A New Energetic Complex: Synthesis, Structure, and Combustion Catalysis Performance
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532020000801746 |
Resumo: | The potential of tetrazole-based ligands for forming energetic complexes applied in pyrotechnics and propellants is demonstrated with the use of 5,5’-(1,3-phenylene)bis(1H-tetrazole) (H2BTB) to generate an energetic complex with high energy. A new energetic complex of PbII-tetrazolate, [Pb2(BTB)2(H2O)8]·5H2O (1), was synthesized and structurally characterized by single crystal X-ray diffraction. Structural analysis reveals that the central PbII ions present two distinct coordination environments in the asymmetric unit, including distorted pentagonal bipyramid and distorted tetragonal pyramid geometries, respectively. To identify potential combustion catalyst as additives in propellants, we employed differential scanning calorimetry technique to evaluate the influence of the complex on thermal decomposition of ammonium perchlorate (AP) and cyclotrimethylenetrinitramine (RDX). The kinetic parameters of an exothermic process for the catalytic system of RDX+1 were investigated by the Kissinger’s and Ozawa-Doyle’s methods. For both AP and RDX, the decomposition temperature decreased obviously in the presence of 1, and the released heat could effectively compensate the propellants. Our observations demonstrate that 1 shows good catalytic activity toward the thermal decomposition of AP and RDX. |
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A New Energetic Complex: Synthesis, Structure, and Combustion Catalysis Performancetetrazole-based complexnon-isothermal kineticsammonium perchloratecombustion catalysisThe potential of tetrazole-based ligands for forming energetic complexes applied in pyrotechnics and propellants is demonstrated with the use of 5,5’-(1,3-phenylene)bis(1H-tetrazole) (H2BTB) to generate an energetic complex with high energy. A new energetic complex of PbII-tetrazolate, [Pb2(BTB)2(H2O)8]·5H2O (1), was synthesized and structurally characterized by single crystal X-ray diffraction. Structural analysis reveals that the central PbII ions present two distinct coordination environments in the asymmetric unit, including distorted pentagonal bipyramid and distorted tetragonal pyramid geometries, respectively. To identify potential combustion catalyst as additives in propellants, we employed differential scanning calorimetry technique to evaluate the influence of the complex on thermal decomposition of ammonium perchlorate (AP) and cyclotrimethylenetrinitramine (RDX). The kinetic parameters of an exothermic process for the catalytic system of RDX+1 were investigated by the Kissinger’s and Ozawa-Doyle’s methods. For both AP and RDX, the decomposition temperature decreased obviously in the presence of 1, and the released heat could effectively compensate the propellants. Our observations demonstrate that 1 shows good catalytic activity toward the thermal decomposition of AP and RDX.Sociedade Brasileira de Química2020-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532020000801746Journal of the Brazilian Chemical Society v.31 n.8 2020reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.21577/0103-5053.20200062info:eu-repo/semantics/openAccessQiao,ChengfangFu,ZhengyuWang,RunrunGao,YulinChen,FengyingGao,XiaZhou,ChunshengXia,Zhengqiangeng2020-07-23T00:00:00Zoai:scielo:S0103-50532020000801746Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2020-07-23T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
A New Energetic Complex: Synthesis, Structure, and Combustion Catalysis Performance |
title |
A New Energetic Complex: Synthesis, Structure, and Combustion Catalysis Performance |
spellingShingle |
A New Energetic Complex: Synthesis, Structure, and Combustion Catalysis Performance Qiao,Chengfang tetrazole-based complex non-isothermal kinetics ammonium perchlorate combustion catalysis |
title_short |
A New Energetic Complex: Synthesis, Structure, and Combustion Catalysis Performance |
title_full |
A New Energetic Complex: Synthesis, Structure, and Combustion Catalysis Performance |
title_fullStr |
A New Energetic Complex: Synthesis, Structure, and Combustion Catalysis Performance |
title_full_unstemmed |
A New Energetic Complex: Synthesis, Structure, and Combustion Catalysis Performance |
title_sort |
A New Energetic Complex: Synthesis, Structure, and Combustion Catalysis Performance |
author |
Qiao,Chengfang |
author_facet |
Qiao,Chengfang Fu,Zhengyu Wang,Runrun Gao,Yulin Chen,Fengying Gao,Xia Zhou,Chunsheng Xia,Zhengqiang |
author_role |
author |
author2 |
Fu,Zhengyu Wang,Runrun Gao,Yulin Chen,Fengying Gao,Xia Zhou,Chunsheng Xia,Zhengqiang |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Qiao,Chengfang Fu,Zhengyu Wang,Runrun Gao,Yulin Chen,Fengying Gao,Xia Zhou,Chunsheng Xia,Zhengqiang |
dc.subject.por.fl_str_mv |
tetrazole-based complex non-isothermal kinetics ammonium perchlorate combustion catalysis |
topic |
tetrazole-based complex non-isothermal kinetics ammonium perchlorate combustion catalysis |
description |
The potential of tetrazole-based ligands for forming energetic complexes applied in pyrotechnics and propellants is demonstrated with the use of 5,5’-(1,3-phenylene)bis(1H-tetrazole) (H2BTB) to generate an energetic complex with high energy. A new energetic complex of PbII-tetrazolate, [Pb2(BTB)2(H2O)8]·5H2O (1), was synthesized and structurally characterized by single crystal X-ray diffraction. Structural analysis reveals that the central PbII ions present two distinct coordination environments in the asymmetric unit, including distorted pentagonal bipyramid and distorted tetragonal pyramid geometries, respectively. To identify potential combustion catalyst as additives in propellants, we employed differential scanning calorimetry technique to evaluate the influence of the complex on thermal decomposition of ammonium perchlorate (AP) and cyclotrimethylenetrinitramine (RDX). The kinetic parameters of an exothermic process for the catalytic system of RDX+1 were investigated by the Kissinger’s and Ozawa-Doyle’s methods. For both AP and RDX, the decomposition temperature decreased obviously in the presence of 1, and the released heat could effectively compensate the propellants. Our observations demonstrate that 1 shows good catalytic activity toward the thermal decomposition of AP and RDX. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-08-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532020000801746 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532020000801746 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.21577/0103-5053.20200062 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Journal of the Brazilian Chemical Society v.31 n.8 2020 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318183412137984 |