Top-down strategy synthesis of fluorinated graphdiyne for lithium ion battery.

ABSTRACT: As a novel carbon allotrope, graphdiyne exhibits excellent electrochemical properties such as high specific capacities, outstanding rate performances, and long cycle lives. These properties are attributed to its sp- and sp²-hybridized bonding and a natural large pore structure. Doping with light elements is a facile way to improve the electrochemical performance of graphdiyne. Herein, we report the preparation of fluorine-doped graphdiyne by exposure to XeF₂ under a mild temperature. Compared to pristine graphdiyne, the capacities are doubled. We obtained reversible capacities of fluorinated graphdiyne up to 1080 mA h g^-1 after 600 cycles at a current density of 500 mA g^-1. At a higher current density of 1000 mA g^-1, it still retained

SUBMITTER: Kang H 

PROVIDER: S-EPMC9072409 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature