Arbeitsmethoden und anwendungen der gleichspannungspolarographie

Nürnberg, H. W.; Stackelberg, Μ. v.

doi:10.1016/0022-0728(62)80025-4

Cited by 21 publications

(3 citation statements)

References 108 publications

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“…If, on the other hand, only a specific adsorption effect was operative, the so called t0-effect [9,10], there should be an acceleration of the electrode reaction, resulting in a shift of the reduction wave to more positive potentials. This was not observed, however.…”

Section: Equation (1) Predicts a Shift Of Elt2 Of 59 MV To More Negatmentioning

confidence: 99%

Reduction of some acidopentaaquochromium(III) complexes at the mercury electrode

Kooy

Gellings

1970

Journal of Inorganic and Nuclear Chemistry

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Abstract-The complexes [CrNCS(H20)5] 2+, [CrCI(H20)s] ~+, [CrF(H20)~, 2+ and [Cr(H20)6] a+ were studied by polarography and cyclic voltammetry in aqueous solution. It is shown that Triton X-100 and gelatine shift the polarographic waves to more negative potentials. In 1M NaCIO4-HCIO4 the half-wave potentials in the absence of maximum suppressor are (in Volts vs. SCE): CrNCS2+: --0.675; CrCI2+: -0.62; CrF~+:-1.105; Cr3+: -0.90 (water omitted in the formula). All reductions are irreversible. Replacement of NaC104 by NaSCN makes the reduction of CrNCS 2+ and CrCI z+ more reversible and shifts E½ 50 mV per log [SCN-I unit to more negative potentials for CrNCS z+ and 66 mV for CrCI 2+. It is suggested that CrNCS 2+ and CrCI 2+ may be reduced via a mecbanism analogous to the inner-sphere mechanism in homogeneous reductions.

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Section: Equation (1) Predicts a Shift Of Elt2 Of 59 MV To More Negatmentioning

confidence: 99%

Reduction of some acidopentaaquochromium(III) complexes at the mercury electrode

Kooy

Gellings

1970

Journal of Inorganic and Nuclear Chemistry

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confidence: 99%

“…Outstanding amont the numerous review's which have appeared are those by Nürnberg and von Stackelberg (186,187), which are installments of an extensive survey of the methodology and applications of d.c. polarography, these portions being devoted to reaction kinetic measurements, and doublelayer and adsorption phenomena, respectively. A good review' of modern methods in d.c. polarography has also been given by Nürnberg (186), and newer techniques have also been discussed by Kargin (121). Johnson (109) has given a three-part survey of techniques in direct and alternating current polarography, and later (111) a critical discussion of the advantages and dis-advantages of polarography as an analytical tool, view'ed from both economic and chemical standpoints.…”

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confidence: 99%