气候变化领域集成服务门户(CCPortal): Sulfur-assisted large-scale synthesis of graphene microspheres for superior potassium-ion batteries

CCPortal

DOI	10.1039/d0ee03203d
	Sulfur-assisted large-scale synthesis of graphene microspheres for superior potassium-ion batteries
	Zhang Q.; Cheng X.; Wang C.; Rao A.M.; Lu B.
发表日期	2021
ISSN	17545692
起始页码	965
结束页码	974
卷号	14 期号:2
英文摘要	Large-scale low-cost preparation methods for high quality graphene are critical for advancing graphene-based applications in energy storage, and beyond. Here, we present a sulfur-assisted method that converts benzene rings of tetraphenyltin into high purity crystalline graphene. Specifically, three dimensional few layer graphene microspheres (FLGMs) were prepared which proved ideal for energy storage applications. For a potassium ion battery, the FLGM-based anodes exhibited a low discharge platform (average discharge platform about 0.1 V), a high initial capacity of 285 mA h g-1 at 50 mA g-1, and a high rate performance (252 mA h g-1 at 100 mA g-1 and 95 mA h g-1 at 1000 mA g-1). Additionally, the FLGM-based anodes exhibited excellent cycling stability with no capacity loss after 1000 cycles at 200 mA g-1. A process of this nature which does not require substrates, and is scalable for continuous or semi-continuous production of graphene, paves the way for graphene-based energy storage devices. © The Royal Society of Chemistry.
英文关键词	Anodes; Energy storage; Microspheres; Potassium; Secondary batteries; Substrates; Sulfur; Cycling stability; Energy storage applications; Few-layer graphene; High-rate performance; Large scale synthesis; Potassium ions; Preparation method; Semi-continuous; Graphene; benzene; detection method; energy storage; equipment; performance assessment
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190781
作者单位	School of Physics and Electronics, Hunan Provincial Key Laboratory of Multi-electron Based Energy Storage Devices, Hunan University, Changsha, China; School of Chemistry and Chemical Engineering, Taishan University, Tai'an Shandong, 271000, China; School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Department of Physics and Astronomy, Clemson Nanomaterials Institute, Clemson University, Clemson, SC 29634, United States; Fujian Strait Research Institute of Industrial Graphene Technologies, Jinjiang, Fujian, 362200, China
推荐引用方式 GB/T 7714	Zhang Q.,Cheng X.,Wang C.,et al. Sulfur-assisted large-scale synthesis of graphene microspheres for superior potassium-ion batteries[J],2021,14(2).
APA	Zhang Q.,Cheng X.,Wang C.,Rao A.M.,&Lu B..(2021).Sulfur-assisted large-scale synthesis of graphene microspheres for superior potassium-ion batteries.Energy & Environmental Science,14(2).
MLA	Zhang Q.,et al."Sulfur-assisted large-scale synthesis of graphene microspheres for superior potassium-ion batteries".Energy & Environmental Science 14.2(2021).