3D-Structured Polyoxometalate Microcrystals with Enhanced Rate Capability and Cycle Stability for Lithium-Ion Storage
Sun, K (Sun, Kang)[ 1 ]; Li, HQ (Li, Hongqin)[ 2 ]; Ye, HJ (Ye, Haijun)[ 2 ]; Jiang, FQ (Jiang, Fangqing)[ 2 ]; Zhu, H (Zhu, Hui)[ 2 ]; Yin, J (Yin, Jiao)[ 3 ]
2018
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume10Issue:22Pages:18657-18664
Abstract

The unsatisfactory rate capability and poor cycle stability are two major obstacles for polyoxometalates (POMs) in lithium-ion storage. On the other hand, how to endow POMs with 3D macrostructures for further practice is a challenge. To this end, a facile hydrothermal strategy was practiced to fabricate Co8W12O42(OH)(4)(H2O)(8) microcrystals or CoWO4 aggregates onto the foamed substrate (denoted as CoW-POM and CoW-Salt, respectively). Integrating the extraordinary redox stability and lattice deformability of POMs with the excellent volume accommodation, the as-prepared CoW-POM presents an extraordinary better electro-chemical performance (specific capacity, rate capability, and cycle life) than that of CoW-Salt. In detail, the CoW-POM can deliver a reversible capacity of 737.8 mA h g(-1) at the current density of 0.1 A g(-1) and provide a capacity retention of 90.1% even after 100 cycles. This work not only promotes the application of POMs in energy storage and conversion but also guides an effect methodology to endow POMs with 3D structures.

KeywordPolyoxometalate Microcrystals Metal Oxide Li-ion Battery 3d Structure
DOI10.1021/acsami.8603071
Indexed BySCI
WOS IDWOS:000434895500025
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/5607
Collection中国科学院特殊环境功能材料与器件重点试验室
Affiliation1.CAF, Natl Engn Lab Biomass Chem Utilizat, Inst Chem Ind Forest Prod, Nanjing 210042, Jiangsu, Peoples R China
2.Nanchang Univ, Coll Chem, 999 Xuefu Ave, Nanchang 330031, Jiangxi, Peoples R China
3.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Key Lab Funct Mat & Devices Special Environm, 40-1 South Beijing Rd, Urumqi 830011, Xinjiang, Peoples R China
Recommended Citation
GB/T 7714
Sun, K ,Li, HQ ,Ye, HJ ,et al. 3D-Structured Polyoxometalate Microcrystals with Enhanced Rate Capability and Cycle Stability for Lithium-Ion Storage[J]. ACS APPLIED MATERIALS & INTERFACES,2018,10(22):18657-18664.
APA Sun, K ,Li, HQ ,Ye, HJ ,Jiang, FQ ,Zhu, H ,&Yin, J .(2018).3D-Structured Polyoxometalate Microcrystals with Enhanced Rate Capability and Cycle Stability for Lithium-Ion Storage.ACS APPLIED MATERIALS & INTERFACES,10(22),18657-18664.
MLA Sun, K ,et al."3D-Structured Polyoxometalate Microcrystals with Enhanced Rate Capability and Cycle Stability for Lithium-Ion Storage".ACS APPLIED MATERIALS & INTERFACES 10.22(2018):18657-18664.
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