MXenes公司
石墨烯
各向同性
基面
材料科学
电阻率和电导率
极限抗拉强度
纳米技术
复合材料
化学
结晶学
物理
光学
工程类
电气工程
作者
Junqing Yang,Mingzhu Li,Shaoming Fang,Yanlei Wang,Hongyan He,Chenlu Wang,Z J Zhang,Bicheng Yuan,Lei Jiang,Ray H. Baughman,Qunfeng Cheng
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2024-02-16
卷期号:383 (6684): 771-777
被引量:3
标识
DOI:10.1126/science.adj3549
摘要
Graphene and two-dimensional transition metal carbides and/or nitrides (MXenes) are important materials for making flexible energy storage devices because of their electrical and mechanical properties. It remains a challenge to assemble nanoplatelets of these materials at room temperature into in-plane isotropic, free-standing sheets. Using nanoconfined water-induced basal-plane alignment and covalent and π-π interplatelet bridging, we fabricated Ti 3 C 2 T x MXene-bridged graphene sheets at room temperature with isotropic in-plane tensile strength of 1.87 gigapascals and moduli of 98.7 gigapascals. The in-plane room temperature electrical conductivity reached 1423 siemens per centimeter, and volumetric specific capacity reached 828 coulombs per cubic centimeter. This nanoconfined water-induced alignment likely provides an important approach for making other aligned macroscopic assemblies of two-dimensional nanoplatelets.
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