Enhanced catalytic activity of self-assembled-monolayer-capped gold nanoparticles

Tomoya Taguchi; Katsuhiro Isozaki; Kazushi Miki

doi:10.1002/adma.201202979

Enhanced catalytic activity of self-assembled-monolayer-capped gold nanoparticles

Adv Mater. 2012 Dec 18;24(48):6462-7. doi: 10.1002/adma.201202979. Epub 2012 Sep 12.

Authors

Tomoya Taguchi¹, Katsuhiro Isozaki, Kazushi Miki

Affiliation

¹ Polymer Materials Unit, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan; Department of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan.

PMID: 22968900
DOI: 10.1002/adma.201202979

Abstract

An unprecedented substrate-selective catalytic enhancement effect of an alkanethiol-self-assembled monolayer (SAM) on Au nanoparticles (AuNPs) is reported. In the supported 2D-array of AuNPs, the alkanethiol-SAM acts as a protein-like soft reaction space in which the substrate molecules are encapsulated through non-covalent intermolecular hydrophobic interactions, and thus catalytic reactions are accelerated at AuNP surfaces.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Alkanes / chemistry*
Catalysis
Gold / chemistry*
Metal Nanoparticles / chemistry*
Molecular Structure
Particle Size
Silanes / chemical synthesis
Silanes / chemistry
Sulfhydryl Compounds / chemistry*
Surface Properties

Substances

Alkanes
Silanes
Sulfhydryl Compounds
Gold