COSTANTINO, Umberto
 Distribuzione geografica
Continente #
NA - Nord America 3.644
EU - Europa 3.289
AS - Asia 874
SA - Sud America 11
Continente sconosciuto - Info sul continente non disponibili 6
AF - Africa 3
Totale 7.827
Nazione #
US - Stati Uniti d'America 3.625
UA - Ucraina 1.095
IE - Irlanda 672
SE - Svezia 412
HK - Hong Kong 344
IT - Italia 256
FI - Finlandia 194
DE - Germania 193
SG - Singapore 187
RU - Federazione Russa 166
VN - Vietnam 127
CN - Cina 119
GB - Regno Unito 113
FR - Francia 69
CH - Svizzera 31
KR - Corea 31
BE - Belgio 30
TR - Turchia 28
PL - Polonia 15
CA - Canada 13
UZ - Uzbekistan 12
IR - Iran 10
CZ - Repubblica Ceca 8
NL - Olanda 8
AT - Austria 7
GR - Grecia 7
LB - Libano 7
EU - Europa 6
MX - Messico 6
CO - Colombia 4
EC - Ecuador 3
RO - Romania 3
BR - Brasile 2
DZ - Algeria 2
IN - India 2
JP - Giappone 2
RS - Serbia 2
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
PT - Portogallo 1
PY - Paraguay 1
SK - Slovacchia (Repubblica Slovacca) 1
ZA - Sudafrica 1
Totale 7.827
Città #
Chandler 798
Dublin 670
Jacksonville 567
San Mateo 359
Hong Kong 340
Medford 176
Princeton 175
Ann Arbor 146
Dong Ket 126
Wilmington 126
Singapore 125
Andover 88
Altamura 63
Ashburn 63
Des Moines 58
Saint Petersburg 49
Shanghai 48
Lawrence 47
Beijing 45
Perugia 34
Izmir 28
Woodbridge 28
Seoul 27
Brussels 26
Los Angeles 25
Norwalk 24
Monmouth Junction 23
Boardman 22
Helsinki 20
Moscow 17
Auburn Hills 13
Simi Valley 13
Falls Church 12
Houston 12
Toronto 11
Avezzano 10
San Paolo di Civitate 10
Ardabil 9
Philadelphia 9
Den Haag 8
New York 7
San Diego 7
Milan 6
Redwood City 6
Rome 6
Adelfia 5
Chicago 5
Edinburgh 5
Frankfurt Am Main 5
Leawood 5
Radomsko 5
Stockholm 5
Bogotá 4
Brussel 4
Central 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
Carson City 1
Castiglione del Lago 1
Cavarzere 1
Cento 1
Cernusco sul Naviglio 1
Cochabamba 1
Corciano 1
Cork 1
Costabissara 1
Dallas 1
Easton 1
Enniscorthy 1
Fermo 1
Totale 4.611
Nome #
Nanocomposites from polymers and organically modified layered hydrotalcites and zirconium phosphates 92
Fosfati di zirconio variamente funzionalizzati quali matrici solide per l’immobilizzazione della Lipasi da Candida Rugosa 89
Thermal Effect on Mixed Metal (Zn/Al) Layered Double Hydroxides: Direct Modeling of the X-Ray Powder Diffraction Line Shape Through Molecular Dynamics Simulations 87
H2 production over Cu/ZnO/Al2O3 hydrotalcites derived catalysts: mechanism and reaction path 82
H2 production by oxidative steam reforming of methanol on hydrotalcite-derived catalysts:mechanism and reaction path. 79
Intercalazione e deintercalazione di principi attivi in solidi lamellari. Intercalazione di flucitosina in fosfato di zirconio. 78
New functional solids based on zirconium aminophosphonates with different dimensionality 76
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 75
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. 73
Photophysical properties of organic dyes intercalated in hydrotalcites. 72
Crystal engineering on novel zirconium phosphonates 71
Cu-Zn-Al hydrotalcites as precursors of catalysts for the production of hydrogen from methanol 70
alfa-FOSFATO DI ZIRCONIO COME CATALIZZATORE ETEROGENEO NELLA REAZIONE DI DIELS-ALDER, ACIDO DI BRONSTED CATALIZZATA, DI UNA VARIETA' DI IMMINE CON DIENI 70
Aza-Diels-Alder reaction of Danishefsky's diene with immines catalyzed by porous α-zirconium hydrogen phosphate and SDS under solvent-free conditions 70
Alpha-Zirconium Hydrogen Phosphate and Phosphonates as Heterogeneous Bronsted Acid Catalyst for direct Aza-Diels-Alder Reaction in Water 69
Structural diversity on novel zirconium phosphonates: synthesis and crystal structure from X-ray powder data. 68
Layered zirconium phosphates and phosphonates: a large class of versatile functional solids. Recent developments and future prospects 68
Preparation of zirconium phosphates nanoparticles in water in oil microemulsions and their characterization. 66
Reazioni di epossidazione di derivati carbonilici alfa,beta-insaturi catalizzate da idrotalciti. 66
Hydrotalcite-like compounds as catalysts in liquid phase organic synthesis I. Knoevenagel condensation promoted by [Ni0.63Al0.27(OH)2](CO3)0.135 66
Intercalation products of clay and of clay-polypropylene composites with rhodamine B. Preparation and characterization by spectroscopic methods and by confocal fluorescence microscopy 64
PREPARAZIONE, CARATTERIZZAZIONE ED UTILIZZO IN CATALISI ASIMMETRICA ETEROGENEA DELL'alfa-FOSFATO DI ZIRCONIO FUNZIONALIZZATO CON PROLINA 64
Zirconium Sulfophenyl Phosphonate as a Heterogeneous Catalyst in Tetrahydropyranylation of Alcohols and Phenols. 63
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. 62
Synthesis, structural aspects and properties of a new class of functionalised zirconium diphosphonates 61
Impiego di idrotalciti quali catalizzatori solidi basici nella sintesi di 4H-cromeni. 61
Intercalation products of clay and of clay-polypropylene composites with rhodamine B. Preparation and characterization by spectroscopic methods and fluorescence confocal microscopy. 61
Characterization of rhodamine B-clay polymer composites by steady state and space-resolved fluorescence 61
Anion exchange of methylorange into Zn-Al- synthetic hydrotalcite and photophysical characterization of the intercalates obtained 61
Nanocomposites from polymers and organically modified hydrotalcites. 60
Fosfati e fosfonati di zirconio in microemulsioni acqua-in-olio: preparazione e caratterizzazione 60
Mechanism and reaction path study of OSRM process over hydrotalcite-derived catalysts 59
Hydrotacite-like anionic clays as hosts of molecular anions with bio-pharmaceutical activity 59
Clay based polymeric composites: preparation and quality characterization 59
Adsorption of myoglobin onto porous zirconium phosphate and zirconium benzenephosphonate obtained with template synthesis. 59
An IR Study of Methanol Steam Reforming over ex-hydrotalcite Cu-Zn-Al catalysts 59
Sintesi di 4H-cromeni mediata da idrotalciti 58
Anti-inflammatory drug incorporation into polymeric nanohydrids for local controlled release. 58
Incorporation of Mg Al hydrotalcite into a biodegradable poly(e-caprolactone) by High Energy Ball Milling 57
Inorganic ion-exchange pellicles obtained by delamination of α-zirconium phosphate crystals 57
New inorganic-organic solid based on zirconium aminopolyphosphonates 56
Cu-Zn-Al hydrotalcites as precursors of catalysts for the production of hydrogen from methanol 56
Preparation and spectroscopic characterisation of intercalation products of clay and of cla-polypropylene composites with Rhodamine B. 55
New heterogeneous Catalysis for the 4H-chromene derivatives preparation. 55
Insersion of copper ions into the brucite layers of Zn-Al hydrotalcite and structural and spectroscopic studies of materials obtained. 55
Intercalation chemistry of hydrotalcite-like compounds: recent progress and application 55
Intercalation of a nitronyl nitroxide radical into layered inorganic hosts. Preparation and physico-chemical characterization 54
Layered zirconium sulfophenyl phosphonate as heterogeneous catalyst in the synthesis of pyrazoles and 4,5,6,7,-tetrahydro-1(2)H-indazoles. 54
Mesoporous Silicate MCM-41 Containing Organic Ultraviolet Ray Absorbents: Preparation, Photostability and in Vitro Release. 7th Intyernational Conference Solid State Chemistry 54
Layered and pillared Metal(IV) Phosphates and Phosphonates 54
Protonic conduction of polyhydrated phases obtained from colloidal dispersions of α-zirconium 54
Cu/ZnO/Al2O3 catalysts for oxidative steam reforming of methanol:the role of Cu and the dispersing oxide matrix. 53
Allergic sensitization to common pets (cats/dogs) according to different possible modalities of exposure: An Italian Multicenter Study 53
Preparation of interstratified compounds by intercalation and in situ polymerization of acrylate anions into the galleries of layered double hydroxides. 52
Sunscreen immobilization on ZnAl-hydrotalcite for new cosmetic formulations. 52
Intercalation and release of antiinflammatory drug diclofenac into nanosized ZnAl hydrotalcite-like compound 52
Polymeric compositescostituted by polystyrene and Zn-Al/hydrotalcites grafted with benzenephosphonate. 51
MgAl-Hydrotalcite for storage and shielding of photoinstable drugs. Case of diclofenac. 51
Hydrotalcite-like Nanocrystals from water-in-oil microemulsions 51
H2 production by oxidative steam reforming of methanol on Cu-Zn-Al catalysts derived from layered double hydroxides precursors. 50
Hydrotalcite-like compounds:versatile layered hosts of molecular anions with bio-pharmaceutical activity. 50
Production of hydrogen from oxidative steam reforming of methanol. Part II Catalytic activity of and reaction mechanism on Cu/ZnO/Al2O3 ex-Hydrotalcite catalyst 50
Sintesi di idrotalciti mediante la tecnica delle microemulsioni e loro caratterizzazione 50
Zinc-Aluminum Hydrotalcites as Precursors of Basic Catalysts: Preparation, Characterization and Study of the Activation of Methanol 50
On the Intercalation of the Iodine - Iodide Couple on Layered Double Hydroxides with Different Particle Size 50
Use of anionic clays for photoprotection and sunscreen photostability: hydrotalcites and phenylbenzimidazole sulphonic acid. 49
Preparation and characterization of hydrotalcite/carboxyadamantane intercalation compounds as fillers of polymeric nanocomposites 49
Crystal engineering on new zirconium polyphosphonates. 48
Intercalation and in situ polymerization of acrylate anions into galleries of layered double hydroxides., 48
Fosfati e Fosfonati di Zirconio Lamellari come Catalizzatori in Fase Eterognea nella sintesi organica. 48
ac Conductivity of cerium (IV) phosphate in hydrogen form 48
Intercalazione e deintercalazione di principi attivi basici nel fosfato di zirconio lamellare 48
Flurbiprofen immobilization in MgAl-hydrotalcite and in vitro relase studies. 47
Hydrotalcite-like compounds hosts of molecular anions with biological activity and their use as filler of biodegradable polymers. 47
New open-framework zirconium polyphosphonates 47
New alpha-Zirconium Hydrogen Phosphates with high surface area as heterogeneous catalyst for Direct Aza-Diels-Alder. 47
Catalytic properties of enzymes adsorbed on layered zirconium phosphate and phosphonates 47
Hydrogen production by ethanol steam reforming over Ni catalysts derived from hydrotalcite-like precursors: Catalyst characterization, catalytic activity and reaction path 47
Chiral Borane of Layered alfa-Zirconium-N-(m-Solfofenyl)-L-Valine-Phosphonate Methanphosphonate Promoters for the Asymmetric Mukaiyama Aldxol Reaction 47
Intercalation of antiinflammatory agents in hydrotalcite-like compounds and controlled release formulations. 47
“Production of hydrogen from oxidative steam reforming of methanol II. Catalytic activity and reaction mechanism on Cu/ZnO/Al2O3 hydrotalcite-derived catalysts” 46
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 46
New open-framework zirconium polyphosphonates 46
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) 45
Nickel versus Cobalt catalysts for hydrogen production by ethanol steam reforming: Ni-Co-Zn-Al catalysts from hydrotalcite-like precursors 45
Sintesi di idrotalciti mediante la tecnica delle microemulsioni:caratterizzazione ed applicazioni 45
Intercalazione e deintercalazione di principi attivi in solidi lamellari. II. Intercalazione di isoniazide in fosfato acido di zirconio. 45
A simple and effective method to form metallic nanoparticles onto composites made up of organic polymers and layered inorganic ion exchangers as fillers 45
Heterogeneous catalysis in trimethylsilylation of alcohols and phenols by zirconium sulfophenyl phosphonate 44
Composite Nafion Membranes based on PWA-Zirconia for PEFCs Operating at Medium Temperature 44
Cu-Zn-Al hydrotalcites as precursors of catalysts for the production of hydrogen from methanol 44
New polimeric composites based on poly(epsilon-Caprolactone) and layered Double Hydroxides containing antimicrobial species 44
Use of anionic clays for photoprotection and sunscreen photostability: hydrotalcites and phenylbenzimidazole sulphonic acid. 44
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. 43
Heterogeneous Catalysis in Liquid Phase Organic Synthesis, Promoted by Layered Zirconium Phosphates and Phosphonates 43
Chiral borane of layered α-Zirconium-N-(m-solfophenyl)-L-Valine-Phosphonate Methanphosphonate promoters for the asymmetric Mukaiyama Aldol reaction 43
Intercalation compounds of α-zirconium hydrogen phosphate with heterocyclic bases and their ac conductivity 43
Direct Aza Diels-Alder Reaction in Water Catalyzed by Layered α-Zirconium Hydrogen Phosphate and SDS 43
Highly protonated zirconium polyphosphates with an open-framework structure 42
A novel integrated X-ray Powder Diffraction (XRPD) and molecular dynamics (MD) approach for modelling mixed metal ((Zn, Al) layered double hydroxides (LDHs) 42
Totale 5.603
Categoria #
all - tutte 30.142
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 30.142


Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2019/2020852 16 5 150 8 144 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
2024/202542 42 0 0 0 0 0 0 0 0 0 0 0
Totale 8.088