【摘 要】
:
Electrochemical capacitors (ECs) (also called supercapacitors or ultracapacitors) with the characteristics of both huge energy and power densities, have bee
【出 处】
:
The 3rd International Symposium on Rare Earth Resource Utili
论文部分内容阅读
Electrochemical capacitors (ECs) (also called supercapacitors or ultracapacitors) with the characteristics of both huge energy and power densities, have been widely used as auxiliary devices of rechargeable batteries.1,2 Due to their different charge storage mechanisms, ECs can be categorized as electric double-layer capacitors (EDLCs) and pseudocapacitors.For pseudocapacitors, Faradaic redox reactions are involved during the charge-discharge processes, while no charge transfer occurs between the interlayer of electrode and electrolyte for EDLCs.3 As an important type of electrode materials for pseudocapacitors, various MnO2 products have been continuously studied in our laboratory because of their high theoretical specific capacitance, low cost, abundance and environmentally friendly nature, as well as the multiple oxidation states of Mn.
其他文献
我市城镇人口日趋增多,而城郊蔬菜面积却逐年递减,蔬菜严重短缺。为了生产出更多的优质早熟蔬莱供应春淡市场,缓解供需矛盾。我们从1985年冬开始,在仙桃市城郊试用塑料中棚
《中华人民共和国民法典》(以下简称《民法典》)第一干零三十二条规定:自然人享有隐私权.任何组织或者个人不得以刺探、侵扰、泄露、公开等方式侵害他人的隐私权.《民法典》
The convenient electrochemical deposition method has been adopted to synthesis CdSe quantum dots on TiO2 nanorod which provide a direct current pathway for
闲暇道德与精神文明的建设彭先桃新工时制实施后,经济学家们讨论了缩短工时与国民生产总值增长的关系问题,社会学家们探讨了国民闲暇生活方式的问题,教育学家研究了提高国民闲暇生活质量的问题。本文试图从伦理学角度,就闲暇道德与社会主义精神文明建设的关系问题谈点...
The growth, processing, use, effects and service life of crystals were affected by the quality of mechanical properties.Thus, as an important scintillator,
ZnTiO3 were successfully prepared by solid state reaction using TiO2 and different Zn-contained compounds as raw materials.The as-prepared powders were char
核酸(nucleic acid)是米歇尔(Miescher,F.)在1869年首先发现的,但直到1944年以后才开始认识到核酸与生物的遗传性的遗传和蛋白质的合成有关。核酸是高分子量的聚合物,由一定
英语作为一门特殊的学科,在九年制义务教育阶段学习已成为广大初中生的必考科目。学生在学习中由于存在能力、习惯等方面的差异,部分学生就逐步变成英语学科的学困生。再加上
12月24日国务院召开常务会议,确定搞活流通扩大消费和保持对外贸易稳定增长的14项政策措施。会议提出,对广东和长江三角洲地区与港澳地区、广西和云南
On December 24, the
[案情简介]rn季明为大型连锁超市Z集团销售组营业员,双方分别于2013年7月16日、2015年7月15日、2017年7月15日续订三份劳动合同,其中2017年7月15日续订的劳动合同为无固定期