COSTANTINO, Umberto
 Distribuzione geografica
Continente #
NA - Nord America 4.129
EU - Europa 3.338
AS - Asia 1.069
SA - Sud America 11
Continente sconosciuto - Info sul continente non disponibili 6
AF - Africa 3
OC - Oceania 1
Totale 8.557
Nazione #
US - Stati Uniti d'America 4.107
UA - Ucraina 1.095
IE - Irlanda 672
SE - Svezia 412
SG - Singapore 374
HK - Hong Kong 344
IT - Italia 281
DE - Germania 204
FI - Finlandia 200
RU - Federazione Russa 166
CN - Cina 127
VN - Vietnam 127
GB - Regno Unito 114
FR - Francia 69
CH - Svizzera 31
KR - Corea 31
BE - Belgio 30
TR - Turchia 28
CA - Canada 15
PL - Polonia 15
UZ - Uzbekistan 12
IR - Iran 10
CZ - Repubblica Ceca 8
NL - Olanda 8
AT - Austria 7
GR - Grecia 7
LB - Libano 7
MX - Messico 7
EU - Europa 6
CO - Colombia 4
EC - Ecuador 3
LT - Lituania 3
RO - Romania 3
BR - Brasile 2
BY - Bielorussia 2
DZ - Algeria 2
IN - India 2
JP - Giappone 2
PT - Portogallo 2
RS - Serbia 2
AU - Australia 1
BG - Bulgaria 1
BO - Bolivia 1
EE - Estonia 1
ES - Italia 1
IL - Israele 1
IS - Islanda 1
ME - Montenegro 1
MM - Myanmar 1
NO - Norvegia 1
NP - Nepal 1
PH - Filippine 1
PS - Palestinian Territory 1
PY - Paraguay 1
SK - Slovacchia (Repubblica Slovacca) 1
ZA - Sudafrica 1
Totale 8.557
Città #
Chandler 798
Dublin 670
Jacksonville 567
San Mateo 359
Hong Kong 340
Singapore 296
Boardman 265
Santa Clara 181
Medford 176
Princeton 175
Ann Arbor 146
Dong Ket 126
Wilmington 126
Andover 88
Ashburn 81
Altamura 63
Des Moines 58
Shanghai 51
Saint Petersburg 49
Lawrence 47
Beijing 45
Perugia 35
Izmir 28
Woodbridge 28
Seoul 27
Brussels 26
Helsinki 26
Los Angeles 25
Norwalk 24
Monmouth Junction 23
Moscow 17
Auburn Hills 13
Simi Valley 13
Falls Church 12
Houston 12
Toronto 12
Rome 11
Avezzano 10
Dallas 10
San Paolo di Civitate 10
Ardabil 9
Philadelphia 9
Den Haag 8
Milan 8
Munich 8
New York 7
San Diego 7
Redwood City 6
Adelfia 5
Chicago 5
Edinburgh 5
Frankfurt Am Main 5
Leawood 5
Radomsko 5
Stockholm 5
Bogotá 4
Brussel 4
Central 4
Frankfurt am Main 4
Kiev 4
Napoli 4
Atri 3
Città Di Castello 3
Gif-sur-yvette 3
Montalto Uffugo 3
Quito 3
Redmond 3
Belgrade 2
Bologna 2
Canela 2
Dearborn 2
Florence 2
Kraków 2
Las Vegas 2
Lausanne 2
Locate Di Triulzi 2
Mexico City 2
Montreal 2
Paris 2
Prague 2
Tappahannock 2
Terni 2
Timisoara 2
Tokyo 2
Tuoro sul Trasimeno 2
Valsamoggia 2
Apricena 1
Asunción 1
Benevento 1
Blaise 1
Bucharest 1
Caravaggio 1
Carson City 1
Castiglione del Lago 1
Cavarzere 1
Cento 1
Cernusco sul Naviglio 1
Cochabamba 1
Corciano 1
Cork 1
Totale 5.260
Nome #
Nanocomposites from polymers and organically modified layered hydrotalcites and zirconium phosphates 98
Fosfati di zirconio variamente funzionalizzati quali matrici solide per l’immobilizzazione della Lipasi da Candida Rugosa 97
Thermal Effect on Mixed Metal (Zn/Al) Layered Double Hydroxides: Direct Modeling of the X-Ray Powder Diffraction Line Shape Through Molecular Dynamics Simulations 93
Intercalazione e deintercalazione di principi attivi in solidi lamellari. Intercalazione di flucitosina in fosfato di zirconio. 92
H2 production over Cu/ZnO/Al2O3 hydrotalcites derived catalysts: mechanism and reaction path 88
alfa-FOSFATO DI ZIRCONIO COME CATALIZZATORE ETEROGENEO NELLA REAZIONE DI DIELS-ALDER, ACIDO DI BRONSTED CATALIZZATA, DI UNA VARIETA' DI IMMINE CON DIENI 85
H2 production by oxidative steam reforming of methanol on hydrotalcite-derived catalysts:mechanism and reaction path. 84
Cu-Zn-Al hydrotalcites as precursors of catalysts for the production of hydrogen from methanol 80
New functional solids based on zirconium aminophosphonates with different dimensionality 80
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 79
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. 78
Aza-Diels-Alder reaction of Danishefsky's diene with immines catalyzed by porous α-zirconium hydrogen phosphate and SDS under solvent-free conditions 78
Layered zirconium phosphates and phosphonates: a large class of versatile functional solids. Recent developments and future prospects 77
Crystal engineering on novel zirconium phosphonates 76
Photophysical properties of organic dyes intercalated in hydrotalcites. 76
Alpha-Zirconium Hydrogen Phosphate and Phosphonates as Heterogeneous Bronsted Acid Catalyst for direct Aza-Diels-Alder Reaction in Water 75
Structural diversity on novel zirconium phosphonates: synthesis and crystal structure from X-ray powder data. 74
Reazioni di epossidazione di derivati carbonilici alfa,beta-insaturi catalizzate da idrotalciti. 71
Preparation of zirconium phosphates nanoparticles in water in oil microemulsions and their characterization. 70
Intercalation products of clay and of clay-polypropylene composites with rhodamine B. Preparation and characterization by spectroscopic methods and by confocal fluorescence microscopy 69
Hydrotalcite-like compounds as catalysts in liquid phase organic synthesis I. Knoevenagel condensation promoted by [Ni0.63Al0.27(OH)2](CO3)0.135 69
Zirconium Sulfophenyl Phosphonate as a Heterogeneous Catalyst in Tetrahydropyranylation of Alcohols and Phenols. 69
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. 68
PREPARAZIONE, CARATTERIZZAZIONE ED UTILIZZO IN CATALISI ASIMMETRICA ETEROGENEA DELL'alfa-FOSFATO DI ZIRCONIO FUNZIONALIZZATO CON PROLINA 68
An IR Study of Methanol Steam Reforming over ex-hydrotalcite Cu-Zn-Al catalysts 67
Synthesis, structural aspects and properties of a new class of functionalised zirconium diphosphonates 66
Mechanism and reaction path study of OSRM process over hydrotalcite-derived catalysts 66
Intercalation products of clay and of clay-polypropylene composites with rhodamine B. Preparation and characterization by spectroscopic methods and fluorescence confocal microscopy. 66
Characterization of rhodamine B-clay polymer composites by steady state and space-resolved fluorescence 66
Fosfati e fosfonati di zirconio in microemulsioni acqua-in-olio: preparazione e caratterizzazione 66
Impiego di idrotalciti quali catalizzatori solidi basici nella sintesi di 4H-cromeni. 65
Sintesi di 4H-cromeni mediata da idrotalciti 64
Insersion of copper ions into the brucite layers of Zn-Al hydrotalcite and structural and spectroscopic studies of materials obtained. 64
Nanocomposites from polymers and organically modified hydrotalcites. 64
Hydrotacite-like anionic clays as hosts of molecular anions with bio-pharmaceutical activity 64
Clay based polymeric composites: preparation and quality characterization 64
Anion exchange of methylorange into Zn-Al- synthetic hydrotalcite and photophysical characterization of the intercalates obtained 64
Incorporation of Mg Al hydrotalcite into a biodegradable poly(e-caprolactone) by High Energy Ball Milling 62
Mesoporous Silicate MCM-41 Containing Organic Ultraviolet Ray Absorbents: Preparation, Photostability and in Vitro Release. 7th Intyernational Conference Solid State Chemistry 62
Adsorption of myoglobin onto porous zirconium phosphate and zirconium benzenephosphonate obtained with template synthesis. 62
Cu-Zn-Al hydrotalcites as precursors of catalysts for the production of hydrogen from methanol 62
Inorganic ion-exchange pellicles obtained by delamination of α-zirconium phosphate crystals 62
New heterogeneous Catalysis for the 4H-chromene derivatives preparation. 61
Anti-inflammatory drug incorporation into polymeric nanohydrids for local controlled release. 61
New inorganic-organic solid based on zirconium aminopolyphosphonates 60
Preparation and spectroscopic characterisation of intercalation products of clay and of cla-polypropylene composites with Rhodamine B. 59
Layered zirconium sulfophenyl phosphonate as heterogeneous catalyst in the synthesis of pyrazoles and 4,5,6,7,-tetrahydro-1(2)H-indazoles. 59
Intercalation chemistry of hydrotalcite-like compounds: recent progress and application 59
Intercalation of a nitronyl nitroxide radical into layered inorganic hosts. Preparation and physico-chemical characterization 58
Layered and pillared Metal(IV) Phosphates and Phosphonates 58
Protonic conduction of polyhydrated phases obtained from colloidal dispersions of α-zirconium 58
Sunscreen immobilization on ZnAl-hydrotalcite for new cosmetic formulations. 57
Cu/ZnO/Al2O3 catalysts for oxidative steam reforming of methanol:the role of Cu and the dispersing oxide matrix. 57
Hydrotalcite-like Nanocrystals from water-in-oil microemulsions 57
Allergic sensitization to common pets (cats/dogs) according to different possible modalities of exposure: An Italian Multicenter Study 57
Preparation of interstratified compounds by intercalation and in situ polymerization of acrylate anions into the galleries of layered double hydroxides. 56
Polymeric compositescostituted by polystyrene and Zn-Al/hydrotalcites grafted with benzenephosphonate. 56
MgAl-Hydrotalcite for storage and shielding of photoinstable drugs. Case of diclofenac. 56
Intercalation and release of antiinflammatory drug diclofenac into nanosized ZnAl hydrotalcite-like compound 56
Intercalazione e deintercalazione di principi attivi basici nel fosfato di zirconio lamellare 56
Hydrotalcite-like compounds:versatile layered hosts of molecular anions with bio-pharmaceutical activity. 55
Production of hydrogen from oxidative steam reforming of methanol. Part II Catalytic activity of and reaction mechanism on Cu/ZnO/Al2O3 ex-Hydrotalcite catalyst 55
Intercalazione e deintercalazione di principi attivi in solidi lamellari. II. Intercalazione di isoniazide in fosfato acido di zirconio. 55
H2 production by oxidative steam reforming of methanol on Cu-Zn-Al catalysts derived from layered double hydroxides precursors. 54
Use of anionic clays for photoprotection and sunscreen photostability: hydrotalcites and phenylbenzimidazole sulphonic acid. 54
Sintesi di idrotalciti mediante la tecnica delle microemulsioni e loro caratterizzazione 54
Zinc-Aluminum Hydrotalcites as Precursors of Basic Catalysts: Preparation, Characterization and Study of the Activation of Methanol 54
Crystal engineering on new zirconium polyphosphonates. 53
On the Intercalation of the Iodine - Iodide Couple on Layered Double Hydroxides with Different Particle Size 53
ac Conductivity of cerium (IV) phosphate in hydrogen form 53
Intercalation and in situ polymerization of acrylate anions into galleries of layered double hydroxides., 52
Fosfati e Fosfonati di Zirconio Lamellari come Catalizzatori in Fase Eterognea nella sintesi organica. 52
Catalytic properties of enzymes adsorbed on layered zirconium phosphate and phosphonates 52
Preparation and characterization of hydrotalcite/carboxyadamantane intercalation compounds as fillers of polymeric nanocomposites 52
Intercalation of antiinflammatory agents in hydrotalcite-like compounds and controlled release formulations. 52
Flurbiprofen immobilization in MgAl-hydrotalcite and in vitro relase studies. 51
Hydrotalcite-like compounds hosts of molecular anions with biological activity and their use as filler of biodegradable polymers. 51
New open-framework zirconium polyphosphonates 51
New alpha-Zirconium Hydrogen Phosphates with high surface area as heterogeneous catalyst for Direct Aza-Diels-Alder. 51
Hydrogen production by ethanol steam reforming over Ni catalysts derived from hydrotalcite-like precursors: Catalyst characterization, catalytic activity and reaction path 51
Cu-Zn-Al hydrotalcites as precursors of catalysts for the production of hydrogen from methanol 51
Nickel versus Cobalt catalysts for hydrogen production by ethanol steam reforming: Ni-Co-Zn-Al catalysts from hydrotalcite-like precursors 50
“Production of hydrogen from oxidative steam reforming of methanol II. Catalytic activity and reaction mechanism on Cu/ZnO/Al2O3 hydrotalcite-derived catalysts” 50
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 50
Sintesi di idrotalciti mediante la tecnica delle microemulsioni:caratterizzazione ed applicazioni 50
Chiral Borane of Layered alfa-Zirconium-N-(m-Solfofenyl)-L-Valine-Phosphonate Methanphosphonate Promoters for the Asymmetric Mukaiyama Aldxol Reaction 50
A simple and effective method to form metallic nanoparticles onto composites made up of organic polymers and layered inorganic ion exchangers as fillers 50
New open-framework zirconium polyphosphonates 50
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) 49
Heterogeneous catalysis in trimethylsilylation of alcohols and phenols by zirconium sulfophenyl phosphonate 49
Recent progress in the synthesis and application of organically modified hydrotalcites 49
Highly protonated zirconium polyphosphates with an open-framework structure 48
Hydrotalcite-like nano crystals from Water in Oil Microemulsions 48
Use of anionic clays for photoprotection and sunscreen photostability: hydrotalcites and phenylbenzimidazole sulphonic acid. 48
Intercalation and deintercalation of active compounds in layered solids. III. Intercalation of idralazine in alfa-zirconium hydrogen phosphate 48
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. 47
Heterogeneous Catalysis in Liquid Phase Organic Synthesis, Promoted by Layered Zirconium Phosphates and Phosphonates 47
Composite Nafion Membranes based on PWA-Zirconia for PEFCs Operating at Medium Temperature 47
New polimeric composites based on poly(epsilon-Caprolactone) and layered Double Hydroxides containing antimicrobial species 47
A novel integrated X-ray Powder Diffraction (XRPD) and molecular dynamics (MD) approach for modelling mixed metal ((Zn, Al) layered double hydroxides (LDHs) 46
Totale 6.120
Categoria #
all - tutte 35.489
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 35.489


Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2019/2020673 0 0 0 0 144 7 153 4 165 38 12 150
2020/20211.695 10 160 55 168 497 77 159 3 197 52 165 152
2021/20221.410 65 245 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
2024/2025772 44 270 61 94 303 0 0 0 0 0 0 0
Totale 8.818