Journal
CARBOHYDRATE POLYMERS
Volume 297, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2022.120039
Keywords
Supercapacitor; Nanocellulose; Aerogel; Electrodes; Energy storage
Categories
Funding
- Science and Engineering Research Board (SERB, DST, Govt. of India)
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This review summarizes the research progress on developing nanocellulose (NC)-based aerogels for supercapacitor applications, including NC extraction, aerogel processing, correlation between electrochemical performance and aerogel structures of NC-based electrodes, challenges, and future prospects for NC-based aerogels.
Recently, in response to the challenges related to energy development and environmental issues, extensive efforts are being made towards the development of supercapacitors based on green and sustainable resources. Aerogel electrodes offer high energy/power autonomy, fast charge-discharge rates, and long charge/discharge cycles over composite film electrodes due to their unique structure, ultra-lightness, high porosity, and large specific surface area. Nanocellulose (NC), a sustainable nanomaterial, has gained popularity as a supercapacitor electrode material owing to its remarkable properties such as biodegradability, tunable surface chemistry, ability to develop 3D aerogel structures, etc. This comprehensive review summarizes the research progress on developing NC-based aerogels for supercapacitor applications. First, the fundamentals of NC extraction from cellulose sources and aerogel processing routes are discussed. An attempt is made to correlate the electrochemical per-formance of NC-based electrodes with their aerogel structures. Finally, challenges and future prospects for the advancement of NC-based aerogels are addressed.
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