Cellulose nanofibers (CNFs) in the recycling of nickel and cadmium battery metals using electrodeposition.

ABSTRACT: Cellulose nanofibers (CNFs) were employed in the aqueous electrodeposition of nickel and cadmium for battery metal recycling. The electrowinning of mixed Ni-Cd metal ion recycling solutions demonstrated that cadmium with a purity of over 99% could be selectively extracted while leaving the nickel in the solution. Two types of CNFs were evaluated: negatively charged CNFs (a-CNF) obtained through acid hydrolysis (-75 μeq. g^-1) and positively charged CNFs (q-CNF) functionalized with quaternary ammonium groups (+85 μeq. g^-1). The inclusion of CNFs in the Ni-Cd electrolytes induced growth of cm-sized dendrites in conditions where dendrites were otherwise not observed, or increased the degree of dendritic growth when it was already present to a lesser extent. The augmented

SUBMITTER: Hoogendoorn BW 

PROVIDER: S-EPMC10521207 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature