Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Hans-Joachim Lunk"'
Publikováno v:
Thermochimica Acta. 633:77-81
The interaction of ammonia, liberated during thermal decomposition of ammonium paratungstate tetrahydrate in oxidising atmosphere, with tungsten has been studied employing a conventional microbalance combined with MS (Setaram’s instrument Sensys ).
Thermal Degradation of Polyoxotungstates—An Effective Method for the Preparation of Tungsten Bronzes
Publikováno v:
Journal of Solid State Chemistry. 149:378-383
The thermal degradation of ammonium salts of five polyoxotungstates, [As III 12 Ce III 16 (H 2 O) 36 W 148 O 524 ] 76− I, [As III 5 Ce III 4 (H 2 O) 4 W 39 O 143 ] 25− II, [As III 3 (U VI O 2 ) 3 (H 2 O) 6 W 30 O 105 ] 15− III, [(W 5 O 18 ) 2 C
Publikováno v:
Thermochimica Acta. 244:93-103
The thermal degradation of the polyoxometallate Ba 2 H[α-FeO 4 W 12 O 36 ] · 26H 2 O was investigated by means of X-ray heating patterns, thermal analysis (TG, DTG, DTA, DSC) and spectroscopic methods (IR, ESR, Mossbauer). The formation of the new