首页|Enhancing MXene-based supercapacitors:Role of synthesis and 3D architectures

Enhancing MXene-based supercapacitors:Role of synthesis and 3D architectures

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MXene has been the limelight for studies on electrode active materials,aiming at developing supercapac-itors with boosted energy density to meet the emerging influx of wearable and portable electronic devices.Despite its various desirable properties including intrinsic flexibility,high specific surface area,excellent metallic conductivity and unique abundance of surface functionalities,its full potential for elec-trochemical performance is hindered by the notorious restacking phenomenon of MXene nanosheets.Ascribed to its two-dimensional(2D)nature and surface functional groups,inevitable Van der Waals interactions drive the agglomeration of nanosheets,ultimately reducing the exposure of electrochemi-cally active sites to the electrolyte,as well as severely lengthening electrolyte ion transport pathways.As a result,energy and power density deteriorate,limiting the application versatility of MXene-based supercapacitors.Constructing 3D architectures using 2D nanosheets presents as a straightforward yet ingenious approach to mitigate the fatal flaws of MXene.However,the sheer number of distinct method-ologies reported,thus far,calls for a systematic review that unravels the rationale behind such 3D MXene structural designs.Herein,this review aims to serve this purpose while also scrutinizing the structure-property relationship to correlate such structural modifications to their ensuing electrochemical perfor-mance enhancements.Besides,the physicochemical properties of MXene play fundamental roles in determining the effective charge storage capabilities of 3D MXene-based electrodes.This largely depends on different MXene synthesis techniques and synthesis condition variations,hence,elucidated in this review as well.Lastly,the challenges and perspectives for achieving viable commercialization of MXene-based supercapacitor electrodes are highlighted.

MXene3D architecturesSynthesis designSupercapacitorEnergy storage

Wen Siong Poh、Wen Jie Yiang、Wee-Jun Ong、Pau Loke Show、Chuan Yi Foo

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School of Energy and Chemical Engineering,Xiamen University Malaysia,Selangor Darul Ehsan,Malaysia & College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,Fujian,China

Kelip-kelip! Center of Excellence for Light Enabling Technologies,Xiamen University Malaysia,Selangor Darul Ehsan 43900,Malaysia

Center of Excellence for NaNo Energy & Catalysis Technology(CONNECT),Xiamen University Malaysia,Selangor Darul Ehsan 43900,Malaysia

Department of Chemical Engineering,Khalifa University,Shakhbout Bin Sultan St-Zone 1,Abu Dhabi,United Arab Emirates

Zhejiang Provincial Key Laboratory for Subtropical Water Environment and Marine Biological Resources Protection,Wenzhou University,Wenzhou 325035,Zhejiang,China

Department of Chemical and Environmental Engineering,Faculty of Science and Engineering,University of Nottingham Malaysia,Jalan Broga,43500 Semenyih,Selangor Darul Ehsan,Malaysia

Department of Sustainable Engineering,Saveetha School of

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Fundamental Research Grant Scheme by Ministry of Higher Education MalaysiaFundamental Research Grant Scheme by Ministry of Higher Education MalaysiaXiamen University Malaysia Research Fund

FRGS/1/2021/STG04/XMU/02/1FRGS/1/2022/TK09/XMU/03/2XMUMRF/2023-C11/IENG/0056

2024

10.1016/j.jechem.2023.11.020

能源化学
中国科学院大连化学物理研究所 中国科学院成都有机化学研究所

能源化学

CSTPCDEI
影响因子：0.654
ISSN：2095-4956
年,卷(期)：2024.91(4)
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