COSTANTINO, Umberto
 Distribuzione geografica
Continente #
NA - Nord America 6.911
EU - Europa 4.490
AS - Asia 3.675
SA - Sud America 673
Continente sconosciuto - Info sul continente non disponibili 293
AF - Africa 93
OC - Oceania 3
Totale 16.138
Nazione #
US - Stati Uniti d'America 6.626
SG - Singapore 1.591
UA - Ucraina 1.109
IE - Irlanda 674
RU - Federazione Russa 608
HK - Hong Kong 570
BR - Brasile 488
CN - Cina 457
IT - Italia 457
SE - Svezia 422
DE - Germania 301
VN - Vietnam 280
FR - Francia 269
KR - Corea 252
FI - Finlandia 249
GB - Regno Unito 176
CA - Canada 129
BD - Bangladesh 94
IN - India 75
TR - Turchia 63
AR - Argentina 61
MX - Messico 41
PL - Polonia 38
UZ - Uzbekistan 35
IQ - Iraq 34
CH - Svizzera 32
BE - Belgio 31
CO - Colombia 31
VE - Venezuela 31
ID - Indonesia 30
JP - Giappone 29
NL - Olanda 29
CR - Costa Rica 25
PK - Pakistan 25
ZA - Sudafrica 24
CW - ???statistics.table.value.countryCode.CW??? 23
EC - Ecuador 22
GT - Guatemala 19
SA - Arabia Saudita 19
ES - Italia 16
PH - Filippine 15
MA - Marocco 14
PR - Porto Rico 13
IR - Iran 12
SV - El Salvador 12
CL - Cile 11
AT - Austria 10
GR - Grecia 10
KE - Kenya 10
LB - Libano 10
PE - Perù 10
EG - Egitto 9
HN - Honduras 9
IL - Israele 9
MY - Malesia 9
TT - Trinidad e Tobago 9
AE - Emirati Arabi Uniti 8
CZ - Repubblica Ceca 8
TH - Thailandia 8
AZ - Azerbaigian 7
BO - Bolivia 7
TN - Tunisia 7
EU - Europa 6
GP - Guadalupe 6
JM - Giamaica 6
LT - Lituania 6
PS - Palestinian Territory 6
PT - Portogallo 6
PY - Paraguay 6
RO - Romania 6
JO - Giordania 5
KZ - Kazakistan 5
NP - Nepal 5
AO - Angola 4
DZ - Algeria 4
ET - Etiopia 4
LY - Libia 4
NI - Nicaragua 4
OM - Oman 4
UY - Uruguay 4
AL - Albania 3
DO - Repubblica Dominicana 3
EE - Estonia 3
IS - Islanda 3
MD - Moldavia 3
PA - Panama 3
RS - Serbia 3
SY - Repubblica araba siriana 3
XK - ???statistics.table.value.countryCode.XK??? 3
AU - Australia 2
BB - Barbados 2
BG - Bulgaria 2
BH - Bahrain 2
BN - Brunei Darussalam 2
BY - Bielorussia 2
HR - Croazia 2
HU - Ungheria 2
KW - Kuwait 2
LK - Sri Lanka 2
ME - Montenegro 2
Totale 15.842
Città #
Singapore 1.063
Chandler 798
Dublin 672
Ashburn 585
Jacksonville 570
Hong Kong 563
San Jose 556
San Mateo 359
Boardman 265
Santa Clara 247
Seoul 247
Council Bluffs 236
Moscow 178
Medford 176
Princeton 175
Lauterbourg 155
Ann Arbor 146
Wilmington 127
Dong Ket 126
Beijing 111
Piscataway 106
Los Angeles 99
Andover 88
Munich 68
New York 68
Altamura 63
Des Moines 58
Ho Chi Minh City 58
Shanghai 57
São Paulo 55
Saint Petersburg 49
Helsinki 48
Lawrence 47
The Dalles 44
Dallas 41
Montreal 38
Perugia 37
Toronto 31
Rome 30
Izmir 29
Woodbridge 29
Atlanta 27
Brussels 27
Hanoi 27
Orem 27
Turku 27
Norwalk 24
Columbus 23
Monmouth Junction 23
Willemstad 23
Brooklyn 22
Frankfurt am Main 22
Milan 22
Tokyo 21
Houston 20
San José 20
Warsaw 20
Chicago 19
Johannesburg 17
Phoenix 17
Tashkent 17
Denver 16
Guatemala City 16
Naples 15
Rio de Janeiro 15
London 14
North Bergen 14
Philadelphia 14
Auburn Hills 13
Poplar 13
Porto Alegre 13
Simi Valley 13
Stockholm 13
Baghdad 12
Bogotá 12
Falls Church 12
San Francisco 11
Amsterdam 10
Avezzano 10
Brasília 10
Chennai 10
San Paolo di Civitate 10
San Salvador 10
Washington 10
Ankara 9
Ardabil 9
Belo Horizonte 9
Bologna 9
Buenos Aires 9
Nairobi 9
Quito 9
Delhi 8
Den Haag 8
Dhaka 8
Lima 8
Mexico City 8
Newark 8
Sorocaba 8
Baku 7
Buffalo 7
Totale 9.362
Nome #
alfa-FOSFATO DI ZIRCONIO COME CATALIZZATORE ETEROGENEO NELLA REAZIONE DI DIELS-ALDER, ACIDO DI BRONSTED CATALIZZATA, DI UNA VARIETA' DI IMMINE CON DIENI 222
Intercalazione e deintercalazione di principi attivi in solidi lamellari. Intercalazione di flucitosina in fosfato di zirconio. 190
Thermal Effect on Mixed Metal (Zn/Al) Layered Double Hydroxides: Direct Modeling of the X-Ray Powder Diffraction Line Shape Through Molecular Dynamics Simulations 161
Fosfati di zirconio variamente funzionalizzati quali matrici solide per l’immobilizzazione della Lipasi da Candida Rugosa 157
Alpha-Zirconium Hydrogen Phosphate and Phosphonates as Heterogeneous Bronsted Acid Catalyst for direct Aza-Diels-Alder Reaction in Water 157
Aza-Diels-Alder reaction of Danishefsky's diene with immines catalyzed by porous α-zirconium hydrogen phosphate and SDS under solvent-free conditions 143
Cu-Zn-Al hydrotalcites as precursors of catalysts for the production of hydrogen from methanol 142
H2 production over Cu/ZnO/Al2O3 hydrotalcites derived catalysts: mechanism and reaction path 137
H2 production by oxidative steam reforming of methanol on hydrotalcite-derived catalysts:mechanism and reaction path. 136
Insersion of copper ions into the brucite layers of Zn-Al hydrotalcite and structural and spectroscopic studies of materials obtained. 130
“Production of hydrogen from oxidative steam reforming of methanol II. Catalytic activity and reaction mechanism on Cu/ZnO/Al2O3 hydrotalcite-derived catalysts” 128
Nanocomposites from polymers and organically modified layered hydrotalcites and zirconium phosphates 127
Anion exchange of methylorange into Zn-Al- synthetic hydrotalcite and photophysical characterization of the intercalates obtained 127
Microwave-assisted intercalation of 1-alkanols and 1,omega-alkanediols into alpha-zirconium phosphate. Evidence of conformational phase transitions in the bimolecular film of alkyl chains 126
Integrated XRPD-MD Study of Thermal effects on mixed metal (Cu/Zn/Al) layered double hydroxides (LDHs), precursors for the OSRM reaction catalysts XXXV Congresso Nazionale della Divisione di Chimica Inorganica della Società Chimica Italiana. 126
Intercalation of antiinflammatory agents in hydrotalcite-like compounds and controlled release formulations. 125
Preparation, Characterization, and Structure of Zirconium Fluoride Alkylamino-N,N-bis Methylphosphonates: A New Design for Layered Zirconium Diphosphonates with a Poorly Hindered Interlayer Region. 124
Intercalation products of clay and of clay-polypropylene composites with rhodamine B. Preparation and characterization by spectroscopic methods and fluorescence confocal microscopy. 124
Characterization of rhodamine B-clay polymer composites by steady state and space-resolved fluorescence 124
Clay based polymeric composites: preparation and quality characterization 123
New functional solids based on zirconium aminophosphonates with different dimensionality 122
Mesoporous Silicate MCM-41 Containing Organic Ultraviolet Ray Absorbents: Preparation, Photostability and in Vitro Release. 7th Intyernational Conference Solid State Chemistry 121
An IR Study of Methanol Steam Reforming over ex-hydrotalcite Cu-Zn-Al catalysts 120
Intercalation and release of antiinflammatory drug diclofenac into nanosized ZnAl hydrotalcite-like compound 120
Layered zirconium phosphates and phosphonates: a large class of versatile functional solids. Recent developments and future prospects 119
Catalytic properties of enzymes adsorbed on layered zirconium phosphate and phosphonates 119
Crystal engineering on novel zirconium phosphonates 117
Intercalation products of clay and of clay-polypropylene composites with rhodamine B. Preparation and characterization by spectroscopic methods and by confocal fluorescence microscopy 117
Fosfati e fosfonati di zirconio in microemulsioni acqua-in-olio: preparazione e caratterizzazione 116
A novel integrated X-ray Powder Diffraction (XRPD) and molecular dynamics (MD) approach for modelling mixed metal ((Zn, Al) layered double hydroxides (LDHs) 116
Photophysical properties of organic dyes intercalated in hydrotalcites. 115
A new photo-functional material constituted by a spirooxazine supported on a zirconium diphosphonate fluoride 115
Allergic sensitization to common pets (cats/dogs) according to different possible modalities of exposure: An Italian Multicenter Study 114
Structural diversity on novel zirconium phosphonates: synthesis and crystal structure from X-ray powder data. 113
Intercalazione e deintercalazione di principi attivi basici nel fosfato di zirconio lamellare 111
New heterogeneous Catalysis for the 4H-chromene derivatives preparation. 110
Adsorption of myoglobin onto porous zirconium phosphate and zirconium benzenephosphonate obtained with template synthesis. 110
Catalytic Activity of Myoglobin Immobilized on Zirconium Phosphonates 110
Direct Aza Diels-Alder Reaction in Water Catalyzed by Layered α-Zirconium Hydrogen Phosphate and SDS 110
Hydrotalcite-like compounds as catalysts in liquid phase organic synthesis I. Knoevenagel condensation promoted by [Ni0.63Al0.27(OH)2](CO3)0.135 109
Recent progress in the synthesis and application of organically modified hydrotalcites 109
Hydrogen production by ethanol steam reforming over Ni catalysts derived from hydrotalcite-like precursors: Catalyst characterization, catalytic activity and reaction path 108
Intercalazione e deintercalazione di principi attivi in solidi lamellari. II. Intercalazione di isoniazide in fosfato acido di zirconio. 108
Synthesis, structural aspects and properties of a new class of functionalised zirconium diphosphonates 107
Hydrotalcite-like Nanocrystals from water-in-oil microemulsions 107
Reaction path of ethanol and acetic acid steam reforming over Ni-Zn-Al catalysts. Flow reaction studies 107
Inorganic ion-exchange pellicles obtained by delamination of α-zirconium phosphate crystals 107
Sintesi di idrotalciti mediante la tecnica delle microemulsioni:caratterizzazione ed applicazioni 105
Zinc-Aluminum Hydrotalcites as Precursors of Basic Catalysts: Preparation, Characterization and Study of the Activation of Methanol 105
A simple and effective method to form metallic nanoparticles onto composites made up of organic polymers and layered inorganic ion exchangers as fillers 105
Intercalation of a nitronyl nitroxide radical into layered inorganic hosts. Preparation and physico-chemical characterization 104
Cu-Zn-Al hydrotalcites as precursors of catalysts for the production of hydrogen from methanol 104
Polymeric compositescostituted by polystyrene and Zn-Al/hydrotalcites grafted with benzenephosphonate. 103
PREPARAZIONE, CARATTERIZZAZIONE ED UTILIZZO IN CATALISI ASIMMETRICA ETEROGENEA DELL'alfa-FOSFATO DI ZIRCONIO FUNZIONALIZZATO CON PROLINA 103
Cu-Zn-Al hydrotalcites as precursors of catalysts for the production of hydrogen from methanol 103
Intercalation and deintercalation of active compounds in layered solids. III. Intercalation of idralazine in alfa-zirconium hydrogen phosphate 103
Mechanism and reaction path study of OSRM process over hydrotalcite-derived catalysts 102
Impiego di idrotalciti quali catalizzatori solidi basici nella sintesi di 4H-cromeni. 102
Hydrotacite-like anionic clays as hosts of molecular anions with bio-pharmaceutical activity 102
Zirconium Sulfophenyl Phosphonate as a Heterogeneous Catalyst in Tetrahydropyranylation of Alcohols and Phenols. 102
Preparation and characterization of hydrotalcite/carboxyadamantane intercalation compounds as fillers of polymeric nanocomposites 102
ac Conductivity of cerium (IV) phosphate in hydrogen form 102
Incorporation of Mg Al hydrotalcite into a biodegradable poly(e-caprolactone) by High Energy Ball Milling 101
Preparation of zirconium phosphates nanoparticles in water in oil microemulsions and their characterization. 101
Sintesi di 4H-cromeni mediata da idrotalciti 99
Hydrotalcite-like nano crystals from Water in Oil Microemulsions 99
Chiral Borane of Layered alfa-Zirconium-N-(m-Solfofenyl)-L-Valine-Phosphonate Methanphosphonate Promoters for the Asymmetric Mukaiyama Aldxol Reaction 99
Sunscreen immobilization on ZnAl-hydrotalcite for new cosmetic formulations. 98
New alpha-Zirconium Hydrogen Phosphates with high surface area as heterogeneous catalyst for Direct Aza-Diels-Alder. 98
Ion exchange and intercalation properties of layered double hydroxides towards halide anions 98
Nanocomposites from polymers and organically modified hydrotalcites. 97
Reazioni di epossidazione di derivati carbonilici alfa,beta-insaturi catalizzate da idrotalciti. 97
POLYMERIC MATERIALS FOR ACTIVE FOOD PACKAGINGS ABLE TO PROTECT AND TO ENHANCE THE QUALITY OF THE CONTAINED FOOD PRODUCTS AND TO REDUCE THEIR PRESERVATION TREATMENTS 97
Layered zirconium sulfophenyl phosphonate as heterogeneous catalyst in the synthesis of pyrazoles and 4,5,6,7,-tetrahydro-1(2)H-indazoles. 96
Nickel versus Cobalt catalysts for hydrogen production by ethanol steam reforming: Ni-Co-Zn-Al catalysts from hydrotalcite-like precursors 96
Layered and pillared Metal(IV) Phosphates and Phosphonates 95
Crystal engineering on new zirconium polyphosphonates. 94
Use of anionic clays for photoprotection and sunscreen photostability: hydrotalcites and phenylbenzimidazole sulphonic acid. 94
Highly protonated zirconium polyphosphates with an open-framework structure 93
New inorganic-organic solid based on zirconium aminopolyphosphonates 93
Preparation and spectroscopic characterisation of intercalation products of clay and of cla-polypropylene composites with Rhodamine B. 92
Protonic conduction of polyhydrated phases obtained from colloidal dispersions of α-zirconium 92
Anti-inflammatory drug incorporation into polymeric nanohydrids for local controlled release. 91
On the Intercalation of the Iodine - Iodide Couple on Layered Double Hydroxides with Different Particle Size 91
H2 production by oxidative steam reforming of methanol on Cu-Zn-Al catalysts derived from layered double hydroxides precursors. 90
MgAl-Hydrotalcite for storage and shielding of photoinstable drugs. Case of diclofenac. 90
Use of anionic clays for photoprotection and sunscreen photostability: hydrotalcites and phenylbenzimidazole sulphonic acid. 90
Space-resolved fluorescence properties of phenolphtalein-hydrotalcite nanocomposites 89
Sintesi di idrotalciti mediante la tecnica delle microemulsioni e loro caratterizzazione 89
New polimeric composites based on poly(epsilon-Caprolactone) and layered Double Hydroxides containing antimicrobial species 89
Molecular dynamics (MD) and powder X rai diffraction (XRD) combined study of the solid state structure of low crystalline mixed-metal (Cu, Zn, Al) layred double hydroxides (LDH) 88
Intercalation and in situ polymerization of acrylate anions into galleries of layered double hydroxides., 88
Intercalation chemistry of hydrotalcite-like compounds: recent progress and application 88
Cu/ZnO/Al2O3 catalysts for oxidative steam reforming of methanol:the role of Cu and the dispersing oxide matrix. 87
Interlayer organization of benzoate anions into ZnAl-hydrotalcite from experimental and molecular modelling data. XXXV Congresso Nazionale della Divisione Società Chimica Inorganica della Società Chimica Italiana. 87
Hydrotalcite-like compounds hosts of molecular anions with biological activity and their use as filler of biodegradable polymers. 86
New open-framework zirconium polyphosphonates 86
Production of hydrogen from oxidative steam reforming of methanol. Part II Catalytic activity of and reaction mechanism on Cu/ZnO/Al2O3 ex-Hydrotalcite catalyst 85
Preparation of interstratified compounds by intercalation and in situ polymerization of acrylate anions into the galleries of layered double hydroxides. 84
Hydrotalcite-like compounds:versatile layered hosts of molecular anions with bio-pharmaceutical activity. 84
Totale 10.944
Categoria #
all - tutte 70.198
article - articoli 0
book - libri 0
conference - conferenze 0
curatela - curatele 0
other - altro 0
patent - brevetti 0
selected - selezionate 0
volume - volumi 0
Totale 70.198


Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2021/2022969 0 0 0 0 31 12 8 458 16 17 151 276
2022/20232.362 225 283 56 193 190 263 5 130 854 9 114 40
2023/2024906 42 88 52 17 11 21 152 37 245 14 97 130
2024/20252.189 44 270 61 94 305 90 36 138 434 139 389 189
2025/20264.350 365 282 169 645 507 319 745 204 572 349 94 99
2026/20271.553 73 155 277 896 152 0 0 0 0 0 0 0
Totale 16.138