# Boosting Electrooxidation of Ethanol by Nickel Addition to Metallic Glass Ribbon Precursors

## TL;DR

Adding nickel to a metallic glass ribbon improves its ability to catalyze ethanol oxidation, making it more efficient and stable.

## Contribution

Nickel alloying in metallic glass ribbons enhances electrooxidation performance through active site formation and defect presence.

## Key findings

- The CuNiCe-O nanocomposite on the MG ribbon showed improved electrochemical ethanol oxidation reaction (EOR) performance.
- A 3-hour etching time produced the best EOR performance due to abundant active sites and defects in the composite.
- Ni alloying significantly enhanced the catalytic activity and stability of the dealloyed MG ribbon.

## Abstract

A CuNiCe-O nanocomposite was fabricated on the Cu40Ni20Al10Ce26Pt3Ru1 metallic glass (MG) ribbon surface by dealloying. The influences of Ni and dealloying time on the morphology and EOR performance were analyzed. The results suggest that the catalytic activity and stability of the dealloyed MG ribbon could be significantly enhanced owing to the alloying of Ni to the Cu60Al10Ce26Pt3Ru1 MG ribbon precursor. The activated D-Cu40Ni20Al10Ce26Pt3Ru1 ribbon obtained at an etching time of 3 h had a better electrochemical ethanol oxidation reaction (EOR) performance than other dealloyed samples due to the formation of abundant active sites and the presence of defects within the CuNiCe-O composite.