第一作者：Jianghua Zhang

通讯作者：Hongbin Sun, Qionglin Liang, Ting Sun, Yang Yang

合写作者：Yongjian Ai, Jiajing Wu, Daile Zhang, Yun Wang, Zhongmin Feng

发表刊物：Advanced Functional Materials

期号：9

卷号：30

影响因子：18.5

DOI码：10.1002/adfm.201904645

所属单位：Department of Chemistry, Northeastern University

教研室：物理化学

刊物所在地：ENGLAND

摘要：Effectively preventing graphene stacking and maintaining ultrathin layers remains a significant research effort for graphene preparation and applications. In this paper, a novel synthetic strategy based on catalyst migration on the surface of a salt template to control the growth of graphene is used to prepare 3D edge-curled graphene (3D ECG). Under the synergistic effect of the steric hindrance and the migration of the Ni catalyst, 3D ECG forms a special structure in which the intermediate portion is flat and the edge is curled. The resultant unique structure not only effectively prevents the close stacking and aggregation of graphene, but also significantly improves its lithium storage performance. As an anode for lithium ion batteries, the reversible specific capacity can reach 907.5 and 347.8 mAh g(-1) at the current density of 0.05 and 5.0 A g(-1). Even after 1000 cycles, the specific capacity of 3D ECG can still be maintained at 605.2 mAh g(-1) at a current density of 0.5 A g(-1), demonstrating excellent rate performance and cycle performance. This new synthesis strategy and unique edge-curled structure can be used to guide more design of 3D graphene materials for further functional applications.

关键字：edge-curled structure, graphene, lithium ion batteries, Ni catalysis, stacking and agglomeration

论文编号：WOS:000504704300001

学科门类：理学

一级学科：化学

页面范围：2306598

ISSN号：1616-301X

是否译文：否