Eleftheria Neofotistou

Unprecedented Sulfone‐Functionalized Metal–Organic Frameworks and Gas‐Sorption Properties

Gas storage: A new, sulfone-functionalized dicarboxylate-based ligand (see figure) is capable of directing the formation of novel metal-organic frameworks with unprecedented organic and inorganic secondary building units. A high CO(2) uptake with remarkable selectivity over CH(4), N(2), and H(2) was observed at near-ambient temperature.

Remarkable structural diversity and single-crystal-to-single-crystal transformations in sulfone functionalized lanthanide MOFs

We report the formation of novel open framework lanthanide (La, Ce, Pr and Dy) MOFs using the ligand 4,4′-bibenzoic acid-2,2′-sulfone. In the case of Ce and Pr, an unprecedented single-crystal-to-single-crystal transformation at room temperature was discovered.

Cationic polymeric chemical inhibitors and multifunctional blends for the control of silica scale in process waters

Water is used globally for cooling purposes in industry. During its re-use, scaling and deposition can develop due to the high content of dissolved species. Among the toughest to combat is silica scale, or amorphous silicon dioxide. In this paper, we present how certain chemical interventions in the water chemistry can be beneficial for inhibiting silica polycondensation. Specifically, we have used chemical additives known as dendrimers. These are dendrimeric molecules based on polyaminoamide backbones that possess amine moieties as surface groups. These become protonated at circumneutral pH, hence charging the dendrimer molecules cationically. Their blends with anionic polymers such as polyvinylphosphonic acid are also studied for their silica scale inhibition efficiency.