Journal
NANO LETTERS
Volume 21, Issue 24, Pages 10486-10493Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.1c03981
Keywords
Field-free; magnetic two-dimensional heterostructures; oxygen evolution reaction; magnetic proximity effect
Categories
Funding
- National Natural Science Foundation of China [51871115, 52171213, 51761017, 52061017]
- Project of Academic and Technological Leaders in Jiangxi Province [20204BCJ22036, 20204BCJ23004]
- Natural Science Foundation of Jiangxi Province [20202BABL202021]
Ask authors/readers for more resources
The research shows that by synthesizing 2D air-stable FM Cr2Te3 nanosheets and combining them with anti-ferromagnetic CrOOH, room-temperature ferromagnetism can be achieved in Cr2Te3, thereby improving the OER performance.
Ferromagnetic (FM) electrocatalysts have been demonstrated to reduce the kinetic barrier of oxygen evolution reaction (OER) by spin-dependent kinetics and thus enhance the efficiency fundamentally. Accordingly, FM two-dimensional (2D) materials with unique physicochemical properties are expected to be promising oxygen-evolution catalysts; however, related research is yet to be reported due to their air-instabilities and low Curie temperatures (T-C). Here, based on the synthesis of 2D airstable FM Cr2Te3 nanosheets with a low T-C around 200 K, room-temperature ferromagnetism is achieved in Cr2Te3 by proximity to an anti-ferromagnetic (AFM) CrOOH, demonstrating the accomplishment of long-ranged FM ordering in Cr2Te3 because the magnetic proximity effect stems from paramagnetic (PM)/AFM heterostructure. Therefore, the OER performance can be permanently promoted (without applied magnetic field due to nonvolatile nature of spin) after magnetization. This work demonstrates that a representative PM/AFM 2D heterostructure, Cr2Te3/CrOOH, is expected to be a high-efficient magnetic heterostructure catalysts for oxygen-evolution.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available