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Updated: May 24, 2025

Scalable Solution-processed Fabrication Strategy for High-performance, Flexible, Transparent Electrodes with Embedded Metal Mesh
Published on: June 23, 2017
Unraveling and regulating electrode-electrolyte integration towards high-performing MoS2 loaded fiber shaped
Qingli Xu1, Qi Zhang2, Zhigen Yu3
1National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215127, China; Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore; Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, 2999 North Renmin Road, Shanghai 201620, China.
Abstract:
Molybdenum disulfide (MoS2) is touted as a highly promising material for fiber-shaped supercapacitors (FSCs) but limited by its low capacitance and unsatisfactory cycling stability. Here, we report a MoS2 deposited stainless steel wire (MoS2@SSW) that can be electrochemically intercalated with dual ions (Na+ and H+). A high capacitance of ∼1632.7 mF cm-2 at 0.4 mA cm-2 and high capacitance retention of 84.25 % after 10,000 cycles under sulfuric acid/sodium sulfate (H2SO4/Na2SO4) aqueous electrolyte is recorded for this system. This is mainly attributed to the pre-intercalation of H+ into MoS2 to form MoS-SH. This process redistributes the local charge regions on MoS2 surface and lowers the energy barrier for Na+ migration in MoS2 to facilitate the adsorption and intercalation of Na+. Notably, MoS2@SSW FSCs are integrated into three-dimensional space textiles as a proof-of-concept. This novel exploration of the nanointerface resulted by electrolyte engineering offers a feasible design paradigm for the development of high-performing FSCs.
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