Turbulent Flow-Driven Synthesis of Graphene-Skinned Boron Nitride Heterostructures for Dendrite-Free Potassium Metal Batteries

© 2025 Wiley‐VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - (2025) vom: 02. Sept., Seite e09937
1. Verfasser: Sun, Zhifeng (VerfasserIn)
Weitere Verfasser: Liu, Qian, Xia, Yuqi, Wu, Yuzhu, Wang, Wenhu, Wang, Tao, Hu, Yueming, Li, Weijia, Sun, Xiucai, Yu, Zhong-Zhen, Sun, Jingyu, Song, Yuqing, Liu, Zhongfan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2025
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article fluidized bed‐chemical vapor deposition graphene‐skinned h‐BN heterostructures potassium metal batteries turbulent flow
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520 |a Potassium metal batteries are considered as promising candidates for next-generation energy storage systems. However, their practical development is hindered by the insufficient capacity output and persistent dendritic proliferation at the anode side. Here graphene-skinned hexagonal boron nitride powder is demonstrated synthesized via fluidized bed-chemical vapor deposition, realizing conformal growth of layer-controlled graphene (5-90 layers) over h-BN with atomically coupled heterointerfaces. Fluid dynamic simulations of fluidization environments in fluidized-bed reactors reveal that localized turbulence-driven precursor transport enables uniform powder fluidization and homogeneous graphene formation. Potassium metal electrodes fabricated with Gr-skinned h-BN powder modified Al current collector exhibit favorable cyclic stability (1050 h at 0.5 mA cm-2) and low nucleation overpotential (<7 mV). The polar hexagonal lattice of h-BN and high surface energy (43.27 mJ m-2) of graphene readily promote uniform potassium deposition via Frank-van der Merwe mode. This dual-scale approach, which integrates atomic-scale interface engineering with reactor-scale manufacture innovation, offers an appealing pathway toward industrial-level production of high-performance metal batteries 
650 4 |a Journal Article 
650 4 |a fluidized bed‐chemical vapor deposition 
650 4 |a graphene‐skinned h‐BN 
650 4 |a heterostructures 
650 4 |a potassium metal batteries 
650 4 |a turbulent flow 
700 1 |a Liu, Qian  |e verfasserin  |4 aut 
700 1 |a Xia, Yuqi  |e verfasserin  |4 aut 
700 1 |a Wu, Yuzhu  |e verfasserin  |4 aut 
700 1 |a Wang, Wenhu  |e verfasserin  |4 aut 
700 1 |a Wang, Tao  |e verfasserin  |4 aut 
700 1 |a Hu, Yueming  |e verfasserin  |4 aut 
700 1 |a Li, Weijia  |e verfasserin  |4 aut 
700 1 |a Sun, Xiucai  |e verfasserin  |4 aut 
700 1 |a Yu, Zhong-Zhen  |e verfasserin  |4 aut 
700 1 |a Sun, Jingyu  |e verfasserin  |4 aut 
700 1 |a Song, Yuqing  |e verfasserin  |4 aut 
700 1 |a Liu, Zhongfan  |e verfasserin  |4 aut 
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773 1 8 |g year:2025  |g day:02  |g month:09  |g pages:e09937 
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