Ionic Liquids Achieve the Exfoliation of Ultrathin Two-Dimensional VOPO4 center dot 2H(2)O Crystalline Nanosheets: Implications on Energy Storage and Catalysis

doi:10.1021/acsanm.0c03075

	Ionic Liquids Achieve the Exfoliation of Ultrathin Two-Dimensional VOPO4 center dot 2H(2)O Crystalline Nanosheets: Implications on Energy Storage and Catalysis
	Li, Kang 2,3; Li, Yinwei 1,2; Xie, Zhiqi 2,3; Tan, Xin 1,2; Zhang, Xiaojing 1,2; Liu, Ruixia 1,2,4; Song, Yu-Fei 3; Zhang, Suojiang 1,2,4
刊名	ACS APPLIED NANO MATERIALS
	2021-03-26
卷号	4 期号:3 页码:2503-2514
关键词	VOPO4 center dot 2H(2)O ionic liquids two-dimensional materials crystalline nanosheets hydrogen bond exfoliation
ISSN号	2574-0970
DOI	10.1021/acsanm.0c03075
英文摘要	Two-dimensional (2D) nanosheets have been widely reported and applied. Among them, 2D VOPO4 center dot 2H(2)O (HVPO) is widely used in the chemical industry and energy storage field because of its polyanionic laminates. However, its layered structure is difficult to be damaged because of the strong hydrate hydrogen bonds and a small interlayer spacing. Herein, the ionic liquids (ILs) are utilized to achieve the physicochemical exfoliation of HVPO. Also, the ultrathin two-dimensional (2D) crystalline nanosheets are successfully obtained with fully exposed crystal planes and a monoatomic or few-atomic-layer structure. Further, the exfoliation mechanism of hydrogen bond destruction and recombination is proposed by combining the density functional theory (DFT) and characterization analysis. The strong hydration hydrogen bonding of an HVPO interlayer is destroyed and a system of hydrogen bonds between the cations of the ILs with a layered plate of VOPO4 and the anions of the ILs with crystal water is reformed. Besides, reassembly of the 2D nanosheets was prohibited due to the recombination of the hydrogen-bonding network. It is found that the 2D crystalline nanosheets have a quenching effect on the photoluminescence of ILs and have good electrochemical properties such as reducing the battery impedance (about 5 times less than that of the blank) and reducing the redox potential difference.
资助项目	National Key Research and Development Program of China[2017YFA0206803] ; National Natural Science Foundation of China[21808223] ; Key Program of the Chinese Academy of Sciences[KFZD-SW-413] ; Key Program of the Innovation Academy for Green Manufacture, CAS[IAGM2020C17] ; Science Fund for Creative Research Groups of the National Natural Science Foundation of China[21921005]
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000635462900023
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Key Program of the Chinese Academy of Sciences ; Key Program of the Innovation Academy for Green Manufacture, CAS ; Science Fund for Creative Research Groups of the National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/48457]
专题	中国科学院过程工程研究所
通讯作者	Liu, Ruixia; Song, Yu-Fei; Zhang, Suojiang
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, CAS Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China 3.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, Beijing 100029, Peoples R China 4.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Li, Kang,Li, Yinwei,Xie, Zhiqi,et al. Ionic Liquids Achieve the Exfoliation of Ultrathin Two-Dimensional VOPO4 center dot 2H(2)O Crystalline Nanosheets: Implications on Energy Storage and Catalysis[J]. ACS APPLIED NANO MATERIALS,2021,4(3):2503-2514.
APA	Li, Kang.,Li, Yinwei.,Xie, Zhiqi.,Tan, Xin.,Zhang, Xiaojing.,...&Zhang, Suojiang.(2021).Ionic Liquids Achieve the Exfoliation of Ultrathin Two-Dimensional VOPO4 center dot 2H(2)O Crystalline Nanosheets: Implications on Energy Storage and Catalysis.ACS APPLIED NANO MATERIALS,4(3),2503-2514.
MLA	Li, Kang,et al."Ionic Liquids Achieve the Exfoliation of Ultrathin Two-Dimensional VOPO4 center dot 2H(2)O Crystalline Nanosheets: Implications on Energy Storage and Catalysis".ACS APPLIED NANO MATERIALS 4.3(2021):2503-2514.