Akira Fujishima, an internationally renowned photochemical scientist and discoverer of photocatalysis, has been nominated for many Nobel Prizes for his discovery of the photolysis of water on the surface of titanium dioxide single crystals under ultraviolet light, the “Hondo-Fujishima effect” ( Honda-Fujishima Effect), opened a new chapter in photocatalysis research, and was later hailed as the “father of photocatalysis” by academia. Although Professor Akira Fujishima is Japanese, he has a very close relationship with China. This close relationship is reflected in three aspects: exchanges and cooperation, cultivating talents, and learning culture. In the domestic photochemical industry, there is even a good saying about Professor Akira Fujishima, “One family and three academicians, the world is full of peaches and plums”. The Chinese students he has supervised include: Academician Liu Zhongfan of Peking University, Academician Jiang Lei of Beijing University of Aeronautics and Astronautics, Academician Yao Jiannian of the Institute of Chemistry of the Chinese Academy of Sciences. Next, this article focuses on the protagonists of the “one school and three academicians”-Academician Liu Zhongfan, Academician Jiang Lei, Academician Yao Jiannian and their recent research progress.
1. Liu Zhongfan
Peking University Liberal Chair Professor, Academician of the Chinese Academy of Sciences, Academician of the Academy of Sciences of the Developing Countries, the first batch of outstanding talents in the Ten Thousand Talents Program of the Central Organization Department, the first batch of Yangtze River Scholars Distinguished Professors of the Ministry of Education, and the first batch of winners of the National Science Fund for Distinguished Young Scholars. Fellow of the British Physical Society, Fellow of the Royal Society of Chemistry, Fellow of the Chinese Society of Micron and Nanotechnology. He graduated from Changchun University of Technology in 1983, studied in Japan in 1984, received a PhD from the University of Tokyo in 1990, and a postdoctoral fellow at the University of Tokyo and the National Institute of Molecular Science in 1990-1993. He returned to Peking University to teach in June 1993 and was promoted to professor in the same year. He is currently the dean of the Beijing Graphene Research Institute and the director of the Nano Science and Technology Research Center of Peking University. Vice Chairman of the Chinese Chemical Society, Vice Chairman of the China Association for the Advancement of Science and Technology, Chairman of the Zhongguancun Graphene Industry Alliance, Chairman of the Third Committee of the Fengtaiyuan Science and Technology Association of Zhongguancun Science and Technology Park, Member of the Science and Technology Committee of the Ministry of Education, and Deputy Director of the Study Style Construction Committee and International Deputy Director of the Department of Cooperative Studies. Former Director of the Research Center of Modern Physical Chemistry of Peking University (1995–2002), Director of the Institute of Physical Chemistry (2006–2014), Deputy Director of Beijing Municipal Science and Technology Commission (2016–2017), Director of Beijing Low-Dimensional Carbon Materials Engineering Center (2013–2018), Chief scientist of National Climbing Plan (B), 973 Plan and Nano Major Research Project, and academic leader of the National Natural Science Foundation of China “Surface and Interface Nano Engineering” innovative research group (Phase 3), etc. Mainly engaged in the research of nano-carbon materials, two-dimensional atomic crystal materials and nano-chemistry, and made a series of pioneering and leading work in the chemical vapor deposition growth method and application fields of graphene and carbon nanotubes, and is an international representative One of the research team of sexual nano-carbon materials. He has published more than 560 academic papers and applied for more than 100 Chinese invention patents. Won the Japan-China Science and Technology Exchange Association “Ariyama Kantaka Memorial Research Award” (1992), Hong Kong Qiushi Science and Technology Foundation Outstanding Young Scholar Award (1997), China Analysis and Testing Association Science and Technology Award First Prize (2005), Ministry of Education Science and Technology Award Natural Science First Prize (2007), National Natural Science Second Prize (2008, 2017), Chinese Chemical Society-Akzo Nobel Prize in Chemistry (2012), Baosteel Excellent Teacher Special Prize (2012), Japanese Chemical Society Colloid Lectureship Award (2016), Peking University Founder Teacher Special Award (2016), “Beijing Excellent Teacher” (2017), ACS Nano Lectureship Award (2018), etc. The current editor-in-chief of “Acta Phys. Chemistry”, deputy editor-in-chief of “Science Bulletin”, Adv. Mater., ACS Nano, Small, Nano Res., ChemNanoMat, APL Mater., National Science Review and other international journal editors or consultants.
Recent representative results:
1,Angew: Cold-wall chemical vapor deposition method for ultra-clean growth of graphene
Academician Liu Zhongfan of Peking University, Professor Hailin Peng and Professor Lin Li of the University of Manchester demonstrated a simple method for growing ultra-clean graphene films in a large area in a CW-CVD system. The graphene films prepared by this method have Improved optical and electrical properties. The unique distribution of temperature will inhibit the gas phase reaction during the growth process, thereby ensuring that graphene with improved cleanliness is obtained. The clean graphene film is a promising material for applications including transparent electrodes and epitaxial layers. This research provides new insights into the gas phase reaction engineering in the CVD growth of graphene, thereby obtaining high-quality graphene films, and paving the way for the large-scale production of graphene films with improved properties, for the future The application paved the way.
Literature link: https://doi.org/10.1002/anie.202005406
2,ACS Nano: Large-scale synthesis of multifunctional graphene quartz fiber electrode
Academician Liu Zhongfan of Peking University, Researcher Liu Kaihui and othersCombining the excellent electrical properties of graphene with the mechanical flexibility of quartz fibers, a hybrid graphene quartz fiber was designed and prepared by forced flow chemical vapor deposition (CVD) ( GQF). High conductivity, excellent adsorption capacity and fine structure make GQF a promising real-time gas detection method. In addition, taking advantage of the flexibility of graphene and the high strength of quartz fiber, the prepared GQFs can be woven into square meters of GQFF with adjustable sheet resistance. This work not only provides a multifunctional graphene fiber material, but also provides a research direction for the combination of traditional materials and cutting-edge materials, which will help graphene and quartz fibers to achieve industrialization and commercialization in the near future.
Literature link: https://doi.org/10.1021/acsnano.0c01298
3、Nano Lett: Layered graphene is used to quantitatively analyze the interface performance of the dielectric layer collector of lithium-ion batteries
Academician Liu Zhongfan of Peking University and Professor Hailin Peng and others have confirmed the enhanced anti-corrosion performance at the Al current collector/electrolyte interface based on graphene design. The ideal interface. In addition, the researchers demonstrated a mass production method of layered graphene synthesis on a metal foil, demonstrating its technical scalability. Frankly speaking, although its synthesis is carried out at a relatively low temperature, the bottleneck of its commercialization currently lies in its low synthesis efficiency and high cost. This work is expected to open up the graphene market.
Literature link: https://doi.org/10.1021/acs.nanolett.0c00348
Second, Jiang Lei
Jiang Lei, born in Changchun, Jilin in March 1965, inorganic chemist, nanomaterial expert, academician of the Chinese Academy of Sciences, academician of the Academy of Sciences of the Developing Countries, foreign academician of the National Academy of Engineering, researcher of the Institute of Chemistry, Chinese Academy of Sciences, doctoral supervisor, Beijing University of Aeronautics and Astronautics Dean of the School of Chemistry and Environment. In 1987, Jiang Lei graduated from Jilin University with a major in solid physics and stayed at the Department of Chemistry to study for a master’s degree in physical chemistry; in 1990, he continued to study for a doctorate degree at the school; in 1992, he was sent to Tokyo, Japan as a doctoral student jointly cultivated by China and Japan. Studying at university, under the tutelage of the international photochemical scientist Akira Fujishima; in 1994, he received a doctorate from Jilin University and continued to do post-doctoral research at the University of Tokyo; in 1996, he joined the Kanagawa Institute of Science and Technology, Japan Science and Technology Agency; in 1998, he was awarded the Youth Special by the Japanese Ministry of Education Award fund, selected in the Hundred Talents Program of the Chinese Academy of Sciences in the same year; joined the Institute of Chemistry of the Chinese Academy of Sciences in 1999; received funding from the National Science Fund for Distinguished Young Scholars in 2001; concurrently served as the chief scientist of the National Nanoscience Center in 2004; concurrently served as the Beijing University of Aeronautics and Astronautics in Chemistry and Environment in 2008 Dean of the Academy; elected as an academician of the Chinese Academy of Sciences in 2009; elected as an academician of the Academy of Sciences for Developing Countries in 2012; won the 3rd China International Nanoscience and Technology Conference Award in 2015; elected as a foreign academician of the National Academy of Engineering in 2016; won the National Innovation Competition in 2017 prize . Mainly engaged in the preparation of biomimetic functional interface materials and the study of physical and chemical properties, revealing the relationship between the structure and performance of the surface with special wettability in nature, and proposing a “binary synergistic nano interface material” design system. In the preparation, characterization and property research of super amphiphilic/super amphophobic materials, invented the preparation of a variety of practically valuable superhydrophobic interface materials such as template method, phase separation method, self-assembly method, electrospinning method, etc. method. A variety of bionic superhydrophobic interface materials with special functions have been prepared. In 2017, he won the German Humboldt Research Award (Humboldt Research Award); in 2016, he won the Nikkei Asia Prizes (Nikkei Asia Prizes); UNESCO Nanotechnology and Nanotechnology Contribution Award (UNESCOMedal “For Contribution to the Development of Nanoscience and Nanotechnologies) “); In 2015, he won the ChinaNANO Award (the first Chinese winner); in 2014, he was awarded the MRS Mid-Career Researcher Award by the American Society of Materials as the first winner in mainland China; in the same year, he was awarded the Thomson Reuters Highly Cited Scientist in the field of chemistry and materials Award and the Most International Citation Influential Award; 2014 Chinese Academy of Sciences Outstanding Scientific and Technological Achievement Award; 2013 He Liang He Li Science and Technology Award; 2011 Third World Academy of Sciences Chemistry Award; 2005 The result of “super-hydrophilic construction of binary synergistic nano-interface materials” won the second prize of the National Natural Science Award. He has won the first prize of the Beijing Science and Technology Award, the Youth Chemistry Award of the Chinese Chemical Society, and the China Youth Science and Technology Award. In 2007, he was hired as the chief scientist of the “Bionic Intelligent Nanocomposite Materials” project of the major scientific research program of “Nano Research”.
Recent representative results:
1、Angew: Tailor-made polyethersulfone bipolar membrane for high power density osmotic energy generator
Academician Jiang Lei of the Technical Institute of Physics and Chemistry of the Chinese Academy of Sciences, researcher Wen Liping andXiang-Yu Kong synthesized a negatively charged sulfonated polyethersulfone (PES) from the same PES precursor. -SO3H) and positively charged imidazole-type polyethersulfone (PES-OHIM), and a series of double-layers were prepared by solvent-free induced phase separation (NIPS) and spin coating (SC) methods.极膜。 The film. Among them, the PES-SO3H layer serves as a functional layer, and the PES-OHIm layer serves as a supporting layer. Due to the high molecular weight of poly(aryl ether sulfone), the membrane exhibits good physical properties. The researchers studied that under a 50-fold salinity gradient, the maximum power density of the bipolar membrane can reach ~6.2 W/m2, which is 13% higher than Nafion 117. This work demonstrates the strategy of designing bipolar membranes and illustrates its superiority in salinity gradient power generation systems.
Literature link: https://doi.org/10.1002/anie.202006320
2,Nature Commun: Three-dimensional hydrogel interface membrane to achieve efficient conversion of osmotic energy
Academician Jiang Lei and researcher Wen Liping of the Institute of Physics and Chemistry of the Chinese Academy of Sciences and others High-performance permeation was observed in the newly designed heterogeneous membrane prepared by coating a charged polyelectrolyte hydrogel on the ANF membrane Can be converted. Due to the inherent multi-level asymmetry, the hybrid membrane exhibits charge-controlled asymmetric ion transport behavior, which can greatly reduce ion polarization. Moreover, the polyelectrolyte gel with a broad charged 3D network can act as an ion diffusion promoter, thereby greatly improving the interface transmission efficiency. Such a membrane design greatly promotes the diffusion of ions across the membrane and helps to achieve a high power density of 5.06 W m-2, which is the highest value of osmotic energy conversion based on nanofluid membranes. In addition, the good tunability of polyelectrolyte hydrogel membrane function can systematically understand the controllable ion diffusion mechanism and its influence on the overall membrane performance. This work highlights the importance of interface design in the construction of nanofluid membrane-based osmotic energy conversion systems, and proves the great prospect of polyelectrolyte gel as a high-performance interface material in the field of heterogeneous permeation power generation.
Literature link: https://www.nature.com/articles/s41467-020-14674-6
3,ACS Nano: Super-hydrophilic and hydrophilic high-flexibility monomer for unidirectional liquid penetration Layer porous membrane
Beijing University of Aeronautics and Astronautics Academician Jiang Lei, Associate Professor Tian Dongliang and others developed a super-hydrophilic-hydrophilic single-layer porous PES membrane with special micropores and nanopores on the opposite surface through a phase transfer method This membrane can be used to program one-way liquid penetration and an effective anti-gravity one-way liquid ascending agent in a wide range of pH values; that is, water droplets can spontaneously penetrate from one surface to another surface, but due to the difference between diffusion and penetration If the membrane is turned over, the water droplets will be blocked. The film has excellent durability, super flexibility, corrosion resistance and low temperature resistance. Through controlled directional transmission capabilities, such as one-way permeation, two-way non-permeation and two-way permeation, PES membrane gradients with different pore diameters can also be obtained. This research provides a new approach for the design of porous materials and intelligent dehumidification materials, and has broad application prospects in biomedical materials, advanced functional textiles, and engineering dehumidification materials.
Literature link: https://pubs.acs.org/doi/10.1021/acsnano.0c02558
3. Yao Jiannian
Yao Jiannian, researcher, physical chemist, received a doctorate degree from the Faculty of Engineering, University of Tokyo, Japan. He is currently a researcher at the Institute of Chemistry of the Chinese Academy of Sciences, chairman of the Chinese Chemical Society, member of the 13th National People’s Congress Standing Committee, vice chairman of the National People’s Congress Social Construction Committee, agricultural industry Vice Chairman of the Party Central Committee, Standing Committee Member of the Ninth National Committee of the Chinese Association for Science and Technology, Fellow of the Royal Society of Chemistry and the International Society of Nanomanufacturing, and Consultant of the China Comprehensive Research Center of the Japan Science and Technology Agency (JST). In 2005, he was elected an academician of the Chinese Academy of Sciences. He has been engaged in the basic and application research of new optical functional materials for a long time, and has made pioneering contributions in low-dimensional materials and nano-optoelectronics. So far Nature, Acc. Chem. Res., Chem. Soc. Rev., J. Am. Chem. Soc., Angew. Chem. Int. Ed., Adv. Mater. and other international chemistry and materials circles published papers More than 500 articles (he cited more than 15,000 times), published 4 co-authors and 1 co-translated work, served as editor-in-chief of “CCS Chemistry”, editor-in-chief of “Photoelectronic Science and Technology Frontier Series”, and the third edition of “China Encyclopedia” Associate editor of chemistry, chief editor of physical chemistry branch. In 1995, he was awarded the title of Excellent Overseas Student by the Education Office of the Chinese Embassy in Japan. In the same year, he was funded by the National Science Fund for Distinguished Young Scholars. National Excellent Doctoral Dissertation Instructor” title. In the same year, he was the academic leader for “Design, Preparation and Characterization of Optical Functional Materials”, which was funded by the Innovative Research Group of the National Natural Science Foundation of China; In 2004, he was awarded “basic research on several new optical functional materials” And Application Exploration” won the second prize of the National Natural Science Award (first prize winner); in 2013, won the first prize of the China Analysis and Testing Association Science and Technology Award (CAIA) (second prize winner); in 2014 with the achievement of “low-dimensional light function “Controlled synthesis and physical and chemical properties of materials” won the second prize of the National Natural Science Award (first prize winner); in 2015, he won the Heliang Heli Foundation Science and Technology Progress Award; in 2016, he won the Chinese Academy of Sciences Outstanding Achievement Award. In addition, he has won the Outstanding Mentor Award of the Chinese Academy of Sciences many times. Academician Yao Jiannian studies the preparation and performance of organic functional nanostructures, the morphology control of organic nanostructures based on molecular design, the control of the dynamic process of low-dimensional structure formation by liquid colloidal chemical reaction method, the specific photophysics of organic nanostructures Remarkable achievements have been made in many aspects such as photochemical performance research. Just like in the research of organic functional nanostructures, taking into account the extraordinary achievements of nanostructures in the field of inorganic semiconductors, as a class of important photoelectric information functional materials, the diversity of organic molecular structures, designability, and material synthesis and preparation methods The above flexibility makes the research of organic nanostructures particularly important. Yao Jiannian’s main research work is to prepare organic nano/submicron structures through molecular design and control of weak interactions between molecules, to study the photophysical and photochemical properties of these nano/submicron structures, and to develop some application foundations on this basis Research. He successively discovered the confinement effect of intermolecular charge transfer excitons, and the size dependence of various photophysical and photochemical properties; developed a variety of methods for preparing organic nanostructures, and thus developed a variety of low-dimensional organic nanofunctions Materials, including polychromatic luminescence, white light materials, optical waveguide and ultraviolet laser materials, etc.
Recent representative results:
1、Angew:Adjust the charge transfer of lattice oxygen in monoatomic doped titanium dioxide toHER
Academician Yao Jiannian of the Institute of Chemistry of the Chinese Academy of Sciences and Professor Wang Xi of Beijing Jiaotong University use TM1/TiO2 and HER as model catalysts and model reactions, respectively, The charge transfer under catalysis is systematically studied. The activity of the O active site can be adjusted not only by replacing the closest atom (Ti) with other TM atoms, but also by creating an O vacancy at its second closest site. Both methods have been shown to play a key role in regulating the transfer of charge to O and changes in HER performance. The experimental results further confirmed that this adjustment is feasible, so that the relationship between charge transfer and catalysis can be established. This work revealed the impact of AR on charge transfer and paved the way for the design of efficient and environmentally friendly catalysts by precisely adjusting the activity.
Literature link: https://doi.org/10.1002/anie.202004510
2、JACS: Photoluminescence anisotropy in polycrystalline organic nanocrystals
The team of Academician Yao Jiannian of the Institute of Chemistry, Chinese Academy of Sciences successfully prepared two polymorphic nanocrystals PtD-g and PtD-y from platinum(II)-β-diketonate complex. These materials have excellent light collection and EnT properties, which are achieved by doping with low-energy red-emitting platinum acceptors. In addition, significant PL anisotropy coupled with the EnT process was observed in pure and doped PtD-y crystals. For pure PtD-y donor and doped acceptor emission, the highest PL anisotropy ratio reached 0.87 and 0.82, respectively, indicating that the excitation anisotropy of the donor can be effectively transferred to the acceptor and has significant Magnification. This work shows that the stacking method has an important influence on the excited state and PL anisotropy of crystalline materials, indicating the huge application potential of polycrystalline nanostructures in multifunctional nanophotonic devices.
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