Tailoring WB morphology enables d-band centers to be highly active for high-performance lithium-sulfur battery

Zhao, Yuwei, Liu, Chang, Zha, Chenyang, Li, Jing, Lyu, Chongguang, Wang, Kaixi, Li, Junfeng, Hui, Kwan San ORCID: https://orcid.org/0000-0001-7089-7587, Zhang, Linghai and Hui, Kwun Nam (2023) Tailoring WB morphology enables d-band centers to be highly active for high-performance lithium-sulfur battery. Chinese Chemical Letters, 34 (11). ISSN 1001-8417

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Abstract

The d-band centers of catalysts have exhibited excellent performance in various reactions. Among them, the enhanced catalytic reaction is considered a crucial way to power dynamics and reduce the "shuttle" effect in polysulfide conversions of lithium-sulfur batteries. Here, we report two-dimensional-shaped tungsten borides (WB) nanosheets with d-band centers, where the d orbits of W atoms on the (001) facets show greatly promoting the electrocatalytic sulfur reduction reaction. As-prepared WB-based Li-S cells exhibit excellent electrochemical performance for Li-ion storage. Especially, it delivers superior capacities of 7.7 mAh/cm2 under the 8.0 mg/cm2 sulfur loading, which is far superior to most other electrode catalysts. This study provides insights into the d-band centers as a promising catalyst of two-dimensional boride materials

Item Type: Article
Additional Information: Funding information: This work was supported by the National Natural Science Foundation of China (Nos. 61904080, 22205101), the Natural Science Foundation of Jiangsu Province (No. BK20190670), the Natural Science Foundation of Colleges and Universities in Jiangsu Province (No. 19KJB530008), the Macau Young Scholars Program (No. AM2020005), the High-Performance Computing Cluster (HPCC) of Information and Communication Technology Office (ICTO) at University of Macau, Science and Technology Development Fund, Macau SAR (Nos. 0191/2017/A3, 0041/2019/A1, 0046/2019/AFJ, 0021/2019/AIR), University of Macau (Nos. MYRG2017–00216-FST and MYRG2018–00192-IAPME), FDCT Funding Scheme for Postdoctoral Researchers (No. 0026/APD/2021), the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), the UEA funding, and Guangdong Basic and Applied Basic Research Foundation (No. 2022A1515110994).
Faculty \ School: Faculty of Science > School of Engineering
UEA Research Groups: Faculty of Science > Research Groups > Emerging Technologies for Electric Vehicles (EV)
Faculty of Science > Research Groups > Energy Materials Laboratory
Depositing User: LivePure Connector
Date Deposited: 21 Feb 2023 18:30
Last Modified: 03 Feb 2024 01:38
URI: https://ueaeprints.uea.ac.uk/id/eprint/91245
DOI: 10.1016/j.cclet.2023.108189

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