High-Temperature and High-Pressure Synthesis of High-Purity Rhombohedral C<sub>60</sub> Polymer

LAI Shoulong; YANG Xigui

doi:10.11858/gywlxb.20251255

Volume 40 Issue 9

Sep 2026

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Chinese Journal of High Pressure Physics > 2026 > 40(9): 090112.

LAI Shoulong, YANG Xigui. High-Temperature and High-Pressure Synthesis of High-Purity Rhombohedral C60 Polymer[J]. Chinese Journal of High Pressure Physics, 2026, 40(9): 090112. doi: 10.11858/gywlxb.20251255

Citation:

LAI Shoulong, YANG Xigui. High-Temperature and High-Pressure Synthesis of High-Purity Rhombohedral C₆₀ Polymer[J]. Chinese Journal of High Pressure Physics, 2026, 40(9): 090112. doi: 10.11858/gywlxb.20251255

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High-Temperature and High-Pressure Synthesis of High-Purity Rhombohedral C₆₀ Polymer

doi: 10.11858/gywlxb.20251255

LAI Shoulong,
YANG Xigui^{*
,
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Henan Key Laboratory of Diamond Materials and Devices, School of Physics, Zhengzhou University, Zhengzhou 450001, Henan, China

Received Date: 10 Nov 2025
Rev Recd Date: 19 Jan 2026

Available Online: 21 Jan 2026

Issue Publish Date: 05 Sep 2026

Abstract

Abstract

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.
- C₆₀,
- high-temperature and high-pressure,
- rhombohedral phase,
- polymerization,
- phase transition

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References(22)

References

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