Thermal decomposition of Ln(C2H5CO2)3·H2O (Ln = Ho, Er, Tm and Yb)

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The thermal decomposition of Ho(III), Er(III), Tm(III) and Yb(III) propionate monohydrates in argon was studied by means of thermogravimetry (TG), differential thermal analysis (DTA), IR-spectroscopy and X-ray diffraction (XRD). Dehydration takes place around 90 °C. It is followed by the decomposition of the anhydrous propionates to Ln2O2CO3 (Ln = Ho, Er, Tm or Yb) with the evolution of CO2 and 3-pentanone (C2H5COC2H5) between 300 and 400 °C. The further decomposition of Ln2O2CO3 to the respective sesquioxides Ln2O3 is characterized by an intermediate plateau extending from approximately 500–700 °C in the TG traces. This stage corresponds to an overall composition of Ln2O2.5(CO3)0.5 but is more probably a mixture of Ln2O2CO3 and Ln2O3. The stability of this intermediate state decreases for the lighter rare-earth (RE) compounds studied. Full conversion to Ln2O3 is achieved at about 1,100 °C. The overall thermal decomposition behaviour of the title compounds is similar to that previously reported for Lu(C2H5CO2)3·H2O.
    Original languageEnglish
    JournalJournal of Thermal Analysis and Calorimetry
    Volume109
    Pages (from-to)81-88
    ISSN1388-6150
    DOIs
    Publication statusPublished - 2012

    Keywords

    • Rare-earth propionate
    • Holmium
    • Erbium
    • Thulium
    • Ytterbium
    • Thermal decomposition
    • TG/DTA
    • IR
    • X-ray powder diffraction
    • Chemistry
    • Chemical solution deposition
    • Sol-gel route
    • Coated conductors
    • Thin-films
    • Carbamide compounds
    • Oxide
    • Acetate

    Cite this

    @article{5860e50fac4c400182afbcd773a6474c,
    title = "Thermal decomposition of Ln(C2H5CO2)3·H2O (Ln = Ho, Er, Tm and Yb)",
    abstract = "The thermal decomposition of Ho(III), Er(III), Tm(III) and Yb(III) propionate monohydrates in argon was studied by means of thermogravimetry (TG), differential thermal analysis (DTA), IR-spectroscopy and X-ray diffraction (XRD). Dehydration takes place around 90 °C. It is followed by the decomposition of the anhydrous propionates to Ln2O2CO3 (Ln = Ho, Er, Tm or Yb) with the evolution of CO2 and 3-pentanone (C2H5COC2H5) between 300 and 400 °C. The further decomposition of Ln2O2CO3 to the respective sesquioxides Ln2O3 is characterized by an intermediate plateau extending from approximately 500–700 °C in the TG traces. This stage corresponds to an overall composition of Ln2O2.5(CO3)0.5 but is more probably a mixture of Ln2O2CO3 and Ln2O3. The stability of this intermediate state decreases for the lighter rare-earth (RE) compounds studied. Full conversion to Ln2O3 is achieved at about 1,100 °C. The overall thermal decomposition behaviour of the title compounds is similar to that previously reported for Lu(C2H5CO2)3·H2O.",
    keywords = "Rare-earth propionate, Holmium, Erbium, Thulium, Ytterbium, Thermal decomposition, TG/DTA, IR, X-ray powder diffraction, Chemistry, Chemical solution deposition, Sol-gel route, Coated conductors, Thin-films, Carbamide compounds, Oxide, Acetate, Superledende materialer",
    author = "Jean-Claude Grivel",
    year = "2012",
    doi = "10.1007/s10973-011-1745-9",
    language = "English",
    volume = "109",
    pages = "81--88",
    journal = "Journal of Thermal Analysis and Calorimetry",
    issn = "1388-6150",
    publisher = "Akademiai Kiado Rt.",

    }

    Thermal decomposition of Ln(C2H5CO2)3·H2O (Ln = Ho, Er, Tm and Yb). / Grivel, Jean-Claude.

    In: Journal of Thermal Analysis and Calorimetry, Vol. 109, 2012, p. 81-88.

    Research output: Contribution to journalJournal articleResearchpeer-review

    TY - JOUR

    T1 - Thermal decomposition of Ln(C2H5CO2)3·H2O (Ln = Ho, Er, Tm and Yb)

    AU - Grivel, Jean-Claude

    PY - 2012

    Y1 - 2012

    N2 - The thermal decomposition of Ho(III), Er(III), Tm(III) and Yb(III) propionate monohydrates in argon was studied by means of thermogravimetry (TG), differential thermal analysis (DTA), IR-spectroscopy and X-ray diffraction (XRD). Dehydration takes place around 90 °C. It is followed by the decomposition of the anhydrous propionates to Ln2O2CO3 (Ln = Ho, Er, Tm or Yb) with the evolution of CO2 and 3-pentanone (C2H5COC2H5) between 300 and 400 °C. The further decomposition of Ln2O2CO3 to the respective sesquioxides Ln2O3 is characterized by an intermediate plateau extending from approximately 500–700 °C in the TG traces. This stage corresponds to an overall composition of Ln2O2.5(CO3)0.5 but is more probably a mixture of Ln2O2CO3 and Ln2O3. The stability of this intermediate state decreases for the lighter rare-earth (RE) compounds studied. Full conversion to Ln2O3 is achieved at about 1,100 °C. The overall thermal decomposition behaviour of the title compounds is similar to that previously reported for Lu(C2H5CO2)3·H2O.

    AB - The thermal decomposition of Ho(III), Er(III), Tm(III) and Yb(III) propionate monohydrates in argon was studied by means of thermogravimetry (TG), differential thermal analysis (DTA), IR-spectroscopy and X-ray diffraction (XRD). Dehydration takes place around 90 °C. It is followed by the decomposition of the anhydrous propionates to Ln2O2CO3 (Ln = Ho, Er, Tm or Yb) with the evolution of CO2 and 3-pentanone (C2H5COC2H5) between 300 and 400 °C. The further decomposition of Ln2O2CO3 to the respective sesquioxides Ln2O3 is characterized by an intermediate plateau extending from approximately 500–700 °C in the TG traces. This stage corresponds to an overall composition of Ln2O2.5(CO3)0.5 but is more probably a mixture of Ln2O2CO3 and Ln2O3. The stability of this intermediate state decreases for the lighter rare-earth (RE) compounds studied. Full conversion to Ln2O3 is achieved at about 1,100 °C. The overall thermal decomposition behaviour of the title compounds is similar to that previously reported for Lu(C2H5CO2)3·H2O.

    KW - Rare-earth propionate

    KW - Holmium

    KW - Erbium

    KW - Thulium

    KW - Ytterbium

    KW - Thermal decomposition

    KW - TG/DTA

    KW - IR

    KW - X-ray powder diffraction

    KW - Chemistry

    KW - Chemical solution deposition

    KW - Sol-gel route

    KW - Coated conductors

    KW - Thin-films

    KW - Carbamide compounds

    KW - Oxide

    KW - Acetate

    KW - Superledende materialer

    U2 - 10.1007/s10973-011-1745-9

    DO - 10.1007/s10973-011-1745-9

    M3 - Journal article

    VL - 109

    SP - 81

    EP - 88

    JO - Journal of Thermal Analysis and Calorimetry

    JF - Journal of Thermal Analysis and Calorimetry

    SN - 1388-6150

    ER -