title: Co3V2O8 Sponge Network Morphology Derived from Metal-Organic Framework as an Excellent Lithium Storage Anode Material.
abstract: Metal-organic framework (MOF)-based synthesis of battery electrodes has presntly become a topic of significant research interest. Considering the complications to prepare Co3V2O8 due to the criticality of its stoichiometric composition, we report on a simple MOF-based solvothermal synthesis of Co3V2O8 for use as potential anodes for lithium battery applications. Characterizations by X-ray diffraction, X-ray photoelectron spectroscopy, high resolution electron microscopy, and porous studies revealed that the phase pure Co3V2O8 nanoparticles are interconnected to form a sponge-like morphology with porous properties. Electrochemical measurements exposed the excellent lithium storage (∼1000 mAh g(-1) at 200 mA g(-1)) and retention properties (501 mAh g(-1) at 1000 mA g(-1) after 700 cycles) of the prepared Co3V2O8 electrode. A notable rate performance of 430 mAh g(-1) at 3200 mA g(-1) was also observed, and ex situ investigations confirmed the morphological and structural stability of this material. These results validate that the unique nanostructured morphology arising from the use of the ordered array of MOF networks is favorable for improving the cyclability and rate capability in battery electrodes. The synthetic strategy presented herein may provide solutions to develop phase pure mixed metal oxides for high-performance electrodes for useful energy storage applications.
authors.affiliation: Department of Materials Science and Engineering, Chonnam National University , 300 Yongbong-dong, Bukgu, Gwangju 500-757, South Korea.
authors.forename: Vaiyapuri
authors.initials: V
authors.lastname: Soundharrajan
authors.affiliation: Department of Materials Science and Engineering, Chonnam National University , 300 Yongbong-dong, Bukgu, Gwangju 500-757, South Korea.
authors.forename: Balaji
authors.initials: B
authors.lastname: Sambandam
authors.affiliation: Department of Materials Science and Engineering, Chonnam National University , 300 Yongbong-dong, Bukgu, Gwangju 500-757, South Korea.
authors.forename: Jinju
authors.initials: J
authors.lastname: Song
authors.affiliation: Department of Materials Science and Engineering, Chonnam National University , 300 Yongbong-dong, Bukgu, Gwangju 500-757, South Korea.
authors.forename: Sungjin
authors.initials: S
authors.lastname: Kim
authors.affiliation: Department of Materials Science and Engineering, Chonnam National University , 300 Yongbong-dong, Bukgu, Gwangju 500-757, South Korea.
authors.forename: Jeonggeun
authors.initials: J
authors.lastname: Jo
authors.affiliation: Department of Materials Science and Engineering, Chonnam National University , 300 Yongbong-dong, Bukgu, Gwangju 500-757, South Korea.
authors.forename: Seokhun
authors.initials: S
authors.lastname: Kim
authors.affiliation: Department of Materials Science and Engineering, Chonnam National University , 300 Yongbong-dong, Bukgu, Gwangju 500-757, South Korea.
authors.forename: Seulgi
authors.initials: S
authors.lastname: Lee
authors.affiliation: Department of Materials Science and Engineering, Chonnam National University , 300 Yongbong-dong, Bukgu, Gwangju 500-757, South Korea.
authors.forename: Vinod
authors.initials: V
authors.lastname: Mathew
authors.affiliation: Department of Materials Science and Engineering, Chonnam National University , 300 Yongbong-dong, Bukgu, Gwangju 500-757, South Korea.
authors.forename: Jaekook
authors.initials: J
authors.lastname: Kim
keywords: Co3V2O8 sponge morphology; lithium-ion batteries; long life stability; metal−organic frameworks; solovothermal synthesize