Reactivity analysis of ammonium dinitramide binary mixtures based on ab initio calculations and thermal analysis

Shiota, Kento; Izato, Yu‐ichiro; Habu, Hiroto; Miyake, Akira

doi:10.1007/s10973-019-08557-2

Cited by 4 publications

(2 citation statements)

References 32 publications

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“…NO 2 is also known to be the initial product generated during pyrolysis, which begins with the cleavage of the N‐NO 2 bond in ADN . It is thus desirable for ADN‐based propellants to have formulations that are highly reactive with NO 2 in the condensed phase, and fuels having a low hydrogen abstraction energy have been shown to increase the pyrolytic reactivity of ADN . This same effect would likely appear during the electrolysis of ADN‐based EILPs based on these computational results, meaning that electrolysis would generate NO 2 from ADN and the NO 2 would then react with the fuel.…”

Section: Resultsmentioning

confidence: 69%

The Electrolysis of Ammonium Dinitramide in Dimethyl Sulfoxide

Izato

Matsushita

Shiota

et al. 2020

Propellants Explo Pyrotec

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This work investigated the electrolysis of ammonium dinitramide (ADN: NH 4 N(NO 2) 2) in dimethyl sulfoxide (DMSO). Various fundamental electrolysis properties of ADN were assessed based on an electrochemical study and the associated mechanisms were examined based on a quantum chemical approach. ADN exhibited three redox peaks at À 0.69, À 1.16 and À 1.52 V, and two oxidation peaks at 0.34 and 0.50 V (vs Ag/AgCl) at a scan rate of 50 mV s À 1 during cyclic voltammetry trials with a platinum electrode. Ultraviolet-visible spectra of ADN in DMSO were also acquired to determine temporal changes under galvanostatic reduction conditions. These spectra showed that a continuous current in conjunction with an applied voltage of À 1.5 V decomposed the ADN, but were unable to elucidate electrolysis products. Quantum chemistry calculations identified possible pathways for the electrolysis of ADN in DMSO, and indicated that reduced ADN rapidly decomposes to form NH 3 , N 2 O, NO 2 and OH À. The associated Gibbs energy barrier was determined to be almost 0 kJ mol À 1 when calculated at the CBS-QB3//ωB97X-D/6-311 + + G(d,p)/SCRF = (SMD, solvent = dmso) level of theory. These results suggest that ADN can undergo electrolysis in a solvent for which the potential window is sufficiently wide given the application of the appropriate voltage.

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Section: Resultsmentioning

confidence: 69%

The Electrolysis of Ammonium Dinitramide in Dimethyl Sulfoxide

Izato

Matsushita

Shiota

et al. 2020

Propellants Explo Pyrotec

Self Cite

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“…Be that as it may, the potential of nitrogen derivatives regarding their use as fuels can be understood based on the enormous increase in publications on this subject in recent times. In fact, in addition to the aforementioned nitrogen-based fuels, many others such as aqueous ammonium carbonate [243,244], aqueous ammonium acetate [245], aqueous ammonium carbamate [224], aqueous urea [246][247][248], ammonium perchlorate [249][250][251][252][253], ammonia borane [254][255][256][257][258], dimethylamine borane [259,260] and ammonium dinitramide (ADN) [261][262][263][264] are objects of study.…”

Section: Other Synthetic Nitrogen-based Fuelsmentioning

confidence: 99%

Current Research on Green Ammonia (NH3) as a Potential Vector Energy for Power Storage and Engine Fuels: A Review

et al. 2023

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Considering the renewable electricity production using sustainable technologies, such as solar photovoltaics or wind turbines, it is essential to have systems that allow for storing the energy produced during the periods of lower consumption as well as the energy transportation through the distribution network. Despite hydrogen being considered a good candidate, it presents several problems related to its extremely low density, which requires the use of very high pressures to store it. In addition, its energy density in volumetric terms is still clearly lower than that of most liquid fuels. These facts have led to the consideration of ammonia as an alternative compound for energy storage or as a carrier. In this sense, this review deals with the evaluation of using green ammonia for different energetic purposes, such as an energy carrier vector, an electricity generator and E-fuel. In addition, this study has addressed the latest studies that propose the use of nitrogen-derived compounds, i.e., urea, hydrazine, ammonium nitrate, etc., as alternative fuels. In this study, the possibility of using other nitrogen-derived compounds, i.e., an update of the ecosystem surrounding green ammonia, has been assessed, from production to consumption, including storage, transportation, etc. Additionally, the future challenges in achieving a technical and economically viable energy transition have been determined.

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