硝基芳烃类爆炸物在恐怖袭击活动中广泛使用，对其进行准确、快速、痕量的检测是国际上关注的重要问题。本课题针对国内便携式电化学爆炸物检测仪研究领域的空白，提出以多种纳米材料层层复合、协同增敏，构筑高灵敏爆炸物检测纸电极的全新思路。拟以石墨烯-离子液体-碳纳米管复合纸为基底，通过电聚合法负载聚苯胺，再利用溅射沉积、超声电沉积、浸渍拉膜等方法将纳米金属催化剂负载其上，从而制备具有多层次结构、柔性、无支撑的金属纳米催化剂/聚苯胺/石墨烯-离子液体-碳纳米管复合纸电极。优化各层面纳米材料的组成和结构，探讨微纳结构与识别效果之间的关系。考查复合纸电极对不同种类硝基芳烃的检测性能，建立灵敏、可靠的爆炸物检测分析方法。本研究为开发具有普适意义的高性能爆炸物检测试纸提供了创新方法，为研制新型爆炸物电化学传感器奠定了坚实基础，对预防和打击恐怖犯罪，维护世界和平意义重大。

Nitroaromatic explosives are widely used in terrorist attacks, their accurate, rapid and trace detection has become an important issue of international concern. To fill the domestic blank in the field of portable electrochemical detection device for explosives, we propose a new idea for fabricating highly sensitive paper electrode based on the layer-by-layer assembly and synergistic sensitization of various nanomaterials. Here is our design strategy: 1) graphene-ionic liquid-carbon nanotube hybrid paper is prepared and employed as substrate； 2）polyaniline is decorated on the surface and layer gap of the paper by electropolymerization； 3）metallic nanoparticle catalyst is coated on the as-prepared composite materials by sputter coating, ultrasonication electrodeposition and dip-coating techniques. Finally, a hierarchical, flexible, freestanding metallic nanoparticle catalyst/polyaniline/graphene-ionic liquid-carbon nanotube hybrid paper is obtained. The composition and structure of each level of the paper electrode are optimized to explore the relationship between the micro/nano structure and the recognition effect. The performance of paper electrode for detection of different nitroaromatic explosives is investigated, which could be used for establishing sensitive and reliable electroanalytical method for explosives detection. We envision that this proposal will provide innovative method on the fabrication of high performance test strip for explosive detection, and lay a solid foundation for the research and development of portable electrochemical sensor for explosives, and also is of great significance for preventing and fighting against terrorism, as well as safeguarding world peace.