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1.
<正>Catalysis is a key and enabling technology and plays a critical role in the ields of energy conversion,materials synthesis,environmental protection and human health care.he gradual depletion of oil resources——the basis of modern energy and chemical industries——coupled with growing public demand for increased ecological and environmental protection,  相似文献   

2.
This project focuses on fundamental problems in the interdisciplinary research of chemistry and materials, covering main achievements on fundamental study and applied exploration of novel photo-functional materials.Significant progress was made in the design and con- struction of special photo-functional molecules and complexes by implementation of this project. (1) Organic nanomaterials were investigated sys- tematically in this project, extending the particularity of nanomaterials from metal…  相似文献   

3.
There is a rich and long history of gaining inspiration from the nature for the design of practical materials and systems.Biominerals are well-known composites of inorganic and organic materials in the form of fascinating shapes and highly ordered structures existing in the natural world, such as pearl, oyster shells, corals, ivory, sea urchin spines, cuttlefish bone, limpet teeth, magnetic crystals in bacteria and human bones that are created by living organisms.During the past few decades, it has become one of the most influencing subjects in materials proteins, which involve in all the processes of multicell organisms, such as fertilization, differentiation, development, immunity, infection, and cancer.chemistry to explore new bio-inspired strategies for selfassembling or surface-assembling molecules or colloids to generate materials with controlled morphologies,  相似文献   

4.
<正>Modern experimental techniques and theoretical simulations extended the research scope of complex chemical processes in functional molecules/materials innovation. Quantum chemistry (QC)-level simulations of macromolecules and condensed-phase systems need machine learning (ML) or deep learning (DL)[1]to decrease computational costs, which traditionally increases exponentially with system size. To guide rational design and optimize synthetic processes,  相似文献   

5.
<正>PHYSICS Understanding Feshbach molecules using radio-frequency spectroscopy Ultracold Fermi gases provide versatile and lexible setings for molecular interactions and reaction dynamics in quantum regimes.Recently,Lianghui Huang and colleagues created weakly bound Feshbach molecules from the two spin components of40K atomic Fermi gas.hey then investigated the radiofrequency(RF)spectra of the weakly bound molecules and from that obtained the magnetic-ield-dependent binding  相似文献   

6.
Nanotechnology     
<正>The idea of ‘nanotechnology' was kindled by a talk – There's Plenty of Room at the Bottom – given by the famous physicist Richard Feynman at an American Physical Society meeting at Cal Tech back in 1959. In this talk, he described a possibility to manipulate and control individual atoms and molecules. Since then, brilliant minds have joined in this new area, creating many new devices to help understanding how things work at the atomic level and new ways to create functional materials with nanoscale accuracy. Along the way, Chinese scientists also have made their marks.  相似文献   

7.
This project is set in one of the international frontier research fields in inorganic solid chemistry.At present, the research in organic/inorganic hybrid materials and nanocomposite optoelectronic functional materials is under the spotlight in the realm of materials science; there remain quite a few difficulties hiding in the traditional synthesis methods.For instance, the reaction cycle is generally too long, rare earth luminescence components are covalently grafted onto the matrix network, and the stability and luminescence properties are quite poor.Hence, Prof.Zhang and his colleagues proposed a series of new methods and technologies through systematic studies to prepare organic/inorganic hybrid materials and nanocomposite optoelectronic functional materials, striving to solve those kinds of problems.Through many years' efforts, a scientific basis was established by the scientists for the design and performance of the materials, which is recognized of great practical significance.  相似文献   

8.
<正>As the basic building blocks of modern electronics, field-effect transistors (FETs)use gate electrodes to control the conductivity of channel materials through the electrical polarization of dielectrics[1]. The performance of FETs relies not only on the channel materials and their contacts with the electrodes, but also on the dielectrics and their interfaces with the channel materials [1,2].  相似文献   

9.
<正>National Science Review invited Prof. Dongyuan Zhao of Fudan University for an interview focusing on his team’s renowned research on functional mesoporous materials and energy-related applications. Prof. Zhao is a professor of chemistry and materials science, and a member of the Chinese Academy of Sciences. He received his PhD in chemistry from Jilin University in 1990. He has since focused his research on the synthesis and structure of porous materials and molecular sieves.  相似文献   

10.
Enchanted by the glamour of the fascinating effects resulting from the collisions between the molecules of hydrogen, deuteride and fluorine, Prof. YANG Xueming never expects to attract too many spotlights. However, over the past few years after his returning to the Dalian Institute of Chemical Physics (DICP), CAS, his team was frequently caught by the media on the center stage. Discoveries made by his team ranked top 10 S&T advancements of China consecutively in 2006 and 2007. Significant progress was also made in 2008 by this group in the research field of molecular reaction dynamics, and he himself has won a number of important awards and prizes.  相似文献   

11.
<正>The knowledge of how atoms(or molecules)move is crucial for understanding the state of a material,and the existence of a decoupling of relaxation modes on cooling supercooled liquids has for instance dramatically improved our knowledge on the ongoing processes responsible for the vitrification and deformation.However,the movement of atoms in  相似文献   

12.
Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction.  相似文献   

13.
Data-driven machine learning(ML) is widely employed in the analysis of materials structure-activity relationships,performance optimization and materials design due to its superior ability to reveal latent data patterns and make accurate prediction.However,because of the laborious process of materials data acquisition,ML models encounter the issue of the mismatch between a high dimension of feature space and a small sample size(for traditional ML models) or the mismatch between model parameters a...  相似文献   

14.
<正>1.Scientific connotation and significance Advanced materials technology is one of the most important technologies impacting modern social and economic development.Its advancement will enrich the technological element in related products,shorten production cycle,and promote the emergence and prosperity of high-tech industries.Moreover,it will significantly change a nation’s industrial structure,help create personalized lifestyle and life concept for the people,and even infl uence international political situation.Take lightweight materials as an example.The realization of lightweight modern transport relies on lightweight aluminum/magnesium/titanium alloys and carbon fiber composite materials.It is estimated that a vehicle may reduce 20%of its weight if made of  相似文献   

15.
<正>1987: First BreakthroughsIn 1911, Dutch physicist Heike Kamerlingh Onnes found that some certain materials could become a "perfect conductor" in the presence of extremely low temperatures: the electrical resistance disappeared, and meanwhile the magnetic flux fields got totally expelled from the interior of the material. Such a phenomenon was later named superconductivity, and such materials termed superconductors.  相似文献   

16.
Architectural control of nanoparticles with welldefined shapes and the alignment of nanobuilding blocks into ordered superstructures have become the key issues in materials chemistry and nanotechnology since recent years, and copper monosulfide, as one of the important semiconductor transition-metal chalcogenides, has gained more and more attention in materials science due to its excellent optical, and electronic properties.  相似文献   

17.
Aromaticity is one of the most important concepts in chemistry.However,there is still no unified chemical insight for various systems with conjugated sp2 carbon.Herein,we proposed a superatomic-molecule theory to build a generalized electron rule for polycyclic conjugated hydrocarbons,fullerenes and 2D periodic materials.Taking benzenoid units as 2D superatoms,polycyclic conjugated hydrocarbons and C60can be seen as superatomic molecules consisting of bonded superatoms,resu...  相似文献   

18.
Since the second half of the 20th century, polymer materials have already become an essential part of our daily life. The use of polymeric materials has already exceeded that of metals and ceramics in terms of volume and is intimately connected  相似文献   

19.
Chinese student LUO Yuan, 27, is studying toward her Ph.D. in materials sciences at the Max Planck Institute for Chemical Physics of Solids in Dresden, Germany. She is currently spending her fourth year in Germany as part of an exchange program between the Chinese Academy of Sciences and the Max Planck Society. We talked with LUO Yuan about her research, the major differences in work culture between China and Germany, and her future plans.  相似文献   

20.
正Bio-based materials are a kind of new materials synthesized by biological or chemical methods based on renewable resources.They are environmentally friendly,renewable and biodegradable,which make the frontier of materials science research.A group led by JIANG Yijun from the Qingdao Institute of Bioenergy and Bioprocess Technology  相似文献   

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