Work

Salt template synthesis of CoO@Co nanoparticles encapsulated in 3D porous nitrogen‐doped carbon for oxygen reduction reaction

Year: 2024

Type: article

Abstract: Developing high performance and cost‐effective electrocatalysts toward oxygen reduction reaction (ORR) is of critical significance for fuel cells and metal–air batteries. Herein, CoO@Co nanoparticles encapsulated in three‐dimensional (3D) porous nitrogen‐doped carbon (CoO@Co/Co‐N‐C) have been successfully derived from the cobalt–tannin framework via the NH 4 Cl salt template strategy. Owing to the generated NH 3 and HCl gas from NH 4 Cl during the pyrolysis process, CoO@Co/Co‐N‐C formed a 3D porous carbon architecture with ultrahigh‐specific surface area (1052.5 m 2 g −1 ). This hybrid catalyst exhibits comparable ORR catalytic activity, as well as superior stability to 20 wt% Pt/C in alkaline conditions. This finding offers a novel and facile strategy to synthesize 3D porous carbon as non‐precious metal electrocatalysts for energy conversion and storage applications.

Source: cMat

DOI: 10.1002/cmt2.32

Authors: Yao Zhang, Jing‐Ya Song, Jun‐Die Hu, Lv‐Fei Liu, Chun‐Mei Zhang, Jing‐Sha Li

Institutions: Suzhou University of Science and Technology, Changsha Mining and Metallurgy Research Institute (China)

Language: English

Topic: Electrocatalysts for Energy Conversion

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: diamond

Funder: National Natural Science Foundation of China