College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 201620 Shanghai, China.
College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 201620 Shanghai, China.
J Colloid Interface Sci. 2017 Dec 15;508:426-434. doi: 10.1016/j.jcis.2017.08.035. Epub 2017 Aug 16.
A three-dimensional (3D) electrode material was successfully synthesized through a facile ZnO-assisted hydrothermal process in which vertical MnO nanotube arrays were in situ grown on the conductive graphene/polyester composite fabric. The morphology and structure of MnO nanotubes/graphene/polyester textile electrode were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The 3D electrode structure facilitates to achieve the maximum number of active sites for the pesudocapacitance redox reaction, fast electrolyte ion transportation and short ion diffusion path. The electrochemical measurements showed that the electrode possesses good capacitance capacity which reached 498F/g at a scan rate of 2mV/s in NaSO electrolyte solution. The electrode also showed stable electrochemical performances under the conditions of long-term cycling, and mechanical bending and twisting.
通过简便的 ZnO 辅助水热工艺成功合成了一种三维（3D）电极材料，其中垂直的 MnO 纳米管阵列原位生长在导电的石墨烯/聚酯复合织物上。MnO 纳米管/石墨烯/聚酯纺织品电极的形貌和结构通过扫描电子显微镜（SEM）、透射电子显微镜（TEM）、X 射线衍射（XRD）和 X 射线光电子能谱（XPS）进行了表征。3D 电极结构有利于实现赝电容氧化还原反应的最大活性位点数量、快速的电解质离子传输和短的离子扩散路径。电化学测量表明，该电极在 NaSO 电解质溶液中具有良好的电容能力，在扫描速率为 2mV/s 时达到 498F/g。该电极在长期循环、机械弯曲和扭曲条件下也表现出稳定的电化学性能。
