In Situ Growth of Cu2S on Carbon Cloth Assisted by Tannic Acid for Supercapacitor Applications

IF 2.8 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Electronic Materials Pub Date : 2026-08-01 DOI:10.1007/s11664-026-13065-9

Haijun Wang, Yongquan Wang, Yongli Liang, Yuan Shen

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引用次数: 0

Abstract

Carbon cloth serves as a widely utilized flexible substrate for supercapacitor electrodes. This study presents a novel tannic acid-assisted strategy to in situ anchor cuprous sulfide (Cu₂S) onto carbon cloth, where tannic acid functions through triple mechanisms: chelating copper ions for stable anchoring, preventing Cu₂S detachment to maintain high loading capacity, and reducing charge transfer resistance. Comprehensive characterization confirms the uniform distribution and strong adhesion of Cu₂S nanoparticles on the tannic acid-treated carbon cloth. The resulting tannic acid-impregnated carbon cloth (TCC)-Cu₂S electrode achieves exceptional electrochemical performance with a high specific capacitance of 742.25 F g⁻¹ at 10 mV s⁻¹, an ultralow internal resistance of 0.5 Ω, and outstanding cycling stability retaining 90.47% capacitance after 10,000 charge–discharge cycles. This work establishes a simple, ecofriendly approach for fabricating high-performance flexible supercapacitors with significantly enhanced stability and conductivity.

Graphical Abstract

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单宁酸辅助下碳布上Cu2S的原位生长及其在超级电容器中的应用

碳布是一种广泛应用于超级电容器电极的柔性衬底。本研究提出了一种新的单宁酸辅助原位锚定硫化亚铜（Cu2S）到碳布上的策略，其中单宁酸通过三个机制发挥作用：螯合铜离子稳定锚定，防止Cu2S脱离以保持高负载能力，降低电荷转移阻力。综合表征证实了纳米Cu2S颗粒在单宁酸处理碳布上分布均匀，附着力强。所得的单宁酸浸渍碳布(TCC)-Cu2S电极具有优异的电化学性能，在10 mV s−1下具有742.25 F g−1的高比电容，0.5 Ω的超低内阻，以及出色的循环稳定性，在10,000次充放电循环后保持90.47%的电容。这项工作建立了一种简单、环保的方法来制造具有显著增强稳定性和导电性的高性能柔性超级电容器。图形抽象

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来源期刊

Journal of Electronic Materials 工程技术-材料科学：综合

CiteScore

4.10

自引率

4.80%

发文量

693

审稿时长

3.8 months

期刊介绍： The Journal of Electronic Materials (JEM) reports monthly on the science and technology of electronic materials, while examining new applications for semiconductors, magnetic alloys, dielectrics, nanoscale materials, and photonic materials. The journal welcomes articles on methods for preparing and evaluating the chemical, physical, electronic, and optical properties of these materials. Specific areas of interest are materials for state-of-the-art transistors, nanotechnology, electronic packaging, detectors, emitters, metallization, superconductivity, and energy applications. Review papers on current topics enable individuals in the field of electronics to keep abreast of activities in areas peripheral to their own. JEM also selects papers from conferences such as the Electronic Materials Conference, the U.S. Workshop on the Physics and Chemistry of II-VI Materials, and the International Conference on Thermoelectrics. It benefits both specialists and non-specialists in the electronic materials field. A journal of The Minerals, Metals & Materials Society.