CDs/Fe 2 O 3 composite catalyst and its effect on the thermal decomposition and ignition combustion of TKX-50
Journal of Molecular Structure, ISSN: 0022-2860, Vol: 1310, Page: 138279
2024
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Article Description
The carbon dots (CDs) were obtained by oxidation etching of coal pitch powder with peroxic acid. The CDs/Fe 2 O 3 composites were in-situ prepared by hydrothermal method. The composition, morphology and structure of CDs and CDs/Fe 2 O 3 were analyzed by TEM/HRTEM, XRD, EDS and XPS. The effects of CDs, Fe 2 O 3 and CDs/Fe 2 O 3 on the thermal decomposition of TKX-50 were studied by DSC-MS-FTIR and in-situ-solid FTIR. The three materials decreased the peak temperature of TKX-50 by 12.1, 33.9 and 39.0℃ (under the warming rate of 10℃·min −1 ). The CDs/Fe 2 O 3 showed best catalytic performance. The carboxyl group contained on the surface of CDs adsorbed NH 3, inhibiting the formation of by-decomposition products ABTOX. Besides assimilating NH 3 and restraining the agglomeration of Fe 2 O 3, the CDs/Fe 2 O 3 provided more active sites for decomposition which reduce the decomposition and activation energy of TKX-50 and promoted the reaction. Furthermore, CDs/Fe 2 O 3 reduced the ignition delay time of TKX-50 and significantly increased the flame propagation speed and flame area. Therefore, CDs and its compound CDs/Fe 2 O 3 have excellent application prospects in solid propellant combustion catalysts.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0022286024007993; http://dx.doi.org/10.1016/j.molstruc.2024.138279; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85189934862&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0022286024007993; https://dx.doi.org/10.1016/j.molstruc.2024.138279
Elsevier BV
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