No abstract

Heteroatom doping of carbon nanostructures is a convenient tool to control their physicochemical properties and to make them suitable for various applications. Carbon nano‐onions (CNOs) doped with nitrogen (N‐CNOs) have been prepared by annealing aminated‐nanodiamond particles (AM‐NDs) at different temperatures (1150, 1450 and 1650 °C) in an inert He atmosphere. Their physicochemical properties were compared with those of pristine CNOs obtained from non‐functionalized NDs under the same experimental conditions. The carbon nanostructures were characterized using transmission (TEM) and scanning (SEM) electron microscopy, X‐ray powder diffraction (XRD), Raman and Fourier transform infrared (FTIR) spectroscopy, porosimetry, and differential‐thermogravimetric analyses (TGA‐DTG). Their physicochemical properties are systematically discussed for undoped and for the nitrogen‐doped CNO samples. The results reveal that the surface morphology and the structure of undoped and nitrogen‐doped CNOs vary with the annealing temperature. All of these materials were electrochemically tested as electrode materials for enzyme‐free catalysis of hydrogen peroxide. The nitrogen‐doped carbon nanostructures have a higher catalytic activity than undoped nanostructures obtained under the same experimental conditions.

Two phenol-formaldehyde organic aerogels were prepared and applied for efficient Cu(ii) and Mn(ii) ion, organic solvent and dye removal from water sources.

This study is the first to use carbon nanoonion-based derivatives as acceptors in organic photovoltaic devices (PCE = 1.89%).

Abstract. Using IR-and NMR-spectroscopy ( 1 H and 13 C) the structure of functional oligomers based on novolac phenol-formaldehyde and polyglycidyl phenolformaldehyde oligomers has been characterized. The structure of modified phenol-formaldehyde oligomers has been confirmed by the presence of absorption bands and proton shifts corresponding to furan ring, methacrylic fragment, peroxy, hydroxyl, and phenol groups.

The photocatalytic studies revealed that metallophthalocyanine–carbon nano-onion nanostructural materials simultaneously exhibited a high absorption capacity and an excellent visible-light-driven photocatalytic activity towards rhodamine B.