{"title":"Facile hydrothermal synthesis of high-performance GQD-CuO microflower composite anode for lithium-ion batteries","authors":"Jongmin Kim , Yongcheol Jo , Sangeun Cho","doi":"10.1016/j.matlet.2025.138254","DOIUrl":null,"url":null,"abstract":"<div><div>Copper oxide (CuO) has attracted substantial interest as a potential anode material for lithium-ion batteries (LIBs) because of its high theoretical capacity, non-toxicity, low cost, and abundance. However, the practical application of CuO as an anode is limited by challenges such as high charge-transfer resistance, low electrical conductivity, and limited cycle stability. An effective approach to addressing these issues involves incorporating carbon-based materials but this requires complex synthesis processes.</div><div>In this work, we propose an efficient synthesis method for the preparation of a graphene quantum dot (GQD)-CuO microflower (MF) composite film (G-CuO MF) via a one-pot hydrothermal process. The synergy between the high specific surface area of CuO MFs and the fast transportation of Li<sup>+</sup> ions provided by GQDs boosts Li<sup>+</sup> ion storage. The G-CuO MF composite anode exhibits high reversible capacity and long-term cycling stability.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"386 ","pages":"Article 138254"},"PeriodicalIF":2.7000,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Letters","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167577X25002836","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Copper oxide (CuO) has attracted substantial interest as a potential anode material for lithium-ion batteries (LIBs) because of its high theoretical capacity, non-toxicity, low cost, and abundance. However, the practical application of CuO as an anode is limited by challenges such as high charge-transfer resistance, low electrical conductivity, and limited cycle stability. An effective approach to addressing these issues involves incorporating carbon-based materials but this requires complex synthesis processes.
In this work, we propose an efficient synthesis method for the preparation of a graphene quantum dot (GQD)-CuO microflower (MF) composite film (G-CuO MF) via a one-pot hydrothermal process. The synergy between the high specific surface area of CuO MFs and the fast transportation of Li+ ions provided by GQDs boosts Li+ ion storage. The G-CuO MF composite anode exhibits high reversible capacity and long-term cycling stability.
期刊介绍：
Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials.
Contributions include, but are not limited to, a variety of topics such as:
• Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors
• Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart
• Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction
• Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots.
• Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing.
• Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic
• Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
