Fabrication of CNT/CMK3 Carbon Composites with High Electrical/Thermal Conductive Properties

Abstract

Composite materials of mesoporous carbon and carbon nanotubes were synthesized using Ni, Co and Pdloaded CMK3 via a catalytic reaction of methane and CO 2 . The CNTs grew from the pores of the mesoporous carbon supports, and they were attached tightly to the CMK3 surface in a densely tangled shape. The CNT/ CMK3 composite showed both non-graphitic mesoporous structures, and graphitic characteristics originating from the MWCNTS grown in the pores of CMK3. The electrochemical properties of the materials were characterized by their electrorheological effects and cyclic voltammetry. The CNTs/CMK3 composites showed high electrical conductivity and current density. The CNT/CMK3 or KOH-modified CNT/CMK3 particles were incorporated in a PMMA matrix to improve the thermal and electrical conductivity. Even higher thermal conductivity was achieved by the addition of KOH-modified CNT/CMK3 particles.

Nanocarbons in different structural dimensions (0–3D) for phenol adsorption and metal-free catalytic oxidation

“…S1 shows the Raman spectra of different carbon nanomaterials before and after thermal treatments. The D band and G band of these different carbon nanomaterials before the thermal annealing are consistent with previous studies [24,[26][27][28]. The I D /I G ratios of different carbon nanomaterials are listed in Table 1.…”

“…Fig. 1(b) shows XRD patterns of 1D SWCNTs and SWCNTs-T. Two characteristic peaks were found approximately at 2Â = 26 • and 43 • , corresponding to (0 0 2) and (1 0 0) planes, respectively [24,25]. XRD characteristic peaks of GNP were consistent well with those of graphene.…”

“…For CMK-3 and CMK-8, the SSA values were slightly higher than the data provided by the supplier [24,31,32].…”

“…For 3D CMK-3 and CMK-3-T, phenol removals by catalytic oxidation at 60 min were 100%. It was suggested that 3D hexagonally-ordered mesoporous structure has provided sufficient edged defects with the contribution of high SSA of 1129 m 2 /g even in the pristine condition [24,56]. For the 3D CMK-8 and CMK-8-T, catalytic oxidation of phenol at 60 min was 76% and 100%, respectively.…”