The Effect of the Polyaromatic Hydrocarbon in the Formation of Fullerenes. (24th January 2020)

• Record Type: Journal Article
• Authors: Wu, Bo; Jiang, Li; Luo, Yi; Wang, Chunru
• Is Part Of: Angewandte Chemie. Volume 132:Number 10(2020)
• Page Start: 3970
• Page End: 3975
• Publication Date: 2020-01-24
• Subjects: Bausteine -- Fragmentassemblierung -- Fullerene -- Polyaromatische Kohlenwasserstoffe; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201915228
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: Tremendous advances in nanoscience have been made since the discovery of fullerenes. However, the short timescale of the growth process and high‐energy conditions of synthesis result in severe constraints to investigation of the mechanism of fullerene formation. In this work, we attempted to reveal the formation process by analyzing the variation in the yield of fullerenes under different conditions. Experiments and theoretical analysis show that the formation of fullerenes could be affected by the addition of polycyclic aromatic compounds. It is proposed that the formation of C60 during arc‐discharge synthesis is fragment assembling, while the yield of C2 m ( m =35, 38, 39) is strongly enhanced by building‐block splicing. In addition, several features of the building blocks are put forward to predict the extent of their influence to the formation of larger fullerenes C2 n ( n ≥42). This work not only provides essential insight into the formation process of fullerenes, but more importantly also paves the way to improving the yield of larger fullerenes selectively. Abstract : Bei der Bogenentladungssynthese von C60 ist die Fragmentassemblierung der Entstehungsweg, während die Herstellung von C2 m ( m =35, 38, 39) durch das Spleißen von Bausteinen verbessert wird. Mehrere Merkmale der Bausteine werden vorgeschlagen, um ihren Einfluss auf die Bildung größerer C2 n ‐Fullerene vorherzusagen ( n ≥42). Dies ermöglicht einen Einblick in die Bildung, die entscheidend für die Verbesserung der Ausbeute an größeren Fullerenen ist.