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Herein, we report a theoretical study of polymeric nanocomposites to provide physical insight into complex material systems in elastic regions. A self-consistent scheme is adopted to predict piezoresistive characteristics, and the effects of the interface and of tunneling on the effective piezoresistive and electrical properties of the nanocomposites are simulated. The overall piezoresistive sensitivity...
Carbon quantum dots (CQDs) reinforced polypyrrole nanowire (PPy-NW) was constructed via electrostatic self-assembly strategy. The as-made CQDs/PPy-NW composite demonstrated superior electrochemical properties benefited from a dotted line structure with large specific area, more active sites and outstanding electronic conductivity. As the results, the CQDs/PPy-NW composite electrode displayed a specific...
We report a facile method to fabricate Bi2MoO6 nanosheet array exposed with {010} facets for the highly improved photoelectrochemical (PEC) property related to water oxidation. The nanosheet array film would provide large surface area, low resistance and exposed oxygen atoms, facilitating the electrons transport and charge separation. More importantly, the optimized Bi2MoO6 nanosheet array yields...
In the last decades, carbon fibers with light weight and high strength have experienced the largely increased uses in various industrial applications. However, their expected uses in the automotive industry and building are largely limited because of their high production cost. Herein, we have demonstrated an effective method of making low cost carbon fibers via the melt spinning of petroleum-processing...
It has become critically important to develop reliable method to transfer chemical vapor deposited (CVD) graphene from its growth substrate to the target substrate without leaving undesired polymer residues on the graphene surface. Here, we have found that for the two different transfer method – wet transfer using poly(methyl methacrylate) (PMMA) and dry transfer using polydimethylsiloxane (PDMS)...
Single wall carbon nanotubes (SWCNTs) were treated with a HNO 3 /H 2 SO 4 mixed solution to increase the number of narrow micropores. The mixed acid treatment increased the micropore volume from 0.13 to 0.35mLg −1 as measured by N 2 adsorption at 77 K. The micropore volume evaluated with CO 2 adsorption at 273K increased from 0.06 to 0.27mLg −1 ...
N-alloyed activated carbon fibers (ACFs) were prepared by chemical vapor deposition (CVD) of pyridine on pitch-based ACF at 1023 K and 1273 K for 1 h. The N-alloyed ACFs were characterized by using the N 2 adsorption at 77 K, CO 2 adsorption at 273 K, elemental analysis, and X-ray photoelectron spectroscopy (XPS). The nitrogen content increases as a result of the pyridine-CVD. XPS...
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