Functionalization and Passivation of Boron Nanoparticles with a Hypergolic Ionic Liquid

Perez, Jesus Paulo L.; McMahon, Brandon W.; Anderson, Scott L.

doi:10.2514/1.b34724

Cited by 29 publications

(28 citation statements)

References 31 publications

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“…The Δ E c values of vinyl- and acetylene-substituted ZIFs were similar to that of ZIF-8, which confirms that acetylene and vinyl substituents act as triggers for hypergolic behavior, without notably increasing the energetic content of the ZIFs. The energetic content is significant, as the calculated E g and E V for all herein explored ZIFs, including ZIF-8, are actually comparable to popular explosives [e.g., trinitrotoluene (14.9 kJ g −1 )] ( 38 ) and hydrazine fuels (19.5 kJ g −1 and 19.3 kJ cm −3 ) ( 39 ).…”

Section: Resultsmentioning

confidence: 66%

Hypergolic zeolitic imidazolate frameworks (ZIFs) as next-generation solid fuels: Unlocking the latent energetic behavior of ZIFs

et al. 2019

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Hypergolic materials, capable of spontaneous ignition upon contact with an external oxidizer, are of critical importance as fuels and propellants in aerospace applications (e.g., rockets and spacecraft). Currently used hypergolic fuels are highly energetic, toxic, and carcinogenic hydrazine derivatives, inspiring the search for cleaner and safer hypergols. Here, we demonstrate the first strategy to design hypergolic behavior within a metal-organic framework (MOF) platform, by using simple “trigger” functionalities to unlock the latent and generally not recognized energetic properties of zeolitic imidazolate frameworks, a popular class of MOFs. The herein presented six hypergolic MOFs, based on zinc, cobalt, and cadmium, illustrate a uniquely modular platform to develop hypergols free of highly energetic or carcinogenic components, in which varying the metal and linker components enables the modulation of ignition and combustion properties, resulting in excellent hypergolic response evident by ultrashort ignition delays as low as 2 ms.

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Section: Resultsmentioning

confidence: 66%

Hypergolic zeolitic imidazolate frameworks (ZIFs) as next-generation solid fuels: Unlocking the latent energetic behavior of ZIFs

et al. 2019

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“…Researchers have thus been involved in finding novel ways and better means to enhance boron-based combustion. 20, 87, 100, 101 CNT-BNNT hybrid structures were recently shown to enhance electronic and transport properties. 102 Increased absorption of NO and NO 2 was reported due to C doping in h-BN nanosheets in room temperature sensors for NO and NO 2 .…”

Section: Types Of Boron Nanocompositesmentioning

confidence: 99%

Nanoparticles containing boron and its compounds—synthesis and applications: A review

Tatiya

Pandey

Bhattacharya

2020

Journal of Micromanufacturing

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Nanomaterials have already contributed to many innovative products in the consumer markets. Constant efforts are directed at attaining unique morphologies and reduction in size. Exponential growth in research is thus involved in the synthesis of the novel nanomaterials. Boron and its compounds with distinct functional and structural properties find extensive usage in a variety of fields ranging from nuclear technology to electronics, ceramics, etc. Also, due to their non-toxicity, they are considered an attractive intermediate in the healthcare and cosmetic industry. The majority of reviews on boron and its compounds are focused on morphologies and the structure of the boron compound obtained. Here, we offer a comprehensive review of the unique properties of the major boron compounds: boron carbide (B4C), boron nitride (BN), and heterostructures with metals and organic compounds. In each section, we also describe the subsequent synthesis routes and the challenges associated with them. We have also summarized the various morphologies and shapes reported to be associated with boron and its compounds. In recent years, however, primary research on boron nanoparticle (BNP) has focused on non-toxic/greener and energy-efficient synthesis routes. The usage and production of pure BNPs in the industry are very scarce and are often associated with nanoclusters of boron and other elements. The intricate structural design and low purity of the nanoproducts formed make BNP synthesis challenging. Thus, in the last section, we summarize the challenges and outlook of the current research with future prospects in the area of BNP research.

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“…Stirring the nanoparticles in solutions of a capping agent is sufficient to produce surface modifications, unlike current methods for functionalizing boron-based nanostructures which involve coupling, 44–45 chemical reactions, 46 or milling. 47–48 An additional noteworthy aspect of the current work is the observed non-toxicity of the 10 B 2 O 3 nanoparticles, making them prospective candidates for boron neutron capture therapy (BNCT). Considering that 10 B-enriched boron oxide is already being produced on the industrial scale for nuclear applications, these results provide a scalable and efficient entry towards an expanded toolbox of boron-rich hybrid nanomaterials.…”

mentioning

confidence: 99%

Sonochemical Synthesis of Small Boron Oxide Nanoparticles

et al. 2018

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The synthesis of small boron oxide nanoparticles (NPs) is reported. A sonochemical approach in the presence of a capping agent was employed to produce approximately 4-5-nm-sized BO NPs, including the B isotopically enriched form. The morphology and composition of the NPs were established using transmission electron microscopy and diffraction, respectively. X-ray photoelectron and Fourier transform infrared spectroscopies provided information about surface functionalization of the BO NPs, which can be further modified through a facile, one-step ligand-exchange process. The toxicity of the synthesized NPs was investigated in Chinese hamster ovarian cells, indicating that these systems were nontoxic up to 1.7 mM concentrations.

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Functionalization and Passivation of Boron Nanoparticles with a Hypergolic Ionic Liquid

Cited by 29 publications

References 31 publications

Hypergolic zeolitic imidazolate frameworks (ZIFs) as next-generation solid fuels: Unlocking the latent energetic behavior of ZIFs

Hypergolic zeolitic imidazolate frameworks (ZIFs) as next-generation solid fuels: Unlocking the latent energetic behavior of ZIFs

Nanoparticles containing boron and its compounds—synthesis and applications: A review

Sonochemical Synthesis of Small Boron Oxide Nanoparticles

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