Creation of Nanosized Holes in Graphene Planes for Improvement of Rate Capability of Lithium-Ion Batteries | Sciact - CRIS-system of Boreskov Institute of Catalysis

Creation of Nanosized Holes in Graphene Planes for Improvement of Rate Capability of Lithium-Ion Batteries Full article

Journal

Nanotechnology
ISSN: 0957-4484 , E-ISSN: 1361-6528

Output data

Year: 2018, Volume: 29, Article number : 134001, Pages count : 9 DOI: 10.1088/1361-6528/aaa99f

Tags

holey graphene, graphite oxide, hot concentrated H2SO4 treatment, Li-ion battery

Authors

Bulusheva L.G. ^1,2 , Stolyarova S.G. ¹ , Chuvilin A.L. ^3,4 , Shubin Yu.V. ^1,2 , Asanov I.P. ^1,2 , Sorokin A.M. ⁵ , Mel’gunov M.S. ^2,5 , Zhang Su ⁶ , Dong Yue ⁶ , Chen Xiaohong ⁶ , Song Huaihe ⁶ , Okotrub A.V. ^1,2

Affiliations

1	Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
2	Novosibirsk State University, 2 Pirogova Str., 630090 Novosibirsk, Russia
3	CIC nanoGUNE Consolider, E-20018 San Sebastian, Spain
4	IKERBASQUE, Basque Foundation for Science, E-48013 Bilbao, Spain
5	Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences, 5 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
6	State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China

Funding (1)

Russian Science Foundation

16-13-00016

Holes with an average size of 2–5 nm have been created in graphene layers by heating of graphite oxide (GO) in concentrated sulfuric acid followed by annealing in an argon flow. The hot mineral acid acts simultaneously as a defunctionalizing and etching agent, removing a part of oxygen-containing groups and lattice carbon atoms from the layers. Annealing of the holey reduced GO at 800 °C–1000 °C causes a decrease of the content of residual oxygen and the interlayer spacing thus producing thin compact stacks from holey graphene layers. Electrochemical tests of the obtained materials in half-cells showed that the removal of oxygen and creation of basal holes lowers the capacity loss in the first cycle and facilitates intercalationdeintercalation of lithium ions. This was attributed to minimization of electrolyte decomposition reactions, easier desolvation of lithium ions near the hole boundaries and appearance of multiple entrances for the naked ions into graphene stacks.

Bulusheva L.G. , Stolyarova S.G. , Chuvilin A.L. , Shubin Y.V. , Asanov I.P. , Sorokin A.M. , Mel’gunov M.S. , Zhang S. , Dong Y. , Chen X. , Song H. , Okotrub A.V.
Creation of Nanosized Holes in Graphene Planes for Improvement of Rate Capability of Lithium-Ion Batteries
Nanotechnology. 2018. V.29. 134001 :1-9. DOI: 10.1088/1361-6528/aaa99f WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Nov 21, 2017
Accepted:	Jan 22, 2018
Published online:	Feb 12, 2018
Published print:	Apr 3, 2018

Web of science:	WOS:000424925300001
Scopus:	2-s2.0-85042278146
Elibrary:	35530978
Chemical Abstracts:	2018:2180499
Chemical Abstracts (print):	171:329226
OpenAlex:	W2793042124

DB	Citing
Web of science	42
Scopus	42
Elibrary	45
OpenAlex	44