标志508,在武汉配件啥多的很,售后路边店就能搞
标志508,在武汉配件啥多的很,售后路边店就能搞
标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408标致408
企业微信提示消息已读
这叫有缘人,等的就是这种有缘人
黄龙山公园已经发现5颗桑树,还摘了不少桑果,都成熟啦,味道和小时候一样
@brightsun 可以,统筹报销90,个人账户支付90
C13呼气检查,三医院180,医保统筹报销一半,开了四联药,可以先开三天的,看自己适不适应,这种药刺激性,有的人胃受不了,若适应的了,后面的直接去外面药店买,便宜,外面药店700多药,报销后只付了120
这很有必要治疗,胃炎胃癌的开始,目前正在吃药
汽车的三者险没买吗?
省妇幼的医生很黑的,之前我的娃检查说心脏有个心房未完全闭合,说要手术啥的,说的特别吓人,最后去亚心去看,医生说现在90% 的小孩都是这样,说现在检查设备太精细了,没必要担心不用手术,不用管,现在娃都可以打酱油了,啥事都没有
武汉港迪电气有限公司
可以在财报上查到
18年成立 50多
19年70多
20年130多
21年130多
22年180多
23年300多人
23年年底被东莞某上市公司收购
估值20亿元
B站啊,上传后分享
@wangscript 不会传染
不能惯着这些鱼
@atongmu
很难
光谷实验预计要分拆了
@leenyZ 也是没有资格的
划重点!!划重点
义务教育阶段择校生不享受分配生资格
划重点!!划重点!!
义务教育阶段择校生不享受分配生资格
学区房的概念即将退出历史舞台
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
过早客微信公众号:guozaoke • 过早客新浪微博:@过早客 • 广告投放合作微信:fullygroup50 鄂ICP备2021016276号-2 • 鄂公网安备42018502001446号