On the morning of October 24th, the "2018 Research Frontiers" report (Chinese and English version) and the "2018 Research Frontier Heat Index" were released by the Chinese Academy of Sciences Science and Technology Strategic Consulting Research Institute, the Chinese Academy of Sciences Document Information Center and Clarivate Analytics. "report. In the report, the selection showed 100 hot frontiers and 38 emerging frontiers in 10 highly-aggregated university disciplines.

　　Look at 10 chemistry & materials science hotspots first

　　In the report, the core papers of the two hot fronts and the TOP countries and institutions of citing papers are sorted out.

　　Key Hot Frontier——"M-Selective Carbon-Hydrogen Bond Activation"

　　Key hotspot frontiers-"eutectic solvents and their applications"

　　The core papers in this research front are mainly from the Netherlands, Spain, the United Kingdom and other EU countries. This is related to the European Union’s funding of a large number of eutectic solvent industrialization research projects through the "Framework Program". The University of Leicester in the United Kingdom, Leiden University in the Netherlands and other related institutions for industrialization research projects have participated in the research in this field.

　　8 emerging frontiers in chemistry & materials science

　　The research report interprets three of the four core papers on the direction of stretchable materials and devices. Three of them are from Professor Zhenan Bao of Stanford University. Many of the work of his team is leading and pioneering. For example, in 2016, the team abandoned the previous flexible semiconductor preparation strategies such as nanofibers or nanowires in elastomers, and innovatively introduced chemical groups into conjugated polymers, realizing that the material still has high electrons when strain is generated. For the goal of migration ability, the article's citation frequency is the highest among this emerging frontier, at 124 times. In 2017, the team also proposed for the first time a polymer nano-restriction method, and prepared flexible semiconductor materials with excellent conductivity and stretchability. Related articles have been cited 95 times. Recently, the team successfully developed a high-density, high-sensitivity, stretchable transistor array that can be mass-produced for the first time. The Hefei University of Technology in China has recently used the orderly assembly of metal nanowires to successfully develop an elastic conductor material with self-healing properties, high electrical conductivity, excellent tensile resistance and electromechanical stability.

　　Material key directions and emerging directions in other disciplines

　　Using transition metals and nanotechnology to catalytically activate persulfate to degrade pollutants in water