A novel catalyst for hydrazine decomposition: molybdenum carbide supported on γ-Al2O3

Abstract

An alumina-supported Mo2C catalyst is found to be as active as a conventionally used Ir/gamma-Al2O3 catalyst for catalytic decomposition of hydrazine tested in a monopropellant thruster.

Synthesis of renewable diesel with the 2-methylfuran, butanal and acetone derived from lignocellulose

“…As a family of potential substitutes to noble metal catalysts, the carbides of group 4-6 metals have been reported to have similar catalytic performances as platinum-group metals in a variety of reactions (Alexander and Hargreaves, 2010). In the earlier work of our group (Chen et al, 2002;Wang et al, 2008), tungsten and molybdenum carbides were used to replace noble metal catalysts for the catalytic decomposition of hydrazine and exhibited excellent performance. Recently, nickel promoted tungsten carbide (Ni-W x C/C) was found to have excellent catalytic activity for the hydrogenolysis of cellulose to ethylene glycol (Ji et al, 2008).…”

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

“…However, most studies about the catalytic decomposition of hydrazine over passivated transition metal nitrides and carbides were investigated in thrusters on which there is a thin oxynitride or oxycarbide layer on the surface of the catalyst [1,2,[4][5][6]. In order to gain sight into the intrinsic catalytic property of molybdenum nitride catalyst, the catalytic activities of passivated, reduced passivated, and fresh bulk Mo 2 N catalysts for hydrazine decomposition versus reaction time at 303 K were compared in the microreactor (Fig.…”

“…The activity of niobium nitride was lower than that of tungsten nitride and iridium catalysts [2]. Moreover, alumina-supported molybdenum nitride and carbide catalysts are active as Ir catalysts for hydrazine decomposition in the thruster [5,6].…”

“…Recently, the catalytic performances of transition metal nitride and carbide catalysts for hydrazine decomposition have been studied because of their low cost and platinumlike behavior in catalysis [1][2][3][4][5][6]. Transition metal nitride and carbide catalysts have the potential to substitute for the traditional noble metal catalyst wt% Ir/Al 2 O 3 ), which has been widely applied to hydrazine decomposition in space technology since the 1970s [7][8][9][10].…”

06/01142 A novel approach for CO-free H2 production via catalytic decomposition of hydrazine

“…The products are also CO-free since no carbon atoms are present in hydrazine. Furthermore, hydrazine is chemically a very active compound and can be decomposed over catalysts at room temperature [11][12][13][14]. The decomposition is an exothermic reaction and does not need any energy to be provided from outside.…”