A facile synthesis of hierarchically porous graphene for high-performance lithium storage

Feng, Chuanqi; Lü, Yi; Liu, Yixuan; Yang, Xiao‐Yu

doi:10.1039/d2nj02047e

Cited by 4 publications

(2 citation statements)

References 38 publications

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“…[15,16] Graphene-based composites have received attention as a component of electrochemical energy storage devices to achieve superior electrochemical performances by combining the merits of graphene and other electrochemical materials. [17,18,19,20] Owing to their large specific surface area, abundant surface functional groups, high Dr. Le Li received his Ph.D. in Electronic Science and Technology from Xi'an Jiaotong University in 2018.…”

Section: Introductionmentioning

confidence: 99%

“…Since the first exfoliation phenomenon in 2004, graphene has been widely studied in many fields due to its attractive physicochemical properties [15,16] . Graphene‐based composites have received attention as a component of electrochemical energy storage devices to achieve superior electrochemical performances by combining the merits of graphene and other electrochemical materials [17,18,19,20] . Owing to their large specific surface area, abundant surface functional groups, high electrical conductivity, and high charge mobility, graphene‐based materials show promise in solving the difficult problems in ZIBs [21–24] .…”

Section: Introductionmentioning

confidence: 99%

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Recent Advances in Graphene‐Based Materials for Zinc‐Ion Batteries

Li,

Yue,

Jia

et al. 2024

The Chemical Record

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Zinc‐ion batteries (ZIBs) are a promising alternative for large‐scale energy storage due to their advantages of environmental protection, low cost, and intrinsic safety. However, the utilization of their full potential is still hindered by the sluggish electrode reaction kinetics, poor structural stability, severe Zn dendrite growth, and narrow electrochemical stability window of the whole battery. Graphene‐based materials with excellent physicochemical properties hold great promise for addressing the above challenges foe ZIBs. In this review, the energy storage mechanisms and challenges faced by ZIBs are first discussed. Key issues and recent progress in design strategies for graphene‐based materials in optimizing the electrochemical performance of ZIBs (anode, cathode, electrolyte, separator and current collector) are then discussed. Finally, some potential challenges and future research directions of graphene‐based materials in high‐performance ZIBs are proposed for practical applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recent Advances in Graphene‐Based Materials for Zinc‐Ion Batteries

Li,

Yue,

Jia

et al. 2024

The Chemical Record

View full text Add to dashboard Cite

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Rapid Preparation of Porous Graphene by Microwave‐Assisted Chemical Etching for Electrochemical Energy Storage

Yang,

Liu,

Lin

et al. 2024

ChemistrySelect

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Porous graphene materials possess a larger specific surface area and a more abundant presence of active sites compared to non‐porous graphene materials, resulting in enhanced electrochemical properties. The presence of in‐plane nanopores facilitates the transmission of ions and mass, further expanding the potential applications of graphene materials in electrochemical energy storage and various other fields. In this study, a rapid synthesis of porous graphene was achieved through a microwave‐assisted chemical etching method. With the aid of microwave radiation, the etchant efficiently reduced the oxygen‐containing groups within the graphene structure, consequently generating nanopores with an approximate diameter of 10 nm. By optimizing the microwave treatment parameters, including pretreatment time, etching time, amount of etchant H2O2, and microwave power, the area percentage of nanopores in the graphene material was controlled to enhance its electrochemical properties. Porous graphene materials exhibited excellent specific capacitance and rate capability, making it a promising material for capacitor applications. Moreover, the lower internal resistance of porous graphene, compared to non‐porous graphene, demonstrated the significant role of nanopores in enhancing the electrochemical performance. These findings highlight the potential of porous graphene for use in electrochemical energy storage.

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