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International Journal of Energetic Materials and Chemical Propulsion

Publicou 6 edições por ano

ISSN Imprimir: 2150-766X

ISSN On-line: 2150-7678

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.7 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 0.7 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.1 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00016 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.18 SJR: 0.313 SNIP: 0.6 CiteScore™:: 1.6 H-Index: 16

Indexed in

HYPERGOLIC IONIC LIQUID FUELS AND OXIDIZERS

Volume 13, Edição 3, 2014, pp. 251-285
DOI: 10.1615/IntJEnergeticMaterialsChemProp.2014011111
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RESUMO

Hypergols (fuel and oxidizer that ignite on contact) are useful for space propulsion since reaction can be initiated or terminated by opening or closing appropriate valves. Hypergolic liquid propellants are strongly preferred over solid fuels or oxidizers since they show excellent hypergolic ignition and low ignition delay time, high specific impulse, and better thrust control. Hydrazine, and its methylsubstituted derivatives, are fuels of choice based on favorable combustion characteristics, and high specific impulse. However, these positive properties are diminished by many drawbacks including the volatility of these fuels which, because of their carcinogenic and toxic nature, require costly handling procedures to meet environmental requirements during manufacture, storage, shipping, and application. Based on these unattractive properties, chemists worldwide have been catalyzed to develop alternative environmentally friendly hypergolic ionic liquid propellants as fuels. Anions of these salts, which include dicyanamide, dicyanoborate, cyanoborate, azide, nitrate, aluminum borohydride, nitrocyanamide, etc., appear to play the major role in determining hypergolic properties. Although cations play a lesser role, they are most frequently nitrogen-containing alkyl and aromatic species, e.g., substituted alkyl ammonium, imidazolium, imidazolium-substituted with alkyl, vinyl, propargyl, etc. New stable, dense, storable oxidizers are needed in order to address dependably the demands for energetic systems that are on call 24/7 since the typical oxidizers are likely to be cryogens, unstable liquids, or corrosive substances. Stable room temperature oxidizers that possess positive chlorine or bromine atoms, e.g., azo bis (bromochloro FOX), exhibit appropriate properties when reacted with fuels. There is a strong need to design and synthesize compounds to be used as long-term storable oxidizers or as stable electron-rich fuels.

CITADO POR
  1. Chand Deepak, Zhang Jiaheng, Shreeve Jean'ne M, Borohydride Ionic Liquids as Hypergolic Fuels: A Quest for Improved Stability, Chemistry - A European Journal, 21, 38, 2015. Crossref

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