English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Enhancing the Catalytic Activity of Palladium Nanoparticles via Sandwich-Like Confinement by Thin Titanate Nanosheets

Ament, K., Wagner, D. R., Götsch, T., Kikuchi, T., Kröhnert, J., Trunschke, A., et al. (2021). Enhancing the Catalytic Activity of Palladium Nanoparticles via Sandwich-Like Confinement by Thin Titanate Nanosheets. ACS Catalysis, 11(5), 2754-2762. doi:/10.1021/acscatal.1c00031.

Item is

Files

show Files
hide Files
:
acscatal.1c00031.pdf (Publisher version), 3MB
Name:
acscatal.1c00031.pdf
Description:
-
OA-Status:
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
2021
Copyright Info:
The Author(s)

Locators

show

Creators

show
hide
 Creators:
Ament, Kevin, Author
Wagner, Daniel R., Author
Götsch, Thomas1, Author           
Kikuchi, Takayuki, Author
Kröhnert, Jutta1, Author           
Trunschke, Annette1, Author           
Lunkenbein, Thomas1, Author           
Sasaki, Takayoshi, Author
Breu, Josef, Author
Affiliations:
1Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              

Content

show
hide
Free keywords: -
 Abstract: As atomically thin oxide layers deposited on flat (noble) metal surfaces have been proven to have a significant influence on the electronic structure and thus the catalytic activity of the metal, we sought to mimic this architecture at the bulk scale. This could be achieved by intercalating small positively charged Pd nanoparticles of size 3.8 nm into a nematic liquid crystalline phase of lepidocrocite-type layered titanate. Upon intercalation the galleries collapsed and Pd nanoparticles were captured in a sandwichlike mesoporous architecture showing good accessibility to Pd nanoparticles. On the basis of X-ray photoelectron spectroscopy (XPS) and CO diffuse reflectance Fourier transform infrared spectroscopy (DRIFTS) Pd was found to be in a partially oxidized state, while a reduced Ti species indicated an electronic interaction between nanoparticles and nanosheets. The close contact of titanate sandwiching Pd nanoparticles, moreover, allows for the donation of a lattice oxygen to the noble metal (inverse spillover). Due to the metal–support interactions of this peculiar support, the catalyst exhibited the oxidation of CO with a turnover frequency as high as 0.17 s–1 at a temperature of 100 °C.

Details

show
hide
Language(s): eng - English
 Dates: 2021-02-042021-01-042021-03-05
 Publication Status: Published online
 Pages: 9
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: /10.1021/acscatal.1c00031
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: ACS Catalysis
  Abbreviation : ACS Catal.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Washington, DC : ACS
Pages: 9 Volume / Issue: 11 (5) Sequence Number: - Start / End Page: 2754 - 2762 Identifier: ISSN: 2155-5435
CoNE: https://pure.mpg.de/cone/journals/resource/2155-5435