Title | 3D-Printed Hierarchically Micro-Nano-structured NiFe Catalysts for the Stable and Efficient Oxygen Evolution Reaction |
Author | |
Corresponding Author | Hu, Qing; Yang, Xiao Jin |
Publication Years | 2023-03-24
|
DOI | |
Source Title | |
EISSN | 2574-0970
|
Volume | 6Issue:6 |
Abstract | The high overpotential of the oxygen evolution reaction (OER) is the main obstacle to water electrolysis for green hydrogen production. NiFe-based materials are the potential non -precious metal electrocatalysts for the OER, but their poor stability and limited activity have been of concern. Herein, a three-dimensional self-supporting NiFe electrode is prepared by direct writing 3D printing using spherical powders of Ni and Fe metals followed by hydrothermal treatment at 130 degrees C in urea and NH4F mixed solution. The fabricated 3D micro-nano-structured NiFe electrode presents an excellent OER activity of 220 mV overpotential to reach 100 mA cm-2 with a Tafel slope of 49.1 mV dec-1 and stability up to 100 h in continuous or intermittent power supply. The hydrothermal treatment produces in situ growth of flower-like clusters of NiFe2O4 nanoneedles wrapped with FeOOH nanosheets on the surface of the 3D NiFe bimetal microsphere network, and the outstanding OER activity is attributed to a wide variety of interfaces and heterojunctions among metal microspheres, metal oxides, and hydroxides. This study provides an approach for preparing high-performance self-supporting electrodes for electrochemical processes. |
Keywords | |
URL | [Source Record] |
Indexed By | |
Language | English
|
SUSTech Authorship | Corresponding
|
Funding Project | Fundamental Research Funds for the Central Universities[JD2212]
|
WOS Research Area | Science & Technology - Other Topics
; Materials Science
|
WOS Subject | Nanoscience & Nanotechnology
; Materials Science, Multidisciplinary
|
WOS Accession No | WOS:000957956900001
|
Publisher | |
Data Source | Web of Science
|
Citation statistics |
Cited Times [WOS]:0
|
Document Type | Journal Article |
Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/524032 |
Department | School of Environmental Science and Engineering |
Affiliation | 1.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China 2.Beijing Univ Chem Technol, Natl Fundamental Res Lab New Hazardous Chem Assess, Beijing 100029, Peoples R China 3.Beijing Univ Chem Technol, Coll Mech & Elect Engn, Beijing 100029, Peoples R China 4.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China 5.Beijing Huanding Environm Big Data Inst, Beijing 100083, Peoples R China |
Corresponding Author Affilication | School of Environmental Science and Engineering |
Recommended Citation GB/T 7714 |
Zhou, Bo,Tang, Yang,Jiao, Zhiwei,et al. 3D-Printed Hierarchically Micro-Nano-structured NiFe Catalysts for the Stable and Efficient Oxygen Evolution Reaction[J]. ACS APPLIED NANO MATERIALS,2023,6(6).
|
APA |
Zhou, Bo,Tang, Yang,Jiao, Zhiwei,Wan, Pingyu,Hu, Qing,&Yang, Xiao Jin.(2023).3D-Printed Hierarchically Micro-Nano-structured NiFe Catalysts for the Stable and Efficient Oxygen Evolution Reaction.ACS APPLIED NANO MATERIALS,6(6).
|
MLA |
Zhou, Bo,et al."3D-Printed Hierarchically Micro-Nano-structured NiFe Catalysts for the Stable and Efficient Oxygen Evolution Reaction".ACS APPLIED NANO MATERIALS 6.6(2023).
|
Files in This Item: | There are no files associated with this item. |
|
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment