High-Temperature Nitridation Induced Carbon Nanotubes@NiFe-Layered-Double-Hydroxide Nanosheets Taking as an Oxygen Evolution Reaction Electrocatalyst for CO2 Electroreduction

Chen, Hao and Zhang, Ping and Xie, Ruishi and Xiong, Ying and Jia, Chunhui and Fu, Yingke and Song, Pingan ORCID: https://orcid.org/0000-0003-1082-652X and Chen, Lin and Zhang, Yaping and Liao, Ting (2021) High-Temperature Nitridation Induced Carbon Nanotubes@NiFe-Layered-Double-Hydroxide Nanosheets Taking as an Oxygen Evolution Reaction Electrocatalyst for CO2 Electroreduction. Advanced Materials Interfaces, 8 (19):2101165. pp. 1-9.


Abstract

The development of high-efficiency catalysts for carbon dioxide reduction reaction (CO2RR) and oxygen evolution reactions (OER) is an important strategy to solve the current energy crisis. In this paper, solid-phase exfoliation and electrostatic self-assembly strategies are developed to couple ultrathin NiFe-layered-double-hydroxide nanosheets and carbon nanotubes (CNT@NiFe-LDH NS) as an OER catalyst. Then, NiFe nanoparticles anchored on the N-doped CNT (CNT-N-NiFe) for electrocatalyst of CO2RR is synthesized via pyrolysis of a mixture of CNT@NiFe-LDH NS and melamine in a nitrogen atmosphere at 750 °C, utilizing the ultrathin NiFe-LDH NS as a metal source and CNT as the framework. CNT@NiFe-LDH NS nanohybrid exhibits a better catalytic activity for OER (with an overpotential of 270 mV at the current density of 20 mA cm–2 and remarkably stable durability) than Bulk NiFe-LDH in 1 m KOH. Moreover, the CNT-N-NiFe catalyst exhibits a Faradaic efficiency of ≈82.6% for the reduction of CO2 to CO at −0.7 V (vs reversible hydrogen electrode) with a current density of CO 10.2 mA cm–2. The method of preparing CO2RR catalysts provides a new idea of the preparation of bimetallic CO2RR electrocatalysts.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Date Deposited: 29 Nov 2021 03:09
Last Modified: 01 Dec 2021 01:59
Uncontrolled Keywords: Carbon dioxide reduction; Electrostatic self assembly; Faradaic efficiencies; High-efficiency catalysts; High-temperature nitridation; Layered double hydroxide nanosheets; Oxygen evolution reaction (oer); Reversible hydrogen electrodes
Fields of Research (2008): 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
Fields of Research (2020): 40 ENGINEERING > 4016 Materials engineering > 401602 Composite and hybrid materials
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences
Socio-Economic Objectives (2020): 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280105 Expanding knowledge in the chemical sciences
28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280110 Expanding knowledge in engineering
Identification Number or DOI: https://doi.org/10.1002/admi.202101165
URI: http://eprints.usq.edu.au/id/eprint/44067

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