A Facile Synthesis Strategy for N-Doped Graphene Quantum Dots Electrode Materials: Electrochemical Behaviors and Universal Energy Storage Mechanism.

Yongbo Wang, Shichao Dai, Jinghe Guo, Yanxiang Wang, Bo Tang

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Article in Materials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 authors.

Yongbo WangCollege of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.

Shichao DaiKey Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250061, China.

Jinghe GuoKey Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250061, China.

Yanxiang WangKey Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250061, China.ORCID 0000-0002-2692-8945

Bo TangCollege of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this paper, a simple hydrothermal approach is employed to prepare nitrogen-doped graphene quantum dots (N-GQDs) with controllable size and structural features, where citric acid and ethylenediamine served as the carbon and nitrogen precursors, respectively. The influence of hydrothermal temperature and duration on the structural features, surface chemistry, and electrochemical behavior of N-GQDs is systematically investigated. The capacitive behavior of N-GQD electrodes exhibits typical pseudocapacitive characteristics, primarily attributed to the surface functional groups. The NG-2 electrode (180 °C, 6 h) demonstrates a specific capacitance of 309.8 F g

Indexed as

ASCDFTelectrochemical testinghydrothermal reactionsN-GQDs

Identifiers

PMID41374215

DOI10.3390/ma18235373

PMCPMC12693605

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