Spin-state engineering of single-atom cobalt catalysts via carbon nanotube supports enhances catalytic activity

Key Points

• The aim is to enhance the catalytic activity of single-atom cobalt catalysts through spin-state engineering.
• Utilized carbon nanotube supports to modify spin states of cobalt catalysts.
• Measured partial current density and Faradaic efficiency at -0.5 V versus the reversible hydrogen electrode (RHE).
• Achieved a high partial current density with a Faradaic efficiency of over 90% at -0.5 V.
• Demonstrated good stability of the optimized catalyst.