Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/94023
Title: | Iridium-decorated carbon nanotubes as cathode catalysts for Li-CO2 batteries with a highly efficient direct Li2CO3 formation/decomposition capability | Authors: | Wang, J Zhai, Y Dang, F Zhao, L Xia, Q Li, D Zhuang, D Zhang, X |
Issue Date: | 2022 | Source: | Materials lab, 2022, v. 1, 220010 | Abstract: | Rechargeable Li-CO2 batteries are regarded as the ideal application for the superior energy storage technology. However, they still limited by the lack of high efficiency electrocatalyst and limited understanding for the electrochemical reaction mechanism. In this work, we prepared the Ir-CNT composite by a rotation hydrothermal method, which remarkably promoted the reaction kinetics and enhanced the electrocatalytic performance of Li-CO2 batteries. The incorporation of Ir nanoparticles shows high activity enhancement for the adsorption of Li2CO3 species, which was confirmed by density functional theory (DFT) calculations. The Ir-CNT cathode exhibited an excellent ability to catalyze the formation and decomposition of Li2CO3 during cycling. Therefore, a large specific capacity of 10325.9 mAh g−1 and an excellent high rate cyclability with stably over 100 cycles were achieved. The three-dimensional Ir-CNT cathode could spontaneously advance the electrocatalytic activity of CO2 oxidation and precipitation to increase specific capacities and cycle life, significantly boosting the practical application of Li-CO2 batteries. | Keywords: | Li-CO2 batteries Electrocatalysis Cathode catalyst Ir-CNT composite DFT calculations, |
Publisher: | Lab Academic Press (LAP) | Journal: | Materials lab | EISSN: | 2653-4878 | DOI: | 10.54227/mlab.20220010 | Rights: | © 2022 The Author(s). Materials Lab published by Lab Academic Press ©2022 The Authors. Materials Lab is published by Lab Academic Press. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. The following publication Jun Wang, Yanjie Zhai, Feng Dang, Lanling Zhao, Qing Xia, et al. Iridium-Decorated Carbon Nanotubes as Cathode Catalysts for Li-CO2 Batteries with a Highly Efficient Direct Li2CO3 Formation/Decomposition Capability. Materials Lab 2022, 1, 220010 is available at https://dx.doi.org/10.54227/mlab.20220010. |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Wang_Iridium-Decorated_Li-CO2_Li2CO3.pdf | 3.4 MB | Adobe PDF | View/Open |
Page views
71
Last Week
1
1
Last month
Citations as of May 5, 2024
Downloads
28
Citations as of May 5, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.