Ezra R. Kone , Sarah Nasri , Grace L. Parker , Victor G. Desyatkin , William B. Martin , John F. Trant , Valentin O. Rodionov
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引用次数: 0
Abstract
Several recent articles by Cui and coworkers claim syntheses of γ-graphyne, a novel sp2/sp1 allotrope of carbon, directly from calcium carbide. Here, we describe the replication of the key experiments from this series of articles. We did not observe the formation of γ-graphyne under the reported conditions. The characterization data from our replications are partially consistent with the results reported by Cui. However, we show that the claimed experiments produce only heavily contaminated, amorphous chars with no detectable sp1 carbons.
崔永元及其同事最近发表了几篇文章，声称直接从碳化钙中合成了γ-石墨烯，一种新型的碳sp2/sp1同素异形体。在此，我们介绍了这一系列文章中关键实验的重复情况。在报告的条件下，我们没有观察到γ-石墨烯的形成。我们复制的表征数据与 Cui 报告的结果部分一致。不过，我们表明，所声称的实验只产生了严重污染的无定形炭，没有检测到 sp1 碳。
期刊介绍：
The journal Carbon is an international multidisciplinary forum for communicating scientific advances in the field of carbon materials. It reports new findings related to the formation, structure, properties, behaviors, and technological applications of carbons. Carbons are a broad class of ordered or disordered solid phases composed primarily of elemental carbon, including but not limited to carbon black, carbon fibers and filaments, carbon nanotubes, diamond and diamond-like carbon, fullerenes, glassy carbon, graphite, graphene, graphene-oxide, porous carbons, pyrolytic carbon, and other sp2 and non-sp2 hybridized carbon systems. Carbon is the companion title to the open access journal Carbon Trends. Relevant application areas for carbon materials include biology and medicine, catalysis, electronic, optoelectronic, spintronic, high-frequency, and photonic devices, energy storage and conversion systems, environmental applications and water treatment, smart materials and systems, and structural and thermal applications.
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