Synthesis of novel heterobimetallic MOFs and its effect on thermolysis and laser ignition of TKX-50
Two novel heterobimetallic metal-organic frameworks (MOFs), Ba4Pb4(CH3CO2)8[(CH6CO2)4Pb](CH3CO2)4 (PbBa-MOFs) and Ba2Ni(CO2H)6(OH2)4 (NiBa-MOFs), were prepared via the solvothermal method, and their structures were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM) techn...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co. Ltd.
2022-12-01
|
| Series: | FirePhysChem |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667134421000663 |
| _version_ | 1828071548428222464 |
|---|---|
| author | Chao Chen Haijian Li Jianhua Yi Zhao Qin Changjian Wang Zhihua Sun Yi Xu Siyu Xu Kangzhen Xu Fengqi Zhao |
| author_facet | Chao Chen Haijian Li Jianhua Yi Zhao Qin Changjian Wang Zhihua Sun Yi Xu Siyu Xu Kangzhen Xu Fengqi Zhao |
| author_sort | Chao Chen |
| collection | DOAJ |
| description | Two novel heterobimetallic metal-organic frameworks (MOFs), Ba4Pb4(CH3CO2)8[(CH6CO2)4Pb](CH3CO2)4 (PbBa-MOFs) and Ba2Ni(CO2H)6(OH2)4 (NiBa-MOFs), were prepared via the solvothermal method, and their structures were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM) techniques. The pyrolysis behavior of the two MOFs and their catalytic performances on the dihydroxylammonium-5,5’-bistetrazole-1,1’-diolate (TKX-50) pyrolysis were studied by thermogravimetric-differential scanning calorimetry (TG-DSC) and thermogravimetric-fourier transform infrared spectroscopy-mass spectrum (TG-FTIR-MS) methods. Compare with the pure TKX-50, the pyrolysis peak temperature and apparent activation energy (Ea) of the TKX-50/PbBa-MOFs mixture were decreased by 3.2°C and 13.47 kJ‧mol−1 respectively. The Ea of TKX-50/NiBa-MOFs was decreased by 9.35 kJ‧mol−1. And the second pyrolysis peak disappeared in the DSC curves of TKX-50 after the addition of the two MOFs, due to that the products from MOFs pyrolysis suppress the chemical reaction pathway on the production of 5,5′-bis (2-hydroxytetrazole) (ABTOX) and accelerate the direct decomposition of 1,1’-bistetrazole diol (BTO). This resulted in the percentage of H2O decreased greatly and the percentage of NO/CH2O, CO2/N2O, NH2+/O• and NH3/OH increased during the pyrolysis of TKX-50. Finally, the relation between the pyrolysis and ignition characteristics was discussed and described. The two MOFs reduced the ignition delay time of the TKX-50 at the high power density region, and the flame becomes more luminous due to the formation of metal oxides and active free radical. |
| first_indexed | 2024-04-11T00:54:45Z |
| format | Article |
| id | doaj.art-bfe0ee4e2ce748d191384c25c3744bae |
| institution | Directory Open Access Journal |
| issn | 2667-1344 |
| language | English |
| last_indexed | 2024-04-11T00:54:45Z |
| publishDate | 2022-12-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | FirePhysChem |
| spelling | doaj.art-bfe0ee4e2ce748d191384c25c3744bae2023-01-05T06:24:53ZengKeAi Communications Co. Ltd.FirePhysChem2667-13442022-12-0124295302Synthesis of novel heterobimetallic MOFs and its effect on thermolysis and laser ignition of TKX-50Chao Chen0Haijian Li1Jianhua Yi2Zhao Qin3Changjian Wang4Zhihua Sun5Yi Xu6Siyu Xu7Kangzhen Xu8Fengqi Zhao9Science and Technology on Combustion and Explosion Laboratory, Xi'an Modern Chemistry Research Institute, 168 Zhangba Road, Xi'an 710065, PR ChinaScience and Technology on Combustion and Explosion Laboratory, Xi'an Modern Chemistry Research Institute, 168 Zhangba Road, Xi'an 710065, PR ChinaScience and Technology on Combustion and Explosion Laboratory, Xi'an Modern Chemistry Research Institute, 168 Zhangba Road, Xi'an 710065, PR ChinaScience and Technology on Combustion and Explosion Laboratory, Xi'an Modern Chemistry Research Institute, 168 Zhangba Road, Xi'an 710065, PR ChinaScience and Technology on Combustion and Explosion Laboratory, Xi'an Modern Chemistry Research Institute, 168 Zhangba Road, Xi'an 710065, PR ChinaScience and Technology on Combustion and Explosion Laboratory, Xi'an Modern Chemistry Research Institute, 168 Zhangba Road, Xi'an 710065, PR ChinaScience and Technology on Combustion and Explosion Laboratory, Xi'an Modern Chemistry Research Institute, 168 Zhangba Road, Xi'an 710065, PR ChinaScience and Technology on Combustion and Explosion Laboratory, Xi'an Modern Chemistry Research Institute, 168 Zhangba Road, Xi'an 710065, PR ChinaSchool of Chemical Engineering, Northwest University, Xi'an 710069, PR ChinaScience and Technology on Combustion and Explosion Laboratory, Xi'an Modern Chemistry Research Institute, 168 Zhangba Road, Xi'an 710065, PR China; Corresponding author.Two novel heterobimetallic metal-organic frameworks (MOFs), Ba4Pb4(CH3CO2)8[(CH6CO2)4Pb](CH3CO2)4 (PbBa-MOFs) and Ba2Ni(CO2H)6(OH2)4 (NiBa-MOFs), were prepared via the solvothermal method, and their structures were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM) techniques. The pyrolysis behavior of the two MOFs and their catalytic performances on the dihydroxylammonium-5,5’-bistetrazole-1,1’-diolate (TKX-50) pyrolysis were studied by thermogravimetric-differential scanning calorimetry (TG-DSC) and thermogravimetric-fourier transform infrared spectroscopy-mass spectrum (TG-FTIR-MS) methods. Compare with the pure TKX-50, the pyrolysis peak temperature and apparent activation energy (Ea) of the TKX-50/PbBa-MOFs mixture were decreased by 3.2°C and 13.47 kJ‧mol−1 respectively. The Ea of TKX-50/NiBa-MOFs was decreased by 9.35 kJ‧mol−1. And the second pyrolysis peak disappeared in the DSC curves of TKX-50 after the addition of the two MOFs, due to that the products from MOFs pyrolysis suppress the chemical reaction pathway on the production of 5,5′-bis (2-hydroxytetrazole) (ABTOX) and accelerate the direct decomposition of 1,1’-bistetrazole diol (BTO). This resulted in the percentage of H2O decreased greatly and the percentage of NO/CH2O, CO2/N2O, NH2+/O• and NH3/OH increased during the pyrolysis of TKX-50. Finally, the relation between the pyrolysis and ignition characteristics was discussed and described. The two MOFs reduced the ignition delay time of the TKX-50 at the high power density region, and the flame becomes more luminous due to the formation of metal oxides and active free radical.http://www.sciencedirect.com/science/article/pii/S2667134421000663MOFsHeterobimetallicTKX-50PyrolysisCatalysis |
| spellingShingle | Chao Chen Haijian Li Jianhua Yi Zhao Qin Changjian Wang Zhihua Sun Yi Xu Siyu Xu Kangzhen Xu Fengqi Zhao Synthesis of novel heterobimetallic MOFs and its effect on thermolysis and laser ignition of TKX-50 FirePhysChem MOFs Heterobimetallic TKX-50 Pyrolysis Catalysis |
| title | Synthesis of novel heterobimetallic MOFs and its effect on thermolysis and laser ignition of TKX-50 |
| title_full | Synthesis of novel heterobimetallic MOFs and its effect on thermolysis and laser ignition of TKX-50 |
| title_fullStr | Synthesis of novel heterobimetallic MOFs and its effect on thermolysis and laser ignition of TKX-50 |
| title_full_unstemmed | Synthesis of novel heterobimetallic MOFs and its effect on thermolysis and laser ignition of TKX-50 |
| title_short | Synthesis of novel heterobimetallic MOFs and its effect on thermolysis and laser ignition of TKX-50 |
| title_sort | synthesis of novel heterobimetallic mofs and its effect on thermolysis and laser ignition of tkx 50 |
| topic | MOFs Heterobimetallic TKX-50 Pyrolysis Catalysis |
| url | http://www.sciencedirect.com/science/article/pii/S2667134421000663 |
| work_keys_str_mv | AT chaochen synthesisofnovelheterobimetallicmofsanditseffectonthermolysisandlaserignitionoftkx50 AT haijianli synthesisofnovelheterobimetallicmofsanditseffectonthermolysisandlaserignitionoftkx50 AT jianhuayi synthesisofnovelheterobimetallicmofsanditseffectonthermolysisandlaserignitionoftkx50 AT zhaoqin synthesisofnovelheterobimetallicmofsanditseffectonthermolysisandlaserignitionoftkx50 AT changjianwang synthesisofnovelheterobimetallicmofsanditseffectonthermolysisandlaserignitionoftkx50 AT zhihuasun synthesisofnovelheterobimetallicmofsanditseffectonthermolysisandlaserignitionoftkx50 AT yixu synthesisofnovelheterobimetallicmofsanditseffectonthermolysisandlaserignitionoftkx50 AT siyuxu synthesisofnovelheterobimetallicmofsanditseffectonthermolysisandlaserignitionoftkx50 AT kangzhenxu synthesisofnovelheterobimetallicmofsanditseffectonthermolysisandlaserignitionoftkx50 AT fengqizhao synthesisofnovelheterobimetallicmofsanditseffectonthermolysisandlaserignitionoftkx50 |