X
Search Filters
Format Format
Subjects Subjects
Subjects Subjects
X
Sort by Item Count (A-Z)
Filter by Count
h3pw12o40 (380) 380
chemistry, physical (222) 222
catalysts (110) 110
catalysis (109) 109
silica (87) 87
12-tungstophosphoric acid (80) 80
chemistry, multidisciplinary (73) 73
engineering, chemical (67) 67
chemistry (63) 63
heteropolyacid (63) 63
oxidation (61) 61
heteropoly acids (59) 59
environmental sciences (56) 56
mcm-41 (51) 51
materials science, multidisciplinary (49) 49
esterification (48) 48
heteropolyacids (47) 47
heteropoly acid (46) 46
heteropoly compounds (45) 45
adsorption (43) 43
chemistry, applied (43) 43
acid (42) 42
dehydration (42) 42
efficient (40) 40
heteropolysäure (37) 37
tungsten compounds (37) 37
phosphotungstic acid (36) 36
salts (36) 36
tungstophosphoric acid (36) 36
catalyst (34) 34
nmr (34) 34
performance (33) 33
methanol (32) 32
nanoparticles (32) 32
conversion (31) 31
degradation (31) 31
acidity (30) 30
alkylation (30) 30
chemistry, inorganic & nuclear (30) 30
water (30) 30
analysis (29) 29
tungsten (28) 28
physical chemistry (27) 27
tio2 (26) 26
acids (25) 25
mesoporous silica (25) 25
sba-15 (25) 25
spectroscopy (25) 25
chemistry, organic (24) 24
molecular-sieve (24) 24
polyoxometalate (24) 24
ethanol (23) 23
heterogeneous catalysis (23) 23
alcohols (22) 22
zeolites (22) 22
catalyst-activity (21) 21
photocatalysis (21) 21
stability (21) 21
surface (21) 21
chemical properties (20) 20
energy & fuels (20) 20
glycerol (20) 20
selective oxidation (20) 20
zirconia (20) 20
isomerization (19) 19
katalytische aktivität (19) 19
catalytic-properties (18) 18
dodecatungstophosphoric acid (18) 18
electrochemistry (18) 18
industrial chemistry/chemical engineering (18) 18
nanoscience & nanotechnology (18) 18
one-pot synthesis (18) 18
x-ray-diffraction (18) 18
acetic-acid (17) 17
carbon (17) 17
catalytic activity (17) 17
h3pw12o40/tio2 (17) 17
hydrogen-peroxide (17) 17
keggin (17) 17
derivatives (16) 16
phosphates (16) 16
physics, condensed matter (16) 16
solid acid catalysts (16) 16
zeolite (16) 16
activated carbon (15) 15
alcohol (15) 15
ammonia (15) 15
biodiesel (15) 15
chemical sciences (15) 15
inorganic chemistry (15) 15
kinetics (15) 15
pyridine (15) 15
röntgendiffraktion (15) 15
synthesis (15) 15
mechanism (14) 14
molybdenum (14) 14
phase (14) 14
physics, applied (14) 14
azidität (13) 13
composite (13) 13
more...
Language Language
Publication Date Publication Date
Click on a bar to filter by decade
Slide to change publication date range


Inorganic Chemistry, ISSN 0020-1669, 10/2018, Volume 57, Issue 20, pp. 13009 - 13019
Clean fuels with extremely low sulfur content are highly desirable due to environmental concerns. Herein, three water-stable and eco-friendly metal–organic... 
PORE-SIZE | SELECTIVE OXIDATION | H3PW12O40 | PERFORMANCE | POLYOXOMETALATE | DEEP DESULFURIZATION | ADSORPTION | HETEROGENEOUS CATALYST | HIGHLY EFFICIENT | IMMOBILIZATION | CHEMISTRY, INORGANIC & NUCLEAR
Journal Article
Journal of the American Chemical Society, ISSN 0002-7863, 04/2014, Volume 136, Issue 13, pp. 4954 - 4964
We have developed for fuel cells a novel proton exchange membrane (PEM) using inorganic phosphotungstic acid (HPW) as proton carrier and mesoporous silica as... 
PSEUDOPOTENTIALS | ELECTROLYTE | NMR | TEMPERATURE | 12-TUNGSTOPHOSPHORIC ACID | CONDUCTIVITY | H3PW12O40 | PERFORMANCE | GLASS COMPOSITE MEMBRANES | NANOCOMPOSITE | CHEMISTRY, MULTIDISCIPLINARY | Density functionals | Usage | Research | Electron transport | Silica
Journal Article
Colloids and Surfaces A: Physicochemical and Engineering Aspects, ISSN 0927-7757, 09/2019, Volume 577, pp. 147 - 157
[Display omitted] TiO2 and Sn+4 doped TiO2 nanoparticles were prepared via the surfactant-assisted sol-gel method. Then, H3PW12O40 (PTA) was loaded over... 
Pechmann reaction | Photodegradation | Sn-TiO2 | Surface acidity | TiO2 | H3PW12O40/Sn-TiO2 nanoparticle | Xanthene | PHOSPHOTUNGSTIC ACID | TUNGSTOPHOSPHORIC ACID | H3PW12O40/TIO2 | CHEMISTRY, PHYSICAL | EFFICIENT CATALYST | SULFAMIC ACID | DOPED TIO2 PHOTOELECTRODE | TIN OXIDE | DEGRADATION | SUPPORTED HETEROPOLY ACIDS | TITANIA
Journal Article
ISSN 1477-9226, 5/2014, Volume 43, Issue 24, pp. 961 - 969
New photocatalysts (La 3+ -H 3 PW 12 O 40 and Ce 3+ -H 3 PW 12 O 40 ) were prepared, and the degradation activity of these products was evaluated. These... 
Journal Article
by Li, TH and Li, QG and Yan, J and Li, F
DALTON TRANSACTIONS, ISSN 1477-9226, 2014, Volume 43, Issue 24, pp. 9061 - 9069
New photocatalysts (La3+-H3PW12O40 and Ce3+-H3PW12O40) were prepared, and the degradation activity of these products was evaluated. These photocatalysts were... 
HETEROPOLY ACIDS | NMR | ACTIVATED CARBON | CATALYTIC-PROPERTIES | H3PW12O40 | PHOTODEGRADATION | ESTERIFICATION | ADSORPTION | P-31 | CHEMISTRY, INORGANIC & NUCLEAR
Journal Article
Journal of Colloid And Interface Science, ISSN 0021-9797, 08/2012, Volume 380, Issue 1, pp. 121 - 127
[Display omitted] ► Both rare earth ions and heteropolyacids are used to dope TiO2 photocatalysts. ► The synergistic effect of the co-doped photocatalyst was... 
Heteropolyacid | Photocatalytic activity | Rare earth ion | Co-doping | TiO2 | OXIDE | ACID | CHEMISTRY, PHYSICAL | SOL | H3PW12O40 | CERIUM | DEGRADATION | 2-PROPANOL | TITANIUM-DIOXIDE | CATALYSTS
Journal Article
New Journal of Chemistry, ISSN 1144-0546, 2018, Volume 42, Issue 17, pp. 14271 - 14280
A novel amino siloxane-functionalized MCM-41 supported Wells–Dawson type H6P2W18O62 (D-HPW) catalyst was synthesized by a two-step method and investigated in... 
Journal Article
by Li, L and Jiang, LY and Yang, L and Li, J and Lu, N and Qu, J
SUSTAINABILITY, ISSN 2071-1050, 07/2019, Volume 11, Issue 13, p. 3551
Kinetics is crucial for photoelectrocatalytic degradation of organic contaminants. A 12-tungstophosphoric acid/titania (H3PW12O40/TiO2) composite film was... 
CONTAMINANTS | GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY | DESIGN | COMPOSITE FILM | CO2 REDUCTION | POLLUTANTS | photoelectrocatalytic system | impressed voltage | TiO2 composite film | ENVIRONMENTAL SCIENCES | PHOTOCATALYTIC DEGRADATION | degradation kinetic | H3PW12O40 | o-chlorophenol | PHOTODEGRADATION | ENVIRONMENTAL STUDIES | H3PW12O40/TiO2 composite film
Journal Article
Catalysis Today, ISSN 0920-5861, 01/2017, Volume 279, pp. 296 - 304
[Display omitted] •Fructose dehydration to HMF was evaluated using phosphotungstic acid (HPW) in DMSO.•92% of HMF yield was achieved with HPW after 30min of... 
Phosphotungstic acid | Dehydration | 5-Hydroxymethylfurfural | Fructose | OXIDATION | HMF | SUPPORTED 12-TUNGSTOPHOSPHORIC ACID | LIQUID | CHEMISTRY, PHYSICAL | CESIUM SALTS | MCM-41 | HETEROPOLYACIDS | SOLVENT | ENGINEERING, CHEMICAL | H3PW12O40 | CHEMISTRY, APPLIED | Phosphates | Tungsten compounds | Analysis | Dimethyl sulfoxide
Journal Article
Dalton Transactions, ISSN 1477-9226, 7/2016, Volume 45, Issue 29, pp. 11596 - 1165
General considerations on the differences and similarities between heterogeneous photocatalysis and thermal catalysis are presented. Some research papers are... 
NITROUS-OXIDE | OXIDATION | ETHYLENE | H3PW12O40 | DEHYDRATION | ZINC-OXIDE | METAL-SUPPORT INTERACTION | 2-PROPANOL | PHOTO | WATER | CHEMISTRY, INORGANIC & NUCLEAR
Journal Article
Chemical Engineering Journal, ISSN 1385-8947, 06/2016, Volume 294, pp. 343 - 352
[Display omitted] •Pd-H3PW12O40/Zr-MCM-41 is very active and selective in the gas phase dehydration of glycerol to acrolein.•Doping H3PW12O40/Zr-MCM-41 with... 
Glycerol | Pd-H3PW12O40/Zr-MCM-41 | Acrolein | Stability | Dehydration | Pd-H | Zr-MCM-41 | ACID CATALYST | SELECTIVE OXIDATION | HYDROGENOLYSIS | CRACKING | 1,2-PROPANEDIOL | MCM-41 | ENGINEERING, CHEMICAL | NANOPARTICLES | GAS-PHASE DEHYDRATION | ENGINEERING, ENVIRONMENTAL | MESOPOROUS SILICA | ZEOLITE
Journal Article
CATALYSTS, ISSN 2073-4344, 05/2019, Volume 9, Issue 5, p. 409
A family of silica-supported H3PW12O40 (HPW) solid acid catalysts was prepared by wet impregnation of mesoporous SBA-15 and investigated for the solventless... 
H3PW12O40 | ONE-POT SYNTHESIS | condensation | CHEMISTRY, PHYSICAL | 3-substituted indole | MULTICOMPONENT SYNTHESIS | SBA-15
Journal Article
The Journal of Physical Chemistry B, ISSN 1520-6106, 10/2006, Volume 110, Issue 41, pp. 20486 - 20490
The composite material of heteropolyacid (12-phosphotungstic acid; PWA) and polystyrene sulfonic acid (PSS) construct the PWA-encapsulated material by the... 
CHEMISTRY, PHYSICAL | DODECATUNGSTOPHOSPHORIC ACID | H3PW12O40 | COMPOSITE MEMBRANES | WATER | Protons | Research | Chemical properties | Polystyrene | Structure
Journal Article
Applied Catalysis B: Environmental, ISSN 0926-3373, 01/2017, Volume 200, pp. 10 - 18
[Display omitted] •Mesoporous SBA-15 facilitates dispersion of low dimensional polyoxometallate clusters.•HPW/SBA-15 is highly active for α-pinene... 
Heteropolyacid | Phosphotungstic acid | SBA-15 | α-Pinene | THERMAL-STABILITY | SOLID ACID CATALYSTS | SITE | AMMONIA | CHEMISTRY, PHYSICAL | SULFATED-ZIRCONIA | DENSITY | ENGINEERING, CHEMICAL | alpha-Pinene | KEGGIN-TYPE HETEROPOLYACIDS | ENGINEERING, ENVIRONMENTAL | H3PW12O40 | QUANTUM-CHEMICAL CALCULATIONS
Journal Article
Journal of Catalysis, ISSN 0021-9517, 04/2014, Volume 312, pp. 195 - 203
[Display omitted] •TiO2-supported HPAs are very active for low-temperature DME production.•H2O molecules between Keggin units on HPA/TiO2 are weakly bonded... 
Phosphotungstic acid | Dimethyl ether | Tungstosilicic acid | Heteropoly acid | Methanol dehydration | KEGGIN STRUCTURE | TUNGSTOPHOSPHORIC ACID | CHEMISTRY, PHYSICAL | PSEUDOLIQUID PHASE | GAS-SOLID INTERFACE | ENGINEERING, CHEMICAL | DIETHYL-ETHER | CATALYTIC-PROPERTIES | H3PW12O40 | ETHANOL | DEHYDRATION REACTION | MAS NMR
Journal Article
Fuel, ISSN 0016-2361, 02/2014, Volume 118, pp. 358 - 364
[Display omitted] •Synthesis of 12-tungstophosphoric acid anchored to MCM-41 and zirconia.•Thermal and textural characterization.•Glycerol esterification to... 
Glycerol | Heterogeneous | 12-Tungstophosphoric acid | Kinetic | Esterification | ACETYLATION | ENERGY & FUELS | BIOADDITIVES | OLEIC-ACID | SOLID ACID | ENGINEERING, CHEMICAL | BIODIESEL PRODUCTION | H3PW12O40 | SILICA | CATALYSTS | Glycerin | Catalysts | Reaction kinetics | Glycerols | Catalysis | Zirconium dioxide | Activation energy | Conversion
Journal Article
Green Chemistry, ISSN 1463-9262, 2018, Volume 20, Issue 20, pp. 4746 - 4751
A green and sustainable preparation strategy is critical for the practical applications of microporous organic polymers (MOPs). Here, a new heteropoly acid... 
FRIEDEL-CRAFTS ACYLATION | METHYL FORMATE |