N- & S-co-doped carbon nanofiber network embedded with ultrafine NiCo nanoalloy for efficient oxygen electrocatalysis and Zn-air batteries

Chaojun Liu; Zhuang Wang; Xin Zong; Yingmin Jin; Dong Li; Yueping Xiong; Gang Wu

doi:10.1039/d0nr01516d

N- & S-co-doped carbon nanofiber network embedded with ultrafine NiCo nanoalloy for efficient oxygen electrocatalysis and Zn-air batteries

Chaojun Liu, Zhuang Wang, Xin Zong, Yingmin Jin, Dong Li, Yueping Xiong, Gang Wu

Department of Energy, Environmental & Chemical Engineering

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

38 Scopus citations

Abstract

A novel 3D N- & S-co-doped carbon nanofiber network embedded with ultrafine NiCo oxide nanoparticles is explored by a facile surfactant-assisted electrospinning method. This catalyst has several structural advantages including ultrafine active sites (2-8 nm), hierarchical pores, and abundant defects, allowing for much higher OER/ORR activity compared to commercial IrO₂ and Pt/C catalysts. The potential gap (ΔE) of OER and ORR metrics for NSCFs/Ni-Co-NiCo₂O is 0.69 V and the Zn-air battery equipped with NSCFs/Ni-Co-NiCo₂O as the air cathode delivers a maximum power density of 171.24 mW cm^-2 at 268 mA cm^-2. Furthermore, the unique structure of the 3D carbon nanofiber network embedded with ultrafine nanoparticles results in superior stability with negligible degradation in activity after 380 h of continuous operation.

Original language	English
Pages (from-to)	9581-9589
Number of pages	9
Journal	Nanoscale
Volume	12
Issue number	17
DOIs	https://doi.org/10.1039/d0nr01516d
State	Published - May 7 2020

Access to Document

10.1039/d0nr01516d

Cite this

@article{eecde638ce594b3b98629da14402ecf7,

title = "N- \& S-co-doped carbon nanofiber network embedded with ultrafine NiCo nanoalloy for efficient oxygen electrocatalysis and Zn-air batteries",

abstract = "A novel 3D N- \& S-co-doped carbon nanofiber network embedded with ultrafine NiCo oxide nanoparticles is explored by a facile surfactant-assisted electrospinning method. This catalyst has several structural advantages including ultrafine active sites (2-8 nm), hierarchical pores, and abundant defects, allowing for much higher OER/ORR activity compared to commercial IrO2 and Pt/C catalysts. The potential gap (ΔE) of OER and ORR metrics for NSCFs/Ni-Co-NiCo2O is 0.69 V and the Zn-air battery equipped with NSCFs/Ni-Co-NiCo2O as the air cathode delivers a maximum power density of 171.24 mW cm-2 at 268 mA cm-2. Furthermore, the unique structure of the 3D carbon nanofiber network embedded with ultrafine nanoparticles results in superior stability with negligible degradation in activity after 380 h of continuous operation.",

author = "Chaojun Liu and Zhuang Wang and Xin Zong and Yingmin Jin and Dong Li and Yueping Xiong and Gang Wu",

note = "Publisher Copyright: {\textcopyright} 2020 The Royal Society of Chemistry.",

year = "2020",

month = may,

day = "7",

doi = "10.1039/d0nr01516d",

language = "English",

volume = "12",

pages = "9581--9589",

journal = "Nanoscale",

issn = "2040-3364",

number = "17",

}

TY - JOUR

T1 - N- & S-co-doped carbon nanofiber network embedded with ultrafine NiCo nanoalloy for efficient oxygen electrocatalysis and Zn-air batteries

AU - Liu, Chaojun

AU - Wang, Zhuang

AU - Zong, Xin

AU - Jin, Yingmin

AU - Li, Dong

AU - Xiong, Yueping

AU - Wu, Gang

PY - 2020/5/7

Y1 - 2020/5/7

N2 - A novel 3D N- & S-co-doped carbon nanofiber network embedded with ultrafine NiCo oxide nanoparticles is explored by a facile surfactant-assisted electrospinning method. This catalyst has several structural advantages including ultrafine active sites (2-8 nm), hierarchical pores, and abundant defects, allowing for much higher OER/ORR activity compared to commercial IrO2 and Pt/C catalysts. The potential gap (ΔE) of OER and ORR metrics for NSCFs/Ni-Co-NiCo2O is 0.69 V and the Zn-air battery equipped with NSCFs/Ni-Co-NiCo2O as the air cathode delivers a maximum power density of 171.24 mW cm-2 at 268 mA cm-2. Furthermore, the unique structure of the 3D carbon nanofiber network embedded with ultrafine nanoparticles results in superior stability with negligible degradation in activity after 380 h of continuous operation.

AB - A novel 3D N- & S-co-doped carbon nanofiber network embedded with ultrafine NiCo oxide nanoparticles is explored by a facile surfactant-assisted electrospinning method. This catalyst has several structural advantages including ultrafine active sites (2-8 nm), hierarchical pores, and abundant defects, allowing for much higher OER/ORR activity compared to commercial IrO2 and Pt/C catalysts. The potential gap (ΔE) of OER and ORR metrics for NSCFs/Ni-Co-NiCo2O is 0.69 V and the Zn-air battery equipped with NSCFs/Ni-Co-NiCo2O as the air cathode delivers a maximum power density of 171.24 mW cm-2 at 268 mA cm-2. Furthermore, the unique structure of the 3D carbon nanofiber network embedded with ultrafine nanoparticles results in superior stability with negligible degradation in activity after 380 h of continuous operation.

UR - https://www.scopus.com/pages/publications/85084379748

U2 - 10.1039/d0nr01516d

DO - 10.1039/d0nr01516d

M3 - Article

C2 - 32315015

AN - SCOPUS:85084379748

SN - 2040-3364

VL - 12

SP - 9581

EP - 9589

JO - Nanoscale

JF - Nanoscale

IS - 17

ER -

N- & S-co-doped carbon nanofiber network embedded with ultrafine NiCo nanoalloy for efficient oxygen electrocatalysis and Zn-air batteries

Abstract

Access to Document

Other files and links

Fingerprint

Cite this