Journal
ACS NANO
Volume 3, Issue 12, Pages 3945-3954Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn901006w
Keywords
graphene; metal oxide; nanoparticle; nitromethane; combustion; propellant
Categories
Funding
- ARRA/AFOSR [FA9550-09-1-0523]
- NASA University Research, Engineering and Technology Institute on Bioinspired Materials (BIMat) [NCC-1-02037]
- U.S. Army Research Office [W911NF-04-1-0178]
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We have compared the combustion of the monopropellant nitromethane with that of nitromethane containing colloidal particles of functionalized graphene sheets or metal hydroxides. The linear steady-state burning rates of the monopropellant and colloidal suspensions were determined at room temperature, under a range of pressures (3.35-14.4 MPa) using argon as a pressurizing fluid. The ignition temperatures were lowered and burning rates increased for the colloidal suspensions compared to those of the liquid monopropellant alone, with the graphene sheet suspension having significantly greater burning rates (i.e., greater than 175%). The relative change in burning rate from neat nitromethane increased with increasing concentrations of fuel additives and decreased with increasing pressure until at high pressures no enhancement was found.
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