MoS2/nitrogen-doped graphene as efficient electrocatalyst for oxygen reduction reaction

Kai Zhao; Wei Gu; Longyun Zhao; Cuiling Zhang; Weidong Peng; Yuezhong Xian

doi:10.1016/j.electacta.2015.04.044

MoS₂/nitrogen-doped graphene as efficient electrocatalyst for oxygen reduction reaction

Kai Zhao
, Wei Gu
, Longyun Zhao
, Cuiling Zhang^*
, Weidong Peng
, Yuezhong Xian

^*Corresponding author for this work

School of Chemistry and Molecular Engineering

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

76 Scopus citations

Abstract

Abstract A simple yet effective strategy was developed to generate a non-precious oxygen electrode electrocatalyst of MoS₂/nitrogen-doped graphene (NG) by physical mixing MoS₂ sheets with NG. The micrometer-sized MoS₂ sheets were obtained through ultrasonication exfoliation of the bulk MoS₂, only showing little oxygen reduction reaction (ORR) activity. MoS₂/NG hybrid was obtained by loading MoS₂ sheets onto NG through ultrasonication, and the resulting nanocomposites exhibited improved electrocatalytic activity for ORR with dominant 4 electron pathway in alkaline solutions. The exposed active edges as well as the synergistic effect and reduced resistance connection jointly make the MoS₂/NG composite a highly competitive ORR catalyst.

Original language	English
Article number	24797
Pages (from-to)	142-149
Number of pages	8
Journal	Electrochimica Acta
Volume	169
DOIs	https://doi.org/10.1016/j.electacta.2015.04.044
State	Published - 1 Jul 2015
Externally published	Yes

Keywords

Composite
Electrocatalyst
MoS sheets
Nitrogen-doped graphene
Oxygen reduction reaction

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10.1016/j.electacta.2015.04.044

Cite this

@article{f3deb55661a643ccbfba8199a2aef6d8,

title = "MoS2/nitrogen-doped graphene as efficient electrocatalyst for oxygen reduction reaction",

abstract = "Abstract A simple yet effective strategy was developed to generate a non-precious oxygen electrode electrocatalyst of MoS2/nitrogen-doped graphene (NG) by physical mixing MoS2 sheets with NG. The micrometer-sized MoS2 sheets were obtained through ultrasonication exfoliation of the bulk MoS2, only showing little oxygen reduction reaction (ORR) activity. MoS2/NG hybrid was obtained by loading MoS2 sheets onto NG through ultrasonication, and the resulting nanocomposites exhibited improved electrocatalytic activity for ORR with dominant 4 electron pathway in alkaline solutions. The exposed active edges as well as the synergistic effect and reduced resistance connection jointly make the MoS2/NG composite a highly competitive ORR catalyst.",

keywords = "Composite, Electrocatalyst, MoS sheets, Nitrogen-doped graphene, Oxygen reduction reaction",

author = "Kai Zhao and Wei Gu and Longyun Zhao and Cuiling Zhang and Weidong Peng and Yuezhong Xian",

year = "2015",

month = jul,

day = "1",

doi = "10.1016/j.electacta.2015.04.044",

language = "英语",

volume = "169",

pages = "142--149",

journal = "Electrochimica Acta",

issn = "0013-4686",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - MoS2/nitrogen-doped graphene as efficient electrocatalyst for oxygen reduction reaction

AU - Zhao, Kai

AU - Gu, Wei

AU - Zhao, Longyun

AU - Zhang, Cuiling

AU - Peng, Weidong

AU - Xian, Yuezhong

PY - 2015/7/1

Y1 - 2015/7/1

N2 - Abstract A simple yet effective strategy was developed to generate a non-precious oxygen electrode electrocatalyst of MoS2/nitrogen-doped graphene (NG) by physical mixing MoS2 sheets with NG. The micrometer-sized MoS2 sheets were obtained through ultrasonication exfoliation of the bulk MoS2, only showing little oxygen reduction reaction (ORR) activity. MoS2/NG hybrid was obtained by loading MoS2 sheets onto NG through ultrasonication, and the resulting nanocomposites exhibited improved electrocatalytic activity for ORR with dominant 4 electron pathway in alkaline solutions. The exposed active edges as well as the synergistic effect and reduced resistance connection jointly make the MoS2/NG composite a highly competitive ORR catalyst.

AB - Abstract A simple yet effective strategy was developed to generate a non-precious oxygen electrode electrocatalyst of MoS2/nitrogen-doped graphene (NG) by physical mixing MoS2 sheets with NG. The micrometer-sized MoS2 sheets were obtained through ultrasonication exfoliation of the bulk MoS2, only showing little oxygen reduction reaction (ORR) activity. MoS2/NG hybrid was obtained by loading MoS2 sheets onto NG through ultrasonication, and the resulting nanocomposites exhibited improved electrocatalytic activity for ORR with dominant 4 electron pathway in alkaline solutions. The exposed active edges as well as the synergistic effect and reduced resistance connection jointly make the MoS2/NG composite a highly competitive ORR catalyst.

KW - Composite

KW - Electrocatalyst

KW - MoS sheets

KW - Nitrogen-doped graphene

KW - Oxygen reduction reaction

UR - https://www.scopus.com/pages/publications/84927759780

U2 - 10.1016/j.electacta.2015.04.044

DO - 10.1016/j.electacta.2015.04.044

M3 - 文章

AN - SCOPUS:84927759780

SN - 0013-4686

VL - 169

SP - 142

EP - 149

JO - Electrochimica Acta

JF - Electrochimica Acta

M1 - 24797

ER -

MoS₂/nitrogen-doped graphene as efficient electrocatalyst for oxygen reduction reaction

Abstract

Keywords

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