TY  - JOUR
AU  - LAI, Shoulong
AU  - YANG, Xigui
PY  - 2026
TI  - High-Temperature and High-Pressure Synthesis of High-Purity Rhombohedral C60 Polymer
JO  - Chinese Journal of High Pressure Physics
SN  - 1000-5773
VL  - 40
IS  - 9
AB  - Rhombohedral C60 polymer holds significant potential for applications in two-dimensional materials and catalysis, yet the synthesis of high-purity, high-quality rhombohedral C60 remains challenging. In this study, rhombohedral C60 polymer was successfully synthesized under conditions of 6 GPa and 650 ℃. The obtained sample was confirmed to be a high-purity two-dimensional rhombohedral phase through characterization techniques including X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, and aberration-corrected transmission electron microscopy. The effects of pressure and temperature (6–10 GPa, 650–800 ℃) on the polymerization of C60 were investigated, clarifying the phase boundary between the rhombohedral phase and disordered amorphous carbon clusters. Variable-temperature Raman spectroscopy revealed that the rhombohedral C60 polymer remains stable up to about 350 ℃, beyond which it depolymerizes and reverts to the original face-centered cubic C60 molecules. This work provides a clear processing window for the synthesis of high-quality rhombohedral C60 polymer, laying an experimental foundation for its further application in functional materials.
UR  - https://doi.org/10.11858/gywlxb.20251255
DO  - 10.11858/gywlxb.20251255