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. 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
Faculty \ School:
Depositing User:	LivePure Connector
Date Deposited:	21 Feb 2023 18:30
Last Modified:	21 Feb 2023 18:30
URI:	https://ueaeprints.uea.ac.uk/id/eprint/91245
DOI:	10.1016/j.cclet.2023.108189

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