journal article·2024-06-01

Preparation of metal–organic framework-199 (Cu) and their effects on catalytic decomposition of hexahydro-1,3,5-trinitro-s-triazine

Xiaoxiao Wang, Cenlin Pan, Yingying Wu, Jiajing Xie, Mohamed M Ibrahim, Zeinhom M El-Bahy, Safaa N Abdou, Xiaofeng Shi, Ben Bin Xu, Jiang Guo

Emerging Materials Research· Volume 13· Issue 2
Publisher page

Abstract

In this study, a series of metal–organic framework-199 (MOF-199) products were prepared with copper (Cu) as the metal center and trimesic acid as the organic ligand. The morphological changes of MOF-199 under different preparation conditions and its application in the catalytic thermal decomposition of hexahydro-1,3,5-trinitro-s-triazine (RDX) were studied. The morphological changes of MOF-199 were compared by scanning electron microscopy (SEM), the crystal structures of MOF-199 were analyzed by X-ray diffraction and the effects of MOF-199 with different morphological characteristics on the thermal decomposition behavior of RDX were studied by differential scanning calorimetry. The results showed that MOF-199 with different morphologies could effectively adjust the thermal decomposition process of RDX and reduce the decomposition peak temperature of RDX, and the catalytic effect of MOF-199 was different due to different crystal surfaces exposed. Among them, (110) was a highly active crystal plane with a high catalytic activity. In addition to the crystal plane structure, the defects on the surface of MOF-199 would also affect its catalytic performance. This study provides some theoretical support for the catalytic mechanism of MOFs in the thermal decomposition of nitro compounds.
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Research context

OpenAlex topics: Metal-Organic Frameworks: Synthesis and Applications · Energetic Materials and Combustion · Graphene research and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Natural Resources and Environment, Northwest A&F University, Xianyang, China

School of Environment and Safety Engineering, North University of China, Taiyuan, China

Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi’an, China; College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, China

Department of Chemistry, College of Science, Taif University, Taif, Saudi Arabia

Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, Egypt

Department of Chemistry, Khurmah University College, Taif University, Taif, Saudi Arabia

Department of Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, UK

Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi’an, China

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