Nitrogen-Doped Graphene Foam as Carbon Composites Catalysis Catalysts: Preparation, Properties and Applications

Abstract

AbstractThree-dimensional (3D) graphene architectures (hydrogel, aerogel, coke, foam, sponge) have become the preferred materials in many areas, especially in electronic applications. Graphene foams, which contain both graphene and 3D macroscopic material properties, provide many advantages for material science. These structures, which have concurrently high mechanical strength and flexibility, have offered the opportunity to be used in some electronic devices that require pressure application. Its lightweight is also proper for portable and wearable applications. Graphene foam composites with high electrical conductivity are often used as catalysts in different fields. By force of a 3D interconnected graphene network, the transfer of electrons and ions within the structure occurs in a facile way. The heteroatom (nitrogen (N), boron (B), phosphorus (P), sulfur (S)) doping to carbon materials has been one of the effective ways to modify the electronic and catalytic properties of the carbon host. In this chapter, some information on the synthesis and application areas of 3D N-doped graphene foam structures were presented. Graphene foams are synthesized and N-doped simultaneously with the chemical vapor deposition (CVD) method by a majority. The applications of the 3D N-doped graphene foams as carbon composite catalysts were evaluated in the fields of fuel cells, batteries, supercapacitors and other catalytic reactions. Additionally, other applications of 3D N-doped graphene foams were also briefly mentioned.KeywordsThree-dimensional materialGraphene foamHeteroatomNitrogen dopingCarbon composite catalyst