X
Search Filters
Format Format
Subjects Subjects
Subjects Subjects
X
Sort by Item Count (A-Z)
Filter by Count
ammonium paratungstate (32) 32
ammonium compounds (24) 24
ammonium paratungstate tetrahydrate (19) 19
chemistry, physical (17) 17
xrd (15) 15
chemistry (14) 14
chemistry, analytical (13) 13
physical chemistry (11) 11
thermal-decomposition (11) 11
ammonium (10) 10
polymer sciences (10) 10
tg-ftir (10) 10
thermal decomposition (10) 10
analytical chemistry (9) 9
inorganic chemistry (9) 9
reduction (9) 9
tg/dta-ms (9) 9
ammonia (8) 8
decomposition (8) 8
hydrogen (8) 8
materials science, multidisciplinary (8) 8
tungsten (8) 8
tungsten oxides (8) 8
analysis (7) 7
chemistry, multidisciplinary (7) 7
measurement science and instrumentation (7) 7
tetrahydrate (7) 7
tungsten-oxide (7) 7
wolframoxid (7) 7
ammonium-ion (6) 6
metallurgy & metallurgical engineering (6) 6
nanoparticles (6) 6
thermodynamics (6) 6
tungsten trioxide (6) 6
ammonium chloride (5) 5
characterization and evaluation of materials (5) 5
ftir (5) 5
kinetics (5) 5
sensors (5) 5
thermal analysis (5) 5
thermische zersetzung (5) 5
thermolysis (5) 5
thin-films (5) 5
wo3 (5) 5
wolfram (5) 5
air (4) 4
apt (4) 4
biotechnology (4) 4
calorimetry (4) 4
crystal structure (4) 4
crystal-structure (4) 4
engineering, chemical (4) 4
hydroxides (4) 4
index medicus (4) 4
oxide (4) 4
precursors (4) 4
purification (4) 4
stability (4) 4
acid (3) 3
ammoniak (3) 3
ammonium metatungstate (3) 3
annealing (3) 3
biotechnology & applied microbiology (3) 3
carbonates (3) 3
cobalt (3) 3
evolved gas analysis (3) 3
hexagonal tungsten-oxide (3) 3
material science (3) 3
oxidation (3) 3
oxides (3) 3
partial reduction (3) 3
phosphates (3) 3
research (3) 3
simultaneous tg/dta (3) 3
temperature (3) 3
tungsten bronze (3) 3
tungsten compounds (3) 3
water (3) 3
x-ray diffraction (3) 3
xps (3) 3
ammonium nitrate (2) 2
ammonium-sulfate (2) 2
ammoniumnitrat (2) 2
ammoniumsulfat (2) 2
amorpher zustand (2) 2
amorphous-phase (2) 2
atmospheres (2) 2
behavior (2) 2
biocompatibility (2) 2
calcination (2) 2
carbon (2) 2
catalyst (2) 2
characterization (2) 2
chemical properties (2) 2
chemistry, inorganic & nuclear (2) 2
chlorides (2) 2
condensed matter physics (2) 2
continuum mechanics and mechanics of materials (2) 2
coupled tg-ega-ftir (2) 2
coupled tg/dta-ega-ms (2) 2
more...
Language Language
Publication Date Publication Date
Click on a bar to filter by decade
Slide to change publication date range


Thermochimica Acta, ISSN 0040-6031, 08/2016, Volume 637, pp. 38 - 50
[Display omitted] •Thermal decomposition of APT·4H2O: A sequence of consecutive and competing reactions.•Quantification of liberated water and ammonia from... 
Ammonium paratungstate tetrahydrate | Thermochemistry | Kinetics | Tungsten trioxide | VACUUM | CHEMISTRY, ANALYTICAL | VERMICULITE SINGLE-CRYSTALS | APT | CHEMISTRY, PHYSICAL | TG/DTA-MS | AIR | XRD | ISOTHERMAL DEHYDRATION | THERMODYNAMICS | REDUCTION | EGA | TG-FTIR
Journal Article
Thermochimica Acta, ISSN 0040-6031, 03/2008, Volume 469, Issue 1-2, pp. 12 - 22
The thermal decomposition of ammonium paratungstate tetrahydrate (APT·4H O), (NH ) [H W O ]·4H O, in air to tungsten trioxide, WO , was investigated under... 
Ammonium paratungstate | Thermal decomposition | Tungsten trioxide | Ammonium metatungstate | OXIDATION | CHEMISTRY, ANALYTICAL | METHANOL | thermal decomposition | APT | CRYSTAL-STRUCTURE | CHEMISTRY, PHYSICAL | TG/DTA-MS | XRD | CATALYST | ammonium paratungstate | ammonium metatungstate | REDUCTION | tungsten trioxide | TG-FTIR
Journal Article
Thermochimica Acta, ISSN 0040-6031, 06/2016, Volume 633, pp. 77 - 81
[Display omitted] •Detection of reduced tungsten ions at the solid’s surface in oxidising atmosphere.•Detection of gaseous ammonia liberated as oxidising... 
Polyoxometalates | Thermochemistry | Photoelectron spectroscopy | Tungsten | CHEMISTRY, ANALYTICAL | THERMODYNAMICS | CHEMISTRY, PHYSICAL | DIFFRACTION | AIR | OXIDES | Ammonia | Oxides
Journal Article
International Journal of Refractory Metals and Hard Materials, ISSN 0263-4368, 04/2018, Volume 72, pp. 315 - 322
In this study, the reduction-carbonization property of WO3 obtained by thermal decomposition of ammonium paratungstate (APT) under N2 and air atmosphere in a... 
Ammonium paratungstate (APT) | Nano-sized WC | Monoclinic WO3 | Thermal decomposition | Fluidized bed | Monoclinic WO | TETRAHYDRATE | MATERIALS SCIENCE, MULTIDISCIPLINARY | METALLURGY & METALLURGICAL ENGINEERING | TUNGSTEN CARBIDE POWDERS | XRD | THERMAL-DECOMPOSITION
Journal Article
Inorganica Chimica Acta, ISSN 0020-1693, 04/2016, Volume 444, pp. 29 - 35
Ammonium paratungstate (APT, (NH4)10[H2W12O42]·xH2O (X=4, 10)) was prepared with the solid–gas phase heterogeneous reaction between tungsten oxide powder,... 
Tungsten-oxide | Ammonium paratungstate | Nanoparticle | Solid–gas phase | Heterogeneous reaction | TETRAHYDRATE | TG/DTA-MS | XRD | THERMAL-DECOMPOSITION | CHEMISTRY, INORGANIC & NUCLEAR | HEXAGONAL TUNGSTEN-OXIDE | CARBIDE | REDUCTION | Solid-gas phase | TG-FTIR
Journal Article
Journal Article
Thermochimica Acta, ISSN 0040-6031, 2008, Volume 469, Issue 1, pp. 12 - 22
The thermal decomposition of ammonium paratungstate tetrahydrate (APT·4H 2O), (NH 4) 10[H 2W 12O 42]·4H 2O, in air to tungsten trioxide, WO 3, was investigated... 
Ammonium paratungstate | Thermal decomposition | Tungsten trioxide | Ammonium metatungstate | Raman spectroscopy | Hydrogen | Tungsten compounds | Analysis
Journal Article
International Journal of Refractory Metals and Hard Materials, ISSN 0263-4368, 03/2013, Volume 37, pp. 106 - 116
In this study, the thermal decomposition of ammonium paratungstate hydrate was investigated in dynamic air and inert gas (nitrogen and argon) atmospheres by... 
Tungsten oxide | Tungsten suboxide | Ammonium paratungstate hydrate | Ammonium tungsten oxide bronze | Thermal analysis | Keywords | TETRAHYDRATE | TUNGSTEN BRONZE | MATERIALS SCIENCE, MULTIDISCIPLINARY | METALLURGY & METALLURGICAL ENGINEERING | TG/DTA-MS | PARTIAL REDUCTION | XRD | TG-FTIR | Dehydration (Physiology) | Hydrogen | Tungsten compounds | Analysis
Journal Article
International Journal of Refractory Metals and Hard Materials, ISSN 0263-4368, 2012, Volume 30, Issue 1, pp. 177 - 179
Journal Article
Journal of Catalysis, ISSN 0021-9517, 10/2012, Volume 294, pp. 119 - 127
Oxidized/partially reduced hexagonal (h-) and monoclinic (m-) WO3 nanoparticles were tested as photocatalysts both in the aqueous and in the gaseous phase.... 
Monoclinic | WO3 | Hexagonal | Photocatalysis | HEXAGONAL WO3 | THIN-FILMS | AMMONIUM PARATUNGSTATE TETRAHYDRATE | TUNGSTEN TRIOXIDE | ANNEALING TEMPERATURE | CHEMISTRY, PHYSICAL | ENGINEERING, CHEMICAL | VISIBLE-LIGHT | METHYL-ORANGE | DOPED TITANIA | TITANIUM-DIOXIDE | TIO2
Journal Article
Arabian Journal of Chemistry, ISSN 1878-5352, 01/2020, Volume 13, Issue 1, pp. 1283 - 1296
The correlation between crystallite size and the characteristics of micrometer-sized photocatalyst particles was investigated. As a model of photocatalyst,... 
Amorphous | Tungstate material | Crystallite size | Photodecomposition rate | Curcumin | AMMONIUM PARATUNGSTATE TETRAHYDRATE | STABILITY | SPRAY-PYROLYSIS | THERMAL-DECOMPOSITION | CHEMISTRY, MULTIDISCIPLINARY | LIGHT IRRADIATION | NANOPARTICLES | FILMS | TEMPERATURE | NANOCRYSTALLINE TIO2 | DEGRADATION
Journal Article
Inorganic Chemistry, ISSN 0020-1669, 10/2010, Volume 49, Issue 20, pp. 9400 - 9408
In 1906, the preparation of “molybdic acid hydrate” was published by Arthur Rosenheim. Over the past 40 years, a multitude of isostructural compounds, which... 
THIN-FILMS | NO2 | MOO3 | TETRAHYDRATE | PHASE | MOLYBDATES | CRYSTAL-STRUCTURE | NEUTRON-SCATTERING | THERMAL-DECOMPOSITION | WATER | CHEMISTRY, INORGANIC & NUCLEAR | Ammonium chloride | Ammonium compounds | Usage | Molybdenum compounds | Ammonium paratungstate | Nuclear magnetic resonance spectroscopy | Fourier transform infrared spectroscopy | Chemical properties | Structure | Hydrates
Journal Article
RSC Advances, ISSN 2046-2069, 2017, Volume 7, Issue 74, pp. 46726 - 46737
Previously the WO3-EDA hybrid material was obtained only from solvothermal reactions. In this study this hybrid was prepared by two novel methods: a solid-gas... 
HEXAGONAL TUNGSTEN-OXIDE | AMMONIUM PARATUNGSTATE TETRAHYDRATE | SENSING APPLICATIONS | SOYBEAN OIL | HIGH PHOTOCATALYTIC PERFORMANCE | WO3 | XRD | HETEROGENEOUS CATALYST | EFFICIENT | CHEMISTRY, MULTIDISCIPLINARY | TRANSESTERIFICATION
Journal Article
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, ISSN 0002-7863, 11/2012, Volume 134, Issue 44, pp. 18318 - 18324
We describe stable intercalation compounds of the composition xN(2)center dot WO3 (x = 0.034-0.039), formed by trapping N-2 in WO3. The incorporation of N-2... 
PHASES | AMMONIUM PARATUNGSTATE TETRAHYDRATE | TUNGSTEN TRIOXIDE | DECOMPOSITION | BAND | PHOTOLYSIS | PHOTOELECTROLYSIS | CHEMISTRY, MULTIDISCIPLINARY
Journal Article
Applied Catalysis B: Environmental, ISSN 0926-3373, 02/2015, Volume 163, pp. 370 - 381
•Structure of (Nb)WO3 modified by varying the calcination temperature.•NH3 and NH4+ stabilize hexagonal WO3.•Intermediate calcination temperature and Pd... 
Tungsten oxide | Ammonia | Hydroisomerization | Reduction | Acidity | AMMONIUM PARATUNGSTATE TETRAHYDRATE | ZIRCONIA | TEMPERATURE-PROGRAMMED REDUCTION | CHEMISTRY, PHYSICAL | SOLID ACID | XRD | ENGINEERING, CHEMICAL | ENGINEERING, ENVIRONMENTAL | WOX/ZRO2 | SITES | SPILLOVER | REDOX TREATMENTS | XPS | Oxides | Analysis | Catalysts | Precursors | Tungsten | Calcination | Catalysis | X-ray photoelectron spectroscopy
Journal Article
Chinese Journal of Catalysis, ISSN 1872-2067, 06/2017, Volume 38, Issue 6, pp. 1087 - 1100
The use of H2SO4-, HCl-, H3PO4-, and CH3COOH-activated montmorillonite (Mt) and WOx/H3PO4-activated Mt as catalysts for the gas-phase dehydration of glycerol... 
Glycerol | Acrolein | WOx | Dehydration | Acid-activated nanoclay | Catalyst | SURFACE-ACIDITY | W-OXIDE | CLAY-MINERALS | AMMONIUM PARATUNGSTATE TETRAHYDRATE | TUNGSTEN-OXIDE | SUSTAINABLE PRODUCTION | CHEMISTRY, PHYSICAL | THERMAL-DECOMPOSITION | ENGINEERING, CHEMICAL | GAS-PHASE DEHYDRATION | SOLID ACIDITY | CHEMISTRY, APPLIED | TG-FTIR
Journal Article