Key issues facing electrospun carbon nanofibers in energy applications: on-going approaches and challenges

Nie, Guangdi; Zhao, Xinwei; Luan, Yaxue; Jiang, Jiangmin; Kou, Zongkui; Wang, John

doi:10.1039/d0nr03425h

Cited by 78 publications

(60 citation statements)

References 243 publications

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“…[6][7][8][9] It is generally accepted that in an acid electrolyte, electric double layer capacitance (EDLC) results primarily from the adsorption of hydrogen ions on the surface of the electrode and partially as a result of redox reaction with nitrogen and other impurity species. [10][11][12][13] In alkaline electrolytes, EDLC results from the adsorption/desorption of electrolyte ions at the surface of the electrode accompanied by additional pseudo-capacitance due to the presence of functional groups. [14][15][16] Importantly, in neutral electrolytes, carbon materials can be used as positive and negative electrodes simultaneously, and many symmetric supercapacitor technologies are based on this idea.…”

Section: Introductionmentioning

confidence: 99%

Boosting the electrochemical properties of carbon materials as bipolar electrodes by introducing oxygen functional groups

et al. 2020

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Section: Introductionmentioning

confidence: 99%

Boosting the electrochemical properties of carbon materials as bipolar electrodes by introducing oxygen functional groups

et al. 2020

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“…For each of the morphologies of hollow nanospheres, nanopolyhedrons, and nanofibers, a proper tuning in the key structural features by processing controls, NHCMs show great potential as the electrode materials in rechargeable batteries, including LIBs, SIBs, PIBs, and LSBs. In addition to being electrodes by themselves, NHCMs also act as an efficient supporting substrate for other active materials, improving the loading, overall electronic conductivity, and mechanical stability, leading to faster reaction kinetics, better performance, and long cycle ability [ 207 ]. Although considerable progress has been made so far, in almost all aspects, attempted by various strategies as described in this overview, there are several unsolved issues and challenges, which should be addressed further, especially for developing large-scale production at low cost, and application in energy storage.…”

Section: Discussionmentioning

confidence: 99%

Nanohollow Carbon for Rechargeable Batteries: Ongoing Progresses and Challenges

Jiang

Nie

et al. 2020

Nano-Micro Lett.

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Among the various morphologies of carbon-based materials, hollow carbon nanostructures are of particular interest for energy storage. They have been widely investigated as electrode materials in different types of rechargeable batteries, owing to their high surface areas in association with the high surface-to-volume ratios, controllable pores and pore size distribution, high electrical conductivity, and excellent chemical and mechanical stability, which are beneficial for providing active sites, accelerating electrons/ions transfer, interacting with electrolytes, and giving rise to high specific capacity, rate capability, cycling ability, and overall electrochemical performance. In this overview, we look into the ongoing progresses that are being made with the nanohollow carbon materials, including nanospheres, nanopolyhedrons, and nanofibers, in relation to their applications in the main types of rechargeable batteries. The design and synthesis strategies for them and their electrochemical performance in rechargeable batteries, including lithium-ion batteries, sodium-ion batteries, potassium-ion batteries, and lithium–sulfur batteries are comprehensively reviewed and discussed, together with the challenges being faced and perspectives for them.

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“…Owing to the high conductivity, good flexibility, and superior functionality, 1D carbon materials, such as carbon nanofibers (CNF) and carbon nanotubes (CNTs), have been widely used as individual electrode materials or conductive substrates for supercapacitors [ 50 , 51 ]. In the process, the TMCs are commonly in situ introduced into the surface of 1D CNTs through physical or chemical methods.…”

Section: Conductive Carbon Skeletonsmentioning

confidence: 99%

Recent Developments of Transition Metal Compounds-Carbon Hybrid Electrodes for High Energy/Power Supercapacitors

et al. 2021

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Due to their rapid power delivery, fast charging, and long cycle life, supercapacitors have become an important energy storage technology recently. However, to meet the continuously increasing demands in the fields of portable electronics, transportation, and future robotic technologies, supercapacitors with higher energy densities without sacrificing high power densities and cycle stabilities are still challenged. Transition metal compounds (TMCs) possessing high theoretical capacitance are always used as electrode materials to improve the energy densities of supercapacitors. However, the power densities and cycle lives of such TMCs-based electrodes are still inferior due to their low intrinsic conductivity and large volume expansion during the charge/discharge process, which greatly impede their large-scale applications. Most recently, the ideal integrating of TMCs and conductive carbon skeletons is considered as an effective solution to solve the above challenges. Herein, we summarize the recent developments of TMCs/carbon hybrid electrodes which exhibit both high energy/power densities from the aspects of structural design strategies, including conductive carbon skeleton, interface engineering, and electronic structure. Furthermore, the remaining challenges and future perspectives are also highlighted so as to provide strategies for the high energy/power TMCs/carbon-based supercapacitors.

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Key issues facing electrospun carbon nanofibers in energy applications: on-going approaches and challenges

Abstract:
Recent advances in the on-going approaches for activating electrospun carbon nanofibers and addressing the key issues faced are critically examined in connection with their electrochemical performance as supercapacitor electrodes.

Cited by 78 publications

References 243 publications

Boosting the electrochemical properties of carbon materials as bipolar electrodes by introducing oxygen functional groups

Boosting the electrochemical properties of carbon materials as bipolar electrodes by introducing oxygen functional groups

Nanohollow Carbon for Rechargeable Batteries: Ongoing Progresses and Challenges

Recent Developments of Transition Metal Compounds-Carbon Hybrid Electrodes for High Energy/Power Supercapacitors

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Key issues facing electrospun carbon nanofibers in energy applications: on-going approaches and challenges

Abstract: Recent advances in the on-going approaches for activating electrospun carbon nanofibers and addressing the key issues faced are critically examined in connection with their electrochemical performance as supercapacitor electrodes.

Cited by 78 publications

References 243 publications

Boosting the electrochemical properties of carbon materials as bipolar electrodes by introducing oxygen functional groups

Boosting the electrochemical properties of carbon materials as bipolar electrodes by introducing oxygen functional groups

Nanohollow Carbon for Rechargeable Batteries: Ongoing Progresses and Challenges

Recent Developments of Transition Metal Compounds-Carbon Hybrid Electrodes for High Energy/Power Supercapacitors

Contact Info

Product

Resources

About

Abstract:
Recent advances in the on-going approaches for activating electrospun carbon nanofibers and addressing the key issues faced are critically examined in connection with their electrochemical performance as supercapacitor electrodes.