Synthesis of free-standing ternary Rh-Pt-SnO₂-carbon nanotube nanostructures as a highly active and robust catalyst for ethanol oxidation.

ABSTRACT: The rational design of durable materials is an important issue for improving the performance of electrocatalysts towards the ethanol oxidation reaction (EOR). In this work, binderless thin nanostructured layers of SnO₂, Pt, Rh, bilayers of Pt/SnO₂, Rh/Pt and tri-layers of Rh (ca. 10 nm thickness)/PtSnO₂ are directly grown by pulsed laser deposition onto carbon nanotubes (CNTs). SEM analysis shows that CNTs are perfectly coated with the catalysts. The onset potentials of the CO stripping and EOR indicate that Rh/Pt/SnO₂ is the most active for the CO and the EOR. The incorporation of the CNTs in the catalyst layer is outstandingly beneficial to both the catalytic current activity and the durability. Indeed Rh/Pt/SnO₂/CNT delivers

SUBMITTER: Wang H 

PROVIDER: S-EPMC9058560 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature