An effective three-dimensional ordered mesoporous ZnCo2O4 as electrocatalyst for Li-O2 batteries

Pengfa Li; Wang Sun; Qilin Yu; Mengjie Guan; Jinshuo Qiao; Zhenhua Wang; David Rooney; Kening Sun

doi:10.1016/j.matlet.2015.06.006

An effective three-dimensional ordered mesoporous ZnCo₂O₄ as electrocatalyst for Li-O₂ batteries

Pengfa Li
, Wang Sun^*
, Qilin Yu
, Mengjie Guan
, Jinshuo Qiao
, Zhenhua Wang
, David Rooney
, Kening Sun

^*此作品的通讯作者

化学与化工学院

Beijing Institute of Technology
Queen's University Belfast

科研成果: 期刊稿件 › 文章 › 同行评审

28 引用（Scopus）

摘要

Three-dimensional ordered mesoporous (3DOM) ZnCo₂O₄ materials have been synthesized via a hard template and used as bifunctional electrocatalysts for rechargeable Li-O₂ batteries. The as-prepared ZnCo₂O₄ nanoparticles possess a high specific surface area of 127.2 m² g^-1 and a spinel crystalline structure. The Li-O₂ battery utilizing 3DOM ZnCo₂O₄ shows a higher specific capacity of 6024 mAh g^-1 than that with pure Ketjen black (KB). Moreover, the ZnCo₂O₄-based electrode enables much enhanced cyclability with a smaller discharge-recharge voltage gap than that of the carbon-only cathode. Such excellent catalytic performance of ZnCo₂O₄ could be associated with its larger surface area and 3D ordered mesoporous structure.

源语言	英语
页（从-至）	84-87
页数	4
期刊	Materials Letters
卷	158
DOI	https://doi.org/10.1016/j.matlet.2015.06.006
出版状态	已出版 - 10 6月 2015

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10.1016/j.matlet.2015.06.006

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title = "An effective three-dimensional ordered mesoporous ZnCo2O4 as electrocatalyst for Li-O2 batteries",

abstract = "Three-dimensional ordered mesoporous (3DOM) ZnCo2O4 materials have been synthesized via a hard template and used as bifunctional electrocatalysts for rechargeable Li-O2 batteries. The as-prepared ZnCo2O4 nanoparticles possess a high specific surface area of 127.2 m2 g-1 and a spinel crystalline structure. The Li-O2 battery utilizing 3DOM ZnCo2O4 shows a higher specific capacity of 6024 mAh g-1 than that with pure Ketjen black (KB). Moreover, the ZnCo2O4-based electrode enables much enhanced cyclability with a smaller discharge-recharge voltage gap than that of the carbon-only cathode. Such excellent catalytic performance of ZnCo2O4 could be associated with its larger surface area and 3D ordered mesoporous structure.",

keywords = "Electrocatalyst, Lithium-oxygen battery, Metallic composites, Structural",

author = "Pengfa Li and Wang Sun and Qilin Yu and Mengjie Guan and Jinshuo Qiao and Zhenhua Wang and David Rooney and Kening Sun",

year = "2015",

month = jun,

day = "10",

doi = "10.1016/j.matlet.2015.06.006",

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volume = "158",

pages = "84--87",

journal = "Materials Letters",

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T1 - An effective three-dimensional ordered mesoporous ZnCo2O4 as electrocatalyst for Li-O2 batteries

AU - Li, Pengfa

AU - Sun, Wang

AU - Yu, Qilin

AU - Guan, Mengjie

AU - Qiao, Jinshuo

AU - Wang, Zhenhua

AU - Rooney, David

AU - Sun, Kening

PY - 2015/6/10

Y1 - 2015/6/10

N2 - Three-dimensional ordered mesoporous (3DOM) ZnCo2O4 materials have been synthesized via a hard template and used as bifunctional electrocatalysts for rechargeable Li-O2 batteries. The as-prepared ZnCo2O4 nanoparticles possess a high specific surface area of 127.2 m2 g-1 and a spinel crystalline structure. The Li-O2 battery utilizing 3DOM ZnCo2O4 shows a higher specific capacity of 6024 mAh g-1 than that with pure Ketjen black (KB). Moreover, the ZnCo2O4-based electrode enables much enhanced cyclability with a smaller discharge-recharge voltage gap than that of the carbon-only cathode. Such excellent catalytic performance of ZnCo2O4 could be associated with its larger surface area and 3D ordered mesoporous structure.

AB - Three-dimensional ordered mesoporous (3DOM) ZnCo2O4 materials have been synthesized via a hard template and used as bifunctional electrocatalysts for rechargeable Li-O2 batteries. The as-prepared ZnCo2O4 nanoparticles possess a high specific surface area of 127.2 m2 g-1 and a spinel crystalline structure. The Li-O2 battery utilizing 3DOM ZnCo2O4 shows a higher specific capacity of 6024 mAh g-1 than that with pure Ketjen black (KB). Moreover, the ZnCo2O4-based electrode enables much enhanced cyclability with a smaller discharge-recharge voltage gap than that of the carbon-only cathode. Such excellent catalytic performance of ZnCo2O4 could be associated with its larger surface area and 3D ordered mesoporous structure.

KW - Electrocatalyst

KW - Lithium-oxygen battery

KW - Metallic composites

KW - Structural

UR - https://www.scopus.com/pages/publications/84930657837

U2 - 10.1016/j.matlet.2015.06.006

DO - 10.1016/j.matlet.2015.06.006

M3 - Article

AN - SCOPUS:84930657837

SN - 0167-577X

VL - 158

SP - 84

EP - 87

JO - Materials Letters

JF - Materials Letters

ER -

An effective three-dimensional ordered mesoporous ZnCo2O4 as electrocatalyst for Li-O2 batteries

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An effective three-dimensional ordered mesoporous ZnCo₂O₄ as electrocatalyst for Li-O₂ batteries