Highly electrically conductive graphene papers via catalytic graphitization
作者机构：MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringKey Laboratory of Adsorption and Separation Materials&Technologies of Zhejiang ProvinceZhejiang University38 Zheda RoadHangzhou 310027China Beijing Institute of Space Mechanics&ElectricityHaidian DistrictBeijing Friendship Road 104Beijing 100094China Shanxi-Zheda Institute of Advanced Materials and Chemical EngineeringTaiyuan 030032China
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2022年第15卷第6期
页 面：4902-4908页
核心收录：
学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学]
基 金：supported by the National Natural Science Foundation of China(Nos.51803177,52090030,and 52106071) the Fundamental Research Funds for the Central Universities,Shanxi-Zheda Institute of New Materials and Chemical Engineering(No.2012SZ-FR004) Key Laboratory of Novel Adsorption and Separation Materials and Application Technology of Zhejiang Province(No.512301-I21502)
主 题：graphene papers catalytic graphitization boron catalyst catalytic kinetics
摘 要：The highly electrically conductive graphene papers prepared from graphene oxide have shown promising perspectives in flexible electronics,electromagnetic interference(EMI)shielding,and *** achieve high electrical conductivity,the graphene oxide precursor usually needs to be graphitized at extremely high temperature(~2,800°C),which severely increases the energy consumption and production ***,we report an efficient catalytic graphitization approach to fabricate highly conductive graphene papers at lower annealing *** graphene papers with boron catalyst annealed at 2,000°C show a high conductivity of~3,400 S·cm^(-1),about 47%higher than pure graphene *** catalyst facilitates the recovery of structural defects and improves the degree of graphitization by 80%.We further study the catalytic effect of boron on the graphitization behavior of graphene *** results show that the activation energy of the catalytic graphitization process is as low as 80.1 kJ·mol^(–1)in the temperature ranges *** effective strategy of catalytic graphitization should also be helpful in the fabrication of other kinds of highly conductive graphene macroscopic materials.
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