Template-assisted synthesis of iron–nitrogen co-doped carbon hollow nanospheres for efficient oxygen reduction reaction

Ke Qin; Zhenye Zhu; Fei Xiang Ma; Jiaheng Zhang

doi:10.1016/j.jelechem.2022.116021

Template-assisted synthesis of iron–nitrogen co-doped carbon hollow nanospheres for efficient oxygen reduction reaction

Ke Qin
, Zhenye Zhu^*
, Fei Xiang Ma
, Jiaheng Zhang

^*Corresponding author for this work

Harbin Institute of Technology (Shenzhen)

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

8 Scopus citations

Abstract

Single atomic metal[sbnd]N[sbnd]C materials are the most promising candidates to replace platinum-group-metal (PGM) catalysts for the oxygen reduction reaction (ORR), and show a broad application prospect in long-life rechargeable Zn-air batteries. Iron-nitrogen co-doped carbon hollow nanospheres (Fe[sbnd]N[sbnd]C/HSs) were fabricated via the self-polymerization of dopamine coated on removable SiO₂ nanospheres and spontaneous chelation of Fe³⁺ ions, followed by rational pyrolysis and template removal processes. Benefitted from unique micropores hollow structures and highly exposed Fe-Nx active sites, the relevant Fe[sbnd]N[sbnd]C/HSs exhibited satisfied oxygen reduction performance (e.g. half-wave potential: 0.87 V), endowing the Fe[sbnd]N[sbnd]C/HSs assembled Zinc-air battery delivering a high power density of 157 mW cm⁻² and large specific capacity of 805 mA h g⁻¹.

Original language	English
Article number	116021
Journal	Journal of Electroanalytical Chemistry
Volume	906
DOIs	https://doi.org/10.1016/j.jelechem.2022.116021
State	Published - 1 Feb 2022
Externally published	Yes

Keywords

Dopamine
Fe[sbnd]N[sbnd]C/HSs
Hollow structures
Oxygen reduction reaction
Zinc-air batteries

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10.1016/j.jelechem.2022.116021

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title = "Template-assisted synthesis of iron–nitrogen co-doped carbon hollow nanospheres for efficient oxygen reduction reaction",

abstract = "Single atomic metal[sbnd]N[sbnd]C materials are the most promising candidates to replace platinum-group-metal (PGM) catalysts for the oxygen reduction reaction (ORR), and show a broad application prospect in long-life rechargeable Zn-air batteries. Iron-nitrogen co-doped carbon hollow nanospheres (Fe[sbnd]N[sbnd]C/HSs) were fabricated via the self-polymerization of dopamine coated on removable SiO2 nanospheres and spontaneous chelation of Fe3+ ions, followed by rational pyrolysis and template removal processes. Benefitted from unique micropores hollow structures and highly exposed Fe-Nx active sites, the relevant Fe[sbnd]N[sbnd]C/HSs exhibited satisfied oxygen reduction performance (e.g. half-wave potential: 0.87 V), endowing the Fe[sbnd]N[sbnd]C/HSs assembled Zinc-air battery delivering a high power density of 157 mW cm−2 and large specific capacity of 805 mA h g−1.",

keywords = "Dopamine, Fe[sbnd]N[sbnd]C/HSs, Hollow structures, Oxygen reduction reaction, Zinc-air batteries",

author = "Ke Qin and Zhenye Zhu and Ma, \{Fei Xiang\} and Jiaheng Zhang",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

month = feb,

day = "1",

doi = "10.1016/j.jelechem.2022.116021",

language = "英语",

volume = "906",

journal = "Journal of Electroanalytical Chemistry",

issn = "1572-6657",

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TY - JOUR

T1 - Template-assisted synthesis of iron–nitrogen co-doped carbon hollow nanospheres for efficient oxygen reduction reaction

AU - Qin, Ke

AU - Zhu, Zhenye

AU - Ma, Fei Xiang

AU - Zhang, Jiaheng

PY - 2022/2/1

Y1 - 2022/2/1

N2 - Single atomic metal[sbnd]N[sbnd]C materials are the most promising candidates to replace platinum-group-metal (PGM) catalysts for the oxygen reduction reaction (ORR), and show a broad application prospect in long-life rechargeable Zn-air batteries. Iron-nitrogen co-doped carbon hollow nanospheres (Fe[sbnd]N[sbnd]C/HSs) were fabricated via the self-polymerization of dopamine coated on removable SiO2 nanospheres and spontaneous chelation of Fe3+ ions, followed by rational pyrolysis and template removal processes. Benefitted from unique micropores hollow structures and highly exposed Fe-Nx active sites, the relevant Fe[sbnd]N[sbnd]C/HSs exhibited satisfied oxygen reduction performance (e.g. half-wave potential: 0.87 V), endowing the Fe[sbnd]N[sbnd]C/HSs assembled Zinc-air battery delivering a high power density of 157 mW cm−2 and large specific capacity of 805 mA h g−1.

AB - Single atomic metal[sbnd]N[sbnd]C materials are the most promising candidates to replace platinum-group-metal (PGM) catalysts for the oxygen reduction reaction (ORR), and show a broad application prospect in long-life rechargeable Zn-air batteries. Iron-nitrogen co-doped carbon hollow nanospheres (Fe[sbnd]N[sbnd]C/HSs) were fabricated via the self-polymerization of dopamine coated on removable SiO2 nanospheres and spontaneous chelation of Fe3+ ions, followed by rational pyrolysis and template removal processes. Benefitted from unique micropores hollow structures and highly exposed Fe-Nx active sites, the relevant Fe[sbnd]N[sbnd]C/HSs exhibited satisfied oxygen reduction performance (e.g. half-wave potential: 0.87 V), endowing the Fe[sbnd]N[sbnd]C/HSs assembled Zinc-air battery delivering a high power density of 157 mW cm−2 and large specific capacity of 805 mA h g−1.

KW - Dopamine

KW - Fe[sbnd]N[sbnd]C/HSs

KW - Hollow structures

KW - Oxygen reduction reaction

KW - Zinc-air batteries

UR - https://www.scopus.com/pages/publications/85122641585

U2 - 10.1016/j.jelechem.2022.116021

DO - 10.1016/j.jelechem.2022.116021

M3 - 文章

AN - SCOPUS:85122641585

SN - 1572-6657

VL - 906

JO - Journal of Electroanalytical Chemistry

JF - Journal of Electroanalytical Chemistry

M1 - 116021

ER -

Template-assisted synthesis of iron–nitrogen co-doped carbon hollow nanospheres for efficient oxygen reduction reaction

Abstract

Keywords

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