Synergistic Carbonization Of Polypropylene And Biomass For The Preparation And Application Of Carbon Nanotube-based Hybrid Materials

Currently, the synthesis of pure carbon nanotubes has been relatively mature and in some areas has been truly achieved the purpose of replacing traditional materials, while the study of carbon nanotube-based hybrid materials is still in the initial stage. As hybrid materials often displays some combined and excellent properties of both materials and even provides new features, therefore, the study of carbon nanotube-based hybrid material has important research value. In this paper, C-C hybrid materials of rice-based biochar-CNTs hybrid materials, coral-like rice-based-CNTs hybrid materials and cellulose-grafted carbon nanotubes this three novel CNTs hybrid materials were designed and synthesized on the basis of one-step cracking of polymer to synthesized carbon nanotubes. The application performance of new materials was also investigated.In this paper, rice-based biocchar-CNTs hybrid materials were synthesized by one-step cracking of PP/Ni-Mo-Mg/Cl-Rice-Char composites. In order to characterize microstructure,phase structure, thermal stability and adsorption properties of carbon products, and explore the synergetic mechanism between Cl-Rice-Char and Ni-Mo-Mg, scanning electron microscopy(SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman spectroscopy (Raman), thermogravimetric analyzer (TGA), N2-adsorption-desorption test and X-ray photoelectron spectroscopy (XPS) was carried out. The results show that Cl-Rice-Char synergistic with Ni-Mo-Mg catalyst in the thermal cracking of composites, which lead to further accelerates the dehydrogenation of PP to synthesis CNT. Simultaneously, it can control the release rate of NH4Cl to extend the synergistic performance. When 5wt% Cl-Rice-Char was added, carbon product with the best morphology. The results of adsorption experiments show that the adsorption capacity of this novel hybrid material up to 452.5mg/g.In this paper, laws of synergetic catalytic effect of Ni2O3/NH4Cl system on co-cracking of PP/rice husk to preparation of biomass-carbon nanotubes hybrid materials were investigated by the control variable method. And the microstructure, phase structure and thermal stability of carbon products were characterized and analyzed by means of corresponding detection methods. The results showed that Ni2O3, NH4Cl and rice husk were able to produce a synergistic effect under the best ratio. When the ratio of composite material was PP/5%Ni2O3/0.5%NH4Cl/10%rice husk, coral-like rice husk-carbon nanotubes hybrid materials can be getted by one step pyrolysis this composite material. The results of adsorption test show that the adsorption capacity of coral-like rice husk-carbon nanotube hybrid material is good.In this paper, C-C hybrid materials (cellulose-grafted carbon nanotubes hybrid materials)were synthesized by catalytic cracking of PP/Cellulose blends using Ni-Mo-Mg. The microstructure, phase structure and thermal stability of C-C hybrid materials were analyzed using a variety of characterization methods. The results show that when the ratio of each component was PP/5%Ni-Mo-Mg/30%Cellulose, the best morphology of C-C hybrid material can be obtained by cracking the composite material. In the pyrolysising process, PP is only used as a carbon source for the growth of carbon nanotubes. Cellulose is only used as a precursor for macroscopic carbon substrates. The role of Ni-Mo-Mg catalyst is to catalyzed the dehydrogenation of PP to generate CNTs grafted at the defect of cellulose carbon matrix as maternal.