English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
 Local TagsRelease HistoryDetailsSummary
  Anaerobic Alcohol Conversion to Carbonyl Compounds over Nanoscaled Rh-Doped SrTiO3 under Visible Light

Zhao, G., Busser, G. W., Fröse, C. M., Hu, B., Bonke, S. A., Schnegg, A., et al. (2019). Anaerobic Alcohol Conversion to Carbonyl Compounds over Nanoscaled Rh-Doped SrTiO3 under Visible Light. The Journal of Physical Chemistry Letters, 10(9), 2075-2080. doi:10.1021/acs.jpclett.9b00621.

Item is

 

show all hide all

Basic

show hide
Item Permalink: https://hdl.handle.net/21.11116/0000-0006-79AB-2 Version Permalink: https://hdl.handle.net/21.11116/0000-0006-79B6-5
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Zhao, Guixia, Author
Busser, G. Wilma, Author
Fröse, Christian Michael1, Author           
Hu, Bin, Author
Bonke, Shannon A.1, Author           
Schnegg, Alexander1, Author           
Ai, Yuejie, Author
Wei, Dongli, Author
Wang, Xiangke, Author
Peng, Baoxiang2, Author           
Muhler, Martin2, Author           
Affiliations:
1Research Department DeBeer, Max Planck Institute for Chemical Energy Conversion, Max Planck Society, ou_3023871              
2Research Department Schlögl, Max Planck Institute for Chemical Energy Conversion, Max Planck Society, ou_3023874              

Content

show
hide
Free keywords: -
 Abstract: Photocatalytic oxidation of organic compounds on semiconductors provides a mild approach for organic synthesis and solar energy utilization. Herein, we identify the key points for the photocatalytic oxidation over Pt-loaded Rh-doped strontium titanate allowing the conversion of alcohols efficiently and selectively to aldehydes and ketones under anaerobic conditions and visible light with an apparent quantum efficiency of pure benzyl alcohol oxidation at 420 nm of <= 49.5%. Mechanistic investigations suggest that thermodynamically the controlled valence band edge position via Rh doping provides a suitable oxidation ability of photogenerated holes, avoiding the powerful hydroxyl radical intermediates prone to overoxidation resulting in high selectivity. Kinetically, oxygen vacancies induced by Rh3+ substitution in the SrTiO3 lattice not only favor the dissociative adsorption of alcohols yielding alkoxy species but also induce the weakening of the alpha-C-H bond facilitating its cleavage by the photogenerated holes. Pt nanoparticles deposited as a cocatalyst contribute to the final hydrogen evolution.

Details

show
hide
Language(s): eng - English
 Dates: 2019
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: ISI: 000466991300009
DOI: 10.1021/acs.jpclett.9b00621
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: The Journal of Physical Chemistry Letters
  Alternative Title : J. Phys. Chem. Lett.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 10 (9) Sequence Number: - Start / End Page: 2075 - 2080 Identifier: ISSN: 1948-7185