Facile Synthesis of Fe‐Doped CoO Nanotubes as High‐Efficient Electrocatalysts for Oxygen Evolution Reaction

SMALL STRUCTURES - Tập 3 Số 4 - 2022
Fan Tang1, Sijie Guo2,3, Yonggang Sun2, Xi-Jie Lin1, Jianhua Qiu1, Amin Cao2,3
1School of Chemistry and Pharmaceutical Sciences Guangxi Normal University Guilin 541004 P. R. China
2CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, P.R. China
3School of Chemical Sciences University of Chinese Academy of Sciences (UCAS) Beijing 100049 P. R. China

Tóm tắt

Developing high‐performance, low‐cost, and robust electrocatalysts is of great importance to boost the efficiency of oxygen evolution reaction (OER). Herein, based on the integrated design of chemical composition and geometric structure, Fe‐doped CoO nanotubes (NTs) with high OER activity are prepared by a facile template‐free approach. The construction of this tubular structure is realized via a simple wet‐chemical reaction to prepare solid nanorods as precursor and a subsequent calcination treatment of the precursor to form hollow cavity. The favorable composition and unique hollow structure endow these Fe‐doped CoO NTs with remarkable activity toward OER. When used as the electrocatalyst for OER, the Fe‐doped CoO NTs show a small overpotential of 282 mV at the current density of 10 mA cm−2, a low Tafel slope of 78.26 mV dec−1, and a high turnover frequency of 0.0965 s−1 at the overpotential of 282 mV, which is superior to those of CoO NTs and solid CoO nanoparticles. Moreover, the Fe‐doped CoO NTs also exhibit excellent long‐term stability of 24 h at the current density of 10 mA cm−2.

Từ khóa


Tài liệu tham khảo

10.1021/acssuschemeng.0c07169

10.1021/acssuschemeng.0c07890

10.1021/ja200559j

10.1002/adfm.201502217

10.1002/anie.201701531

10.1007/s12274-014-0591-z

10.1016/j.nanoen.2017.05.022

10.1039/C4CS00470A

Du H., 2021, Appl. Surf. Sci., 541, 14821

10.1021/acs.jpcc.5b11868

10.1021/jacs.6b05190

10.1007/s12274-015-0950-4

10.1021/acscatal.8b02504

10.1039/C8EE02495B

10.1016/j.jallcom.2020.155560

10.1002/advs.201801632

10.1038/nmat3313

10.1002/adma.201802912

10.1016/j.ijhydene.2021.06.080

10.1016/j.cplett.2017.01.040

10.1039/C4DT03803G

10.1039/C5TA00494B

10.1021/am401330g

10.1021/jacs.6b00773

10.1039/C8CC06650G

10.1016/j.jallcom.2021.162611

10.1016/j.jallcom.2021.160279

10.1016/j.nanoen.2018.10.032

10.1016/j.ijhydene.2013.12.186

10.1016/j.susmat.2021.e00293

10.1002/adfm.202009197

10.1002/smll.202003824

10.1002/cssc.202002788

10.1016/j.apsusc.2019.144680

10.1039/C8CC09140D

10.1039/D0QI00385A

Zhao G., 2018, Adv. Funct. Mater., 28, 1803191

10.1016/j.jssc.2021.122156

10.1002/adfm.202101239

10.1073/pnas.2023421118

10.1039/D0CS00962H

Thông tin
Thông tin xuất bản

SMALL STRUCTURES

Tập 3 Số 4

Thông tin tác giả