Liquid Metal Electrocatalyst with Ultralow Pt Loading for Ethanol Oxidation.

ABSTRACT: Developing efficient and durable electrocatalysts for ethanol electro-oxidation is crucial for enabling the application of direct ethanol fuel cell technology. Herein, it is demonstrated that Pt-Ga liquid metal-based nanodroplets can serve as an efficient electrocatalyst to drive ethanol oxidation. The mass activity of Pt is significantly improved by alloying with liquid gallium. Guided by machine learning neural networks, a low-concentration alkaline electrolyte is specifically formulated to allow electrodes with ultralow Pt loading to demonstrate remarkable activity toward ethanol oxidation with a mass activity as high as 13.47 A mg^-1 _Pt, which is more than 14 times higher than that of commercial Pt/C electrocatalysts (i.e., 0.76 A mg^-1 _Pt). Co

SUBMITTER: Nazir MH 

PROVIDER: S-EPMC11935015 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature