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Water-Pillared Sodium Vanadium Bronze Nanowires for Enhanced Rechargeable Magnesium Ion Storage.
Small. 2020 Jul; 16(30):e2000741.S

Abstract

Owing to the advantages of high safety, low cost, high theoretical volumetric capacities, and environmental friendliness, magnesium-ion batteries (MIBs) have more feasibility for large-scale energy storage compared to lithium-ion batteries. However, lack of suitable cathode materials due to sluggish kinetics of magnesium ion is one of the biggest challenges. Herein, water-pillared sodium vanadium bronze nanowires (Na2 V6 O16 ·1.63H2 O) are reported as cathode material for MIBs, which display high performance in magnesium storage. The hydrated sodium ions provide excellent structural stability. The charge shielding effect of lattice water enables fast Mg2+ diffusion. It exhibits high specific capacity of 175 mAh g-1 , long cycle life (450 cycles), and high coulombic efficiency (≈100%). At high current density of 200 mA g-1 , the capacity retention is up to 71% even after 450 cycles (compared to the highest capacity), demonstrating excellent long-term cycling performance. The nature of charge storage kinetics is explored. Furthermore, a highly reversible structure change during the electrochemical process is proved by comprehensive electrochemical analysis. The remarkable electrochemical performance makes Na2 V6 O16 ·1.63H2 O a promising cathode material for low-cost and safe MIBs.

Authors+Show Affiliations

Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD, 20742, USA. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD, 20742, USA.Department of Chemistry and Biochemistry, George Mason University, Fairfax, VA, 22030, USA.Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD, 20742, USA.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD, 20742, USA.Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD, 20742, USA.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD, 20742, USA.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32578349

Citation

Sun, Ruimin, et al. "Water-Pillared Sodium Vanadium Bronze Nanowires for Enhanced Rechargeable Magnesium Ion Storage." Small (Weinheim an Der Bergstrasse, Germany), vol. 16, no. 30, 2020, pp. e2000741.
Sun R, Ji X, Luo C, et al. Water-Pillared Sodium Vanadium Bronze Nanowires for Enhanced Rechargeable Magnesium Ion Storage. Small. 2020;16(30):e2000741.
Sun, R., Ji, X., Luo, C., Hou, S., Hu, P., Pu, X., Cao, L., Mai, L., & Wang, C. (2020). Water-Pillared Sodium Vanadium Bronze Nanowires for Enhanced Rechargeable Magnesium Ion Storage. Small (Weinheim an Der Bergstrasse, Germany), 16(30), e2000741. https://doi.org/10.1002/smll.202000741
Sun R, et al. Water-Pillared Sodium Vanadium Bronze Nanowires for Enhanced Rechargeable Magnesium Ion Storage. Small. 2020;16(30):e2000741. PubMed PMID: 32578349.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Water-Pillared Sodium Vanadium Bronze Nanowires for Enhanced Rechargeable Magnesium Ion Storage. AU - Sun,Ruimin, AU - Ji,Xiao, AU - Luo,Chao, AU - Hou,Singyuk, AU - Hu,Ping, AU - Pu,Xiangjun, AU - Cao,Longsheng, AU - Mai,Liqiang, AU - Wang,Chunsheng, Y1 - 2020/06/23/ PY - 2020/02/05/received PY - 2020/05/09/revised PY - 2020/6/25/pubmed PY - 2020/6/25/medline PY - 2020/6/25/entrez KW - cathodes KW - magnesium-ion batteries KW - nanowires KW - sodium vanadium bronze SP - e2000741 EP - e2000741 JF - Small (Weinheim an der Bergstrasse, Germany) JO - Small VL - 16 IS - 30 N2 - Owing to the advantages of high safety, low cost, high theoretical volumetric capacities, and environmental friendliness, magnesium-ion batteries (MIBs) have more feasibility for large-scale energy storage compared to lithium-ion batteries. However, lack of suitable cathode materials due to sluggish kinetics of magnesium ion is one of the biggest challenges. Herein, water-pillared sodium vanadium bronze nanowires (Na2 V6 O16 ·1.63H2 O) are reported as cathode material for MIBs, which display high performance in magnesium storage. The hydrated sodium ions provide excellent structural stability. The charge shielding effect of lattice water enables fast Mg2+ diffusion. It exhibits high specific capacity of 175 mAh g-1 , long cycle life (450 cycles), and high coulombic efficiency (≈100%). At high current density of 200 mA g-1 , the capacity retention is up to 71% even after 450 cycles (compared to the highest capacity), demonstrating excellent long-term cycling performance. The nature of charge storage kinetics is explored. Furthermore, a highly reversible structure change during the electrochemical process is proved by comprehensive electrochemical analysis. The remarkable electrochemical performance makes Na2 V6 O16 ·1.63H2 O a promising cathode material for low-cost and safe MIBs. SN - 1613-6829 UR - https://www.unboundmedicine.com/medline/citation/32578349/Water_Pillared_Sodium_Vanadium_Bronze_Nanowires_for_Enhanced_Rechargeable_Magnesium_Ion_Storage_ L2 - https://doi.org/10.1002/smll.202000741 DB - PRIME DP - Unbound Medicine ER -
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