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  • 标题:Generating carbon schwarzites via zeolite-templating
  • 本地全文:下载
  • 作者:Efrem Braun ; Yongjin Lee ; Seyed Mohamad Moosavi
  • 期刊名称:Proceedings of the National Academy of Sciences
  • 印刷版ISSN:0027-8424
  • 电子版ISSN:1091-6490
  • 出版年度:2018
  • 卷号:115
  • 期号:35
  • 页码:E8116-E8124
  • DOI:10.1073/pnas.1805062115
  • 语种:English
  • 出版社:The National Academy of Sciences of the United States of America
  • 摘要:Zeolite-templated carbons (ZTCs) comprise a relatively recent material class synthesized via the chemical vapor deposition of a carbon-containing precursor on a zeolite template, followed by the removal of the template. We have developed a theoretical framework to generate a ZTC model from any given zeolite structure, which we show can successfully predict the structure of known ZTCs. We use our method to generate a library of ZTCs from all known zeolites, to establish criteria for which zeolites can produce experimentally accessible ZTCs, and to identify over 10 ZTCs that have never before been synthesized. We show that ZTCs partition space into two disjoint labyrinths that can be described by a pair of interpenetrating nets. Since such a pair of nets also describes a triply periodic minimal surface (TPMS), our results establish the relationship between ZTCs and schwarzites—carbon materials with negative Gaussian curvature that resemble TPMSs—linking the research topics and demonstrating that schwarzites should no longer be thought of as purely hypothetical materials.
  • 关键词:schwarzite ; zeolite-templated carbon ; triply periodic minimal surface ; template carbonization ; microporous carbon
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