Amine-functionalized graphene and its high discharge capacity for non-aqueous lithium–oxygen batteries

NA EUN BEEN (나은빈); Kim Jieun (김지은); Kim Minjae (김민재); Jang Seokhoon (장석훈); SONG MINGYU (송민규); Song KyongHwa (송경화); Sung-Hyeon Baeck (백성현); Sang Eun Shim (심상은)

doi:10.1007/s42823-019-00052-w

Amine-functionalized graphene and its high discharge capacity for non-aqueous lithium–oxygen batteries

Carbon Letters
Abbr : Carbon Lett.
2019, 29(5), pp.471~478
DOI : 10.1007/s42823-019-00052-w
Publisher : Korean Carbon Society
Research Area : Natural Science > Natural Science General > Other Natural Sciences General
Received : December 18, 2018
Accepted : May 22, 2019
Published : October 1, 2019

NA EUN BEEN ¹, Kim Jieun ¹, Kim Minjae ¹, Jang Seokhoon ¹, SONG MINGYU ¹, Song KyongHwa ², Sung-Hyeon Baeck ¹, Sang Eun Shim ¹

¹인하대학교
²현대자동차(주)

Accredited

ABSTRACT

Amine-functionalized graphene was synthesized via a one-step solvothermal method and used as a metal-free cathode for non-aqueous lithium–oxygen batteries. The material delivered an outstanding specific capacity of 19,789 mAh/g at a current density of 200 mA/g as well as better cycling stability than graphene without the amine functional group. This improvement was attributed to the electron-donating effect of the amine groups and appropriate mesopore volume, which can promote the penetration of oxygen, electrons, and lithium ions, as well as accommodate more discharge products, Li2O2 in Li–O2 batteries. Amine-functionalized graphene has an amine functional group on the carbon surface, which improves the electrical conductivity of carbon and provides electrochemical active sites for oxygen absorption reactions.

KEYWORDS

Lithium–oxygen battery Graphene Functionalization Mesoporosity Absorption

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Carbon Letters 2024 KCI Impact Factor : 0.95 KCI-WoS Impact Factor : 4.74

Amine-functionalized graphene and its high discharge capacity for non-aqueous lithium–oxygen batteries

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This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-28)

Total Citation Counts(KCI+WOS) (2) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (2) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2025-01-01)

* References for papers published after 2024 are currently being built.

Carbon Letters 2024 KCI Impact Factor : 0.95 KCI-WoS Impact Factor : 4.74

Amine-functionalized graphene and its high discharge capacity for non-aqueous lithium–oxygen batteries

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WoS Citation Counts (2) This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-28)

Total Citation Counts(KCI+WOS) (2) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (2) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2025-01-01)

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