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High Voltage Mg-Doped Na 0.67 Ni 0.3– x Mg x Mn 0.7 O 2 ( x = 0.05, 0.1) Na-Ion Cathodes with Enhanced Stability and Rate Capability

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High Voltage Mg-Doped Na 0.67 Ni 0.3– x Mg x Mn 0.7 O 2 ( x = 0.05, 0.1) Na-Ion Cathodes with Enhanced Stability and Rate Capability. / Singh, Gurpreet; Tapia-Ruiz, Nuria; Lopez del Amo, Juan Miguel et al.

In: Chemistry of Materials, Vol. 28, No. 14, 26.07.2016, p. 5087-5094.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Singh, G, Tapia-Ruiz, N, Lopez del Amo, JM, Maitra, U, Somerville, JW, Armstrong, AR, Martinez de Ilarduya, J, Rojo, T & Bruce, PG 2016, 'High Voltage Mg-Doped Na 0.67 Ni 0.3– x Mg x Mn 0.7 O 2 ( x = 0.05, 0.1) Na-Ion Cathodes with Enhanced Stability and Rate Capability', Chemistry of Materials, vol. 28, no. 14, pp. 5087-5094. https://doi.org/10.1021/acs.chemmater.6b01935

APA

Singh, G., Tapia-Ruiz, N., Lopez del Amo, J. M., Maitra, U., Somerville, J. W., Armstrong, A. R., Martinez de Ilarduya, J., Rojo, T., & Bruce, P. G. (2016). High Voltage Mg-Doped Na 0.67 Ni 0.3– x Mg x Mn 0.7 O 2 ( x = 0.05, 0.1) Na-Ion Cathodes with Enhanced Stability and Rate Capability. Chemistry of Materials, 28(14), 5087-5094. https://doi.org/10.1021/acs.chemmater.6b01935

Vancouver

Singh G, Tapia-Ruiz N, Lopez del Amo JM, Maitra U, Somerville JW, Armstrong AR et al. High Voltage Mg-Doped Na 0.67 Ni 0.3– x Mg x Mn 0.7 O 2 ( x = 0.05, 0.1) Na-Ion Cathodes with Enhanced Stability and Rate Capability. Chemistry of Materials. 2016 Jul 26;28(14):5087-5094. Epub 2016 Jun 27. doi: 10.1021/acs.chemmater.6b01935

Author

Singh, Gurpreet ; Tapia-Ruiz, Nuria ; Lopez del Amo, Juan Miguel et al. / High Voltage Mg-Doped Na 0.67 Ni 0.3– x Mg x Mn 0.7 O 2 ( x = 0.05, 0.1) Na-Ion Cathodes with Enhanced Stability and Rate Capability. In: Chemistry of Materials. 2016 ; Vol. 28, No. 14. pp. 5087-5094.

Bibtex

@article{5ba3eacebec04c6980a58de507903b08,
title = "High Voltage Mg-Doped Na 0.67 Ni 0.3– x Mg x Mn 0.7 O 2 ( x = 0.05, 0.1) Na-Ion Cathodes with Enhanced Stability and Rate Capability",
abstract = "Magnesium substituted P2-structure Na0.67Ni0.3Mn0.7O2 materials have been prepared by a facile solid-state method and investigated as cathodes in sodium-ion batteries. The Mg-doped materials described here were characterized by X-ray diffraction (XRD), 23Na solid-state nuclear magnetic resonance (SS-NMR), and scanning electron microscopy (SEM). The electrochemical performance of the samples was tested in half cells vs Na metal at room temperature. The Mg-doped materials operate at a high average voltage of ca. 3.3 V vs Na/Na+ delivering specific capacities of ∼120 mAh g–1, which remain stable up to 50 cycles. Mg doping suppresses the well-known P2–O2 phase transition observed in the undoped composition by stabilizing the reversible OP4 phase during charging (during Na removal). GITT measurements showed that the Na-ion mobility is improved by 2 orders of magnitude with respect to the parent P2–Na0.67Ni0.3Mn0.7O2 material. The fast Na-ion mobility may be the cause of the enhanced rate performance.",
author = "Gurpreet Singh and Nuria Tapia-Ruiz and {Lopez del Amo}, {Juan Miguel} and Urmimala Maitra and Somerville, {James W.} and Armstrong, {A. Robert} and {Martinez de Ilarduya}, Jaione and Te{\'o}filo Rojo and Bruce, {Peter G.}",
year = "2016",
month = jul,
day = "26",
doi = "10.1021/acs.chemmater.6b01935",
language = "English",
volume = "28",
pages = "5087--5094",
journal = "Chemistry of Materials",
issn = "0897-4756",
publisher = "AMER CHEMICAL SOC",
number = "14",

}

RIS

TY - JOUR

T1 - High Voltage Mg-Doped Na 0.67 Ni 0.3– x Mg x Mn 0.7 O 2 ( x = 0.05, 0.1) Na-Ion Cathodes with Enhanced Stability and Rate Capability

AU - Singh, Gurpreet

AU - Tapia-Ruiz, Nuria

AU - Lopez del Amo, Juan Miguel

AU - Maitra, Urmimala

AU - Somerville, James W.

AU - Armstrong, A. Robert

AU - Martinez de Ilarduya, Jaione

AU - Rojo, Teófilo

AU - Bruce, Peter G.

PY - 2016/7/26

Y1 - 2016/7/26

N2 - Magnesium substituted P2-structure Na0.67Ni0.3Mn0.7O2 materials have been prepared by a facile solid-state method and investigated as cathodes in sodium-ion batteries. The Mg-doped materials described here were characterized by X-ray diffraction (XRD), 23Na solid-state nuclear magnetic resonance (SS-NMR), and scanning electron microscopy (SEM). The electrochemical performance of the samples was tested in half cells vs Na metal at room temperature. The Mg-doped materials operate at a high average voltage of ca. 3.3 V vs Na/Na+ delivering specific capacities of ∼120 mAh g–1, which remain stable up to 50 cycles. Mg doping suppresses the well-known P2–O2 phase transition observed in the undoped composition by stabilizing the reversible OP4 phase during charging (during Na removal). GITT measurements showed that the Na-ion mobility is improved by 2 orders of magnitude with respect to the parent P2–Na0.67Ni0.3Mn0.7O2 material. The fast Na-ion mobility may be the cause of the enhanced rate performance.

AB - Magnesium substituted P2-structure Na0.67Ni0.3Mn0.7O2 materials have been prepared by a facile solid-state method and investigated as cathodes in sodium-ion batteries. The Mg-doped materials described here were characterized by X-ray diffraction (XRD), 23Na solid-state nuclear magnetic resonance (SS-NMR), and scanning electron microscopy (SEM). The electrochemical performance of the samples was tested in half cells vs Na metal at room temperature. The Mg-doped materials operate at a high average voltage of ca. 3.3 V vs Na/Na+ delivering specific capacities of ∼120 mAh g–1, which remain stable up to 50 cycles. Mg doping suppresses the well-known P2–O2 phase transition observed in the undoped composition by stabilizing the reversible OP4 phase during charging (during Na removal). GITT measurements showed that the Na-ion mobility is improved by 2 orders of magnitude with respect to the parent P2–Na0.67Ni0.3Mn0.7O2 material. The fast Na-ion mobility may be the cause of the enhanced rate performance.

U2 - 10.1021/acs.chemmater.6b01935

DO - 10.1021/acs.chemmater.6b01935

M3 - Journal article

VL - 28

SP - 5087

EP - 5094

JO - Chemistry of Materials

JF - Chemistry of Materials

SN - 0897-4756

IS - 14

ER -