Enrichment of a fullerene mixture with endohedral metallofullerenes: methodology and evaluation

Vnukova, N.G., Nikolaev, N.S., Bartseva, L.S., (...), Isakova, V.G., Churilov, G.N.// Fullerenes Nanotubes and Carbon Nanostructures//

https://doi.org/10.1080/1536383X.2024.2338524/

A fullerene mixture was enriched with endohedral metallofullerenes (EMF) using Lewis acid (TiCl₄), which took 22 min, whereas the standard method requires about 8 h. An algorithm for assessing small-area chromatographic peaks has been proposed, which has improved the accuracy of determination. For example, the area of the C₈₄ peak was 4.24% using the developed program, while the use of chromatograph software estimated the area of this peak to be 1.78%.