Highly Catalytic Pt Nanoparticles Grown in Two-Dimensional Conducting Polymers at the Air–Water Interface

We report a new approach to the synthesis of uniform, high areal density Pt nanocrystals supported by conducting polymers. The key strategy is the use of ice-templated, two-dimensional polyaniline nanosheets at the air–water interface as a platform for expediting Pt nucleation. Highly crystalline Pt...

Full description

Saved in:
Bibliographic Details
Published in:ACS applied materials & interfaces 2017-09, Vol.9 (36), p.30278-30282
Main Authors: Kim, Kyoungwook, Ahn, Hyungmin, Park, Moon Jeong
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We report a new approach to the synthesis of uniform, high areal density Pt nanocrystals supported by conducting polymers. The key strategy is the use of ice-templated, two-dimensional polyaniline nanosheets at the air–water interface as a platform for expediting Pt nucleation. Highly crystalline Pt nanoparticles with a narrow size distribution of 2.7 ± 0.3 nm and a high electrochemically active surface area of 94.57 m2 g−1 were obtained. Pt NPs were strongly anchored to the polyaniline nanosheets, and demonstrated high current densities, good durability for the methanol oxidation reaction, and excellent carbon monoxide tolerance, all of which are unprecedented. The idea established in this study could be applied to the production of a wide range of other catalysts with enhanced activities.
ISSN:1944-8244
1944-8252
DOI:10.1021/acsami.7b10821