Hydrophilic and nanocrystalline carbon quantum dots enable highly reversible zinc-ion batteries

doi:10.1039/d4gc01434k

	Hydrophilic and nanocrystalline carbon quantum dots enable highly reversible zinc-ion batteries
	Yang, Shuhua 1; Xu, Zenglong 1; Wang, Song 1; Sun, Jinfeng 1; Zhao, Degang 1; Cao, Bingqiang 1; Wang, Xiutong 2,3
	2024-05-24
发表期刊	GREEN CHEMISTRY
ISSN	1463-9262
页码	9
通讯作者	Yang, Shuhua(yangshuhua78@163.com)
摘要	Aqueous zinc-ion batteries (AZIBs) have great potential in the field of stationary energy storage due to their low manufacturing cost and high safety. However, the zinc dendrite growth arising from the uneven deposition of zinc ions has been inhibiting the application of AZIBs. In this work, hydrophilic and nanocrystalline carbon quantum dots (CQDs) are synthesized and used as electrolyte additives to improve the dendrite issue. The abundant hydrophilic groups on CQDs are favorable for homogeneous Zn deposition, whereas the improved conductivity due to the high graphitization of CQDs reduces the solid-electrolyte interface impedance and lowers the polarization voltage, resulting in better rate capability of Zn-ion batteries. Owing to the reduced energy barrier of Zn2+ nucleation and the enhanced kinetics of Zn2+ plating/stripping derived from the hydrophilic and nanocrystalline CQDs, the Zn//Zn symmetrical batteries with CQDs can operate stably for more than 1000 h at 1 mA cm-2 and 1 mA h cm-2, and show superior rate performance with low voltage hysteresis of 98.3, 120.5, 156.4, and 210.2 mV at current densities of 1, 2, 3 and 4 mA cm-2. Moreover, Zn//Cu half-cells with CQDs achieve a high average coulombic efficiency of 99.7% at 1 mA cm-2 and 0.5 mA h cm-2, and Zn//MnO2 full batteries can be cycled more than 500 times with a capacity retention of 74%. Carbon quantum dots (CQDs) with rich functional groups and good nanocrystalline features are developed as an electrolyte additive for zinc-ion batteries, endowing the zinc anode with both high reversibility and fast kinetics.
DOI	10.1039/d4gc01434k
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of Shandong Province[ZR2022ME181] ; Shandong Provincial Natural Science Foundation ; Shandong Provincial General Undergraduate University Teacher Visiting and Studying Funds, Shandong Provincial Youth Tutor Visiting and Studying Funds[51702123] ; National Natural Science Foundation of China[tsqn202306225] ; Taishan Scholar Program of Shandong Province[2021GXRC082] ; Leader of Scientific Research Studio Program of Jinan ; University of Jinan
WOS研究方向	Chemistry ; Science & Technology - Other Topics
WOS类目	Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology
WOS记录号	WOS:001234084700001
出版者	ROYAL SOC CHEMISTRY
WOS关键词	ANODE
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/185934
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Yang, Shuhua
作者单位	1.Univ Jinan, Mat Ctr Energy & Photoelectrochem Convers, Sch Mat Sci & Engn, Jinan 250022, Peoples R China 2.Inst Oceanol, Chinese Acad Sci, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Yang, Shuhua,Xu, Zenglong,Wang, Song,et al. Hydrophilic and nanocrystalline carbon quantum dots enable highly reversible zinc-ion batteries[J]. GREEN CHEMISTRY,2024:9.
APA	Yang, Shuhua.,Xu, Zenglong.,Wang, Song.,Sun, Jinfeng.,Zhao, Degang.,...&Wang, Xiutong.(2024).Hydrophilic and nanocrystalline carbon quantum dots enable highly reversible zinc-ion batteries.GREEN CHEMISTRY,9.
MLA	Yang, Shuhua,et al."Hydrophilic and nanocrystalline carbon quantum dots enable highly reversible zinc-ion batteries".GREEN CHEMISTRY (2024):9.