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Metal-organic frameworks induce hypergolic ignition of bulk metals

30 August 2021, Version 1
Working Paper
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

We demonstrate the unprecedented ability to induce hypergolic behavior, i.e. rapid and spontaneous ignition upon contact with an oxidizer, in non-hypergolic metal fuels by blending them with hypergolic metal-organic frameworks (HMOFs). Using magnesium, aluminum or zinc metal as the fuel, we demonstrate materials with ignition delays (IDs) below 50 ms, and calculated specific impulse (Isp) in the 220-250 s range. These parameters are comparable to those of toxic and carcinogenic hydrazine-based hypergols conventionally used in aerospace technologies, suggesting a route to develop cleaner, safer propulsion systems.

Keywords

hypergolic
metal-organic frameworks
fuel
metal
ignition
propulsion
green chemistry

Supplementary materials

Title
Description
Actions
Title
Metal-organic frameworks induce hypergolic ignition of bulk metals
Description
Details of experimental procedures and instrumental tech-niques, selected thermal analysis, surface area analysis, SEM, drop testing, PXRD analysis, XPS and calculated Isp data.
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Version History

Aug 30, 2021 Version 1

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The content is available under CC BY NC ND 4.0 [opens in a new tab]

DOI

10.26434/chemrxiv-2021-f4dh4
D O I: 10.26434/chemrxiv-2021-f4dh4 [opens in a new tab]

Funding

Natural Sciences and Engineering Resarch Council of Canada
RGPIN-03622-2014
Natural Sciences and Engineering Research Council of Canada
RGPIN-2017-06467
Natural Sciences and Engineering Research Council of Canada
SMFSU 507347-17
Natural Sciences and Engineering Research Council of Canada
CGS-M and ES-D Scholarship
Natural Sciences and Engineering Research Council of Canada
Canada Research Chair Program
Canadian Space Agency
18FAPOLB17
Air Force Office of Scientific Research
FA9550-14-1-0306

Author’s competing interest statement

T.F., R.D.R., H.M.T., J.M.M. are inventors on patent application (no. 62/730,590, from 13 September 2018) related to hypergolic MOFs, which is assigned to ACSYNAM Inc. (Montreal, H1P 1W1, Canada) with T.F., C.M. and R.D.R. as co-owners.

Ethics

The author(s) have declared ethics committee/IRB approval is not relevant to this content

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