Thermal decomposition of ammonium paratungstate hydrate in air and inert gas atmospheres

Kalpakli A. O., Arabaci A., Kahruman C., Yusufoglu I.

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, cilt.37, ss.106-116, 2013 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 37
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.ijrmhm.2012.11.004
  • Dergi Adı: INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.106-116
  • Anahtar Kelimeler: Ammonium paratungstate hydrate, Tungsten oxide, Tungsten suboxide, Ammonium tungsten oxide bronze, Thermal analysis, PARTIAL REDUCTION, TUNGSTEN BRONZE, TG/DTA-MS, TG-FTIR, XRD, TETRAHYDRATE
  • İstanbul Üniversitesi-Cerrahpaşa Adresli: Hayır

Özet

In this study, the thermal decomposition of ammonium paratungstate hydrate was investigated in dynamic air and inert gas (nitrogen and argon) atmospheres by simultaneous thermo-gravimetric analysis (TGA), differential thermal analysis (DTA) and mass spectroscopy (MS). The intermediate and end products obtained during thermal decomposition of ammonium paratungstate hydrate were characterized by X-ray powder diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR).