9W收,不能再多了
9W收,不能再多了
元代两个青花瓷花瓶摆件
我在350的时候,买了10万的三金,现在还在,要不要换成现金
这个就是个坑
或者这里就不能左转,你左转
左转灯和左转道是匹配的,没左转灯,那一定没有左转道
你的全责,这个很清晰,没有左转道,那你应该是在直行道上,你左转,那你就是不按导向车道行驶,你直行绿灯不走,红灯走,不按交通信号灯行驶,侧面的车是绿灯,正常行程,对方无责
一次MMC的费用
卡宝车神、小猪佩奇、汪汪队、猪猪侠、消防员山姆
3年
@Gogokitty
赶紧离了,摆酒后再离,影响太大
Preparation and properties of flexible electrode materials from polyaniline-based composite conductive hydrogel
Abstract
Flexible supercapacitors have many advantages, such as fast charging speed, long cycle life, and higher energy density than conventional capacitors, making them a promising energy storage and energy supply device in flexible electronic devices. Flexible electrode materials are a key link and an important component of flexible supercapacitors. Polyvinyl alcohol (PVA) hydrogel has a three-dimensional network structure, which has strong flexibility and can maintain a large mechanical deformation; conductive polyaniline (PANI) has promising applications in electrode materials due to its high theoretical pseudocapacitance and reversible doping/dedoping mechanism; graphene oxide (GO) has attracted much attention because it is rich in a variety of oxygen-containing functional groups and can be easily compounded with other materials. In this paper, polyaniline was used as conductive active material, and PVA/PANI/GO hybrid hydrogel (PPG) was used as flexible substrate. A high-performance polyaniline-based composite conductive hydrogel PVA/PANI/GO-PANI (PPG-P) was prepared by a simple secondary induced assembly in situ polymerization method, and PPG-P was used as an electrode material to assemble a flexible supercapacitor PPG- P-SC.
A high-performance composite hydrogel PPG-P with a two-level conductive network was fabricated by a secondary induced assembly in situ polymerization method. First, a special primary conductive network with the function of inducing aniline self-assembly was constructed by using the intermolecular interaction force of PANI, PVA and GO and the cross-linking between PVA and GA, and the substrate hybrid hydrogel (PPG) was prepared; then, using PPG as the substrate, under the induction of the primary conductive network, aniline self-assembled on its backbone and polymerized in situ to construct the secondary conductive network of polyaniline. The primary conductive network and the PANI secondary conductive network interwove to form a PPG-P with a two-level conductive network. The process conditions of the preparation process were optimized, and the optimized conditions for the preparation of PPG hydrogels were as follows: the mass ratio of GO to PANI () was 1:4.5, the total mass of the two was 3 mg, the required amount of 15wt% PVA solution was 500 μL, and the amount of glutaraldehyde cross-linking agent was 250 μL, 1 vol%. The optimal conditions for aniline polymerization were as follows: the polymerization temperature was 0 °C, the molar ratio of monomer to oxidant was 1:1, and the optimal monomer concentration was 0.01 mol·L-1, and 70wt% phytic acid was used as doping acid, and its dosage was 300μL.
In this paper, the simple secondary induced assembly in situ polymerization method provided a new idea for the good combination of hydrogels and conductive polymers, which significantly improved the specific capacitance and cycling stability of conductive hydrogels. The electrode material (PPG-P) synthesized by this method with both high electrochemical performance and excellent mechanical properties has great development potential in the application of flexible energy storage devices.
正在写论文
等待有源人吧,新手司机吧
这个举证难,积累多点,等待一个有缘人一起修
遵纪守法,开车的,走路的都要遵守
行政复议几乎失败,这事我干过,上班时间还得请假去,因为是工作日受理,需等待,不能当场出结果
负债两百多万
东湖高新这个差距越来越小了
也就是为诈骗公司服务
4522的信用,没啥用
社会摇
这些都是大数据,你之前参加过几次,必中,一直没中的,一直没中
@sqm 克扣奖金,直接仲裁去
东北公司喜欢搞这一套,过年过节发年货啥的,一发一大堆,武汉这边公司感觉就一盒良品铺子或者一盒月饼,东北的公司就是至少三五钟不重样
金龙鱼大礼包、舟山海鲜大礼包、东北大米25Kg、过节费1000元、东北坚果特产大礼包、价值2000左右平板电脑一台
是人手一份
已经拿到了
东北公司,发了年货:金龙鱼大礼包、舟山海鲜大礼包、东北大米25Kg、过节费1000元、东北坚果特产大礼包、价值2000左右平板电脑一台+年会抽奖,最高奖好像是价值20W的某品牌电动汽车
为了便宜十多块,为啥不去中石油中石化呢,至少质量有保障
几个大的保险公司,几乎差不多
小的不出名的保险公司,扯皮拉筋的很多
已经发了,4个月工资
管好自家事,今年挣了几百万?
给老板拷贝资料,在老板的硬盘里发现了他和她老婆的运动视频
保时捷911
@tracymcladdy 多好,咸鱼上转手一个,直接零元购
今年去东北总部开年会,冰雪大礼包、大澡堂走起
大A渣
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