亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

Polyaniline intercalation induced great enhancement of electrochemical properties in ammonium vanadate nanosheets as an advanced cathode for high-performance aqueous zinc-ion batteries

聚苯胺 插层(化学) 电化学 阴极 材料科学 水溶液 化学工程 钒酸盐 无机化学 化学 冶金 电极 聚合物 有机化学 复合材料 聚合 物理化学 工程类
作者
Yuanxia Li,Yu Liu,Ji Chen,Qiaoji Zheng,Yu Huo,Fengyu Xie,Dunmin Lin
出处
期刊:Chemical Engineering Journal [Elsevier BV]
卷期号:448: 137681-137681 被引量:51
标识
DOI:10.1016/j.cej.2022.137681
摘要

• The P-NVO cathode delivers a high reversible capacity of 300 mAh g −1 at 10 A g −1 . • The P-NVO cathode shows an excellent energy density of 158 Wh kg −1 . • The role of the Zn 3 (OH) 2 V 2 O 7 ·2H 2 O in the Zn 2+ storage mechanism is revealed. • The morphology transformation of the P-NVO is studied. Layer-structured ammonium vanadate (NH 4 V 3 O 8 ·0.5H 2 O) has attracted wide attention as one of the most promising cathode candidates for rechargeable aqueous zinc-ion batteries (AZIBs) due to its tunable two-dimensional (2D) layered structures; however, its sluggish Zn 2+ diffusion dynamics and poor cycling stability inhibit the electrochemical properties of the material. Herein, we design the organic (polyaniline) -inorganic (ammonium vanadate) hybrid cathodes with expanded interlayer spacing by intercalating polyaniline into the interlayer of NH 4 V 3 O 8 ·0.5H 2 O. Importantly, the interlayer distance of NH 4 V 3 O 8 ∙0.5H 2 O is remarkably enlarged form 7.9 Å to 10.8 Å by polyaniline intercalating, offering fast channels for Zn 2+ diffusion. Moreover, the polyaniline-intercalated hybrid material presents weak crystallinity and ultra-thin nanosheets morphology and owns high content of oxygen defect, which endows it with more Zn 2+ active sites to improve the electrochemical kinetics of the electrode material. Benefitting from the above, the obtained organic–inorganic hybrid electrode exhibits excellent electrochemical properties, giving a high initial capacity of 397.5 mAh g −1 at 1 A g −1 and an excellent cycling stability of 300 mAh g −1 at current density of 10 A g −1 with the capacity retention of 95% over 1000 cycles. This study proposes an important guidance for the design of advanced cathodes of aqueous rechargeable zinc-ion batteries by tailoring the morphology and crystal characteristics of the materials.
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
小江完成签到,获得积分10
1秒前
gszy1975完成签到,获得积分10
5秒前
24秒前
26秒前
Chaos完成签到 ,获得积分10
31秒前
光合作用完成签到,获得积分10
34秒前
39秒前
53秒前
1分钟前
八个猪宝贝完成签到,获得积分10
1分钟前
量子星尘发布了新的文献求助10
1分钟前
lameliu完成签到,获得积分10
1分钟前
1分钟前
香蕉觅云应助Viiigo采纳,获得10
2分钟前
2分钟前
量子星尘发布了新的文献求助10
2分钟前
2分钟前
老石完成签到 ,获得积分10
3分钟前
chichqq发布了新的文献求助30
3分钟前
3分钟前
evil发布了新的文献求助10
3分钟前
3分钟前
珂珂完成签到 ,获得积分10
3分钟前
小蘑菇应助evil采纳,获得10
3分钟前
4分钟前
量子星尘发布了新的文献求助10
4分钟前
5分钟前
5分钟前
Dandelion完成签到,获得积分10
5分钟前
5分钟前
完美世界应助nsc采纳,获得10
5分钟前
量子星尘发布了新的文献求助10
5分钟前
所所应助nsc采纳,获得10
5分钟前
小蘑菇应助nsc采纳,获得50
5分钟前
Ava应助nsc采纳,获得10
5分钟前
隐形曼青应助nsc采纳,获得10
5分钟前
慕青应助nsc采纳,获得10
5分钟前
脑洞疼应助nsc采纳,获得10
5分钟前
善学以致用应助nsc采纳,获得10
5分钟前
ding应助nsc采纳,获得30
5分钟前
高分求助中
The Mother of All Tableaux Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 2400
Ophthalmic Equipment Market by Devices(surgical: vitreorentinal,IOLs,OVDs,contact lens,RGP lens,backflush,diagnostic&monitoring:OCT,actorefractor,keratometer,tonometer,ophthalmoscpe,OVD), End User,Buying Criteria-Global Forecast to2029 2000
Optimal Transport: A Comprehensive Introduction to Modeling, Analysis, Simulation, Applications 800
Official Methods of Analysis of AOAC INTERNATIONAL 600
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 588
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
T/CIET 1202-2025 可吸收再生氧化纤维素止血材料 500
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 3957061
求助须知:如何正确求助?哪些是违规求助? 3503084
关于积分的说明 11111255
捐赠科研通 3234121
什么是DOI,文献DOI怎么找? 1787751
邀请新用户注册赠送积分活动 870762
科研通“疑难数据库(出版商)”最低求助积分说明 802264