Oxidating Fresh Porous Graphene Networks toward Ultra-Large Graphene Oxide with Electrical Conductivity
2022-08-05
发表期刊ADVANCED FUNCTIONAL MATERIALS (IF:18.5[JCR-2023],19.6[5-Year])
ISSN1616-301X
卷号32期号:42页码:2202697
发表状态已发表
DOI10.1002/adfm.202202697
摘要

Ultra-large graphene oxide (ULGO) is one of the most important graphene derivates because of its processability in constructing various macrostruc-tures with unique properties. However, existing oxidation–exfoliation tech-nologies are limited in the available size range, structure controllability, and preparation efficiency of ULGO by the slow oxidant diffusion among graphite interlayers. Herein, a highly efficient strategy to fabricate ULGO featuring the oxidation of porous graphene networks freshly derived from electrochemical delamination, which highlights the significance of not only creation but also keeping of the fast diffusion channels for oxidant, is proposed. Consuming only 40 min and ultralow oxidant dosage (1 wt equiv.), this economical oxida-tion realizes high-yield preparation (≈99.5%) of ULGO with record-large average size (188.3 μm) and unusual low-defect structure. Unlike previous reports, free-standing films assembled from the as-prepared ULGO exhibit an unexpected electrical conductivity (305.3 S m−1) alongside record-breaking mechanical properties (21.2 GPa in Young’s modulus, 392.1 MPa in tensile strength). Also, the advantage of ULGO in constructing commercially desir-able thick graphene films with high thermal conductivity is demonstrated (≈100 μm, 1576.1±26.7 W m−1 K−1). This new strategy based on new findings in mechanism provides a highly efficient route to enlarge lateral size and expand physical properties of graphene oxide.

关键词crystal structures efficient oxidations large sizes mechanical properties thermal conductivities
学科门类工学
URL查看原文
收录类别SCI
语种英语
引用统计
正在获取...
文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/346053
专题个人在本单位外知识产出
共同第一作者Xiaoming Xie
通讯作者Peng He; Guqiao Ding
作者单位
1.State Key Laboratory of Functional Materials for InformaticsCenter for Excellence in Superconducting ElectronicsShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences865 Changning Road, Shanghai 200050, P. R. China
2.College of Materials Science and Opto-Electronic TechnologyUniversity of Chinese Academy of SciencesBeijing 100049, P. R. China
推荐引用方式
GB/T 7714
Penglei Zhang,Peng He,Yifeng Zhao,et al. Oxidating Fresh Porous Graphene Networks toward Ultra-Large Graphene Oxide with Electrical Conductivity[J]. ADVANCED FUNCTIONAL MATERIALS,2022,32(42):2202697.
APA Penglei Zhang.,Peng He.,Yifeng Zhao.,Siwei Yang.,Qingkai Yu.,...&Guqiao Ding.(2022).Oxidating Fresh Porous Graphene Networks toward Ultra-Large Graphene Oxide with Electrical Conductivity.ADVANCED FUNCTIONAL MATERIALS,32(42),2202697.
MLA Penglei Zhang,et al."Oxidating Fresh Porous Graphene Networks toward Ultra-Large Graphene Oxide with Electrical Conductivity".ADVANCED FUNCTIONAL MATERIALS 32.42(2022):2202697.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
个性服务
查看访问统计
谷歌学术
谷歌学术中相似的文章
[Penglei Zhang]的文章
[Peng He]的文章
[Yifeng Zhao]的文章
百度学术
百度学术中相似的文章
[Penglei Zhang]的文章
[Peng He]的文章
[Yifeng Zhao]的文章
必应学术
必应学术中相似的文章
[Penglei Zhang]的文章
[Peng He]的文章
[Yifeng Zhao]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。