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A catalytic depolymerization of ultrahard fullerite

机译：超硬富勒石的催化解聚

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摘要

A catalytic depolymerization (a reversible polymerization) of 3D-polymerized C_(60) phases (including an ultrahard fullerite phase) takes place in the presence of sulfur under the conditions of a large plastic deformation at room temperature. The sulfur atoms remain in the samples of 3D C_(60) polymers after catalytic synthesis using carbon disulfide (CS_2) as a catalyst (the presence of sulfur has a considerable impact on the 3D C_(60) polymerization by decreasing the polymerization pressure). Raman, infrared, and transmission electron microscope studies show that the depolymerized fullerite samples have a structure typical for dimers, 1D and 2D C_(60) polymers. The 3D C_(60) samples with some remaining sulfur can be quenched under ambient conditions if the samples have not undergone a large plastic deformation. There is no depolymerization for pure C_(60) 3D-polymerized phases synthesized without a sulfur-based catalyst.
机译：3D聚合的C_（60）相（包括超硬富勒氏体相）在室温下大塑性变形的条件下，发生硫的催化解聚（可逆聚合）。在使用二硫化碳（CS_2）作为催化剂的催化合成之后，硫原子保留在3D C_（60）聚合物的样品中（硫的存在通过降低聚合压力对3D C_（60）聚合有相当大的影响）。拉曼，红外和透射电子显微镜研究表明，解聚的富勒岩样品具有二聚体，一维和二维C_（60）聚合物的典型结构。如果样品未经历大的塑性变形，则可以在环境条件下淬灭残留一些硫的3D C_（60）样品。没有硫基催化剂合成的纯C_（60）3D聚合相没有解聚。

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  • 来源
    《Journal of Materials Research》 |2015年第11期|1772-1778|共7页
  • 作者

    Mikhail Popov; Mikhail Alekseev; Alexey Kirichenko; Boris Kulnitskiy; Igor Perezhogin; Elizaveta Tyukalova; Vladimir Blank;

  • 作者单位

    Technological Institute for Superhard and Novel Carbon Materials, Troitsk, Moscow 142190, Russian Federation National University of Science and Technology MISiS, Moscow 119049, Russian Federation and Moscow Institute of Physics and Technology State University, Dolgoprudny, Moscow Region 141700, Russian Federation;

    Technological Institute for Superhard and Novel Carbon Materials, Troitsk, Moscow 142190, Russian Federation and Moscow Institute of Physics and Technology State University, Dolgoprudny, Moscow Region 141700, Russian Federation;

    Technological Institute for Superhard and Novel Carbon Materials, Troitsk, Moscow 142190, Russian Federation;

    Technological Institute for Superhard and Novel Carbon Materials, Troitsk, Moscow 142190, Russian Federation and Moscow Institute of Physics and Technology State University, Dolgoprudny, Moscow Region 141700, Russian Federation;

    Technological Institute for Superhard and Novel Carbon Materials, Troitsk, Moscow 142190, Russian Federation and Lomonosov Moscow State University, Leninskie Gory, Moscow 119991, Russian Federation;

    Technological Institute for Superhard and Novel Carbon Materials, Troitsk, Moscow 142190, Russian Federation and Moscow Institute of Physics and Technology State University, Dolgoprudny, Moscow Region 141700, Russian Federation;

    Technological Institute for Superhard and Novel Carbon Materials, Troitsk, Moscow 142190, Russian Federation National University of Science and Technology MISiS, Moscow 119049, Russian Federation and Moscow Institute of Physics and Technology State University, Dolgoprudny, Moscow Region 141700, Russian Federation;

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