pH-regulative synthesis of Na-3(VPO4)2F(3) nanoflowers and their improved Na cycling stability
Qi, Yuruo1,2; Mu, Linqin3; Zhao, Junmei1; Hu, Yong-Sheng2,3; Liu, Huizhou1; Dai, Sheng4
2016
发表期刊JOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
卷号4期号:19页码:7178-7184
摘要Na-ion batteries are becoming increasingly attractive as a low cost energy storage device. Sodium vanadium fluorophosphates have been studied extensively recently due to their high storage capacity and high discharge voltage. Shape and size often have a crucial influence over the properties. The controlling synthesis of nanoparticles with special microstructures is significant, which becomes a challenging issue and has drawn considerable attention. In this study, Na-3(VPO4)(2)F-3 nanoflowers have been synthesized via a pH-regulative low-temperature (120 degrees C) hydro-thermal route. In particular, it is a green route without any organic compounds involved. The hydro -thermal reaction time for the formation of Na-3(VPO4)(2)F-3 nanoflowers has also been investigated. A weak acid environment (pH = 2.60) with the possible presence of hydrogen fluoride molecules is necessary for the formation of the desired nanoflower microstructures. Compared to the nanoparticles obtained by Na2HPO4.12H(2)O, the as synthesized Na-3(VPO4)(2)F-3 nanoflowers showed an excellent Na-storage performance in terms of superior cycle stability, even without any further carbon coating or high-temperature treatment.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1039/c6ta01023g
收录类别SCI
语种英语
关键词[WOS]SODIUM-ION BATTERIES ; CATHODE MATERIALS ; VANADIUM FLUOROPHOSPHATE ; LITHIUM-ION ; NA3V2(PO4)(2)F-3 CATHODE ; ENERGY-STORAGE ; NANOCRYSTALS ; PERFORMANCE ; PHASE ; NA3V2O2X(PO4)(2)F3-2X
WOS研究方向Chemistry ; Energy & Fuels ; Materials Science
WOS类目Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
项目资助者Beijing Natural Science Foundation(2142030) ; State Scholarship Fund from China Scholarship Council ; U.S. Department of Energy's Office of Basic Energy Science, Division of Materials Sciences and Engineering ; UT-Battelle, LLC
WOS记录号WOS:000376035300011
引用统计
被引频次:14[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21074
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
4.Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA
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Qi, Yuruo,Mu, Linqin,Zhao, Junmei,et al. pH-regulative synthesis of Na-3(VPO4)2F(3) nanoflowers and their improved Na cycling stability[J]. JOURNAL OF MATERIALS CHEMISTRY A,2016,4(19):7178-7184.
APA Qi, Yuruo,Mu, Linqin,Zhao, Junmei,Hu, Yong-Sheng,Liu, Huizhou,&Dai, Sheng.(2016).pH-regulative synthesis of Na-3(VPO4)2F(3) nanoflowers and their improved Na cycling stability.JOURNAL OF MATERIALS CHEMISTRY A,4(19),7178-7184.
MLA Qi, Yuruo,et al."pH-regulative synthesis of Na-3(VPO4)2F(3) nanoflowers and their improved Na cycling stability".JOURNAL OF MATERIALS CHEMISTRY A 4.19(2016):7178-7184.
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