双功能
电极
材料科学
镍
兴奋剂
锌
可穿戴计算机
水溶液
离子
可穿戴技术
纳米技术
无机化学
光电子学
冶金
化学
计算机科学
催化作用
嵌入式系统
生物化学
有机化学
物理化学
作者
Jiajun Wu,Jingxin Zhou,Jiahao Guo,Muhuo Yu,Yuan Xie,Lei Ying,Bizhang Zheng,Zhanyong Wang,Qichong Zhang
出处
期刊:Carbon
[Elsevier]
日期:2024-03-01
卷期号:: 119009-119009
标识
DOI:10.1016/j.carbon.2024.119009
摘要
Vanadium pentoxide (V2O5), due to its distinctive open-framework construction and significant theoretical capacity, has widespread applications in the rapid development of aqueous zinc-ion batteries (AZIBs) and pressure sensors. However, V2O5 exhibits rapid capacity degradation and poor cycling stability due to its low electrical conductivity and ion diffusion rate, limiting its vast application prospects. Therefore, the self-supporting V2O5 nanoarrays employing a Ni doping strategy on flexible carbon substrates act as an AZIBs cathode material (Ni–V2O5@CNTF), which possesses an enlarged interlayer space and high ion conductivity to provide a stable crystal structure for fast and reversible Zn2+ insertion/extraction. More notably, the assembled Zn/Ni–V2O5@CNTF battery achieves a high capacity of 398.85 mAh cm−3 at 0.1 A cm−3, superior rate performance and cycling stability for 2000 cycles. In addition, the V2O5 nanoarrays grown on carbon cloth serving as the functional electrode material (Ni–V2O5@CC) are applied in a flexible resistive pressure sensor, exhibiting a high sensitivity of 0.8 kPa−1 from 0 to 5.0 kPa and stable sensing capabilities from 0 to 25 kPa. Furthermore, extensive applications are investigated in monitoring human activities and anti-intrusion pre-alarm systems. This work demonstrates a dual-functional fabric electrode based on Ni–V2O5, offering new guidelines for the next generation of multifunctional flexible electronic products.
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