FTIS Observation of Twin Adsorbates of CO on Rh Electrode in Acid Solution

Authors

Wenfeng Lin, State Key Laboratory for Physical Chemistry of the Solid Surface, Department of Chemistry, Xiamen University, Xiamen 361005
Shigang Sun, State Key Laboratory for Physical Chemistry of the Solid Surface, Department of Chemistry, Xiamen University, Xiamen 361005

Abstract

Because of its great importance both in electrocatalysis and C1 chemistry applications, the adsorption of CO on metallic electrodes such as Pt, Pd, Au, Ag, RhF, etc. has been extensively studied by in situ infrared spectroscopy Since 1981. In all these studies only three types of CO adsorbates, i. e., linear (2090～2000 cm^-1), bridgrd (2000～1900 cm^-1) or multi-bonded (1900～1800 cm^-1) species, were identified. A different absorbate, twin CO on rhodium (Rh(CO)₂), does exist on the solid/gas interface of highly dispersed Rh or Rhn clusters on supports, this species originating a doublet at 2100 and 2030 cm^-1 for its symmetrical and asymmetrical stretch modes, respectively. To our knowledge, this doublet has not been reported yet for the Rh/electrolyre interface.

Keywords

In situ multi-step FTIRS, Surface processes, Twin adsorbates, Carbon References

DOI Link

https://doi.org/10.61558/2993-074X.3050

Publication Date

1996-02-28

Online Available Date

1996-02-28

Revised Date

1995-12-08

Received Date

1995-07-21

Recommended Citation

Wenfeng Lin, Shigang Sun. FTIS Observation of Twin Adsorbates of CO on Rh Electrode in Acid Solution[J]. Journal of Electrochemistry, 1996 , 2(1): 20-23.
DOI: 10.61558/2993-074X.3050
Available at: https://jelectrochem.xmu.edu.cn/journal/vol2/iss1/9