The study presents a unique design of catalysts for a new class of meta-gas batteries that can benefit carbon-neutral goals.
Nevertheless, metal-CO2 batteries still experience slow reaction kinetics. This results in large over-potential , poor reversibility, low energy efficiency, and inadequate cycling stability. Related Stories“But we found preparing novel catalysts with unconventional phases to be a feasible and promising strategy to boost the energy efficiency and performance of metal-gas batteries, especially since traditional modification strategies for catalysts have encountered long-term technical hurdles,” Dr. Fan Zhanxi added.
Dr Fan Zhanxi, Study Lead and Assistant Professor, Department of Chemistry, City University of Hong Kong Outstanding Performance of Unconventional Phase Metal Nanomaterials The combination of theoretical calculations and experiments carried out by the researchers exposed that 4H/fcc Ir nanostructures formed through phase engineering are more promising for the reversible development of amorphous/low-crystalline discharge items, thereby minimizing the overpotential and boosting the cycling steadiness of electrochemical redox reactions.
Dr Fan Zhanxi, Study Lead and Assistant Professor, Department of Chemistry, City University of Hong Kong