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Supercapacitors and Electrodes for Lithium Ion Batteries of Copper oxide

Pseudocapacitors, also known as one type of supercapacitors, have attracted significant attention of researchers as efficient energy storage devices with superior properties such as high power density, excellent reversibility, and long cycle lifetime-dependent power, which are necessary properties of electronics portable devices. As the demand for high-capacity energy storage in modern life has been raised continuously, pseudocapacitors have become a hot topic recently. Among transition metal oxides considered ideal electrode materials for pseudocapacitors, CuO is an up-and-coming candidate for its abundant resources, environmental compatibility, cost-effectiveness, and favorable pseudocapacitive characteristics. It was found that the morphology and particle size of CuO remarkably affected its specific capacity. Cauliflower-like nanobelt-shaped, and feather-like CuO nanocrystals were synthesized by the chemical deposition method by H. Zhang and M. Zhang. According to the authors, morphologies of the CuO nanostructures can influence the electrochemical properties significantly. The improvement of morphology enhanced the electrochemical properties of CuO as electrode material. Cauliflower-like CuO exhibited a higher specific capacitance (116.9 F g−1) than nanobelt-shaped and feather-like CuO and showed good reversibility. The specific capacitance of cauliflower-like CuO (115.3 F g−1) was 343.5% higher than CuO bought (26 F g−1) at five mA cm−2. The CuO cauliflower-like exhibited a higher utilization efficiency and better property for electrolyte diffusion than the feather-like and nanobelts structures. The increasing order of the specific capacitance was consistent with the growing sequence for CuO specific surface area, indicating that the highly mesoporous design and high specific surface area of the electrode facilitate the ions to transfer into the porous structure more efficiently, which would lead to more redox faradic reactions and surface adsorption of electrolyte cations. If you are looking for high quality, high purity, and cost-effective copper oxide, or if you require the latest price of copper oxide, please feel free to email contact mis-asia.

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