Searching for specific methods to make better use of the existing catalysts plays a significant role in achieving superior electrocatalytic performance. Herein, cellulose nanofibrils (CNF), featuring abundant carboxyls and hydroxyls, was employed to deposit cobalt (Co2+) and iron (Fe3+) ions. The Co2+ and Fe3+ ions were dispersed homogeneously and avoided idiopathic aggregation. The generated CoFe nanoparticles were in a well-aligned arrangement on the CNF nanocarbon. Benefiting from this unique structure, active sites were exposed and their ca...
