自支撑硫镍基电极材料制备及其赝电容性能

硫镍基赝电容超级电容器具有较高的比电容和功率密度等优点,是下一代理想的储能装置之一,但其实际应用受到其活性材料的制约,如导电性低和循环性能差等。研究者围绕增强硫镍基赝电容电极材料导电性和提升循环稳定性进行了大量的研究工作。其中,构建自支撑的电极材料被认为是一种降低活性材料和集流体之间界面电阻的有效方法。本文综述了制备自支撑硫镍基赝电容电极的常见方法,并就活性材料的形貌与性能关系进行了总结,主要着眼于集流体改性、离子掺杂、复合材料构建及形貌调控优化等。最后对自支撑硫镍基赝电容电极材料的研究方向进行了展望。

Ni/Co-based metal-organic frameworks as electrode material for high performance supercapacitors

A novel bimetallic Ni/Co-based metal-organic framework(Ni/Co-MOF) was successfully synthesized via a simple solvothermal method, and used as electrode material for high performance supercapacitors. After doping of Co element, the Ni/Co-MOF materials retain the original crystalline topology structure of Ni_3(BTC)_2·12H_2O.The as-obtained Ni/Co-MOF demonstrates an excellent specific capacitance of 1067 and 780 F/g at current density of 1 and 10 A/g, respectively, and can also retain 68.4% of the original capacitance after 2500 cycles. These results suggest that bimetallic Ni/Co-based MOFs are promising materials for the next generation supercapacitance,owing to their excellent electrochemical performance. The synthetic procedure can be applied to synthesize other bimetallic MOFs and enhance their conductive property.

一种海军舰艇保养过程中新型眼-呼吸道防护面罩的研制

舰艇保养是海军舰艇官兵的经常性工作之一,在除锈补漆等舰艇保养工作过程中,眼外伤和油漆中毒时有发生,目前海军舰艇官兵日常使用的劳动防护用品相对笨重,舒适感差。近年来海军入伍官兵近视比例和入伍前接受屈光矫正手术的人数不断增加,而防护面罩的护目镜普遍不具有屈光功能。这些都导致舰艇官兵作业时佩戴防护用品的依从性较差。针对这些问题,笔者研制了一种主要由护目镜、口鼻罩、过滤罐和固定装置四部分组成的新型眼-呼吸道防护面罩,具有抗冲击力强,镜片有屈光作用,可调节瞳距,也可整体或分体式佩戴,重量轻便,采用标准化接头等优点。