Gradient Mn-La-Pt catalysts with three-layered structure for Li-O2 BATTERY

Kedi Cai; Rui Yang; Xiaoshi Lang; Qingguo Zhang; Zhenhua Wang; Tieshi He

doi:10.1038/srep34950

Gradient Mn-La-Pt catalysts with three-layered structure for Li-O₂ BATTERY

Kedi Cai, Rui Yang, Xiaoshi Lang^*, Qingguo Zhang, Zhenhua Wang, Tieshi He

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Gradient Mn-La-Pt catalysts with three-layered structure of manganese dioxide (MnO₂), lanthanum oxide (La₂O₃), and Platinum (Pt) for Li-O₂battery are prepared in this study. The mass ratio of the catalysts is respectively 5:2:3, 4:2:4, and 3:2:5 (MnO₂: La₂O₃: Pt) which is start from the side of the electrolyte. The relationship between morphology structure and electrochemical performance of gradient catalyst is investigated by energy dispersive spectrometry and constant current charge/discharge test. The Li-O₂battery based on gradient Mn-La-Pt catalysts shows high discharge specific capacity (2707 mAh g -1), specific energy density (8400 Wh kg -1) and long cycle life (56 cycles). The improvement of the Li-O₂battery discharge capacity is attributed to the gradient distribution of MnO₂and Pt and the involvement of La₂O₃that can improve the energy density of the battery. More important, this work will also provide new ideas and methods for the research of other metal-air battery.

Original language	English
Article number	34950
Journal	Scientific Reports
Volume	6
DOIs	https://doi.org/10.1038/srep34950
Publication status	Published - 12 Oct 2016

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@article{ad88d278f6504916a4bf8398cfb0dae1,

title = "Gradient Mn-La-Pt catalysts with three-layered structure for Li-O2 BATTERY",

abstract = "Gradient Mn-La-Pt catalysts with three-layered structure of manganese dioxide (MnO2), lanthanum oxide (La2O3), and Platinum (Pt) for Li-O2battery are prepared in this study. The mass ratio of the catalysts is respectively 5:2:3, 4:2:4, and 3:2:5 (MnO2: La2O3: Pt) which is start from the side of the electrolyte. The relationship between morphology structure and electrochemical performance of gradient catalyst is investigated by energy dispersive spectrometry and constant current charge/discharge test. The Li-O2battery based on gradient Mn-La-Pt catalysts shows high discharge specific capacity (2707 mAh g -1), specific energy density (8400 Wh kg -1) and long cycle life (56 cycles). The improvement of the Li-O2battery discharge capacity is attributed to the gradient distribution of MnO2and Pt and the involvement of La2O3that can improve the energy density of the battery. More important, this work will also provide new ideas and methods for the research of other metal-air battery.",

author = "Kedi Cai and Rui Yang and Xiaoshi Lang and Qingguo Zhang and Zhenhua Wang and Tieshi He",

year = "2016",

month = oct,

day = "12",

doi = "10.1038/srep34950",

language = "English",

volume = "6",

journal = "Scientific Reports",

issn = "2045-2322",

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TY - JOUR

T1 - Gradient Mn-La-Pt catalysts with three-layered structure for Li-O2 BATTERY

AU - Cai, Kedi

AU - Yang, Rui

AU - Lang, Xiaoshi

AU - Zhang, Qingguo

AU - Wang, Zhenhua

AU - He, Tieshi

PY - 2016/10/12

Y1 - 2016/10/12

N2 - Gradient Mn-La-Pt catalysts with three-layered structure of manganese dioxide (MnO2), lanthanum oxide (La2O3), and Platinum (Pt) for Li-O2battery are prepared in this study. The mass ratio of the catalysts is respectively 5:2:3, 4:2:4, and 3:2:5 (MnO2: La2O3: Pt) which is start from the side of the electrolyte. The relationship between morphology structure and electrochemical performance of gradient catalyst is investigated by energy dispersive spectrometry and constant current charge/discharge test. The Li-O2battery based on gradient Mn-La-Pt catalysts shows high discharge specific capacity (2707 mAh g -1), specific energy density (8400 Wh kg -1) and long cycle life (56 cycles). The improvement of the Li-O2battery discharge capacity is attributed to the gradient distribution of MnO2and Pt and the involvement of La2O3that can improve the energy density of the battery. More important, this work will also provide new ideas and methods for the research of other metal-air battery.

AB - Gradient Mn-La-Pt catalysts with three-layered structure of manganese dioxide (MnO2), lanthanum oxide (La2O3), and Platinum (Pt) for Li-O2battery are prepared in this study. The mass ratio of the catalysts is respectively 5:2:3, 4:2:4, and 3:2:5 (MnO2: La2O3: Pt) which is start from the side of the electrolyte. The relationship between morphology structure and electrochemical performance of gradient catalyst is investigated by energy dispersive spectrometry and constant current charge/discharge test. The Li-O2battery based on gradient Mn-La-Pt catalysts shows high discharge specific capacity (2707 mAh g -1), specific energy density (8400 Wh kg -1) and long cycle life (56 cycles). The improvement of the Li-O2battery discharge capacity is attributed to the gradient distribution of MnO2and Pt and the involvement of La2O3that can improve the energy density of the battery. More important, this work will also provide new ideas and methods for the research of other metal-air battery.

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U2 - 10.1038/srep34950

DO - 10.1038/srep34950

M3 - Article

AN - SCOPUS:84991384143

SN - 2045-2322

VL - 6

JO - Scientific Reports

JF - Scientific Reports

M1 - 34950

ER -

Gradient Mn-La-Pt catalysts with three-layered structure for Li-O₂ BATTERY

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