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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