The reaction route and active site of catalytic decomposition of hydrazine over molybdenum nitride catalyst

被引：114
|
作者：
Chen, XW [1 ]
Zhang, T [1 ]
Zheng, MY [1 ]
Wu, ZL [1 ]
Wu, WC [1 ]
Li, C [1 ]
机构：
[1] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
来源：
JOURNAL OF CATALYSIS | 2004年 / 224卷 / 02期
基金：
中国国家自然科学基金;
关键词：
molybdenum nitride; hydrazine decomposition; Fr-IR spectroscopy; hydrazine adsorption;
D O I：
10.1016/j.jcat.2004.02.035
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The catalytic properties of the passivated, reduced passivated, and fresh bulk molybdenum nitride for hydrazine decomposition were evaluated in a microreactor. The reaction route of hydrazine decomposition over molybdenum nitride catalysts seems to be the same as that of Ir/gamma-Al2O3 catalysts. Below 673 K, the hydrazine decomposes into N-2 and NH3. Above 673 K, the hydrazine decomposes into N-2 and NH3 first, and then the produced NH3 further dissociates into N-2 and H-2. From the in situ FT-IR spectroscopy, hydrazine is adsorbed and decomposes mainly on the Mo site of the Mo2N/gamma-Al2O3 catalyst. (C) 2004 Elsevier Inc. All rights reserved.
引用
收藏
页码：473 / 478
页数：6
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