Catalytic decomposition of hydrazine over supported molybdenum nitride catalysts in a monopropellant thruster

被引：54

作者：

Chen, XW ^{[1
]}

Zhang, T ^{[1
]}

Xia, LG ^{[1
]}

Li, T ^{[1
]}

Zheng, MY ^{[1
]}

Wu, ZL ^{[1
]}

Wang, XD ^{[1
]}

Wei, ZB ^{[1
]}

Xin, Q ^{[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：

CATALYSIS LETTERS | 2002年 / 79卷 / 1-4期

关键词：

hydrazine decomposition; supported molybdenum nitride; passivation; monopropellant thruster;

D O I：

10.1023/A:1015343922044

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 decomposition of hydrazine over a series of MoNx/gamma-Al2O3 catalysts with different Mo loadings was investigated in a monopropellant thruster (10 N). When the Mo loading is equal to or higher than the monolayer coverage of MoO3 on gamma-Al2O3, the catalytic performance of the supported molybdenum nitride catalyst is close to that of the conventionally used Ir/gamma-Al2O3 catalyst. The MoNx/gamma-Al2O3 catalyst with a loading of about 23wt% Mo (1.5 monolayers) shows the highest activity for hydrazine decomposition. There is an activation process for the MoNx/gamma-Al2O3 catalysts at the early stage of hydrazine decomposition, which is probably due to the reduction of the oxide layer formed in the passivation procedure.

引用

页码：21 / 25

页数：5

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