Liu, T; Hu TD(胡天斗); Xie YN(谢亚宁); Liu T(刘涛)
2001
发表期刊ACTA PHYSICO-CHIMICA SINICA
卷号17期号:7页码:631-635
通讯作者Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China
摘要Zeolites supported Mo nitrides were prepared via MoO3 + NH3 reaction in temperature programmed mannar. The XRD data show that the frame structure of NaY and Na-ZSM-5 zeolites can still be maintained after nitridation at 973K. By analysis of the extended X-ray absorption fine structure (EXAFS) of the Mo K-absorption edge, the structural informations of both oxidic and nitrided Mo catalysts were obtained. The supported MoO3 samples show three peaks in the radial structure function (RSF). The first two peaks correspond to the nearest Mo - O coordination shell, but the ratio of the first peak to the second one is much larger than that of the MoO3. This suggests that the MoO3 supported on zeolites has more compact structure than the unsupported one. There are three peaks in the RSF Of Mo2N, representing one Mo - N and two Mo - Mo shells, which is in good agreement with the face-centered cubic model. Calculation from X-ray diffraction data and EXAFS spectra reveals that the N atoms in Mo2N lengthen the distance between Mo atoms and weaken the Mo - Mo bond. Supported Mo2N samples give out nearly the same RSFs as the Mo2N, only the peak corresponding to Mo - N shell is weak, suggesting that the supported Mo2N has more structural disorder than the unsupported one. Mo2N supported on Na-ZSM-5 gives out shorter coordination distance than supported on NaY, suggesting stronger interaction between Mo2N and Na-ZSM-5.
文章类型Article
关键词zeolite supports molybdenum nitride catalysts EXAFS structure
学科领域Chemistry
研究领域[WOS]Chemistry
DOI10.3866/PKU.WHXB20010712
URL查看原文
语种英语
WOS类目Chemistry, Physical
WOS记录号WOS:000170070000012
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/238152
专题多学科研究中心
中国科学院高能物理研究所_中国散裂中子源
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
Liu, ZL,Meng, M,Fu, YL,et al. Structure characterization of gamma-Mo2N and Mo nitrides supported on zeolites[J]. ACTA PHYSICO-CHIMICA SINICA,2001,17(7):631-635.
APA Liu, ZL.,Meng, M.,Fu, YL.,Jiang, M.,Hu, TD.,...&刘涛.(2001).Structure characterization of gamma-Mo2N and Mo nitrides supported on zeolites.ACTA PHYSICO-CHIMICA SINICA,17(7),631-635.
MLA Liu, ZL,et al."Structure characterization of gamma-Mo2N and Mo nitrides supported on zeolites".ACTA PHYSICO-CHIMICA SINICA 17.7(2001):631-635.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
4955.pdf(813KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Liu, ZL]的文章
[Meng, M]的文章
[Fu, YL]的文章
百度学术
百度学术中相似的文章
[Liu, ZL]的文章
[Meng, M]的文章
[Fu, YL]的文章
必应学术
必应学术中相似的文章
[Liu, ZL]的文章
[Meng, M]的文章
[Fu, YL]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 4955.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。