Egg yolk shell type MIL-88A@CoFe-LDH@ZIF-67 is used for achieving continuous catalysis of ammonium perchlorate decomposition in all stages

影响因子：6.4

DOI码：10.1016/j.icheatmasstransfer.2026.111728

发表刊物：International Communications in Heat and Mass Transfer

关键字：Egg yolk shell type; Ammonium perchlorate; Heterogeneous catalysis; Graded core-shell structure; Adsorption-conversion mechanism

摘要：Composite or heterostructure materials often exhibit unexpected catalytic effects on substances with multi-stage and multi-phase decomposition characteristics. Taking ammonium perchlorate (AP) as an example, developing efficient catalytic materials is crucial for improving the burning rate of solid propellants. This study successfully designed a novel yolk shell shape MIL-88A@CoFe-LDH@ZIF-67 composite material achieved sustained and efficient catalysis for the entire stage of AP decomposition. More importantly, the initial decomposition process of AP is significantly advanced, which is a new discovery compared to previous reports. System experiments and analysis indicate that it has been demonstrated that hierarchical pore interface constructed by the yolk shell structure can regulate the mass transfer pathway of AP decomposition products. MIL-88A provides the structural basis, the CoFe-LDH intermediate layer supports the initial decomposition promotion process of AP, and the ZIF-67 shell enhances the selectivity of AP decomposition products towards NO and its derivatives. This work provides new ideas for the functional design of multi-level porous interface materials and the catalytic mass transfer regulation guided by surface interface interactions.

合写作者：Tang Xiaolin,Zhou Yuming,Yuan Bo,Liu Yixin

论文类型：期刊论文

通讯作者：Zhou Peng*,Huang Chi*

论文编号：111728

文献类型：J

卷号：178

页面范围：111728，2026

是否译文：否

发表时间：2026-06-28

收录刊物：SCI

发布期刊链接：https://www.sciencedirect.com/science/article/pii/S0735193326012492?dgcid=author