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Boosting the Zn2+ storage capacity of MoO3 nanoribbons by modulating the electrons spin states of Mo via Ni doping.
Tang, Hongwei; Zheng, Dezhou; Peng, Yanzhou; Geng, Shikuan; Wang, Fuxin; Wang, Hang; Wang, Guangxia; Xu, Wei; Lu, Xihong.
Afiliación
  • Tang H; School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, PR China.
  • Zheng D; School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, PR China.
  • Peng Y; School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, PR China.
  • Geng S; School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, PR China.
  • Wang F; School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, PR China. Electronic address: wangfux@mail2.sysu.edu.cn.
  • Wang H; Jiangmen Small and Medium Sized Enterprise Service Center, Jiangmen 529020, PR China.
  • Wang G; School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, PR China.
  • Xu W; School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, PR China. Electronic address: weixugreat@126.com.
  • Lu X; MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, The Key Lab of Low-carbon Chem & Energy Conservation of Guangdong Province, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China. Electronic address: luxh6@mail.sysu.edu.cn.
J Colloid Interface Sci ; 671: 702-711, 2024 Oct.
Article en En | MEDLINE | ID: mdl-38823111
ABSTRACT
Aqueous zinc-ion batteries (AZIBs) have received considerable potential for their affordability and high reliability. Among potential cathodes, α-MoO3 stands out due to its layered structure aligned with the (010) plane, offering extensive ionic insertion channels for enhanced charge storage. However, its limited electrochemical activity and poor Zn2+ transport kinetics present significant challenges for its deployment in energy storage devices. To overcome these limitations, we introduce a new strategy by doping α-MoO3 with Ni (Ni-MoO3), tuning the electron spin states of Mo. Thus modification can activate the reactivity of Ni-MoO3 towards Zn2+ storage and weaken the interaction between Ni-MoO3 and intercalated Zn2+, thereby accelerating the Zn2+ transport and storage. Consequently, the electrochemical properties of Ni-MoO3 significantly surpass those of pure MoO3, demonstrating a specific capacity of 258 mAh g-1 at 1 A g-1 and outstanding rate performance (120 mAh g-1 at 10 A g-1). After 1000 cycles at 8 A g-1, it retains 76 % of the initial capacity, with an energy density of 154.4 Wh kg-1 and a power density of 11.2 kW kg-1. This work proves that the modulation of electron spin states in cathode materials via metal ion doping can effectively boost their capacity and cycling durability.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Colloid Interface Sci Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
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XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Colloid Interface Sci Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos