关键词：金属纳米粒子；碳纳米管复合材料；控制器
摘 要：In composites, two or more materials are combined in order to employ their individual virtues while minimizing their deficiencies. In general, these hybrid systems exhibit new chemico-physical characteristics that originate from the cooperative effect of the distinctive properties of the materials used. In its own particular way, the engineering of composite carbon-based materials through decoration with metal NanoParticles (NPs) has proved to be key for the improvement of the intrinsic properties of graphene and Carbon NanoTubes (CNTs). A plethora of methods have been employed for the controlled deposition and immobilization of metal NPs onto the CNT surface. To this end, both physical and chemical approaches have been recently developed; each offering its own strengths and weaknesses, which can then be tailored for specific applications. Here we start with an overview of the main methods used for the synthesis of these hybrid systems, with emphasis on the most meaningful examples described in the literature. Metal NP-CNT composites are highly suitable for a number of practical applications ranging from catalysis to optoelectronics to chemical and bio-sensing. The Chapter reports the main efforts carried out to date to integrate metal NP-CNT composites in high-performance nano-devices. The use of modified CNTs often proved more effective than that of pristine ones; however in some cases decoration with metal NPs leads to no improvement. This Chapter sets out to describe the mechanisms, which improve decorated CNTs or pristine CNTs according to the case involved. We conclude by considering metal filled-CNTs, a special class of metal modified-CNTs. The different approaches to filling CNTs with metal NPs are discussed; we then focus on their use as magnetic probes and microwave absorbing materials.