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Parallel photoreactor development with enhanced photon efficiency and reproducibility based on laws of optics

Green Synthesis and Catalysis 2023年第2期4卷 169-172页

作者： Rizvi Syed Aal E Ali Yilin Zhou Kai Gong Xuefeng Jiang Shanghai Key Laboratory of Green Chemistry and Chemical Process School of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai200062China State Key Laboratory of Estuarine and Coastal Research East China Normal UniversityShanghai200062China State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China

A lab-scale parallel photoreactor model has been developed for broad applications in organic ***,angle,and distance in the reactor are systematically optimized for achieving high reproducibility under the guidance of the Inverse Square Law and Lambert’s Cosine Law,which were first applied in the design of the *** of photon efficiency is realized via 3-point irradiation and broad-band light reflector of *** flux is measured with an optical power meter with its display and adjustment suggested being integrated into the photoreactor for the first time.

关键词： Photochemistry Parallel photo reactor Photo reactor design Photon efficiency Optical laws

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Research Progress on Thermal Shock Behavior of Porous Ceramics

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China's Refractories 2022年第1期31卷 24-29页

作者： YAN Mingwei LIU Kaiqi ZHANG Jiayu SUN Guangchao LI Xiang SI Kaikai State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100019China University of Chinese Academy of Sciences Beijing 100049China

Thermal-mechanical coupling effect causes a large stress within porous ceramics at high temperatures,resulting in strength attenuation and product reliability *** shock resistance is one of the key factors to characterize the reliability of ceramic materials under thermal-mechanical coupling *** is important to study the thermal shock resistance of the porous ceramics to evaluate their service performance and improve their service *** better evaluate the effect of the thermal shock resistance on properties of the porous ceramics,the evaluation theories,experimental characterization methods and influencing factors about the thermal shock performance of the porous ceramics were reviewed in this paper,and some future research directions were prospected.

关键词： porous ceramics thermal-mechanical coupling thermal shock resistance evaluation theory influence factor

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Partially charged single-atom Ru supported on ZrO_(2) nanocrystals for highly efficient ethylene hydrosilylation with triethoxysilane

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Nano Research 2022年第7期15卷 5857-5864页

作者： Mingyan Li Shu Zhao Jing Li Xiao Chen Yongjun Ji Haijun Yu Dingrong Bai Guangwen Xu Ziyi Zhong Fabing Su Key Laboratory of Resources Chemicals and Materials(Shenyang University of Chemical Technology) Ministry of EducationShenyang 110142China State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Faculty of Materials and Manufacturing Institute of Advanced Battery Materials and DevicesBeijing University of TechnologyBeijing 100124China Department of Chemical Engineering Beijing Key Laboratory of Green Chemical Reaction Engineering and TechnologyTsinghua UniversityBeijing 100084China School of Light Industry Beijing Technology and Business UniversityBeijing 100048China Institute of Industrial Chemistry and Energy Technology Shenyang University of Chemical TechnologyShenyang 110142China Department of Chemical Engineering Guangdong Technion-Israel Institute of Technology(GTIIT)Shantou 515063China Technion-Israel Institute of Technology(IIT) Haifa 32000Israel

Homogeneous noble metal catalysts used in alkene hydrosilylation reactions to manufacture organosilicon compounds commercially often suffer from difficulties in catalyst recovering and recycling,undesired disproportionation reactions,and energyintensive purification of ***,we report a heterogeneous 0.5Ruδ+/ZrO_(2) catalyst with partially charged single-atom Ru(0.5 wt.%Ru)supported on commercial ZrO_(2) nanocrystals synthesized by the simple impregnation method followed by H2 *** used in the ethylene hydrosilylation with triethoxysilane to produce the desired ethyltriethoxysilane,0.5Ruδ+/ZrO_(2) showed excellent catalytic performance with the maximum Ru atom utilization and good recyclability,even superior to homogeneous catalyst(RuCl3·H2O).Structural characterizations and density functional theory calculations reveal the atomic dispersion of the active Ru species and their unique electronic properties distinct from the homogeneous *** reaction route over this catalyst is supposed to follow the typical Chalk-Harrod *** highly efficient and supported singleatom Ru catalyst has the potential to replace the current homogeneous catalyst for a greener hydrosilylation industry.

关键词： single-atom Ru heterogeneous catalysts hydrosilylation reaction high performance

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Ionic liquids for CO_(2) electrochemical reduction

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Chinese Journal of Chemical engineering 2021年第3期34卷 75-93页

作者： Fangfang Li Francesca Mocci Xiangping Zhang Xiaoyan Ji Aatto Laaksonen Energy Engineering Division of Energy ScienceLuleåUniversity of TechnologyLuleå97187Sweden Department of Chemical and Geological Sciences University of CagliariMonserrato 09042Italy CAS Key Laboratory of Green Process and Engineering Beijing Key Laboratory of Ionic Liquids Clean ProcessState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China Division of Physical Chemistry Department of Materials and Environmental ChemistryArrhenius LaboratoryStockholm UniversityStockholm 10691Sweden Center of Advanced Research in Bionanocojugates and Biopolymers “Petru Poni”Institute of Macromolecular ChemistryIasi 700469Romania State Key Laboratory of Materials-Oriented and Chemical Engineering Nanjing Tech UniversityNanjing 211816China

Electrochemical reduction of CO_(2) is a novel research field towards a CO_(2)-neutral global economy and combating fast accelerating and disastrous climate changes while finding new solutions to store renewable energy in value-added chemicals and *** liquids(ILs),as medium and catalysts(or supporting part of catalysts)have been given wide attention in the electrochemical CO_(2) reduction reaction(CO_(2) RR)due to their unique advantages in lowering overpotential and improving the product selectivity,as well as their designable and tunable *** this review,we have summarized the recent progress of CO_(2) electro-reduction in IL-based electrolytes to produce higher-value *** then have highlighted the unique enhancing effect of ILs on CO_(2) RR as templates,precursors,and surface functional moieties of electrocatalytic ***,computational chemistry tools utilized to understand how the ILs facilitate the CO_(2) RR or to propose the reaction mechanisms,generated intermediates and products have been discussed.

关键词： Carbon dioxide Ionic liquids Electro-reduction Electrolyte Electrocatalytic material Computer simulation

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Stimuli-Responsive lonic Liquids and the Regulation of Aggrega-tion Structure and Phase Behavior

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Chinese Journal of Chemistry 2021年第3期39卷 729-744页

作者： Xiao-Qing Yuan Ya-Qin Zhang Zhi-Yong Li Feng Huo Yi-Hui Dong Hong-Yan He Beijing Key Laboratory of lonic Liquids Clean Process CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBejling 100190China Dalian National Laboratory for Clean Energy DalianLiaoning 116023China Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chermical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal UniversityXinxiangHenan 453007China

lonic liquids with stimuli-responsive characteristics are an essential branch in the comprehensive ionic liquids'family,which can meet the controllable and reversible needs in practical applications with different stimulation *** this review,we summarize the recent research progress of these stimuli-responsive ionic liquids,mainly focusing on their chemical structures,properties,responsive mechanism,aggregation structures,and phase behaviors,which were driven by external stimuli,such as CO2,magnetism,light,temperature,redox,and ***,the particular or potential applications of stimuli-responsive ionic liquids are expounded in various fields of science,including catalytic reaction,extraction,separation,nano-material preparation,and gas *** the end,the challenges and strategies of the subject are briefly *** is expected that this review will contribute to the rational design and applications of stimu-liresponsive ionic liquids in the future.

关键词： lonic liquids Stimuli Responsive Aggregation Phase behavior

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Hollow structures as drug carriers:Recognition,response,and release

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Nano Research 2022年第2期15卷 739-757页

作者： Decai Zhao Nailiang Yang Lekai Xu Jiang Du Yang Yang Dan Wang State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Green Catalysis Center and College of ChemistrySchool of Materials Science and EngineeringZhengzhou UniversityZhengzhou 450001 China Department of Thoracic Surgery Shanghai Pulmonary HospitalSchool of MedicineTongji UniversityShanghai 200433China School of Materials Science and Engineering Tongji UniversityShanghai 201804China

Hollow structures have demonstrated great potential in drug delivery owing to their privileged structure,such as high surface-to-volume ratio,low density,large cavities,and hierarchical *** this review,we provide a comprehensive overview of hollow structured materials applied in targeting recognition,smart response,and drug release,and we have addressed the possible chemical factors and reactions in these three *** advantages of hollow nanostructures are summarized as follows:hollow cavity contributes to large loading capacity;a tailored structure helps controllable drug release;variable compounds adapt to flexible application;surface modification facilitates smart responsive ***,because the multiple physical barriers and chemical interactions can be induced by multishells,hollow multishelled structure is considered as a promising material with unique loading and releasing ***,we conclude this review with some perspectives on the future research and development of the hollow structures as drug carriers.

关键词： hollow structure drug delivery system carriers spatiotemporal

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Observation of interlayer excitons in trilayer type-Ⅱ transition metal dichalcogenide heterostructures

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Nano Research 2022年第10期15卷 9588-9594页

作者： Biao Wu Haihong Zheng Junnan Ding Yunpeng Wang Zongwen Liu Yanping Liu School of Physics and Electronics Hunan Key Laboratory for Super-microstructure and Ultrafast ProcessCentral South UniversityChangsha 410083China State Key Laboratory of High-Performance Complex Manufacturing Central South UniversityChangsha 410083China School of Chemical and Biomolecular Engineering The University of SydneyNSW 2006Australia Shenzhen Research Institute of Central South University Shenzhen 518057China

Vertically stacked transition metal dichalcogenide(TMD)heterostructures provide an opportunity to explore optoelectronic properties within the two-dimensional *** such structures,spatially indirect interlayer excitons(IXs)can be generated in adjacent layers because of strong Coulomb ***,due to the complexity of the multilayered heterostructure(HS),the capture and study of the IXs in trilayer type-Ⅱ HSs have so far remained ***,we present the observation of the IXs in trilayer type-Ⅱ staggered band alignment of MoS_(2)/MoSe_(2)/WSe_(2) van der Waals(vdW)HSs by photoluminescence(PL)*** central energy of IX is 1.33 eV,and the energy difference between the extracted double peaks is 23 *** confirmed the origin of IX through PL properties and calculations by the density functional theory,we also studied the dependence of the IX emission peak on laser power and ***,the polarization-resolved PL spectra of HS were also investigated,and the maximum polarizability of the emission peak of WSe_(2) reached 11.40%at 6 *** findings offer opportunities for the study of new physical properties of excitons in TMD HSs and therefore are valuable for exploring the potential applications of TMDs in optoelectronic devices.

关键词： transition metal dichalcogenides interlayer exciton type-II band alignment trilayer heterostructure

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A short review on diffusion coefficients in magnesium alloys and related applications

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Journal of Magnesium and Alloys 2022年第12期10卷 3289-3305页

作者： Hui Shi Yuanding Huang Qun Luo Sarkis Gavras Regine Willumeit-Römer Norbert Hort Institute of Metallic Biomaterials Helmholtz-Zentrum HereonMax-Planck-Str.1Geesthacht 21502Germany State Key Laboratory of Advanced Special Steels and Shanghai Key Laboratory of Advanced Ferrometallurgy School of Materials Science and EngineeringShanghai UniversityShanghai 200444China Institute of Product and Process Innovation Leuphana University LüneburgUniversitätsallee 1Lüneburg D-21335Germany

To have a better understand on the change of microstructure via kinetics, the diffusion behavior of Mg alloys is of special interest to researchers. Meanwhile, diffusion coefficients of Mg based alloys can explain and represent their diffusion behavior well. The evolution of experimental and calculated methods for detecting and extracting diffusion coefficients was discussed briefly. The reasonable diffusion data, especially self-diffusion coefficients, impurity diffusion coefficients and inter-diffusion coefficients of Mg alloys, were reviewed in detail serving to design the Mg alloys with higher accuracy. Then the practical applications of diffusion coefficients of Mg alloys were summarized,including diffusional mobility establishing, precipitation simulation and mechanical properties prediction.

关键词： Magnesium alloys Diffusion coefficients Atomic mobility Precipitation Mechanical properties

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Novel Multimode process Soft Sensing Methods Based on the Dynamic Mixture Variational Autoencoder Regression Model 11

Novel Multimode Process Soft Sensing Methods Based on the Dy...

引用

11th IEEE Data Driven Control and Learning Systems Conference, DDCLS 2022

作者： Cui, Linlin Yao, Le Ge, Zhiqiang Song, Zhihuan Institute of Industrial Process Control College of Control Science and Engineering Zhejiang University State Key Laboratory of Industrial Control Technology Hangzhou310027 China

ISBN: (数字)9781665496759

ISBN: (纸本)9781665496759

Modern industrial processes with increasing complexity not only contain nonlinear and multi-mode characteristics, but also are commonly the dynamic processes, which brought challenging problems to soft sensor modeling. In order to solve these problems, a dynamic mixture variational autoencoder regression (DMVAER) model is proposed for the nonlinear multi-mode modeling, which is suitable for industrial process quality prediction with multiple complex process characteristics. Furthermore, in order to deal with the problem of semi-supervised data with a large number of unlabeled samples, a semi-supervised dynamic mixture variational autoencoder regression (ssDMVAER) model is proposed, and the corresponding semi-supervised data sequence division method is adopted to make full use of the information in both labeled data and unlabeled data. Finally, in order to verify the feasibility and effectiveness of the proposed methods, the two models are applied to an actual industrial process of methanation furnace. The results show that the proposed methods have superior soft sensing performance than existing methods. © 2022 IEEE.

关键词： Mixtures

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Toward the rational design for low-temperature hydrogenation of silicon tetrachloride: Mechanism and data-driven interpretable descriptor

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Chinese Journal of Chemical engineering 2025年第3期 172-184页

作者： Zhe Ding Li Guo Fang Bai Chao Hua Ping Lu Jinyi Chen Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences School of Chemical Engineering University of Chinese Academy of Sciences Hubei Three Gorges Laboratory State Key Laboratory of Petroleum Molecular & Process Engineering

Low-temperature hydrogenation of silicon tetrachloride（STC） is an essential step in polysilicon *** addition of CuCl to silicon powder is currently a commonly used catalytic method and the silicon powder acts as both a reactant and a ***,the reaction mechanism and the structure-activity relationship of this process have not been fully *** this work,a comprehensive study of the reaction mechanism in the presence of Si and Cu3Si was carried out using density functional theory（DFT） combined with experiments,*** results indicated that the ratedetermining step（RDS） in the presence of Si is the phase transition of Si atom,meanwhile,the RDS in the presence of Cu3Si is the TCS-generation *** activation barrier of the latter is smaller,highlighting that the interaction of Si with the bulk phase is the pivotal factor influencing the catalytic *** feasibility of transition metal doping to facilitate this step was further *** Si disengage energy（Ed） was used as a quantitative parameter to assess the catalytic activity of the catalysts,and the optimal descriptor was determined through interpretable machine *** was demonstrated that d-band center and electron transfer play a crucial role in regulating the level of *** work reveals the mechanism and structure-activity relationship for the low-temperature hydrogenation reaction of STC,and provides a basis for the rational design of catalysts.

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