Boosting Li/Na storage performance of graphite by defect engineering

Regulating material properties by accurately designing its structure has always been a research hotspot. In this study, by a simple and eco-friendly mechanical ball milling, we could successfully engineer the defect degree of the graphite. Moreover, according to the accurate deconstruction of the st...

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Detalles Bibliográficos
Autores principales: Ou, Mingyang, Sun, Shixiong, Liu, Yi, Xu, Yue, Chen, Chang, Hu, Pei, Fang, Chun, Li, Qing, Han, Jiantao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9034195/
https://www.ncbi.nlm.nih.gov/pubmed/35480838
http://dx.doi.org/10.1039/d1ra03102c
Descripción
Sumario:Regulating material properties by accurately designing its structure has always been a research hotspot. In this study, by a simple and eco-friendly mechanical ball milling, we could successfully engineer the defect degree of the graphite. Moreover, according to the accurate deconstruction of the structure by atomic pair distribution function analysis (PDF) and X-ray absorption near-edge structure analysis (XANES), those structural defects of the ball-milled graphite (BMG) mainly exist as carbon atom vacancies within the graphene structure, which are beneficial to enhance the lithium and sodium storage performance of BMG. Therefore, BMG-30 h exhibits superior lithium and sodium storage performance.

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