Lithium-ion adsorption on surface modified porous carbon

Lithium-ion storage in porous carbon electrodes offers challenges due to poor electrode kinetics and limited storability. In this article, we demonstrate improved lithium-ion storage kinetics and rate capability in carbon electrode with appropriate surface or void modifications. The surface of porou...

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Main Authors: Vijayan, Bincy Lathakumary, Amina, Yasin, Izan Izwan, Misnon, Karuppiah, Chelladurai, Yang, Chun-Chen, Rajan, Jose
Format: Article
Language:English
English
Published: Elsevier Ltd 2023
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/41470/
http://umpir.ump.edu.my/id/eprint/41470/1/Lithium-ion%20adsorption%20on%20surface.pdf
http://umpir.ump.edu.my/id/eprint/41470/2/Lithium-ion%20adsorption%20on%20surface%20modified%20porous%20carbon.pdf
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author Vijayan, Bincy Lathakumary
Amina, Yasin
Izan Izwan, Misnon
Karuppiah, Chelladurai
Yang, Chun-Chen
Rajan, Jose
author_facet Vijayan, Bincy Lathakumary
Amina, Yasin
Izan Izwan, Misnon
Karuppiah, Chelladurai
Yang, Chun-Chen
Rajan, Jose
author_sort Vijayan, Bincy Lathakumary
building UMP Institutional Repository
collection Online Access
description Lithium-ion storage in porous carbon electrodes offers challenges due to poor electrode kinetics and limited storability. In this article, we demonstrate improved lithium-ion storage kinetics and rate capability in carbon electrode with appropriate surface or void modifications. The surface of porous carbon is modified by developing a thin film of either a metal oxide (Mn2O3) or a metal (cobalt) or the large voids in them are filled using hierarchical MnCo2O4 or TiO2 nanoflowers. Lithium-ion capacitors are fabricated in the Carbon//LiPF6//Li configuration and evaluated their lithium storage performance using cyclic voltammetry, galvanostatic charge discharge cycling, and electrochemical impedance spectroscopy. While the surface or void modification nominally increased the specific capacitance, the potential window and rate capability of the resulting devices remarkably increased. Among all the tested devices, the MnCo2O4 flowers filled electrode showed the largest capacitance and capacity retention, which are ascribed to its lower lithium transfer resistance.
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institution Universiti Malaysia Pahang
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language English
English
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publishDate 2023
publisher Elsevier Ltd
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spelling ump-414702024-06-05T08:56:25Z http://umpir.ump.edu.my/id/eprint/41470/ Lithium-ion adsorption on surface modified porous carbon Vijayan, Bincy Lathakumary Amina, Yasin Izan Izwan, Misnon Karuppiah, Chelladurai Yang, Chun-Chen Rajan, Jose HD28 Management. Industrial Management Lithium-ion storage in porous carbon electrodes offers challenges due to poor electrode kinetics and limited storability. In this article, we demonstrate improved lithium-ion storage kinetics and rate capability in carbon electrode with appropriate surface or void modifications. The surface of porous carbon is modified by developing a thin film of either a metal oxide (Mn2O3) or a metal (cobalt) or the large voids in them are filled using hierarchical MnCo2O4 or TiO2 nanoflowers. Lithium-ion capacitors are fabricated in the Carbon//LiPF6//Li configuration and evaluated their lithium storage performance using cyclic voltammetry, galvanostatic charge discharge cycling, and electrochemical impedance spectroscopy. While the surface or void modification nominally increased the specific capacitance, the potential window and rate capability of the resulting devices remarkably increased. Among all the tested devices, the MnCo2O4 flowers filled electrode showed the largest capacitance and capacity retention, which are ascribed to its lower lithium transfer resistance. Elsevier Ltd 2023 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/41470/1/Lithium-ion%20adsorption%20on%20surface.pdf pdf en http://umpir.ump.edu.my/id/eprint/41470/2/Lithium-ion%20adsorption%20on%20surface%20modified%20porous%20carbon.pdf Vijayan, Bincy Lathakumary and Amina, Yasin and Izan Izwan, Misnon and Karuppiah, Chelladurai and Yang, Chun-Chen and Rajan, Jose (2023) Lithium-ion adsorption on surface modified porous carbon. Journal of Energy Storage, 71 (108221). pp. 1-10. ISSN 2352-152X. (Published) https://doi.org/10.1016/j.est.2023.108221 10.1016/j.est.2023.108221
spellingShingle HD28 Management. Industrial Management
Vijayan, Bincy Lathakumary
Amina, Yasin
Izan Izwan, Misnon
Karuppiah, Chelladurai
Yang, Chun-Chen
Rajan, Jose
Lithium-ion adsorption on surface modified porous carbon
title Lithium-ion adsorption on surface modified porous carbon
title_full Lithium-ion adsorption on surface modified porous carbon
title_fullStr Lithium-ion adsorption on surface modified porous carbon
title_full_unstemmed Lithium-ion adsorption on surface modified porous carbon
title_short Lithium-ion adsorption on surface modified porous carbon
title_sort lithium-ion adsorption on surface modified porous carbon
topic HD28 Management. Industrial Management
url http://umpir.ump.edu.my/id/eprint/41470/
http://umpir.ump.edu.my/id/eprint/41470/
http://umpir.ump.edu.my/id/eprint/41470/
http://umpir.ump.edu.my/id/eprint/41470/1/Lithium-ion%20adsorption%20on%20surface.pdf
http://umpir.ump.edu.my/id/eprint/41470/2/Lithium-ion%20adsorption%20on%20surface%20modified%20porous%20carbon.pdf