Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Hans-Joachim Lunk"'
Publikováno v:
Thermochimica Acta. 637:38-50
The thermal decomposition of ammonium paratungstate tetrahydrate has been studied in oxidising atmosphere at four heating rates employing the analytical techniques TG, DTG, DSC, and MS. In total, three endothermic and two exothermic effects have been
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