New composite materials based on fullerenes

New composite materials based on fullerenes are presented. To synthesize these materials, mixtures of polycrystalline C₆₀ powders with various hydrocarbon binding agents and dopants were exposed to high pressures and temperatures. As a result, strong insoluble samples were obtained. Halogens and sodium were used as acceptor and donor admixtures, respectively. In the latter case, a superconductor was prepared, which retained its properties in the course of long storage in air.