Building a Differential Electrochemical Mass Spectrometry (DEMS): A Powerful Toll for Investigation of (photo)Electrochemical Processes

2021 ◽  
Vol MA2021-01 (46) ◽  
pp. 1873-1873
Author(s):  
Adriana Queiroz ◽  
Wanderson Oliveira da Silva ◽  
Daniel Cantane ◽  
Igor Messias ◽  
Maria Rodrigues Pinto ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Differential Electrochemical Mass Spectrometry ◽  
Electrochemical Processes

Electrochemical processes of adsorbed chlorobenzene and fluorobenzene on a platinum polycrystalline electrode

2009 ◽  
Vol 74 (4) ◽  
pp. 611-625 ◽  
Author(s):  
Natálie Musilová-Kebrlová ◽  
Pavel Janderka ◽  
Libuše Trnková
Keyword(s):  
Mass Spectrometry ◽  
Sulfuric Acid ◽  
Oxygen Adsorption ◽  
Negative Polarization ◽  
Electrode Processes ◽  
Differential Electrochemical Mass Spectrometry ◽  
Electrochemical Processes ◽  
Polycrystalline Platinum

The electrode processes of chlorobenzene (CB) and fluorobenzene (FB) on polycrystalline platinum (Pt-pc) electrode in sulfuric acid were studied by differential electrochemical mass spectrometry (DEMS). Contrary to the oxidation of adsorbed benzene on Pt surface, the oxidation of adsorbed CB and FB in the oxygen adsorption region does not provide solely CO2 as the final product. At negative polarization potentials CB and FB were desorbed under dehalogenation. While in the case of FB only benzene was detected, CB gave intermediates besides benzene. The final product of stepwise hydrogenation of these species was cyclohexane.

Electrodesorption from single-crystal electrodes: analysis by differential electrochemical mass spectrometry

1991 ◽  
Vol 63 (1) ◽  
pp. 44-48 ◽  
Author(s):  
Thomas. Hartung ◽  
Udo. Schmiemann ◽  
Inge. Kamphausen ◽  
Helmut. Baltruschat
Keyword(s):  
Mass Spectrometry ◽  
Single Crystal ◽  
Differential Electrochemical Mass Spectrometry
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