Nanoporous Fe and Co Dually Doped Carbon Nanotube-Based Oxygen Electrocatalysts for Efficient Zinc–Air Batteries

Chaoyang Liu; Shang Wu; Shuo Tian; Jincai Yang; Jiankun Li; Xin Wang; Lihong Wang; Chen Chen; Ping Zhang; Quanlu Yang

doi:10.1021/acsanm.4c02088

journal article·2024-06-14

Nanoporous Fe and Co Dually Doped Carbon Nanotube-Based Oxygen Electrocatalysts for Efficient Zinc–Air Batteries

Chaoyang Liu, Shang Wu, Shuo Tian, Jincai Yang, Jiankun Li, Xin Wang, Lihong Wang, Chen Chen, Ping Zhang, Quanlu Yang

ACS Applied Nano Materials· Volume 7· Issue 11

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Source abstract

Abstract

The development of bifunctional electrocatalysts to overcome the slow kinetics of the oxygen reduction–evolution reaction (ORR/OER) remains a significant challenge. Therefore, combined with morphology control engineering and bimetallic doping strategies, Fe and Co bimetals are effectively doped into carbon nanotube-coated three-dimensional porous materials, and a cost-effective bifunctional oxygen-electrode material is successfully prepared. The synthesized Fe 25 –NZ8@Co 500 -CN catalysts show high electrocatalytic activity in both ORR ( E 1/2 = 0.85 V) and OER (η j=10 = 350 mV). Furthermore, the zinc-air battery is assembled with the Fe 25 –NZ8@Co 500 -CN catalyst as the air electrode, which has an excellent power density of 183.65 mW cm –2, a specific capacity of 699.2 mA h g Zn –1, and a long-term stability of 200 h. This newly synthesized bimetallic-doped catalyst offers a design option for oxygen electrocatalysts in zinc–air batteries.

Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage Nanomaterials Catalysis & surfaces

OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced battery technologies research · Supercapacitor Materials and Fabrication

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, Gansu Province Research Center for Basic Sciences of Surface and Interface Chemistry, College of Chemical Engineering, Northwest Minzu University, Lanzhou 730124, China

College of Chemical Engineering, Lanzhou University of Arts and Science, Beimiantan 400, Lanzhou, Gansu 730000, China

Funding

Northwest Minzu University · Science and Technology Department of Gansu Province · Fundamental Research Funds for the Central Universities · Natural Science Foundation of Gansu Province · Key laboratory for Utility of Environmentally Friendly Composite Materials and Biomass, Northwest Minzu University

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