Issue 20, 2012

Controlled synthesis and properties of β-Fe2O3 nanosystems functionalized with Ag or Pt nanoparticles

Abstract

β-Fe2O3 nanosystems functionalized with Ag or Pt nanoparticles were synthesized by an innovative two-step procedure, based on the chemical vapor deposition (CVD) of β-iron(III) oxide matrices and the subsequent radio frequency (RF)-sputtering of metal nanoparticles. The system structure, nano-organization and chemical composition were investigated by means of X-ray diffraction (XRD), field emission-scanning electron microscopy (FE-SEM), X-ray photoelectron/X-ray excited-Auger electron spectroscopies (XPS/XE-AES), and secondary ion mass spectrometry (SIMS). High purity nanomaterials based on the scarcely investigated β-Fe2O3 phase, and functionalized by Ag or Pt nanoparticles with tailored dispersion, were successfully obtained. Preliminary gas sensing experiments towards toxic and flammable analytes were carried out in the temperature range 100–400 °C, highlighting interesting results in the detection of H2, CH3CH2OH, and CH3COCH3. The adopted approach can be further optimized to control the diverse morphologies of iron oxide-based materials meeting the demands of a variety of applications.

Graphical abstract: Controlled synthesis and properties of β-Fe2O3 nanosystems functionalized with Ag or Pt nanoparticles

Supplementary files

Article information

Article type
Paper
Submitted
14 Jun 2012
Accepted
18 Jul 2012
First published
18 Jul 2012

CrystEngComm, 2012,14, 6469-6476

Controlled synthesis and properties of β-Fe2O3 nanosystems functionalized with Ag or Pt nanoparticles

G. Carraro, D. Barreca, E. Comini, A. Gasparotto, C. Maccato, C. Sada and G. Sberveglieri, CrystEngComm, 2012, 14, 6469 DOI: 10.1039/C2CE25956G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements