%0 Journal Article
%A Wu, Chuntian
%A Wang, Xiaodong
%A Zhou, Xiunan
%A Yang, Tianzhuo
%A Zhang, Tao
%D 2015
%I Begell House
%K cordierite honeycomb monolith, nontoxic monopropellant, catalytic decomposition, high bed-loading
%N 5
%P 421-436
%R 10.1615/IntJEnergeticMaterialsChemProp.2015011176
%T SUPPORTED MnOx /SrO−Al2O3 HIGH-CELL DENSITY HONEYCOMB CERAMIC MONOLITH CATALYST FOR HIGH-CONCENTRATION HYDROGEN PEROXIDE DECOMPOSITION
%U https://www.dl.begellhouse.com/journals/17bbb47e377ce023,488f8cbb66341308,3a940ce34374388f.html
%V 14
%X High-concentration hydrogen peroxide is a potential substitute for a toxic hydrazine monopropellant. There is a pressing need for improved H2O2 decomposition catalysts to both increase bed loading and improve the resistance to a high temperature. In this paper, we describe the effects of Sr addition on the catalytic properties of MnOx/SrO−Al2O3 catalysts for high-concentration hydrogen peroxide decomposition. A structure analysis by temperature-programmed reduction and X-ray diffraction revealed that highly dispersed SrO formed on Al2O3 enhanced the dispersion and reduction capability of Mn species and facilitated the formation of more active Mn4+ species due to restraining the interaction between Mn and Al2O3 and activation of oxygen. Mn4+ species provided the main active site. The addition of Sr increased the catalytic activity and work stability of the MnOx/SrO−Al2O3 monolith catalyst.
%8 2015-10-08