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New Ordered Structure of Amorphous Carbon Clusters Induced by Fullerene–Cubane Reactions
Author(s) -
Du Mingrun,
Yao Mingguang,
Dong JiaJun,
Ge Peng,
Dong Qing,
Kováts Éva,
Pekker Sándor,
Chen Shuanglong,
Liu Ran,
Liu Bo,
Cui Tian,
Sundqvist Bertil,
Liu Bingbing
Publication year - 2018
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201706916
Subject(s) - cubane , materials science , carbon fibers , fullerene , cluster (spacecraft) , amorphous solid , chemical physics , amorphous carbon , diamond , crystallography , nanotechnology , crystal structure , composite material , chemistry , composite number , organic chemistry , programming language , computer science
As a new category of solids, crystalline materials constructed with amorphous building blocks expand the structure categorization of solids, for which designing such new structures and understanding the corresponding formation mechanisms are fundamentally important. Unlike previous reports, new amorphous carbon clusters constructed ordered carbon phases are found here by compressing C 8 H 8 /C 60 cocrystals, in which the highly energetic cubane (C 8 H 8 ) exhibits unusual roles as to the structure formation and transformations under pressure. The significant role of C 8 H 8 is to stabilize the boundary interactions of the highly compressed or collapsed C 60 clusters which preserves their long‐range ordered arrangement up to 45 GPa. With increasing time at high pressure, the gradual random bonding between C 8 H 8 and carbon clusters, due to “energy release” of highly compressed cubane, leads to the loss of the ability of C 8 H 8 to stabilize the carbon cluster arrangement. Thus a transition from short‐range disorder to long‐range disorder (amorphization) occurs in the formed material. The spontaneous bonding reconstruction most likely results in a 3D network in the material, which can create ring cracks on diamond anvils.