Bicyclic ammonium ionic liquids as dense hypergolic fuels
It is critical for hypergolic fuels to be dense so as to enhance the performance of propellants and improve the loading of rockets. Considering that dense elements and bicyclic rings contribute to high density, two series of ionic liquids were prepared with 1-aza-bicyclo[2.2.2]octane-/1,4-diazabicyc...
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| Veröffentlicht in: | RSC advances 2017-01, Vol.7 (35), p.21592-21599 |
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| creator | Yuan, Yutao Zhang, Yanqiang Liu, Long Jiao, Nianming Dong, Kun Zhang, Suojiang |
| description | It is critical for hypergolic fuels to be dense so as to enhance the performance of propellants and improve the loading of rockets. Considering that dense elements and bicyclic rings contribute to high density, two series of ionic liquids were prepared with 1-aza-bicyclo[2.2.2]octane-/1,4-diazabicyclo[2.2.2]octane-based cations and the dicyanamide anion. Their key properties were measured or calculated as decomposition temperature (208–322 °C), density (1.06–1.31 g cm
−3
), specific impulse (260.5 to 266.2 s) and ignition delay time (14–1053 ms). Compared with 1-aza-bicyclo[2.2.2]octane-based ionic liquids, the corresponding 1,4-diazabicyclo[2.2.2]octane-based ionic liquids exhibit a lower decomposition temperature, higher density and bigger specific impulse. As expected, 1-methyl-1-azonia-bicyclo[2.2.2]octane and 1-(prop-2-ynyl)-4-aza-1-azonia-bicyclo[2.2.2]octane dicyanamide possess higher densities (1.20 and 1.19 g cm
−3
) than the corresponding pyrrolidinium and imidazolium-based isomers (1.05 and 1.07 g cm
−3
), besides hypergolicity with white fuming nitric acid. |
| doi_str_mv | 10.1039/c7ra03090h |
| format | Article |
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−3
), specific impulse (260.5 to 266.2 s) and ignition delay time (14–1053 ms). Compared with 1-aza-bicyclo[2.2.2]octane-based ionic liquids, the corresponding 1,4-diazabicyclo[2.2.2]octane-based ionic liquids exhibit a lower decomposition temperature, higher density and bigger specific impulse. As expected, 1-methyl-1-azonia-bicyclo[2.2.2]octane and 1-(prop-2-ynyl)-4-aza-1-azonia-bicyclo[2.2.2]octane dicyanamide possess higher densities (1.20 and 1.19 g cm
−3
) than the corresponding pyrrolidinium and imidazolium-based isomers (1.05 and 1.07 g cm
−3
), besides hypergolicity with white fuming nitric acid.</description><identifier>ISSN: 2046-2069</identifier><identifier>EISSN: 2046-2069</identifier><identifier>DOI: 10.1039/c7ra03090h</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Decomposition ; Delay ; Delay time ; Density ; Fuels ; Ionic liquids ; Isomers ; Nitric acid ; Rockets ; Specific impulse ; Time measurement</subject><ispartof>RSC advances, 2017-01, Vol.7 (35), p.21592-21599</ispartof><rights>Copyright Royal Society of Chemistry 2017</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c328t-63d941e8b6276964b26158c62bcc7eac77cdc4285ac76c22bbc592af99fb9f853</citedby><cites>FETCH-LOGICAL-c328t-63d941e8b6276964b26158c62bcc7eac77cdc4285ac76c22bbc592af99fb9f853</cites><orcidid>0000-0001-5675-8804 ; 0000-0001-5577-0529</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,860,27903,27904</link.rule.ids></links><search><creatorcontrib>Yuan, Yutao</creatorcontrib><creatorcontrib>Zhang, Yanqiang</creatorcontrib><creatorcontrib>Liu, Long</creatorcontrib><creatorcontrib>Jiao, Nianming</creatorcontrib><creatorcontrib>Dong, Kun</creatorcontrib><creatorcontrib>Zhang, Suojiang</creatorcontrib><title>Bicyclic ammonium ionic liquids as dense hypergolic fuels</title><title>RSC advances</title><description>It is critical for hypergolic fuels to be dense so as to enhance the performance of propellants and improve the loading of rockets. Considering that dense elements and bicyclic rings contribute to high density, two series of ionic liquids were prepared with 1-aza-bicyclo[2.2.2]octane-/1,4-diazabicyclo[2.2.2]octane-based cations and the dicyanamide anion. Their key properties were measured or calculated as decomposition temperature (208–322 °C), density (1.06–1.31 g cm
−3
), specific impulse (260.5 to 266.2 s) and ignition delay time (14–1053 ms). Compared with 1-aza-bicyclo[2.2.2]octane-based ionic liquids, the corresponding 1,4-diazabicyclo[2.2.2]octane-based ionic liquids exhibit a lower decomposition temperature, higher density and bigger specific impulse. As expected, 1-methyl-1-azonia-bicyclo[2.2.2]octane and 1-(prop-2-ynyl)-4-aza-1-azonia-bicyclo[2.2.2]octane dicyanamide possess higher densities (1.20 and 1.19 g cm
−3
) than the corresponding pyrrolidinium and imidazolium-based isomers (1.05 and 1.07 g cm
−3
), besides hypergolicity with white fuming nitric acid.</description><subject>Decomposition</subject><subject>Delay</subject><subject>Delay time</subject><subject>Density</subject><subject>Fuels</subject><subject>Ionic liquids</subject><subject>Isomers</subject><subject>Nitric acid</subject><subject>Rockets</subject><subject>Specific impulse</subject><subject>Time measurement</subject><issn>2046-2069</issn><issn>2046-2069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNpdkE9LAzEQxYMoWGovfoIFLyKsJpPdZHOsRa1QEETPITubtSn7r0n3sN_e1HoQ5_Le4cebmUfINaP3jHL1gNIbyqmi2zMyA5qJFKhQ53_8JVmEsKNxRM5AsBlRjw4nbBwmpm37zo1t4qJg0rj96KqQmJBUtgs22U6D9V_9Ea1H24QrclGbJtjFr87J5_PTx2qdbt5eXlfLTYocikMqeKUyZotSgBRKZGVcmxcooESU1qCUWGEGRR6tQICyxFyBqZWqS1UXOZ-T21Pu4Pv9aMNBty6gbRrT2X4MmimaQcYEhYje_EN3_ei7eJ0GFX_mUrJj4N2JQt-H4G2tB-9a4yfNqD4WqVfyfflT5Jp_A62QZCQ</recordid><startdate>20170101</startdate><enddate>20170101</enddate><creator>Yuan, Yutao</creator><creator>Zhang, Yanqiang</creator><creator>Liu, Long</creator><creator>Jiao, Nianming</creator><creator>Dong, Kun</creator><creator>Zhang, Suojiang</creator><general>Royal Society of Chemistry</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0001-5675-8804</orcidid><orcidid>https://orcid.org/0000-0001-5577-0529</orcidid></search><sort><creationdate>20170101</creationdate><title>Bicyclic ammonium ionic liquids as dense hypergolic fuels</title><author>Yuan, Yutao ; Zhang, Yanqiang ; Liu, Long ; Jiao, Nianming ; Dong, Kun ; Zhang, Suojiang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c328t-63d941e8b6276964b26158c62bcc7eac77cdc4285ac76c22bbc592af99fb9f853</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Decomposition</topic><topic>Delay</topic><topic>Delay time</topic><topic>Density</topic><topic>Fuels</topic><topic>Ionic liquids</topic><topic>Isomers</topic><topic>Nitric acid</topic><topic>Rockets</topic><topic>Specific impulse</topic><topic>Time measurement</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yuan, Yutao</creatorcontrib><creatorcontrib>Zhang, Yanqiang</creatorcontrib><creatorcontrib>Liu, Long</creatorcontrib><creatorcontrib>Jiao, Nianming</creatorcontrib><creatorcontrib>Dong, Kun</creatorcontrib><creatorcontrib>Zhang, Suojiang</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>RSC advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yuan, Yutao</au><au>Zhang, Yanqiang</au><au>Liu, Long</au><au>Jiao, Nianming</au><au>Dong, Kun</au><au>Zhang, Suojiang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Bicyclic ammonium ionic liquids as dense hypergolic fuels</atitle><jtitle>RSC advances</jtitle><date>2017-01-01</date><risdate>2017</risdate><volume>7</volume><issue>35</issue><spage>21592</spage><epage>21599</epage><pages>21592-21599</pages><issn>2046-2069</issn><eissn>2046-2069</eissn><abstract>It is critical for hypergolic fuels to be dense so as to enhance the performance of propellants and improve the loading of rockets. Considering that dense elements and bicyclic rings contribute to high density, two series of ionic liquids were prepared with 1-aza-bicyclo[2.2.2]octane-/1,4-diazabicyclo[2.2.2]octane-based cations and the dicyanamide anion. Their key properties were measured or calculated as decomposition temperature (208–322 °C), density (1.06–1.31 g cm
−3
), specific impulse (260.5 to 266.2 s) and ignition delay time (14–1053 ms). Compared with 1-aza-bicyclo[2.2.2]octane-based ionic liquids, the corresponding 1,4-diazabicyclo[2.2.2]octane-based ionic liquids exhibit a lower decomposition temperature, higher density and bigger specific impulse. As expected, 1-methyl-1-azonia-bicyclo[2.2.2]octane and 1-(prop-2-ynyl)-4-aza-1-azonia-bicyclo[2.2.2]octane dicyanamide possess higher densities (1.20 and 1.19 g cm
−3
) than the corresponding pyrrolidinium and imidazolium-based isomers (1.05 and 1.07 g cm
−3
), besides hypergolicity with white fuming nitric acid.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/c7ra03090h</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0001-5675-8804</orcidid><orcidid>https://orcid.org/0000-0001-5577-0529</orcidid><oa>free_for_read</oa></addata></record> |
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| source | DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Decomposition Delay Delay time Density Fuels Ionic liquids Isomers Nitric acid Rockets Specific impulse Time measurement |
| title | Bicyclic ammonium ionic liquids as dense hypergolic fuels |
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