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  • 1
    Electronic Resource
    Electronic Resource
    Indirect anodic oxidation of benzyl alcohol in the presence of phase-transfer catalyst in a CSTER: kinetics of oxidation of benzaldehyde and effect of concentration of benzyl alcohol
    Amsterdam : Elsevier
    Electrochimica Acta 39 (1994), S. 2299-2309 
    Details
    ISSN: 0013-4686
    Keywords: CSTER ; benzaldehyde oxidation kinetics ; benzyl alcohol oxidation ; phase-transfer catalysis ; redox mediator
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0013-4686(93)E0019-I
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  • 2
    Electronic Resource
    Electronic Resource
    Indirect anodic oxidation of benzyl alcohol in the presence of phase-transfer catalyst in a CSTER: effect of current density, organic-to-aqueous volume ratio and concentration of phase-transfer catalyst
    Amsterdam : Elsevier
    Electrochimica Acta 39 (1994), S. 2311-2319 
    Details
    ISSN: 0013-4686
    Keywords: CSTER ; current density ; organic-to-aqueous volume ratio ; phase-transfer catalyst ; redox mediator
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0013-4686(94)00231-2
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  • 3
    Electronic Resource
    Electronic Resource
    Indirect anodic oxidation of benzyl alcohol in the presence of phase-transfer catalyst in a CSTER: effect of flow rate and temperature
    Amsterdam : Elsevier
    Electrochimica Acta 39 (1994), S. 2037-2044 
    Details
    ISSN: 0013-4686
    Keywords: CSTER ; benzyl alcohol ; flow rate ; indirect oxidation ; phase-transfer catalysis
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0013-4686(94)85085-2
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  • 4
    Electronic Resource
    Electronic Resource
    Kinetics of the anodic oxidation of benzyl alcohol in dichloromethane in the presence of redox mediator and phase transfer catalyst (1990)
    Springer
    Journal of applied electrochemistry 20 (1990), S. 978-985 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The kinetics of the anodic oxidation of benzyl alcohol in the two-phase system involving both, the redox mediator, OCl−/Cl−, and a phase transfer catalyst were investigated. The reaction order of the anodic oxidation of chloride ion in the aqueous phase was unity. The charge-transfer parameters, α,k 2 0 and the exchange current density,i 0, of the anodic oxidation of chloride ion in the aqueous phase were obtained. The theoretical model calculations correlated well with experimental data. The fractions of anodic surface covered by the aqueous phase were evaluated to be 0.89, 0.61, and 0.23 when the organic-to-aqueous volume ratios were 0.5, 1.0, and 2.0, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01019575
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  • 5
    Electronic Resource
    Electronic Resource
    In situ oxidative degradation of formaldehyde with hydrogen peroxide electrogenerated on the modified graphites (1994)
    Springer
    Journal of applied electrochemistry 24 (1994), S. 936-942 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The cathodic reduction of oxygen and the degradation of formaldehyde with hydrogen peroxide electrogenerated in situ was studied at graphite and modified graphite as cathodes. The peak current of the cathodic reduction of oxygen increased significantly when anodically treated graphite and graphite modified with 2,3,7,8,12,13,17,18-octaethyl-21 H,23H-porphyrine cobalt (Co(IIOTP) were used as cathodes, respectively. The current density for the oxidative degradation of formaldehyde was significantly increased when graphite was replaced by anodized graphite as the cathode. Using anodized graphite as cathode, the degradation fractions of the formaldehyde were 99.6 and 98.3% in divided and undivided cells, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00348785
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  • 6
    Electronic Resource
    Electronic Resource
    Anodic oxidation of benzyl alcohol to benzaldehyde in the presence of both redox mediator and polymer-supported phase-transfer catalyst (1992)
    Springer
    Journal of applied electrochemistry 22 (1992), S. 966-972 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Using a polymer-supported phase-transfer catalyst (PTC) and a redox mediator, Cl−/OCl−, the anodic oxidation of benzyl alcohol was studied. The polymer support used in this study was synthesized by the method of suspension polymerization. The results revealed that on decreasing the crosslinking and increasing the content of chloromethylstyrene in the polymer support, the number of phase transfer active sites, tri-n-butylphosphine, in the polymer-supported PTC increased. The anodic oxidation of benzyl alcohol in the presence of the redox mediator, Cl−/OCl−, and polymer-supported PTC occurred in the reaction controlled region when the stirring rate exceeded 400 r.p.m. The results also revealed that the current efficiency for the anodic oxidation of benzyl alcohol was mainly affected by the characteristics and weight of the polymer-supported PTC, the pH, and the concentration of benzyl alcohol. However, the temperature affected the current efficiency only slightly.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01024145
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  • 7
    Electronic Resource
    Electronic Resource
    Decolourization of dye-containing solutions by electrocoagulation (1994)
    Springer
    Journal of applied electrochemistry 24 (1994), S. 785-790 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract In the electrocoagulation of Drimarene Discharge X-3LG® (R12S) and Samaron Yellow 4® (D05H), the effects of sacrificial anodes, initial pH, rate of stirring and concentrations of dyes on the fraction of decolourization were tested. The experimental results revealed that the colour of dyes in the aqueous phase was effectively removed when iron and aluminium were used as sacrificial anodes and the concentration of the dyes was less than 100 p.p.m. When the concentration of R12S exceeded 300 p.p.m. iron was a more suitable sacrificial anode for electrocoagulation of R12S than aluminium. For the electrocoagulation of D05H in aqueous solution aluminium as a sacrificial anode was superior to iron when the concentration of D05H exceeded 300 p.p.m. Using iron as sacrificial anode, the residual concentration fraction of R12S was decreased below 10% when the initial concentration of R12S and charge passed were 500 p.p.m. and 120C, respectively. The decolourization fraction of D05H was 99% when aluminium was used as sacrificial anode.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00578095
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  • 8
    Electronic Resource
    Electronic Resource
    In situ degradation of formaldehyde with electrogenerated hypochlorite ion (1995)
    Springer
    Journal of applied electrochemistry 25 (1995), S. 483-489 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The oxidant ClO− was generated on an SPR (SnO2-PdO-RuO2-TiO2) anode and used to degrade formaldehyde in aqueous solution. The current efficiency of the production of hypochlorite ion was significantly affected by the concentration of chloride ion, pH and stirring rate. The effect of current density and temperature on the current efficiency for electrogeneration of hypochlorite ion was slight. The maximum anodic current efficiency was 99.3% when 100 C was charged. Increasing the concentration of chloride ion, pH, temperature, stirring rate and the concentration of formaldehyde in the solution and decreasing the current density and charge passed resulted in increased current efficiency of degradation of formaldehye with electrogenerated hypochlorite ion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00260692
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  • 9
    Electronic Resource
    Electronic Resource
    In situ paired electrooxidative degradation of formaldehyde with electrogenerated hydrogen peroxide and hypochlorite ion (1998)
    Springer
    Journal of applied electrochemistry 28 (1998), S. 703-710 
    Details
    ISSN: 1572-8838
    Keywords: paired electrolysis ; oxidative degradation ; formaldehyde ; hydrogen peroxide ; hypochlorite
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Formaldehyde was degraded with hydrogen peroxide and hypochlorite ion electrogenerated by paired electrolysis of dissolved oxygen and chloride ion in aqueous solution. Degradation of formaldehyde in the cathodic compartment was significantly affected by the ratio of electrolyte volume to cathodic surface area, oxygen sparging rate and stirring rate. The model calculations correlated sufficiently well with the experimental results. The average current efficiency and degradation fraction of the in situ paired electrooxidative degradation of formaldehyde were experimentally found to be 62.0% and 93.2%, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003294011228
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  • 10
    Electronic Resource
    Electronic Resource
    Paired electrooxidative degradation of phenol with in situ electrogenerated hydrogen peroxide and hypochlorite (1996)
    Springer
    Journal of applied electrochemistry 26 (1996), S. 673-678 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The oxidants, hydrogen peroxide and hypochlorite, were generated by the cathodic reduction of oxygen and anodic oxidation of chloride ion in a paired electrolysis process and used for phenol degradation. The degradation of phenol with electrogenerated hydrogen peroxide was slightly affected by pH and ferrous ion concentration. The oxidative degradation of phenol with paired electrogenerated hydrogen peroxide and hypochlorite was significantly affected by phenol concentration. In comparison with the cathodic and anodic degradation of phenol, the removal of phenol increased by 56.1 and 178.1%, respectively, in the case of paired electrooxidative phenol degradation. The COD decreased from 3222 and 3222 ppm to 2253 and 2746 ppm in the anodic and cathodic compartments when the charge passed increased from 0 to 2500C.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00253467
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