文献类型：期刊文献

英文题名：Green and Scalable Production of High-Quality Graphene by Solid Lithiation and Exfoliation

作者：Li, Guoqiang[1];Lin, Hao[1];Chen, Zhi[1];Wang, Chunli[1];Guo, Ruolin[1];Wang, Lei[1];Chen, Jiajun[1];Wang, Dianhong[1];Zhang, Liangzhu[1];Wu, Zhong- Shuai[2]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai, Peoples R China;[2]Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian, Peoples R China

年份：2026

外文期刊名：ADVANCED FUNCTIONAL MATERIALS

收录：;EI(收录号：20260419945802);WOS:【SCI-EXPANDED(收录号:WOS:001664621900001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (22209176, 22579053, 22125903, 22439003), Shanghai Leading Talent Program of Eastern Talent Plan (BJZH2025072), Shanghai Pujiang Talent plan project (23PJ1402000), Open Topic Fund of Hefei National Research Center for Physical Sciences at the Microscale (KF2025101), Open Topic Fund of Beijing National Laboratory for Condensed Matter Physics (2024BNLCMPKF017), Open Topic Fund of State Key Laboratory of Functional Crystals and Devices (SKLFCD202504SIC), Liaoning Revitalization Talents Program-Leading Talents (XLYC2402032), the Science and Technology Major Project of Liaoning Province (Grant Number.2024JH1/11700012), United Foundation for Dalian Institute of Chemical Physics, Chinese Academy of Sciences and Shenyang Institute of Automation, Chinese Academy of Sciences (DICP&SIA UN202501), Dalin Institute of Chemical Pyhsics, Chinese Academy of Sciences (DICPI202471), and the State Key Laboratory of Catalysis (No: 2024SKL-A-001).

语种：英文

外文关键词：graphene; nanosheets; solid lithiation and exfoliation

摘要：High-quality graphene prepared by eco-friendly green methods is critical for maximizing the performance of its applications. Here, we use solid lithiation and exfoliation to achieve the green and scalable production of high-quality graphene, avoiding the use of strong oxidants. This intercalation-exfoliation process yields high-quality few-layered graphene nanosheets with an average thickness of 1.1 nm and high crystallinity. The produced graphene nanosheets have a low defect density (I D/I G approximate to 0.11) and a high C/O ratio (similar to 24.6), enabling large-scale dispersion and production with a yield of 26.7%. Furthermore, our graphene nanosheets show good thermal stability, remaining stable without significant weight loss up to 550 degrees C and almost completely decomposing around 700 degrees C in thermogravimetric analysis. In addition, the as-exfoliated graphene nanosheets were used as a conductive substrate for an oxygen evolution reaction catalyst. Cobalt-loaded graphene exhibits excellent catalytic activity and long-term stability, with an overpotential of 0.34 V at 10 mA cm-2 and a Tafel slope of 99 mV dec-1. Our work thus provides an efficient, green route to high-quality graphene, unlocking its potential for next-generation applications in electronics, energy storage, and composite materials.