Jump to main content
Jump to site search


Effects of closo-icosahedral periodoborane salts on hypergolic reactions of 70% H2O2 with energetic ionic liquids

Author affiliations

Abstract

A number of energetic ionic liquids (EILs) have been reported as promising hydrazine-replacement fuels for hypergolic rocket propulsion. However, most of these EILs were ignited using corrosive and hazardous concentrated fuming nitric acid. Very significant efforts were recently made to utilize “rocket grade” highly concentrated H2O2 (>90%) as a “green” alternative to fuming nitric acid and N2O4 oxidizers. Although “rocket grade” H2O2 is more challenging to use and less safe for storage than commercially available H2O2 (70%), the latter is not considered as a viable oxidizer for hypergolic propulsion. In this work, we focused on the development of novel iodine-rich promoters, capable of initiating hypergolic ignition reactions between a typical EIL fuel – 3-ethyl-1-methyl-1H-imidazol-3-ium cyanotrihydroborate – and H2O2. Among the prepared and evaluated promoters, the top performing [FcCH2NEtMe2+]2[B12I122−] compound 5 showed ignition delay times of 45 ms in the reaction of the tested EIL with H2O2 (70%) and 17 ms with H2O2 (95%). We believe that these findings provide a platform for the development and utilization of commercially available H2O2 as a potential “green” oxidizer for rocket propulsion.

Graphical abstract: Effects of closo-icosahedral periodoborane salts on hypergolic reactions of 70% H2O2 with energetic ionic liquids

Back to tab navigation

Supplementary files

Publication details

The article was received on 24 Apr 2018, accepted on 03 Sep 2018 and first published on 05 Sep 2018


Article type: Paper
DOI: 10.1039/C8TA03780A
Citation: J. Mater. Chem. A, 2018, Advance Article
  •   Request permissions

    Effects of closo-icosahedral periodoborane salts on hypergolic reactions of 70% H2O2 with energetic ionic liquids

    A. K. Chinnam, N. Petrutik, K. Wang, A. Shlomovich, O. Shamis, D. S. Tov, M. Sućeska, Q. Yan, R. Dobrovetsky and M. Gozin, J. Mater. Chem. A, 2018, Advance Article , DOI: 10.1039/C8TA03780A

Search articles by author

Spotlight

Advertisements