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

Yuwei Zhao; Chang Liu; Chenyang Zha; Jing Li; Chongguang Lyu; Kaixi Wang; Junfeng Li; Kwan San Hui; Linghai Zhang; Kwun Nam Hui

doi:10.1016/j.cclet.2023.108189

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

Yuwei Zhao, Chang Liu, Chenyang Zha, Jing Li, Chongguang Lyu, Kaixi Wang, Junfeng Li, Kwan San Hui, Linghai Zhang, Kwun Nam Hui

Research output: Contribution to journal › Article › peer-review

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

Original language	English
Article number	108189
Journal	Chinese Chemical Letters
Early online date	3 Feb 2023
DOIs	https://doi.org/10.1016/j.cclet.2023.108189
Publication status	E-pub ahead of print - 3 Feb 2023

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10.1016/j.cclet.2023.108189

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Embargo ends: 3/02/24

Cite this

@article{57d4e20fd5fa48f79e218f3b45f33555,

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

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",

author = "Yuwei Zhao and Chang Liu and Chenyang Zha and Jing Li and Chongguang Lyu and Kaixi Wang and Junfeng Li and Hui, {Kwan San} and Linghai Zhang and Hui, {Kwun Nam}",

year = "2023",

month = feb,

day = "3",

doi = "10.1016/j.cclet.2023.108189",

language = "English",

journal = "Chinese Chemical Letters",

issn = "1001-8417",

publisher = "Elsevier",

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TY - JOUR

T1 - Tailoring WB morphology enables d-band centers to be highly active for high-performance lithium-sulfur battery

AU - Zhao, Yuwei

AU - Liu, Chang

AU - Zha, Chenyang

AU - Li, Jing

AU - Lyu, Chongguang

AU - Wang, Kaixi

AU - Li, Junfeng

AU - Hui, Kwan San

AU - Zhang, Linghai

AU - Hui, Kwun Nam

PY - 2023/2/3

Y1 - 2023/2/3

N2 - 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

AB - 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

U2 - 10.1016/j.cclet.2023.108189

DO - 10.1016/j.cclet.2023.108189

M3 - Article

JO - Chinese Chemical Letters

JF - Chinese Chemical Letters

SN - 1001-8417

M1 - 108189

ER -