COSTANTINO, Umberto
 Distribuzione geografica
Continente #
NA - Nord America 5.896
EU - Europa 4.381
AS - Asia 3.645
SA - Sud America 657
Continente sconosciuto - Info sul continente non disponibili 270
AF - Africa 92
OC - Oceania 3
Totale 14.944
Nazione #
US - Stati Uniti d'America 5.743
SG - Singapore 1.569
UA - Ucraina 1.107
IE - Irlanda 674
RU - Federazione Russa 599
HK - Hong Kong 569
BR - Brasile 474
CN - Cina 455
SE - Svezia 422
IT - Italia 380
DE - Germania 300
VN - Vietnam 280
FR - Francia 265
KR - Corea 252
FI - Finlandia 249
GB - Regno Unito 165
BD - Bangladesh 94
CA - Canada 82
IN - India 75
TR - Turchia 63
AR - Argentina 61
MX - Messico 41
PL - Polonia 37
UZ - Uzbekistan 35
IQ - Iraq 34
CH - Svizzera 32
BE - Belgio 31
CO - Colombia 31
ID - Indonesia 30
JP - Giappone 29
NL - Olanda 29
VE - Venezuela 29
PK - Pakistan 25
ZA - Sudafrica 24
EC - Ecuador 22
SA - Arabia Saudita 19
PH - Filippine 15
ES - Italia 14
MA - Marocco 14
IR - Iran 12
CL - Cile 11
AT - Austria 10
GR - Grecia 10
KE - Kenya 10
LB - Libano 10
PE - Perù 10
EG - Egitto 9
MY - Malesia 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
LT - Lituania 6
PS - Palestinian Territory 6
PT - Portogallo 6
PY - Paraguay 6
RO - Romania 6
CR - Costa Rica 5
IL - Israele 5
JM - Giamaica 5
JO - Giordania 5
KZ - Kazakistan 5
NP - Nepal 5
AO - Angola 4
DZ - Algeria 4
ET - Etiopia 4
HN - Honduras 4
LY - Libia 4
OM - Oman 4
UY - Uruguay 4
AL - Albania 3
DO - Repubblica Dominicana 3
GT - Guatemala 3
IS - Islanda 3
MD - Moldavia 3
PA - Panama 3
RS - Serbia 3
SV - El Salvador 3
SY - Repubblica araba siriana 3
XK - ???statistics.table.value.countryCode.XK??? 3
AU - Australia 2
BG - Bulgaria 2
BN - Brunei Darussalam 2
BY - Bielorussia 2
HR - Croazia 2
HU - Ungheria 2
KW - Kuwait 2
LK - Sri Lanka 2
ME - Montenegro 2
MK - Macedonia 2
MM - Myanmar 2
MU - Mauritius 2
SN - Senegal 2
AD - Andorra 1
AM - Armenia 1
BA - Bosnia-Erzegovina 1
BB - Barbados 1
Totale 14.659
Città #
Singapore 1.063
Chandler 798
Dublin 672
Jacksonville 569
Hong Kong 562
San Jose 505
San Mateo 359
Ashburn 329
Boardman 265
Seoul 247
Santa Clara 224
Moscow 178
Medford 176
Princeton 175
Lauterbourg 155
Ann Arbor 146
Wilmington 127
Dong Ket 126
Beijing 111
Piscataway 106
Los Angeles 97
Andover 88
Munich 68
Altamura 63
New York 63
Des Moines 58
Ho Chi Minh City 58
Shanghai 57
Saint Petersburg 49
Helsinki 48
Lawrence 47
São Paulo 44
The Dalles 44
Perugia 37
Dallas 32
Montreal 31
Izmir 29
Woodbridge 29
Brussels 27
Hanoi 27
Orem 27
Turku 27
Norwalk 24
Toronto 24
Columbus 23
Monmouth Junction 23
Frankfurt am Main 22
Tokyo 21
Houston 20
Rome 20
Warsaw 20
Brooklyn 18
Chicago 17
Council Bluffs 17
Johannesburg 17
Tashkent 17
Phoenix 16
Atlanta 15
Milan 15
Rio de Janeiro 15
Auburn Hills 13
Denver 13
London 13
Poplar 13
Porto Alegre 13
Simi Valley 13
Stockholm 13
Baghdad 12
Bogotá 12
Falls Church 12
Philadelphia 12
Amsterdam 10
Avezzano 10
Chennai 10
Naples 10
San Paolo di Civitate 10
Ankara 9
Ardabil 9
Belo Horizonte 9
Brasília 9
Buenos Aires 9
Nairobi 9
Quito 9
San Francisco 9
Delhi 8
Den Haag 8
Dhaka 8
Lima 8
Mexico City 8
Sorocaba 8
Baku 7
Istanbul 7
San Diego 7
Santo André 7
Tianjin 7
Buffalo 6
Charlotte 6
Da Nang 6
Falkenstein 6
Redwood City 6
Totale 8.661
Nome #
alfa-FOSFATO DI ZIRCONIO COME CATALIZZATORE ETEROGENEO NELLA REAZIONE DI DIELS-ALDER, ACIDO DI BRONSTED CATALIZZATA, DI UNA VARIETA' DI IMMINE CON DIENI 209
Intercalazione e deintercalazione di principi attivi in solidi lamellari. Intercalazione di flucitosina in fosfato di zirconio. 174
Thermal Effect on Mixed Metal (Zn/Al) Layered Double Hydroxides: Direct Modeling of the X-Ray Powder Diffraction Line Shape Through Molecular Dynamics Simulations 150
Alpha-Zirconium Hydrogen Phosphate and Phosphonates as Heterogeneous Bronsted Acid Catalyst for direct Aza-Diels-Alder Reaction in Water 142
Fosfati di zirconio variamente funzionalizzati quali matrici solide per l’immobilizzazione della Lipasi da Candida Rugosa 135
Aza-Diels-Alder reaction of Danishefsky's diene with immines catalyzed by porous α-zirconium hydrogen phosphate and SDS under solvent-free conditions 135
Cu-Zn-Al hydrotalcites as precursors of catalysts for the production of hydrogen from methanol 130
H2 production over Cu/ZnO/Al2O3 hydrotalcites derived catalysts: mechanism and reaction path 127
Insersion of copper ions into the brucite layers of Zn-Al hydrotalcite and structural and spectroscopic studies of materials obtained. 123
H2 production by oxidative steam reforming of methanol on hydrotalcite-derived catalysts:mechanism and reaction path. 122
Nanocomposites from polymers and organically modified layered hydrotalcites and zirconium phosphates 120
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. 120
Intercalation products of clay and of clay-polypropylene composites with rhodamine B. Preparation and characterization by spectroscopic methods and fluorescence confocal microscopy. 119
Characterization of rhodamine B-clay polymer composites by steady state and space-resolved fluorescence 118
Anion exchange of methylorange into Zn-Al- synthetic hydrotalcite and photophysical characterization of the intercalates obtained 118
Clay based polymeric composites: preparation and quality characterization 115
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. 114
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 114
Intercalation products of clay and of clay-polypropylene composites with rhodamine B. Preparation and characterization by spectroscopic methods and by confocal fluorescence microscopy 114
An IR Study of Methanol Steam Reforming over ex-hydrotalcite Cu-Zn-Al catalysts 113
Intercalation and release of antiinflammatory drug diclofenac into nanosized ZnAl hydrotalcite-like compound 113
Crystal engineering on novel zirconium phosphonates 112
Layered zirconium phosphates and phosphonates: a large class of versatile functional solids. Recent developments and future prospects 112
New functional solids based on zirconium aminophosphonates with different dimensionality 111
“Production of hydrogen from oxidative steam reforming of methanol II. Catalytic activity and reaction mechanism on Cu/ZnO/Al2O3 hydrotalcite-derived catalysts” 111
Photophysical properties of organic dyes intercalated in hydrotalcites. 110
Allergic sensitization to common pets (cats/dogs) according to different possible modalities of exposure: An Italian Multicenter Study 108
Structural diversity on novel zirconium phosphonates: synthesis and crystal structure from X-ray powder data. 107
New heterogeneous Catalysis for the 4H-chromene derivatives preparation. 106
Intercalation of antiinflammatory agents in hydrotalcite-like compounds and controlled release formulations. 106
A novel integrated X-ray Powder Diffraction (XRPD) and molecular dynamics (MD) approach for modelling mixed metal ((Zn, Al) layered double hydroxides (LDHs) 104
Adsorption of myoglobin onto porous zirconium phosphate and zirconium benzenephosphonate obtained with template synthesis. 104
Catalytic Activity of Myoglobin Immobilized on Zirconium Phosphonates 104
Synthesis, structural aspects and properties of a new class of functionalised zirconium diphosphonates 103
Hydrogen production by ethanol steam reforming over Ni catalysts derived from hydrotalcite-like precursors: Catalyst characterization, catalytic activity and reaction path 103
A new photo-functional material constituted by a spirooxazine supported on a zirconium diphosphonate fluoride 103
Fosfati e fosfonati di zirconio in microemulsioni acqua-in-olio: preparazione e caratterizzazione 102
Hydrotalcite-like compounds as catalysts in liquid phase organic synthesis I. Knoevenagel condensation promoted by [Ni0.63Al0.27(OH)2](CO3)0.135 101
Direct Aza Diels-Alder Reaction in Water Catalyzed by Layered α-Zirconium Hydrogen Phosphate and SDS 101
Polymeric compositescostituted by polystyrene and Zn-Al/hydrotalcites grafted with benzenephosphonate. 100
Mesoporous Silicate MCM-41 Containing Organic Ultraviolet Ray Absorbents: Preparation, Photostability and in Vitro Release. 7th Intyernational Conference Solid State Chemistry 100
Recent progress in the synthesis and application of organically modified hydrotalcites 100
Reaction path of ethanol and acetic acid steam reforming over Ni-Zn-Al catalysts. Flow reaction studies 100
Cu-Zn-Al hydrotalcites as precursors of catalysts for the production of hydrogen from methanol 100
A simple and effective method to form metallic nanoparticles onto composites made up of organic polymers and layered inorganic ion exchangers as fillers 99
Intercalation of a nitronyl nitroxide radical into layered inorganic hosts. Preparation and physico-chemical characterization 98
Impiego di idrotalciti quali catalizzatori solidi basici nella sintesi di 4H-cromeni. 98
PREPARAZIONE, CARATTERIZZAZIONE ED UTILIZZO IN CATALISI ASIMMETRICA ETEROGENEA DELL'alfa-FOSFATO DI ZIRCONIO FUNZIONALIZZATO CON PROLINA 98
Catalytic properties of enzymes adsorbed on layered zirconium phosphate and phosphonates 98
Cu-Zn-Al hydrotalcites as precursors of catalysts for the production of hydrogen from methanol 98
Inorganic ion-exchange pellicles obtained by delamination of α-zirconium phosphate crystals 98
ac Conductivity of cerium (IV) phosphate in hydrogen form 98
Incorporation of Mg Al hydrotalcite into a biodegradable poly(e-caprolactone) by High Energy Ball Milling 97
Preparation of zirconium phosphates nanoparticles in water in oil microemulsions and their characterization. 97
Intercalation and deintercalation of active compounds in layered solids. III. Intercalation of idralazine in alfa-zirconium hydrogen phosphate 97
Mechanism and reaction path study of OSRM process over hydrotalcite-derived catalysts 96
Hydrotacite-like anionic clays as hosts of molecular anions with bio-pharmaceutical activity 96
Hydrotalcite-like Nanocrystals from water-in-oil microemulsions 96
Sintesi di 4H-cromeni mediata da idrotalciti 95
New alpha-Zirconium Hydrogen Phosphates with high surface area as heterogeneous catalyst for Direct Aza-Diels-Alder. 95
Zirconium Sulfophenyl Phosphonate as a Heterogeneous Catalyst in Tetrahydropyranylation of Alcohols and Phenols. 95
Chiral Borane of Layered alfa-Zirconium-N-(m-Solfofenyl)-L-Valine-Phosphonate Methanphosphonate Promoters for the Asymmetric Mukaiyama Aldxol Reaction 95
Intercalazione e deintercalazione di principi attivi basici nel fosfato di zirconio lamellare 95
Nanocomposites from polymers and organically modified hydrotalcites. 94
Reazioni di epossidazione di derivati carbonilici alfa,beta-insaturi catalizzate da idrotalciti. 94
Zinc-Aluminum Hydrotalcites as Precursors of Basic Catalysts: Preparation, Characterization and Study of the Activation of Methanol 94
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 93
Layered zirconium sulfophenyl phosphonate as heterogeneous catalyst in the synthesis of pyrazoles and 4,5,6,7,-tetrahydro-1(2)H-indazoles. 92
Intercalazione e deintercalazione di principi attivi in solidi lamellari. II. Intercalazione di isoniazide in fosfato acido di zirconio. 92
Preparation and characterization of hydrotalcite/carboxyadamantane intercalation compounds as fillers of polymeric nanocomposites 91
Sunscreen immobilization on ZnAl-hydrotalcite for new cosmetic formulations. 90
Layered and pillared Metal(IV) Phosphates and Phosphonates 90
Highly protonated zirconium polyphosphates with an open-framework structure 89
Sintesi di idrotalciti mediante la tecnica delle microemulsioni:caratterizzazione ed applicazioni 89
Ion exchange and intercalation properties of layered double hydroxides towards halide anions 89
Crystal engineering on new zirconium polyphosphonates. 88
Nickel versus Cobalt catalysts for hydrogen production by ethanol steam reforming: Ni-Co-Zn-Al catalysts from hydrotalcite-like precursors 88
Preparation and spectroscopic characterisation of intercalation products of clay and of cla-polypropylene composites with Rhodamine B. 87
Hydrotalcite-like nano crystals from Water in Oil Microemulsions 87
Use of anionic clays for photoprotection and sunscreen photostability: hydrotalcites and phenylbenzimidazole sulphonic acid. 87
Protonic conduction of polyhydrated phases obtained from colloidal dispersions of α-zirconium 87
H2 production by oxidative steam reforming of methanol on Cu-Zn-Al catalysts derived from layered double hydroxides precursors. 86
New inorganic-organic solid based on zirconium aminopolyphosphonates 86
MgAl-Hydrotalcite for storage and shielding of photoinstable drugs. Case of diclofenac. 86
Anti-inflammatory drug incorporation into polymeric nanohydrids for local controlled release. 86
Sintesi di idrotalciti mediante la tecnica delle microemulsioni e loro caratterizzazione 86
On the Intercalation of the Iodine - Iodide Couple on Layered Double Hydroxides with Different Particle Size 85
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) 84
Space-resolved fluorescence properties of phenolphtalein-hydrotalcite nanocomposites 84
New polimeric composites based on poly(epsilon-Caprolactone) and layered Double Hydroxides containing antimicrobial species 84
Intercalation and in situ polymerization of acrylate anions into galleries of layered double hydroxides., 83
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. 83
Intercalation chemistry of hydrotalcite-like compounds: recent progress and application 82
Production of hydrogen from oxidative steam reforming of methanol. Part II Catalytic activity of and reaction mechanism on Cu/ZnO/Al2O3 ex-Hydrotalcite catalyst 82
Use of anionic clays for photoprotection and sunscreen photostability: hydrotalcites and phenylbenzimidazole sulphonic acid. 81
Composite Nafion Membranes based on PWA-Zirconia for PEFCs Operating at Medium Temperature 81
Hydrotalcite-like compounds:versatile layered hosts of molecular anions with bio-pharmaceutical activity. 80
Cu/ZnO/Al2O3 catalysts for oxidative steam reforming of methanol:the role of Cu and the dispersing oxide matrix. 80
Hydrotalcite-like compounds hosts of molecular anions with biological activity and their use as filler of biodegradable polymers. 80
New open-framework zirconium polyphosphonates 80
Totale 10.172
Categoria #
all - tutte 66.445
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 66.445


Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2021/20221.100 0 0 45 86 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
2026/2027359 73 155 131 0 0 0 0 0 0 0 0 0
Totale 14.944