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| 1 | Microreaction Technology for Synthetic Chemistry显示文摘Microreaction technology as an emerging tool for synthetic chemistry has been extensively applied in academic and industrial researches. Normally, synthetic chemists used to running reactions in the classical glassware for cen turies are unfamiliar and unaccustomed to use microreaction tech no logy for routine synthetic work. This review tries to give a general introduction of the capabilities of microreaction tech no logy. | Jian Deng Jisong Zhang Kai Wang Guangsheng Luo | 2019 | Chinese Journal of Chemistry2019，37，2： | 5 |
| 2 | Reaction kinetics determination based on microfluidic technology显示文摘Microfluidic technology has been successfully applied to determine the reaction kinetics relying on its great characteristics including narrow residence time distribution,fast mixing,high mass and heat transfer rates and very low consumption of materials.In this review,the recent progresses about the reaction kinetics measured in microreactors are comprehensively organized,and the kinetic modeling thoughts,determination methods and essential kinetic regularities contained in these studies are summarized according to the reaction types involving nitration,oxidation,hydrogenation,photochemical reaction,polymerization and other reactions.Besides,the significant advances in the innovation of microplatform are also covered.The novel reactor configuration methods were established mainly to achieve rapid and efficient data collection and analysis.Finally,the advantages of microfluidic technology for the kinetic measurement are summarized,and a perspective for the future development is provided. | Zifei Yan Jiaxin Tian Chencan Du Jian Deng Guangsheng Luo | 2022 | Chinese Journal of Chemical Engineering2022，35，1： | 2 |
| 3 | Continuous, homogeneous and rapid synthesis of 4-bromo-3-methylanisole in a modular microreaction system显示文摘4-Bromo-3-methylanisole is mainly used to synthesize black fluorane dye(2-anilino-3-methyl-6-dibutylaminofluorane, ODB-2), which is one of the most important heat and pressure-sensitive dyes in the manufacture of thermal papers. Compared to the industrial heterogeneous batch process, a continuous homogeneous bromination technology in a modular microreaction system has been developed, and 4-bromo-3-methylanisole has been successfully prepared through high-selective mono-bromination of 3-methylanisole with Br2 solution in CHCl3. In optimal conditions, the content of bis-brominated byproducts can be controlled less than 0.5%,which is superior to the industrial standard with 99.5% 3-methylanisole conversion at very short residence time and mild reaction temperature. | Pei Xie Kai Wang Jian Deng Guangsheng Luo | 2020 | Chinese Journal of Chemical Engineering2020，28，8： | 2 |
| 4 | Ideality analysis and general laws of bubble swarm microflow for large-scale gas-liquid microreaction processes显示文摘The flow ideality of bubbly microflow remains unclear even though it is vital for the design of microreactors,especially the ideality of bubble swarm microflow for large-scale gas-liquid microreaction processes.This work is the first time to report the ideality analysis of the microbubble swarm in a relatively large microchannel.The bubble swarm microflow has undergone two conditions:quasihomogeneous plug flow and liquid phase/gas-liquid qua si-homogeneous phase two-phase laminar flow.Both the deviations of void fraction and bubble velocity from the ideal plug flow can divide into two parts,and the two transition points simultaneously happen at the velocity ratio of 1.25.There exists a critical capillary number to maintain the quasi-homogeneous plug flow,which could be regarded as the general laws for the design of gas-liquid microreactors.Finally,a novel model is developed to predict the bubble velocity.This work could be very helpful for the large-scale gas-liquid microreactors design. | Lin Sheng Yuchao Chen Jian Deng Guangsheng Luo | 2022 | Chinese Journal of Chemical Engineering2022，，10： | 1 |
| 5 | The average size of Si nanoparticles prepared by pulsed laser ab- lation in the gas mixture of He/Ar,Ne/Ar or He/Ne 显示文摘 | WANG Yinglong DENG Zeehao FU Guangsheng | 2006 | Thin Solid Films2006，515，4： | 1 |
| 6 | The average size of Si nanoparticles prepared by pulsed laser ablation in the gas mixture of He/Ar, Ne/Ar or He/Ne显示文摘 | WANG Yinglong DENG Zechao FU Guangsheng | 2006 | Thin Solid Films2006，515，4： | 1 |
| 7 | The average size of Si nanoparticles prepared by pulsed laser ablation in the gas mix- ture of He/Ar, Ne/Ar or He/Ne显示文摘 | Wang Yinglong Deng Zechao Fu Guangsheng | 2006 | Thin Solid Films2006，515，4： | 1 |
| 8 | The average size of Si nanoparticles prepared by pulsed laser ablation in the gas mixture of He/Ar,Ne/Ar or He/Ne显示文摘 | WANG Yinglong DENG Zechao FU Guangsheng | 2006 | Thin Solid Films2006，515，4： | 1 |
| 9 | Design and Fabrication of Reflective Phase Shifter for Two-Dimensional Terahertz Beam-Scanning Reflectarray显示文摘A reflective phase shifter is proposed to realize the two-dimensional beam-scanning reflectarray.The reflectarray is composed of double-dipole resonant elements in which the phase shift is implemented by applying a driving voltage to the liquid crystal(LC). A 30 ×30 phase shifter sample is fabricated on a quartz substrate with a 480 μm thickness and a 4 cm × 4 cm area.According to the experimental results, 0 to 360° phase shift can be achieved within the bandwidth of 5 GHz. In order to accomplish two-dimensional beam-scanning and reduce the negative impact of driving lines on the reflectarray, a new LC driving method is developed. To verify the accuracy of the proposed approach, three samples of different driving line numbers are designed using the above-mentioned phase shifter, which all have achieved a0-360° phase shift in the bandwidth of 4 GHz. Considering the influence of LC anisotropy and inhomogeneity, an improved calculation result is obtained and compared with experimental data. | YANG Jun YIN Mingjun GAO Haoyu YIN Zhiping YE Yang DENG Guangsheng LU Hongbo | 2022 | Chinese Journal of Electronics2022，31，3： | 0 |
| 10 | Lifetime of 2+ State in 106Cd显示文摘Several nuclei including 106Cd in Aabout 100mass region have been predicted to exhibit E(5)critical point symmetry[1].However,the E(5)symmetry in 106Cd is still hard to be identified.One of difficulties is that the B(E2)information,or the mean lifetime,of 2+ state in 106Cd deter- | ZHONG Jian MA Yingjun WU Xiaoguang ZHENG Yun LI Guangsheng LI Congbo ZHU Baoji CHEN Qiming DENG Litao ZHOU Wenkui | 2017 | Annual Report of China Institute of Atomic Energy2017，，1： | 0 |
| 11 | Broadband and High-Temperature-Resistant Microwave Absorber Using Additively Manufactured Ceramic Substrate显示文摘This paper presents an approach to achieve broadband absorption and temperature resistance using ceramic sub-strates.A specially formulated slurry suitable for additive manufacturing technology was developed to fabricate ceramic substrates with lattice structures.The lattice structure not only reduces the weight of the absorber but also facilitates the broadening of the absorption bandwidth.The experimental results demonstrate that the pro-posed structure exhibits absorption rates exceeding 88%within the frequency range of 19.9-30.41 GHz,with a relative absorption bandwidth of 41.8%under normal incidence.Furthermore,the absorber’s performance was assessed under high temperatures of up to 200℃,revealing absorption spectra that closely match the initially measured spectrum.Additive-manufactured ceramic lattice structures present a promising avenue for designing multifunctional broadband microwave absorbers capable of withstanding elevated temperatures. | Baihong Chi Kuan Lu Pengfei Wang Mengzhu Li Yuanyuan Li Xinyu Geng Guangsheng Deng | 2023 | Chinese Journal of Mechanical Engineering(Additive Manufacturing Frontiers)2023，2，4： | 0 |
| 12 | Determination of interfacial tension and viscosity under dripping flow in a step T-junction microdevice显示文摘Microfluidic approaches for the determination of interfacial tension and viscosity of liquid-liquid systems still face some challenges.One of them is liquid-liquid systems with low interfacial and high viscosity,because dripping flow in normal microdevices can’t be easily realized for the systems.In this work,we designed a capillary embedded step T-junction microdevice to develop a modified microfluidic approach to determine the interfacial tension of several systems,specially,for the systems with low interfacial tension and high viscosity.This method combines a classical T-junction geometry with a step to strengthen the shear force further to form monodispersed water/oil(w/o)or aqueous two-phase(ATP)droplet under dripping flow.For systems with low interfacial tension and high viscosity,the operating range for dripping flow is relative narrow whereas a wider dripping flow operating range can be realized in this step Tjunction microdevice when the capillary number of the continuous phase is in the range of 0.01 to 0.7.Additionally,the viscosity of the continuous phase was also measured in the same microdevice.Several different systems with an interfacial tension from 1.0 to 8.0 m N·m^(-1) and a viscosity from 0.9 to 10 m Pa·s were measured accurately.The experimental results are in good agreement with the data obtained from a commercial interfacial tensiometer and a spinning digital viscometer.This work could extend the application of microfluidic flows. | Li Ma Yongjin Cui Lin Sheng Chencan Du Jian Deng Guangsheng Luo | 2022 | Chinese Journal of Chemical Engineering2022，35，2： | 0 |
| 13 | A novel method for fast and continuous preparation of superfine titanium dioxide nanoparticles in microfluidic system显示文摘Previously we had developed a microfluidic system that can be easily fabricated by bending a stainless-steel tube into large circular loops.In this study,a fast and continuous preparation method for superfine TiO_(2) nanoparticles(TiO_(2)-NPs)was developed for the aforementioned microfluidic system.The proposed method can yield anatase TiO_(2) in 3.5 min,in contrast to the traditional hydrothermal reaction method,which requires hours or even days.Different reaction conditions,such as reaction temperature(120-200℃),urea concentration(20-100 g/L),and tube length(5-20 m)were investigated.X-ray diffraction and Brunauer-Emmett-Teller analysis indicate that the as-prepared TiO_(2)-NPs have crystalline sizes of 4.1-5.8 nm and specific surface areas of 250.7-330.7 m^(2)/g.Transmission electron microscopy images show that these TiO_(2)-NPs have an even diameter of approximately 5 nm.Moreover,because of their small crystalline sizes and large specific surface areas,most of these as-prepared TiO_(2)-NPs exhibit considerably better absorption and photocatalytic performance with methylene blue than commercial P5 TiO_(2) does. | Nan Deng Yujun Wang Guangsheng Luo | 2022 | Particuology2022，20，1： | 0 |
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