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Browsing by Subject "tellur"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Electrochemical behavior of tellurium in acidic nitrate solutions
    (2014) Rudnik, Ewa; Biskup, Przemysław
    Electrochemistry of tellurium stationary electrode was studied in acidic nitrate solutions with pH 1.5 – 3.0. Cyclic voltammetry indicated that two products were formed at potentials above 300 mV (SCE): soluble $HTeO_{2}^{+}$ (500 mV) and sparingly soluble $H_{2}TeO_{3}$ (650 mV), but the former seemed to be an intermediate product for $TeO_{2}$ precipitation on the electrode surface. Formation of the solid products as porous layers was almost undisturbed and no electrode passivation was observed. $H_{2}TeO_{3}$ and $TeO_{2}$ dissolved to $HTeO_{2}^{+}$ under acidic electrolyte, but this process was hindered by pH increase. Cathodic polarization of tellurium electrode below -800 mV was accompanied by evolution of $H_{2}Te$, which was then oxidized at the potentials approx. -700 mV. $H_{2}Te$ generated in the electrochemical reaction decomposed to elemental tellurium as black powdery precipitates in the bulk of the solution and a bright film drifting on the electrolyte surface.
  • thumbnail.journal.alt
    Item type:Thesis, Access status: Restricted ,
    Oznaczanie telluru metodą katodową woltamperometrii stripingowej.
    (Data obrony: 2019-04-15) Nowak, Sebastian
    Wydział Inżynierii Materiałowej i Ceramiki
  • thumbnail.journal.alt
    Item type:Thesis, Access status: Restricted ,
    Warstwy Ge2Sb2Te5 do zastosowań w pamięciach PCRAM
    (Data obrony: 2019-01-29) Wabno, Bartosz
    Wydział Inżynierii Materiałowej i Ceramiki
  • thumbnail.journal.alt
    Item type:Thesis, Access status: Restricted ,
    Wpływ zawartości Er3+ na właściwości szkieł tellurowo-litowo-niobanowych
    (Data obrony: 2018-09-25) Czerczak, Monika
    Wydział Inżynierii Materiałowej i Ceramiki