■ Xinyuan reporter Gan Xiao intern Liu Xinyuan
"The development of new chemical measurement methods is very important to promote the development of chemistry. For more complex systems, smaller amounts of samples, and dynamic chemical processes, we need to develop more accurate, sensitive, and faster measurement methods and instruments. In order to better promote the endogenous development of the chemistry discipline in China, "said Yang Xueming, an academician of the Chinese Academy of Sciences and director of the Chemistry Department of the Natural Science Foundation of China.
There is no doubt that the discipline of chemistry has reached the crossroads of transformation. In 2019, the 30th Annual Chinese Chemistry Conference with the theme of "Chinese Chemistry in Transition" was held. At the conference, Chinese chemists focused on topics such as "playing a central scientific role" and "promoting cross-fusion" to plan the future of the transformation of the chemistry discipline.
"In the future, we should attach importance to giving the" old system "a" new connotation "to lay out new directions such as organic topological insulators, organic thermoelectricity, and organic superconductivity to promote the formation and development of the organic electronics industry. Chemistry will present a diversified and highly cross-cutting development trend. Chinese scholars should fully grasp the opportunities of independent innovation in the field of molecular electronics, and inject new development momentum into chemical science. "
In 2019, the endogenous dynamics of remolding chemistry based on molecular sciences and cores have become a new path opened by Chinese chemists.
In order to solve key scientific problems in these fields, molecular electronics that deeply interpenetrates physics has attracted much attention.
"In 2019, the work carried out by Chinese chemists centered on the restructured 'synthetic chemistry' and other fields has gradually improved, providing endogenous motivation for reshaping the discipline of chemistry." National Natural Science Foundation of China Chen Yongjun, executive deputy director of the Ministry of Chemistry, told China Science News.
After 100 years, the chemistry discipline has established a complete discipline system, and has developed a number of secondary disciplines such as inorganic, organic, physicochemical, analytical, and polymer. However, in recent years, chemists have increasingly felt that chemistry as a science is facing severe challenges.
Chen Yongjun pointed out: "Chemistry is gradually showing a tendency to be instrumentalized, its development is increasingly dependent on the demand of other disciplines, and its internal development lacks momentum." Mentioned: "Good applications are important, but we should still insist that chemistry is a science."
On December 18, Wang Jianjun, a researcher at the Institute of Chemistry of the Chinese Academy of Sciences, and other research groups published a paper in Nature that aroused the attention of the scientific and technological community. This is the 12th paper published this year by Chinese chemical researchers in the top journals of Cells, Nature, and Science (CNS). This number has maintained a consistent level for the past three years.
Among them, the intersection with physical science can solve the problems of precise reorganization of chemical bonds at the molecular level and above, and the relationship between structure and properties. This is the most basic connotation of chemistry, which will inject a strong impetus into molecular science. Material, life, information, energy and other requirements for chemistry's material, methods, and technology are considered to be the external driving force for the development of this discipline.
In Wang Jianjun's opinion, this research deeply intersects the disciplines of physics and chemistry, and understanding the micro-mechanism of the important phase change phenomenon of water icing can also provide important theoretical guidance for the application of artificial ice control.
Highly Crossed Molecular Science
In order to get rid of the tendency of instrumentation and reshape the endogenous motivation of the chemistry subject in transition, in addition to synthetic chemistry, another focus is on the reform of analytical chemistry. In the discipline code adjustment of the Natural Science Foundation of China, analytical chemistry and spectroscopy were “transformed and upgraded” into chemical surveying.
As the main channel for funding basic research, the National Natural Science Foundation's actions often have the effect of affecting the whole body. For the Chinese chemical community, the adjustment of the discipline funding code system has fanned like wings that trigger the butterfly effect.
Chemistry in Transition
Zhu Daoben told the Chinese Science Journal that molecular science mainly studies the composition and structure of substances, reactions and mechanisms, properties and functions. "We should clearly recognize that molecular science is a central science that intersects and penetrates into the fields of materials, life, information, environment, energy, etc.," he emphasized.
In the eyes of researchers, these landmark achievements demonstrate the importance of "synthetic chemistry" as a fusion of scientific fields to reshape the endogenous dynamics of chemistry. "In the future, the interdisciplinary integration of subjects such as 'synthetic chemistry' will be the development trend of the chemistry discipline." Chen Yongjun emphasized.
China Science News (2019-12-27 First Edition Highlights)
In recent years, the ancient discipline of chemistry is being hit by "instrumentation." How chemistry will develop in the future has become a major proposition that chemists around the world care about.
In October 2019, the 663rd Symposium of the Xiangshan Science Conference focused on "Front-edge and Innovation of Functional π-System Molecular Materials". At the conference, the frontier areas of molecular science research were further focused. Intelligent chemistry and technology, molecular materials and devices, green carbon science and excited state chemistry, surface interface and soft matter science, and the molecular basis of life processes were considered as the six majors of molecular science. Direction of development.
On December 18, in a study published in Nature by Wang Jianjun and Professor Zhou Xin from the University of Chinese Academy of Sciences and other scholars, a series of nano-materials were prepared using graphene oxide with relatively stable surface. The different sizes of graphene oxide at different temperatures were studied. The icing conditions confirmed the existence of critical ice nuclei in Gibbs' "classical nucleation theory" of phase transition.
For the first time, scientists in China have detected a critical ice core experimentally, and the results have been published in Nature.
At the end of 2019, the Chemistry Department of the Natural Science Foundation of China has reorganized the discipline funding code system; starting from 2019, the funding direction has changed to 8 new areas, including synthetic chemistry, catalysis and surface interface chemistry, chemical theory and mechanism, chemical measurement, materials and Energy chemistry, environmental chemistry science, chemical biology, chemical engineering and industrial chemistry, etc.
Another representative result comes from the team of Xiong Rengen, a professor at Nanchang University and Southeast University. Using the principle of similar compatibility, they constructed a new molecular perovskite solid solution, the piezoelectric coefficient of which exceeds that of inorganic ceramic solid solution lead zirconate titanate. This achievement reflects the fusion of inorganic synthesis and organic chemistry. Related research results were published in Science on March 15, 2019.
On October 17th, an achievement published by the team of Professor Tang Ruikang of the Department of Chemistry of Zhejiang University in "Nature" crossed the boundary between inorganic chemistry and polymer chemistry. The researchers guided the preparation of inorganic materials by referring to the concept of polymer polymerization, and proposed a new concept of inorganic ion polymerization. The polymerization and cross-linking of inorganic oligomers were used to achieve the continuous structure preparation of materials with complex morphology. A new approach.
He saw that in the past year, China has made great progress in chemical measurement, new scientific instruments and measurement methods have continuously emerged, and it has also cultivated an excellent instrument research and development team for the field of chemical research in China.
In addition, the newly established "material chemistry and energy chemistry" field, which combines traditional inorganic chemistry, organic chemistry, polymer chemistry and other related materials, energy, and chemical content, has expanded chemical science as a central science for creating new substances, It plays an important supporting role in scientific frontiers and major national needs.