Professor Huang Chunhui is mainly engaged in the research of rare earth coordination chemistry and molecular functional membrane materials. The former involves the extraction and separation of rare earth elements, the molecular design, synthesis, structure and properties of rare earth complexes, especially the photoluminescence and electroluminescence properties of rare earth complexes. In the research of molecular-based functional materials, the molecular design principle of second-order nonlinear optical materials is introduced into the design of photoelectric conversion materials, and the correlation between the two in structure-activity relationship is found, and a new class of photoelectric conversion materials is developed.
Professor Huang Chunhui is the author of Rare Earth Coordination Chemistry (1997), Ultrathin Film with Photoelectric Function (200 1) and Introduction to Organic Electroluminescent Materials and Devices (2005). In addition, he also participated in the compilation of Scandium and Rare Earth Elements, Volume VII of Inorganic Chemistry Series, Rare Earth and other monographs. He has published more than 300 papers in important academic journals at home and abroad, such as j.am.chem.soc, adv.mater and science in China B. He has quoted 1800 times.
Professor Huang Chunhui has successively presided over the 973 sub-project of State Key Basic Research, the 863 sub-project of China High-tech Research and Development Plan and the National Natural Science Foundation. In 2005, he won the Science and Technology Progress Award of He Liang Heli Fund and the second prize of National Natural Science in 2003. At present, he is also the executive editorial board member of China Rare Earth Magazine and the executive director of chinese society of rare earths.
achievements in scientific research
In the study of rare earth functional complexes and molecular functional materials, two mesoscopic physical phenomena, fluorescence enhancement and lifetime shortening, were observed in the optical microcavity of rare earth complexes. The green light intensity of the electroluminescent device assembled with terbium complex reaches the highest known value of 920 Candeira/m2. In the research of molecular-based functional materials, the molecular design principle of second-order nonlinear optical materials is introduced into the design of photoelectric conversion materials. In the semi-cyanine dye system with second-order nonlinearity, the relationship between structure and activity was found, and a new class of photoelectric conversion materials was developed. Some important indexes of dye-sensitized nanocrystalline solar cells have been improved after surface modification of titanium dioxide nanocrystals. This paper mainly studies rare earth coordination chemistry and molecular functional membrane materials. The former involves the extraction and separation of rare earth elements, the molecular design, synthesis, structure and properties of rare earth complexes, especially the photoluminescence and electroluminescence properties of rare earth complexes. In the late 1970s, Huang Chunhui began to study rare earth separation chemistry and rare earth coordination chemistry. Huang Chunhui's "Study on Rare Earth Extracts and Extraction Mechanism" won the second prize of 1988 Science and Technology Progress Award (the first author). The characteristic of this study is that according to the classification system of extraction systems, the extraction complex structures of five types of extraction systems are studied, and the extraction mechanism is studied by macroscopic thermodynamics at the molecular level. For example, diethyl hexyl phosphate (HL) is one of the commonly used extractants in rare earth separation. When the ratio of rare earth to HL is greater than 1: 3, the extraction system will be emulsified. There have been some qualitative speculations about this phenomenon in the past literature. Based on the model molecules, Huang Chunhui concluded that only when the alkyl groups in alkyl phosphate are methyl and rare earth, the extract has a three-dimensional network structure: HL = 1: 3. When the length of alkyl group is greater than that of ethyl group, the extract is a quasi-one-dimensional chain polymer structure, which provides a theoretical basis for the control of production process. For another example, in general, after the system is determined, the separation coefficient can be approximately regarded as a constant; However, when extracting and separating yttrium from naphthenic acid, the process is designed according to the separation coefficient usually determined, and there is a great deviation between yttrium and other rare earths, especially lanthanum. There are various indications that the same extraction has taken place, and one of the possibilities of the same extraction is the existence of heterobinuclear complexes. Huang Chunhui determined from thermodynamic data that the heterobinuclear complex is more stable than the homobinuclear complex in this system, and also obtained the model molecule lanthanum yttrium binuclear complex single crystal. This research result points out theoretically that it is necessary to increase the separation process of light and heavy rare earths before extracting high-purity yttrium oxide from mixed rare earths with naphthenic acid. So far, this research result has been used in production.
In addition, Huang Chunhui also participated in the research of various rare earth extraction and separation processes. As one of the main participants, together with other colleagues, he won 1978 National Science and Technology Conference Achievement Award, 1988 National Natural Science Third Prize (the fourth author of cascade extraction theory and its application in industry), and 1989 National Education Commission's first prize of scientific and technological progress (the fourth author).
Since the late 1980s, based on rare earth separation chemistry and coordination chemistry, she has carried out research on molecular-based functional materials and their ultrathin films. In the study of rare earth photoluminescence materials, rare earth complexes with excellent fluorescence properties were made into amphiphilic molecules, and LB film technology was successfully applied to the assembly of optical microcavities. For the first time, two mesoscopic physical phenomena of enhanced fluorescence brightness and shortened lifetime were observed in rare earth complex optical microcavities. In the aspect of electroluminescence, europium and terbium are used as luminescent materials, which makes the luminescence of terbium reach 920 d/m2 at 18V, which is the highest value in the current similar working literature. Rare earth complex anions are introduced into second-order nonlinear optical materials for the first time, which greatly improves the optical second-order nonlinear coefficient of dye molecules, and its mechanism is deeply discussed. In the study of second-order nonlinearity and photoelectric conversion materials, the structural correlation between them was found in dye system for the first time. In addition, the photophysical, photochemical and surface chemical behaviors of a series of C60 amino carboxyl and polyaminocarboxylic acid monoaddition derivatives were also studied. On the monolayer modified electrode, the quantum yield of photoelectric conversion is as high as 8%, which is the highest value of monolayer film reported in the literature at present. The above contents won the second prize of 1996 Science and Technology Progress Award of Education Commission (the first author).
Huang Chunhui has been engaged in teaching for a long time. She loves education, students and dedication. She believes that teaching and educating people is the glorious duty of people's teachers. Today's students are the pillars of tomorrow's talents. The tutor's duty is to bring his students to the forefront of the discipline, which requires the tutor not only to impart his familiar knowledge, but also to constantly update his knowledge structure and open up new research fields. Only in this way, in the scientific stage of 2 1 century, can students have the ability to talk with their international counterparts and the basis for cooperation. Under the guidance of this thought, Huang Chunhui deeply attracted young people with his novel research direction, which greatly mobilized students' enthusiasm and creativity. Students are diligent and eager to learn, and have received strict scientific training in a relaxed and active atmosphere. When guiding graduate students, Huang Chunhui emphasizes seeking truth from facts and striving for perfection, but also emphasizes mobilizing students' own innovative spirit. When assigning thesis topics, the indicators are never fixed, but there is room for students to play freely; In this way, her graduate students can not only get strict experimental skills training in their study and research work, but also get scientific research thinking training and self-arranged work. Her research group has achieved fruitful results. When students leave this group after graduation, they often leave many heartfelt words that make people cry. Huang Chunhui trained1person for master's degree and1person for doctor's degree. One of them won the chinese chemical society Youth Chemistry Award 1996 person and the first National Excellent Doctoral Thesis Award 1997 person. Another won 1999 "May 4th Scholarship" for college students in China; A young teacher won the 1998 chinese chemical society Youth Chemistry Award and was supported by the National Outstanding Youth Fund. Huang Chunhui himself was awarded the Excellent Doctoral Supervisor Award of Peking University twice in 1996 and 1998.
As of1999,65438+February, Huang Chunhui has published more than 250 papers, of which 130 papers have entered the source journals of SCI. He is the author of Rare Earth Coordination Chemistry (Science Press, 1997). Participated in compiling the seventh volume of Inorganic Chemistry Series-Scandium and Rare Earth Elements (Science Press, 1992), and was responsible for the whole manuscript, Rare Earth (Metallurgical Press, 1995 2nd Edition) and Advanced Inorganic Chemistry Experiment (Peking University Press, 1987).
life experience
1933 was born in Xingtai, Hebei Province on May 4th, and his ancestral home was in Jiangxi Province.
195/KLOC-0 studied in the Department of Chemistry of Tsinghua University from September to summer of 1952.
Summer solstice of 1952/summer of kloc-0/955, I studied in the Department of Chemistry of Peking University and graduated from the university.
1955 summer vacation to Japan 1976 as a teaching assistant in the chemistry department of Peking University.
1976- 1978 was a lecturer in the chemistry department of Peking University students.
1978- 1986 Associate Professor, Department of Chemistry, Peking University.
198 1- 1982 used to be a visiting scholar at Ames national laboratory of the U.S. Department of Energy.
1982- 1983 Visiting Scholar, Department of Chemistry, University of Arizona, USA.
1988- 1990 professor of chemistry department of Peking University.
1990- Professor and doctoral supervisor of Peking University Department of Chemistry.
work
1. Huang Chunhui, Li, Huang, ultra-thin film with photoelectric function, Peking University Publishing House, 200 1.
2. Huang Chunhui, Li, Huang Wei, Introduction to Organic Electroluminescent Materials and Devices, Fudan University Press, 2005
3. Efficient electroluminescence of a new terbium complex, Xin Haihong, Li Fengying, Shi Mingzhi, Bian Zhiqing, Huang Chunhai, Lin Junfeng. Chemistry. Socialists, 2003,125,7166-7177.
4. Synthesis of bicontinuous cubic mesoporous silica by cyanine dye/surfactant blend at room temperature, Hou Guoliang, Shen Lijun, Li Fuyou, * Bian Zhiqing, Huang Chunhai *, Journal of Physical Chemistry. B, 2006,110 (19): 9452-9460.
5. Abstract: Synthesis, photophysical properties and electrophosphorescent properties of novel iridium (Ⅲ) complexes based on quinoline derivatives, Zhao Qiang, Chang, Li Fuyou, * Ceramic Art, Cao Yong * and Chun Huang Hui *, Acta Organometallic, 2006,25,3631-3638.
honour
Won the second and third prizes of National Natural Science 1 item, the second prize of Science and Technology Progress of State Education Commission, and the Science and Technology Progress Award of He Liang Heli Fund. Professor Huang Chunhui has trained more than 20 doctors of science, two of whom have won hundreds of excellent papers in China (1999, 2003). Three young teachers won the chinese chemical society Young Chemistry Prize. Research fields and interests
1. Fluorescent functional complexes: Design, synthesize and characterize fluorescent complexes, and study their applications in organic electroluminescence, optical microcavity and photochemical sensors.
2. Photoelectric conversion thin film materials: Design, synthesize and characterize molecular-based materials with photoelectric conversion performance, study their photochemical and photophysical properties, modify them on broadband semiconductors, and study their application in solar energy conversion.
Brief biography
As one of the few female scientists, Huang Chunhui has no shelf as a great scientist. Her eyes are easy-going and warm, and talking about problems makes people feel like "Mu Chunhui".
However, when it comes to scientific research, her character is strong and unyielding. This has something to do with her family. Her father is a civil engineer, so Huang Chunhui moved a lot when he was a child. Her ancestral home is Jiangxi, she was born in Hebei, her primary school was in Yunnan, but she spent her middle school days in Shanghai.
In high school, Huang Chunhui moved to Shanghai with her family to attend an ordinary high school, but it was here that she set a lifelong goal and was admitted to the Chemistry Department of Peking University with 195 1.
After graduation, Huang Chunhui 1955 has been engaged in the research on the separation and application of rare earths. The so-called rare earth is a kind of rare earth, which is the general name of 17 element. The 17 elements in rare earths are very similar and difficult to separate. After continuous research by scientists from various countries, it took almost 150 years to separate them. In fact, among the elements, the chemical properties are similar, but the physical properties are far apart, which is beneficial to our application.
China has the largest reserves of rare earth elements in the world, and 80% of the rare earth elements in the world are located in China. But in the past, we could not do without ourselves, so we had to sell raw materials abroad and import products from abroad. From the late 1950s to the early 1960s, China began to separate rare earths by itself. Through the efforts of several generations of scientists, China's output of rare earths has reached the first place in the world, and it is also a big exporter of rare earths.
Academician Huang said that the development from computers as big as several rooms to today's desktops, from transistors as big as wine bottles to points as big as needles, to solve the problems of small size, light weight and multiple functions are the goals that scientists are constantly pursuing: miniaturization of devices and thinning of materials.
It seems that it is no longer a dream to make the materials thin and let the computer TV be carried with you. Academician Huang Chunhui has always chosen cutting-edge topics and always stood at the forefront of discipline development. She said that only in this way can we always know what is happening on the international stage. Science needs accumulation, step by step and down-to-earth. This is exactly what she often teaches students. Only in this way can the quality of the project be improved. This is how Huang Chunhui came step by step.