Investigation of DBS electro-oxidation reaction in the aqueous-organic solution of LiClO4.
A process of dibutyl sulphide (DBS) electro-oxidation using electrolysis and cyclic voltamperometry was investigated in water-methanol solution using different electrodes (platinum, boron doped diamond, graphite and glassy carbon). Obtained results indicate that the DBS electro-oxidation process is irreversible in voltamperometric conditions. It was shown that during DBS electrolytic oxidation on Pt, at the low anode potential (1.8 V), DBS was oxidized to sulphoxide and sulphone. Electrolysis at higher potential (up to 3.0 V) resulted in complete DBS oxidation and formation of various products, including: butyric acid, sulphuric acid, butanesulphinic acid, butanesulphonic acid, identified using gas chromatography (GC-AED) and mass spectrometry (GC-MS) methods.
Darlewski
Witold
W
Military University of Technology, Institute of Chemistry, Kaliskiego Street 2, 00-908 Warszawa, Poland.
Popiel
Stanisław
S
Nalepa
Tomasz
T
Gromotowicz
Waldemar
W
Szewczyk
Rafał
R
Stankiewicz
Romuald
R
D020148:Butyric Acid / Q000737:chemistry; D002244:Carbon / Q000737:chemistry; D004563:Electrochemistry / Q000379:methods*; D004566:Electrodes; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D018020:Lithium Compounds / Q000737:chemistry* / Q000302:isolation & purification; D010100:Oxygen / Q000737:chemistry*; D010472:Perchlorates / Q000737:chemistry* / Q000302:isolation & purification; D010984:Platinum / Q000737:chemistry; D013440:Sulfides / Q000737:chemistry*; D013441:Sulfinic Acids / Q000737:chemistry; D013450:Sulfones / Q000737:chemistry; D013451:Sulfonic Acids / Q000737:chemistry; D013454:Sulfoxides / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*
D018020:Lithium Compounds; D010472:Perchlorates; D013440:Sulfides; D013441:Sulfinic Acids; D013450:Sulfones; D013451:Sulfonic Acids; D013454:Sulfoxides; D014874:Water Pollutants, Chemical; D020148:Butyric Acid; D010984:Platinum; D002244:Carbon; C054684:lithium perchlorate; D010100:Oxygen