Open Access

ARTICLE

Facile Preparation of Fe–N–C Oxygen Reduction Electrocatalysts from Metal Organic Frameworks for Zn-Air Battery

Chengcheng Wang^1,2,*, Dawei Luo¹, Bingxue Hou³, Mortaza Gholizadeh⁴, Zanxiong Tan¹, Xiaojie Han¹

1 Shenzhen Polytechnic, Shenzhen, China
2 Key Laboratory of Energy Conversion and Storage Technologies (Southern University of Science and Technology), Ministry of Education Shenzhen, Shenzhen, China
3 Aviation Engineering Institute, Civil Aviation Flight University of China, Guanghan, China
4 Faculty of Chemical and Petroleum Engineering, University of Tabriz, Tabriz, Iran

* Corresponding Author: Chengcheng Wang. Email:

(This article belongs to the Special Issue: Advanced Renewable Energy Storage Materials and Their Composite: Preparation, Characterization and Applications)

Journal of Renewable Materials 2022, 10(5), 1337-1348. https://doi.org/10.32604/jrm.2022.018770

Received 16 August 2021; Accepted 18 September 2021; Issue published 22 December 2021

Abstract

It is critical to study efficient, stable oxygen reduction reaction (ORR) electrocatalysts due to insufficient stability and expensive price of Pt/C catalysts for Zn-air batteries. Fe–N–C electrocatalysts was synthesized by a facile solvent-green method and the efficiency of Fe–N–C optimized was studied as potential ORR electrocatalysts under alkaline condition. Results indicated that it had excellent ORR activity with E_1/2 of 0.93 V, which was competitive to that of Pt/C-JM under the same conditions. Moreover, the assembled Zn-air battery exhibited discharge potential and charge potential of 1.2 V, 2.32 V at 5 mA cm⁻² with high stability, respectively. Overall, all results illustrated that Fe–N–C is an excellent ORR electrocatalyst in the field of metal air battery. Additionally, this work opens a good way to synthesize highly efficient electrocatalysts from metal organic framework and to investigate ORR mechanism of efficient chemical energy to electricity conversion.

---

Graphic Abstract

---

Keywords

---