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 -