Preparation of flexible conductive composite electrode film of PEDOT:PSS/Aramid nanofibers via vacuum-assisted filtration and acid post-treatment for efficient solid-state supercapacitor

佩多:嘘 材料科学 聚苯乙烯磺酸盐 复合数 电导率 纳米纤维 超级电容器 复合材料 化学工程 电容 电极 图层(电子) 化学 物理化学 工程类
作者
Guodong Liu,Ling Zheng,Yameng Sun,Meiyun Zhang,Chuanyin Xiong
出处
期刊:International Journal of Hydrogen Energy [Elsevier BV]
卷期号:47 (53): 22454-22468 被引量:15
标识
DOI:10.1016/j.ijhydene.2022.05.074
摘要

A highly conductive and flexible composite film of Poly (3,4-ethylenedioxythiophene):polystyrene sulfonate and aramid nanofiber (PEDOT:PSS/ANFs) is prepared by vacuum-assisted filtration and post-treated by acid. The composite displays excellent mechanical integrity under bending together with flexibility, properties being attributed to the strong attachment of PEDOT:PSS onto the surface of the ANFs via hydrogen bonding and the ANF structure, respectively. The conductivity of the prepared composite is progressively enhanced by the post-treatment using sulfuric acids (1 M H2SO4 and 1.5 M H2SO4), reaching 20–25 times higher than that of untreated film. This enhancement is traced to the removal of the insulating PSS group together with an analyzable change in crystallization of the PEDOT:PSS component. However, excessive use of acid treatment is seen to reduce the mechanical strength, and, thus, ultimate loss of conductivity after frequent bending (up to 1000 times), only having 59% conductivity retention with high concentration acid treatment (1.5 M H2SO4) compared to a high conductivity retention of 95% with 1.0 M H2SO4. Adopting the relatively weaker acid enables a balance to be reached between these crucial factors of electrical conductivity versus mechanical integrity. The prepared film of PEDOT: PSS/ANFs treated by acid as an electrode of supercapacitor shows good electrochemical performances, including good volumetric specific capacitance (83.5 F/cm3 with 1.0 M H2SO4 and 75 F/cm3 with 1.5 M H2SO4 at 0.5 A/cm−3), cycle stability and capacitance retention of 83.3% and 87.5% after 2000 cycles, respectively. Furthermore, a solid flexible supercapacitor is finally assembled by the post-treatment of relatively low concentration acid with 1.0 M H2SO4. The configured supercapacitor displays excellent volumetric energy density of 23.44 mW h/cm2 (power density of 399.95 mW/cm2) at a very wide operating potential window of 0–1.6 V and cycle stability. Therefore, it is quite feasible method to fabricate a highly conductive and flexible composite film using PEDOT:PSS and ANFs by vacuum filtration and acid post-treatment, which expects to be a promising flexible composite electrode material applied in the preparation of energy storage devices.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
1秒前
可爱的函函应助羽生采纳,获得10
1秒前
充电宝应助daxiong采纳,获得10
2秒前
jianglan完成签到,获得积分10
3秒前
nowfitness完成签到,获得积分10
3秒前
3秒前
3秒前
mqthhh发布了新的文献求助10
4秒前
4秒前
汕头凯奇发布了新的文献求助10
4秒前
小巧凡霜完成签到,获得积分20
4秒前
4秒前
5秒前
6秒前
6秒前
7秒前
7秒前
吴建文发布了新的文献求助10
8秒前
8秒前
WD发布了新的文献求助10
8秒前
家迎松完成签到,获得积分10
8秒前
9秒前
呆萌的延恶完成签到,获得积分20
9秒前
刘八一发布了新的文献求助20
10秒前
领导范儿应助kelly采纳,获得10
10秒前
11秒前
林林完成签到,获得积分10
11秒前
杨过和雕发布了新的文献求助10
12秒前
13秒前
至幸驳回了思源应助
13秒前
科学发布了新的文献求助10
13秒前
深情安青应助ShengzhangLiu采纳,获得10
14秒前
14秒前
16秒前
烟花应助科研通管家采纳,获得10
17秒前
研友_VZG7GZ应助科研通管家采纳,获得10
17秒前
yar应助科研通管家采纳,获得10
17秒前
17秒前
yar应助科研通管家采纳,获得10
17秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3975458
求助须知:如何正确求助?哪些是违规求助? 3519866
关于积分的说明 11199996
捐赠科研通 3256213
什么是DOI,文献DOI怎么找? 1798133
邀请新用户注册赠送积分活动 877386
科研通“疑难数据库(出版商)”最低求助积分说明 806305