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This work proposed a novel and facile in situ precipitation procedure for synthesis of CuO nanoparticles decorated hierarchical Ce-metal-organic framework nanocomposite (CuONPs/Ce-MOF). The Ce-MOF and CuONPs/Ce-MOF was characterized using electron microscopies, X-ray diffraction, X-ray photoelectron spectroscopy, and thermogravimetry analysis, which showed CuONPs uniformly on straw-sheaf-shaped Ce-MOF...
Ni-based catalysts with nitrogen-doped three-dimensional graphene (3DNG) as the carrier were prepared by freeze orientation and high-temperature calcination. The structure, morphology, and surface composition of the electrocatalyst were characterized by X-ray diffractometry, field emission scanning electron microscopy, field emission transmission electron microscopy, and X-ray photoelectron spectroscopy...
We propose that the Li anode can be protected by a Cu coating via the technique of magnetron sputtering. Cu has high electrical conductivity, mechanical strength, and chemical stability. Li deposition on Cu coating with a porous structure disperses the local current density and produces a uniform Li-ion flux, greatly suppressing growth of Li dendrites and the layer prevents Li from directly contacting...
Conductive carbon films (CF1) were made of carbonized filter paper and modified with titanium(Ti) and aluminum(Al) thin films deposited on their surface by radiofrequency magnetron sputtering to prepare carbon films CF2 and CF3 as functional interlayers for lithium-sulfur (Li-S) batteries, with the cathode material (S-AC) synthesized with elemental sulfur (S) and activated carbon (AC). Material characterization...
Porous carbon has high specific area and total pore volume but weak interaction with dissolved polysulfides. Conductive polar metal compound has strong chemical adsorption of polysulfides but difficult to attain high porosity to encapsulate sulfur series. Instead of efforts on the cathode, we prepared a composite made up of titanium nitride and three-dimensional micro-/mesoporous carbon by a facile...
A highly sensitive electrochemical bisphenol A (BPA) sensor was developed based on cetyltrimethylammonium bromide (CTAB) functionalized carbon nanohorn (CNH) modified electrode. CNH was carboxylated and could well disperse in water, and CNH-modified electrode showed enhanced electron transfer and high conductivity. Carboxylic CNH was functionalized with a cationic surfactant (CTAB) via the electrostatic...
A mesoporous carbon (MC) is prepared by the method of hard-template. Cathode materials (S/MC) for Li-S battery were synthesized. Properties of S, MC, and S/MC were characterized by BET, XRD, Raman, HRTEM, and FESEM. Electrochemical performances of the batteries were determined by AC impedance, cyclic voltammetry, and constant-current charging and discharging. Experiments show that MC, prepared with...
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