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Titolo:
Paired electrosynthesis of aminoiminomethane-sulfonic acids
Autore:
Li, W; Nonaka, T;
Indirizzi:
Tokyo Inst Technol, Dept Elect Chem, Midori Ku, Yokohama, Kanagawa 2268502, Tokyo Inst Technol Yokohama Kanagawa Japan 2268502 ama, Kanagawa 2268502,
Titolo Testata:
ELECTROCHIMICA ACTA
fascicolo: 15, volume: 44, anno: 1999,
pagine: 2605 - 2612
SICI:
0013-4686(1999)44:15<2605:PEOAA>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
OXYHALOGEN-SULFUR CHEMISTRY; CHEMICAL OSCILLATORS; SYSTEMATIC DESIGN; OXIDATION; THIOUREA; MECHANISM; KINETICS;
Keywords:
thiourea; aminoiminomethane-sulfonic acid; cathodic and anodic indirect oxidations; pertungstate/tungstate redox mediator; paired electrosynthesis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
38
Recensione:
Indirizzi per estratti:
Indirizzo: Nonaka, T Tokyoanagawaechnol, Dept Elect Chem, Midori Ku, 4259 Nagatsuta, Yokohama, K Tokyo Inst Technol 4259 Nagatsuta Yokohama Kanagawa Japan 2268502
Citazione:
W. Li e T. Nonaka, "Paired electrosynthesis of aminoiminomethane-sulfonic acids", ELECTR ACT, 44(15), 1999, pp. 2605-2612

Abstract

Aminoiminomethane-sulfonic acids were prepared by the cathodic indirect oxidation of the corresponding thioureas using a pertungstate/tungstate redoxmediator driven by H2O2 electrogenerated from O-2 at a cathode and by the anodic indirect oxidation using a Cl-2/Cl- redox mediator at an anode. Affecting factors for this kind of paired electrosynthesis, such as pH, temperature, current density, amount of charge passed, supporting electrolyte and electrode material were optimized for both the cathodic and anodic oxidations. The paired electrosynthesis was carried out in H-type and flow-type divided cells, and maximum current efficiencies of 136 and 142% could be obtained, respectively. Mechanism of the both indirect electrooxidations was also investigated. (C) 1999 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 23:12:17