Published February 2016 | Version v1
Journal article Metadata-only

X-ray photoelectron spectroscopy as a probe of the interaction between rhodium acetate and ionic liquids

Creators

  • 1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016 (China)
  • 2. School of Chemistry, The University of Nottingham, Nottingham NG7 2RD (United Kingdom)
  • 3. School of Material Science and Engineering, Shenyang Ligong University, Shenyang 110159 (China)
  • 4. School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004 (China)

Description

Highlights: • X-ray photoelectron spectroscopy is used as a probe of the interaction between rhodium acetate and ionic liquids. • The measured Rh 3d binding energies of rhodium acetate dissolved in a series of ionic liquids were found to decrease along with the increasing of the basicity of anions. • The reduction of Rh(II) to Rh(0) in 1-octyl-3methylimidazolium acetate was monitored by XPS. • The intensity of the metallic Rh(0) peak was found increased along with time. The surface enrichment of the new formed Rh(0) species was also concluded. X-ray photoelectron spectroscopy (XPS) is used as a probe of the interaction between rhodium acetate ([Rh2(OAc)4]) and ionic liquids. Due to the impact of the anion of ionic liquids on the electronic environment of the rhodium centre, the measured Rh 3d binding energies of [Rh2(OAc)4] dissolved in a series of ionic liquids were found to decrease along with the increasing of the basicity of anions. The reduction of Rh(II) to Rh(0) in 1-octyl-3methylimidazolium acetate ([C8C1Im][OAc]) under UHV condition was monitored by XPS. The intensity of the new formed metallic Rh(0) peak was found increased along with time. The surface enrichment of the new formed Rh(0) species in the system was also concluded.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.cplett.2016.01.020

Additional details

Identifiers

DOI
10.1016/j.cplett.2016.01.020;
PII
S0009261416000336;

Publishing Information

Journal Title
Chemical Physics Letters
Journal Volume
646
Journal Page Range
p. 125-129
ISSN
0009-2614
CODEN
CHPLBC

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
51123501
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S74: ATOMIC AND MOLECULAR PHYSICS;
Descriptors DEI
ACETATES; ANIONS; AUGMENTATION; BINDING ENERGY; IMIDAZOLES; INTERACTIONS; MOLTEN SALTS; PROBES; RHODIUM; X-RAY PHOTOELECTRON SPECTROSCOPY; X-RAY SPECTROSCOPY
Descriptors DEC
AZOLES; CARBOXYLIC ACID SALTS; CHARGED PARTICLES; ELECTRON SPECTROSCOPY; ELEMENTS; ENERGY; HETEROCYCLIC COMPOUNDS; IONS; METALS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; PHOTOELECTRON SPECTROSCOPY; PLATINUM METALS; REFRACTORY METALS; SALTS; SPECTROSCOPY; TRANSITION ELEMENTS

Optional Information

Copyright
Copyright (c) 2016 Elsevier B.V. All rights reserved.