Browsing by Subject "porosity"

Article

Analytical separations in open-tubular capillary electrochromatography

Kapnissi‐Christodoulou, Constantina P.; Zhu, X.; Warner, I. M. (2003)

This review represents a summary of recent progress in open-tubular capillary electro-chromatography (OT-CEC) for chiral and achiral separations. The OT-CEC approach is an alternative to packed-CEC that could eliminate the ...

Article

The anomalous sorptive behaviour of Zsm-5 and silicalite-I: Observation of low-pressure hysteresis in nitrogen adsorption

Kyriakou, Georgia; Theocharis, Charis R. (2002)

A first stage of a systematic study of the nature of the low-pressure hysteresis loop observed in the nitrogen adsorption isotherms of some MFI zeolites is presented. It was shown that the pressure at which occurrence of ...

Article

Catalytic activity of high surface area mesoporous mn-based mixed oxides for the deep oxidation of methane and lean-nox reduction

Stathopoulos, Vassilis N.; Belessi, Vassiliki C.; Costa, Costas N.; Neophytides, Stylianos G.; Falaras, Polycarpos; Efstathiou, Angelos M.; Pomonis, Phillippos J. (2000)

Article

Design and synthesis of new nanosized C 3-symmetrical tricarboxylic acids: Key elongated ligands for the preparation of highly porous MOFs

Markoulides, Marios Savva; Efthymiou, Constantinos G.; Tasiopoulos, Anastasios J.; Chronakis, Nikos (2015)

The synthesis of two new C 3-symmetrical nanosized tricarboxylic acids bearing triphenylmethane cores and three imines linkages is presented. The new elongated tripods were designed to stabilise highly porous metal-organic ...

Article

Fabrication of nanorods by metal evaporation inside the pores of ultra-thin porous alumina templates

Kokonou, M.; Rebholz, Claus; Giannakopoulos, K. P.; Doumanidis, C. C. (2007)

Porous alumina has attracted a great deal of attention as a template material for the growth of nanowires and nanodots. Typically, the pores have a high aspect ratio, which forbids the use of evaporation techniques for ...

Article

Hofmeister anion effects on surfactant self-assembly and the formation of mesoporous solids

Leontidis, Epameinondas (2002)

Recent work on mesoporous silica formation using cationic and non-ionic templates has unveiled a large number of anion effects. Anions are seen to change the hydrolysis rates of the silicate precursors, affecting the surface ...

Article

Investigations on the surface properties of pure and alkali or alkaline earth metal doped ceria

Pashalidis, Ioannis; Theocharis, Charis R. (2000)

The effect of parameters, such as initial cerium concentration and alkali or alkaline earth concentration in the reactant solution on the properties of precipitated ceria, have been investigated by nitrogen adsorption ...

Article

Normalization of tumour blood vessels improves the delivery of nanomedicines in a size-dependent manner

Chauhan, V. P.; Stylianopoulos, T.; Martin, J. D.; PopoviÄ, Z.; Chen, O.; Kamoun, W. S.; Bawendi, M. G.; Fukumura, D.; Jain, R. K. (2012)

The blood vessels of cancerous tumours are leaky and poorly organized. This can increase the interstitial fluid pressure inside tumours and reduce blood supply to them, which impairs drug delivery. Anti-angiogenic ...

Article

Preparation and surface characterisation of novel ceria-copper and ceria-manganese mixed oxides

Christophidou, Maria; Theocharis, Charis R. (2002)

The paper presents surface texture and catalysis results for a series of copper and manganese-containing ceria samples. These samples, especially the 20% manganese containing one, had significantly higher surface area than ...