Journal ArticleDOI
Wearable High-Performance Supercapacitors Based on Silver-Sputtered Textiles with FeCo2S4–NiCo2S4 Composite Nanotube-Built Multitripod Architectures as Advanced Flexible Electrodes
TLDR
In this article, a novel flexible electrode with nanotube-built multitripod architectures of ternary metal sulfides' composites (FeCo2S4−NiCo 2S4) on a silver-sputtered textile cloth is presented.Abstract:
To achieve high-performance wearable supercapacitors (SCs), a new class of flexible electrodes with favorable architectures allowing large porosity, high conductivity, and good mechanical stability is strongly needed. Here, this study reports the rational design and fabrication of a novel flexible electrode with nanotube-built multitripod architectures of ternary metal sulfides' composites (FeCo2S4–NiCo2S4) on a silver-sputtered textile cloth. Silver sputtering is applicable to almost all kinds of textiles, and S2− concentration is optimized during sulfidation process to achieve such architectures and also a complete sulfidation assuring high conductivity. New insights into concentration-dependent sulfidation mechanism are proposed. The additive-free FeCo2S4–NiCo2S4 electrode shows a high specific capacitance of 1519 F g−1 at 5 mA cm−2 and superior rate capability (85.1% capacitance retention at 40 mA cm−2). All-solid-state SCs employing these advanced electrodes deliver high energy density of 46 W h kg−1 at 1070 W kg−1 as well as achieve remarkable cycling stability retaining 92% of initial capacitance after 3000 cycles at 10 mA cm−2, and outstanding reliability with no capacitance degradation under large twisting. These are attributed to the components' synergy assuring rich redox reactions, high conductivity as well as highly porous but robust architectures. An almost linear increase in capacitance with devices' area indicates possibility to meet various energy output requirements. This work provides a general, low-cost route to wearable power sources.read more
Citations
More filters
Journal ArticleDOI
Novel Rugby-Ball-like FeCoCuS2 Triple-Shelled Hollow Nanostructures with Enhanced Performance for Supercapattery
Maryam Ghoreishi Amiri,Seyyed Ebrahim Moosavifard,Saied Saeed Hosseiny Davarani,Mojtaba Shamsipur +3 more
Journal ArticleDOI
High-performance aqueous asymmetric supercapacitors based on the cathode of one-step electrodeposited cracked bark-shaped nickel manganese sulfides on activated carbon cloth
Emin Adil,Wenlu Xie,Xiao Long,Xiao Wang,Xiaoqiang Song,Yue Chen,Yujun Fu,Junshuai Li,Yali Li,Deyan He +9 more
TL;DR: In this article, a self-standing supercapacitor electrode of mixed nickel manganese sulfides (NMSs) with a cracked-bark shape grown by one-step electrochemical deposition on activated carbon cloth (ACC) was reported.
Journal ArticleDOI
Toilless selenylation route to enhance the supercapacitor conductive performance of nanoflower-like NiAl-layered double hydroxide
TL;DR: In this article , a new Se-NiAl-LDHs electrode material was successfully synthesized by a pre-synthetic solvothermal reaction and selenization modification procedure.
Journal ArticleDOI
Silver-loaded carbon sphere-in-rod 3D nano-architectures as electrode material for supercapacitors
TL;DR: In this paper, a silver-loaded carbon sphere-in-rod 3D architectures were synthesized by in situ hydrothermal carbonization of sucrose and silver nitrate.
Journal ArticleDOI
Effect of Fe doping on Co-S/carbon cloth as bifunctional electrocatalyst for enhanced water splitting
TL;DR: In this article , the Fe-Co-S nanoflakes grown on the carbon cloth (Fe-CoS/CC) were fabricated by hydrothermal method and subsequent annealing treatment to enhance the crystallinity.
References
More filters
Journal ArticleDOI
Flexible Energy-Storage Devices: Design Consideration and Recent Progress
TL;DR: This review describes the most recent advances in flexible energy-storage devices, including flexible lithium-ion batteries and flexible supercapacitors, based on carbon materials and a number of composites and flexible micro-supercapacitor.
Journal ArticleDOI
Flexible solid-state supercapacitors: design, fabrication and applications
TL;DR: Flexible solid-state supercapacitors (SCs) have attracted increasing interest because they can provide substantially higher specific/volumetric energy density compared to conventional capacitors.
Journal ArticleDOI
A Cost-Effective Supercapacitor Material of Ultrahigh Specific Capacitances: Spinel Nickel Cobaltite Aerogels from an Epoxide-Driven Sol–Gel Process
TL;DR: This work reported the first successful preparation of nickel cobaltite aerogels with the epoxide-driven sol–gel process, which showed an extremely high-specific capacitance of 1400 F g under a mass loading of 0.4 mg cm 2 at a sweep rate of 25mV s.
Journal ArticleDOI
Formation of nickel cobalt sulfide ball-in-ball hollow spheres with enhanced electrochemical pseudocapacitive properties
TL;DR: An anion exchange method is reported to synthesize a complex ternary metal sulfides hollow structure, namely nickel cobalt sulfide ball-in-ball hollow spheres that show long-term cycling performance and potential application in high-performance electrochemical capacitors.
Journal ArticleDOI
Design Hierarchical Electrodes with Highly Conductive NiCo2S4 Nanotube Arrays Grown on Carbon Fiber Paper for High-Performance Pseudocapacitors
TL;DR: The development of highly conductive NiCo2S4 single crystalline nanotube arrays grown on a flexible carbon fiber paper (CFP), which can serve not only as a good pseudocapacitive material but also as a three-dimensional conductive scaffold for loading additional electroactive materials.