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| 1 | Surfactants Mediated Synthesis of Highly Crystalline Thin Films of Imine-Linked Covalent Organic Frameworks on Water Surface显示文摘Imine-linked covalent organic frameworks(COFs)have attracted extensive attention due to designable structures,tunable properties,and excellent thermal and chemical stability.They were typically obtained as insoluble and unprocessable powders,which seriously limits their full promise.Progress has been made in the synthesis of thin films of imine-linked COFs by interfacial synthesis.However,the synthesis of highly crystalline,self-supporting thin films of COFs remains challenging.Here,we employed a surfactants-mediated method to synthesize such films at an air-water interface,showed the films could be transferred onto arbitrary substrates on demand,and demonstrated the generality of the methodology with two different COFs.We found that the length of hydrophobic segments of surfactants played a key role in determination of the crystallinity and single crystalline domain size of the films.This work provides a feasible strategy to generate highly crystalline thin films of COFs. | Zhaowei Ou Zihao Liang Xin Dong Fanglin Tan Li Gong Pei Zhao Honglei Wang Wei Liu Zhikun Zheng | 2021 | Chinese Journal of Chemistry2021，39，12： | 2 |
| 2 | Digital Channelization Technology for HF Communication Base on Fast Filter Bank显示文摘Channelization typically realized by digital filter banks is an important topic in high frequency(HF) communication and software defined radios(SDR) areas. Channelization has a rigorous requirement for the characteristic of frequency response, e.g., steep transitional band and sharp decay. To address this issue, we investigated the feasibility and implementation of applying fast filter bank(FFB) in channelization in this paper. We analyzed the butterfly structure of FFB similar with fast Fourier transform(FFT), in which prototype sub-filters are cascaded to achieve a low complexity. Hence, it is suitable for designing filter bank with steep transitional band and sharp decay in stop-band. Moreover, we designed a pipelined structure of FFB to achieve a balance between area and performance. Design example shows that FFB has lower computational complexity compared with the other filter banks. | Yixin Fan Fanglin Gu Xiaobo Tan Ling Wang | 2018 | China Communications2018，15，9： | 2 |
| 3 | Increased Expression of Toll-Like Receptor 2 in Rat Diabetic Nephropathy显示文摘 | Li Fanglin Yang Niansheng Zhang Lili Tan Hechang Huang Bin Liang Yingjie Chen Miaoyan Yu Xueqing | 2010 | American Journal of Nephrology2010，，2： | 1 |
| 4 | Aqueous Synthesis of Covalent Organic Frameworks as Photocatalysts for Hydrogen Peroxide Production显示文摘Covalent organic frameworks(COFs)are crystalline porous polymers with designable structures and properties.Their crystallization typically relies on trialand-error experimentation involving harsh conditions,including organic solvents,presenting significant obstacles for rational design and large-scale production.Herein,we present a liquid crystal-directed synthesis methodology and its implementation for up to gram-scale production of highly crystalline COFs in water and air.It is compatible with monomers of different structures,shape,size,length of side chains,and electron-donating,electron-accepting,and heterocyclic substitutions near reactive sites.Seventeen types of donor-acceptor two-dimensional COFs including four types of new ones and a three-dimensional COF with a yield of up to 94%were demonstrated,showing great generality of the method.The as-synthesized donor-acceptor COFs are organic semiconductors and contain macropores besides intrinsic mesopores which make them attractive catalysts.The production of H_(2)O_(2)under visible light in water was studied and the structure-property relationships were revealed.The production rate reached 4347μmol h^(−1)gcat^(−1),which is about 467%better than that of the benchmark photocatalyst g-C_(3)N_(4).This study will inspire the mild synthesis and scale-up of a wide spectrum of COFs and organic semiconductors as efficient catalysts,promote their structure-property investigation,and boost their applications. | Fanglin Tan Yuanyuan Zheng Zhipeng Zhou Honglei Wang Xin Dong Jing Yang Zhaowei Ou Haoyuan Qi Wei Liu Zhikun Zheng Xudong Chen | 2022 | CCS Chemistry2022，4，12： | 1 |
| 5 | Synthesis of Thin Film of a Three-Dimensional Covalent Organic Framework as Anti-counterfeiting Label显示文摘Film plays a key role in the sustainable development of our society.Freestanding thin films of two-dimensional covalent organic frameworks(coFs)have been produced by interface,spin coating,microwave-assisted synthesis,and screen printing methods and are applied in nanofitration,molecular separation,photochemical sensing,anion transport,heat conduction,and proton conduction.On the other hand,the synthesis of their three-dimensional(3D)analogues and subsequent integration in devices remains challenging.Herein,self-supporting thin films of a three-dimensionai COF with tunable thickness was created by a stearic acid mediated synthesis methodology on water surface at room temperature in air.The film could be transferred onto arbitrary substrate,and when supported on indium tin oxide glass,it exhibited irreversible electrochromism.The optical feature made it act as a one-time anti-counterfeiting label in an electrochemical device.This work will inspire the synthesis of thin films of 3D COFs as well as other 3D materials,and boost their property and application exploration. | Xin Dong Jing Yang Honglei Wang Pei Zhao Fanglin Tan Zhipeng Zhou Zhaowei Ou Li Gong Wei Liu Xudong Chen Zhikun Zheng | 2022 | Chinese Journal of Chemistry2022，40，10： | 1 |
| 6 | Sn-doped cobalt containing perovskite as the air electrode for highly active and durable reversible protonic ceramic electrochemical cells显示文摘One potential solution to the problems of energy storage and conversion is the use of reversible protonic ceramic electrochemical cells(R-PCEC),which are based on the solid oxide fuel cell(SOFC)technology and offer a flexible route to the generation of renewable fuels.However,the R-PCEC development faces a range of significant challenges,including slow oxygen reaction kinetics,inadequate durability,and poor round-trip efficiency resulting from the inadequacy of an air electrode.To address these issues,we report novel B-sites doped Pr_(0.5)Ba_(0.5)Co_(0.7)Fe_(0.3)O_(3−δ)(PBCF)with varying amounts of Sn as the air electrode for R-PCEC to further enhance electrochemical performance at lower temperatures.At 600℃,R-PCEC with an air electrode consisting of Pr_(0.5)Ba_(0.5)Co_(0.7)Fe_(0.25)Sn_(0.05)O_(3+δ)has achieved peak power density of 1.12 W∙cm^(−2) in the fuel cell mode and current density of 1.79 A∙cm^(−2) in the electrolysis mode at a voltage of 1.3 V.Moreover,R-PCECs have shown good stability in the electrolysis mode of 100 h.This study presents a practical method for developing durable high-performance air electrodes for R-PCECs. | Min Fu Wenjing Hu Hua Tong Xin Ling Linggui Tan Fanglin Chen Zetian Tao | 2024 | Journal of Advanced Ceramics2024，13，1： | 0 |
| 7 | Physiological Responses of Mangroves to Flooding and Anaerobic Stress显示文摘Flooding and anaerobic stress is one of the stress factors affecting mangroves.Mangrove species,differing considerably in their susceptibility to the stress,are distributed in different tidal elevation zones.Growing in regular seawater dipping and anoxic mud,mangroves have developed a set of adaptation mechanisms of flooding and anaerobic stress.This paper emphatically reviewed four physiological responses of mangroves to flooding and anaerobic stress,i.e.nutrition allocation, photosynthesis and respiration,carbon and nitrogen metabolism and antioxidant mechanism.Finally,it was proposed that studies should be further focused on the path of roots metabolism,non-structure carbohydrates and secondary metabolism of the mangroves under flooding and anaerobic condition. | Luo Meijuan Cui Lijuan Zhang Shougong Tan Fanglin Ye Gongfu | 2012 | Chinese Forestry Science and Technology2012，11，3： | 0 |
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