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A novel carbon allotrope, T-carbon, is attempted to obtain by using plasma enhanced chemical vapor deposition (PECVD) on the substrates of polycrystalline diamond and single crystalline diamond, respectively. Our measured x-ray diffraction, Raman and infrared spectra of the new form of carbon are in good agreement with the calculated results of T-carbon, and the lattice parameter meets with the results...
Spherical carbon beads with a uniform diameter of ca. 0.6–0.8mm and high mechanical strength can be prepared by hydrothermal synthesis. To optimise the performance of these adsorbents for pulverised fuel post-combustion capture, the efficacy of potassium intercalation via a KOH treatment has been investigated, deliberately using nitrogen-free phenolic resin derived activated carbon (AC) beads so that...
Novel MnO multi-core@nitrogen-doped carbon shell nanoparticles (MCNCmSPs) were developed through a facile polydopamine adhesive-assisted compositing procedure. Owing to their advanced multi-core@shell nanostructure, the as-prepared MCNCmSPs exhibited remarkable electrochemical performance as lithium-ion battery anode.
Carbon nanotubes (CNTs) and nitrogen-doped carbon nanotubes (N-CNTs) were synthesized using a floating catalyst chemical vapor deposition method and characterized by scanning electron microscopy (SEM), transmission electron microscopy, Raman and X-ray photoelectron spectroscopy. The study found that the as-prepared CNTs and N-CNTs showed different discharge capacity as cathode materials in Li-air...
Multi-wall carbon nanotube/Fe 3 O 4 hybrids were prepared by a chemical synthesis-hydrothermal treatment method and their electromagnetic wave absorbing properties were investigated in the frequency range of 8.2–12.4GHz (X band). As-prepared hybrids were characterized by transmission electron microscopy, X-ray diffraction and vibrating sample magnetometer. Results indicated that the...
We report a method for controllably fabricating a structurally stable array of multiwall carbon nanotubes (MWCNTs) with greatly enhanced surface area for catalyst loading as compared with a vertically aligned MWCNT forest. These structures may provide increased electrocatalytic activity for methanol oxidation reactions and oxygen reduction reactions in fuel cells. Potentiodynamic pretreatment is shown...
Phosphorus–nitrogen doped multiwalled carbon nanotubes (CN x P y ) were prepared using a floating catalyst chemical vapor deposition method. Triphenylphosphine (TPP), as phosphorus (P) precursor, was used to control the structure of the CN x P y . Transmission electron microscope (TEM) observation indicated that with the increase of TPP amount, the outer diameter and...
Nitrogen-doped carbon nanotubes (CN x –NTs) were prepared using a floating catalyst chemical vapor deposition method. Melamine precursor was employed to effectively control nitrogen content within the CN x –NTs and modulate their structure. X-ray photoelectron spectroscopy (XPS) analysis of the nitrogen bonding demonstrates the nitrogen-incorporation profile according to the precursor...
Carbon nanotubes (CNTs) together with carbon nanofibers (CNFs) have been produced on the surface of and inside mesocarbon microbeads containing Co nanoparticles during their activation with potassium hydroxide (KOH). The resulting CNFs consist of a number of platelet-shaped sub-units with width of about 500nm and thickness of 50nm. The CNTs, with diameter of about 200nm, grow from the inside to the...
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