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Substituent Modulated Electronic Properties of Cu(Ⅰ)Active Site in Metal-Organic Halides for Boosting Hydrogen Evolution Reaction

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Chinese Journal of Chemistry 2024年第22期42卷 2845-2852页

作者： Jing Wu Pingping Wang Yuzhe Fu Yi Shen Bin Wang Feng Hu Mengkai Zuo Wei Huang Dayu Wu Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology Advanced Catalysis&Green Manufacturing Collaborative Innovation CenterSchoolof Petrochemical EngineeringChangzhou UniversityChangzhouJiangsu 213164China

Development of heterogeneous molecular photocatalysts for promising light-driven hydrogen evolution reaction(HER)is highly demanding but still ***,we report the blue-greenish emitting dinuclear metal–organic halides as photocatalyst by incorporating site-specific single copper(Ⅰ)atoms that exhibit an efficient carbon-negative H_(2) ***,the electronic properties,including the spin and charge density of central Cu(Ⅰ)active site,can be triggered by substituent modulation in metal–organic halides,which greatly affect the exciton dissociation kinetics and thus the HER *** optimized spin density in these heterogeneous photocatalysts drastically boosts the hydrogen production rate from 1250 to 3130μmol·g^(–1)·h^(–1).Our molecular strategy provides a platform that rationally facilitates electronic modulation of copper(Ⅰ)atoms,tunes the macroscopic optoelectronic properties of photocatalysts and boosts carbon-negative HER activity,extending the boundaries of conventional molecular-based photocatalysts.

关键词： Metal-organic halides Photocatalysis Hydrogen evolution Microenvironment modulation Hybrid copper(Ⅰ)halids Ligand effects Substituent effects Spin density

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Artificial stepwise light harvesting system in water constructed by quadruple hydrogen bonding supramolecular polymeric nanoparticles

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Chinese Chemical Letters 2024年第2期35卷 370-373页

作者： Tangxin Xiao Xiuxiu Li Liangliang Zhang Kai Diao Zheng-Yi Li Xiao-Qiang Sun Leyong Wang Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology School of Petrochemical EngineeringChangzhou UniversityChangzhou 213164China Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Stepwise energy transfer is ubiquitous in natural photosynthesis,which greatly promotes the widespread use of solar ***,we constructed a supramolecular light harvesting system based on sequential energy transfer through the hierarchical self-assembly of M,which contains a cyanostilbene core flanked by two ureidopyrimidinone motifs,endowing itself with both aggregation-induced emission behavior and quadruple hydrogen bonding *** monomer M can self-assemble into hydrogen bonded polymers and then form supramolecular polymeric nanoparticles in water through a mini-emulsion *** nanoparticles were further utilized to encapsulate the relay acceptor ESY and the final acceptor NDI to form a two-step FRET *** fluorescence including a white-light emission was successfully *** work not only shows a desirable way for the fabrication of efficient two-step light harvesting systems,but also shows great potential in tunable photoluminescent nanomaterials.

关键词： Light harvesting system Supramolecular polymer Quadruple hydrogen bonding AIE Self-assembly

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Review on Development of Automatic Docking System for Weapons and Cabins

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Recent Patents on Engineering 2024年第2期18卷 63-87页

作者： Tang, Dedong Cheng, Chao Quan, Qiquan Deng, Zongquan Liu, Hao Key Laboratory of Advanced Manufacturing and Intelligent Technology Ministry of Education Harbin University of Science and Technology Harbin150080 China State Key Laboratory of Robotics and System Harbin Institute of Technology Harbin150001 China

Background: In the manufacturing setup process of weapons, aviation, and aerospace, docking assembly is a key component in determining manufacturing efficiency and quality. The traditional docking method uses manual alignment, which depends on the experience and operation level of the workers, so the docking accuracy is low and the installation speed is slow. In response to this problem, how to achieve automatic docking of weapons and cabins has become a key technology. Objective: The objective of this study is to provide an overview of recent key technologies for automatic docking systems and introduce their respective classification, characteristics, and development. Methods: This paper reviews the patents and products related to the key technologies of automatic docking systems. The structural features, methodological principles, control characteristics and applications of the patents and products are summarized. Results: The key technologies related to different aspects of an automatic docking system are compared and analyzed, and the structural features, and methodological principles are also summarized. The problems of the current key technologies are analyzed, and the current status of research and future directions of the automatic docking system are discussed. Conclusion: According to the key technologies related to different aspects of the automatic docking system, they can be divided into motion mechanism, pose detection technology, and computer control technology. The accuracy, compliance, and flexibility of the automatic docking system can be improved by choosing the proper key technology. Further improvements are needed in terms of fast performance, robustness and authenticity, and more patents on key technologies of automatic docking systems should be invented. © 2024 Bentham Science Publishers.

关键词： Patents and inventions

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Economic and entropy production evaluation of extractive distillation and solvent-assisted pressure-swing distillation by multi-objective optimization

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Chinese Journal of Chemical Engineering 2023年第11期63卷 246-259页

作者： Yao Wang Qing Ye Jinlong Li Qingqing Rui Azhi Yu Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology School of Petrochemical EngineeringChangzhou UniversityChangzhou 213164China

Extractive distillation(ED)and solvent-assisted pressure-swing distillation(SA-PSD)are both special distillation processes that perform good at separating pressure-insensitive ***,few reported studies have compared the performance of the two *** this paper,ED processes with N-methylpyrrolidone(NMP)and dimethlac-etamide(DMCA)as entrainer,SA-PSD process with isopropyl-alcohol(IPA)as solvent and SA-PSD process with partial heat integration(PHI-PSD)are proposed to achieve high purity separation of a mixture of cyclohexane/2-butanol *** optimal operating conditions of the processes are obtained after optimizing with NSGA-Ⅱ algorithm when total annual cost(TAC)and the entropy production of process are set as *** optimal results show that the optimal PHI-PSD process has lower TAC by 28.7% and the lower entropy production by 39.5% than the optimal SA-PSD process while the ED process with NMP as entrainer has lower TAC by 50.9% and the lower entropy production by 56.1% than the optimal SA-PSD *** optimal results show that the ED process with NMP as entrainer has the best economic and thermodynamic efficiency among the four proposed processes in this paper.

关键词： Extractive distillation Solvent-assisted pressure-swing distillation Entropy production NSGA-Ⅱalgorithm Computer simulation

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Reducing surficial and interfacial defects by thiocyanate ionic liquid additive and ammonium formate passivator for efficient and stable perovskite solar cells

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Nano Research 2023年第5期16卷 6849-6858页

作者： Mengfei Zhu Yuren Xia Lina Qin Kaiqiang Zhang Junchuan Liang Cheng Zhao Daocheng Hong Minghang Jiang Xinmei Song Jie Wei Pengbo Zhang Yuxi Tian Zhong Jin State Key Laboratory of Coordination Chemistry MOE Key Laboratory of Mesoscopic ChemistryMOE Key Laboratory of High Performance Polymer Materials and TechnologyJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjingJiangsu 210023China

Organic–inorganic metal halide perovskites have attained extensive attention owing to their outstanding photovoltaic performances,but the existence of numerous defects in crystalline perovskites is still a serious constraint for the further development of perovskite solar cells(PSCs).In particular,the rapid crystallization guided by anti-solvents leads to plenty of surficial and interfacial defects in perovskite ***,we report the adoption of a pseudo-halide anion based ionic liquid additive,1-butyl-3-methylimidazolium thiocyanate(BMIMSCN)for growing ternary cation(CsFAMA,where FA=formamidinium and MA=methylammonium)perovskites with large-scale crystal grains and strong preferential orientation via the enhanced Ostwald ***,a novel halide-free passivator,benzylammonium formate(BAFa),was employed as a buffering layer on the perovskite films to suppress surface-dominated charge *** a result,the cooperative effects of BMIMSCN additive and BAFa passivator lead to significant enhancements on fluorescence lifetime(from 79.41 to 201.01 ns),open-circuit voltage(from 1.13 to 1.19 V),photoelectric conversion efficiency(from 18.90%to 22.33%).Moreover,the BMIMSCN/BAFa-CsFAMA PSCs demonstrated greatly improved stability against moisture and *** work suggests a promising strategy to improve the quality of perovskite materials via reducing the surficial and interfacial defects by the synergistic effects of lattice doping and interface engineering.

关键词： organic–inorganic perovskite solar cells pseudo-halide ion liquid additive non-halide ammonium formate passivator crystalline and interface engineering efficiency and stability improvements

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Characteristics of radio-frequency magnetron sputtering with Ag target operated near the electron series resonance oscillation

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Plasma Science and technology 2025年第3期27卷 111-117页

作者： Chao YE School of Physics Science and Technology Jiangsu Key Laboratory of Frontier Material Physics and DevicesSoochow UniversitySuzhou 215006People’s Republic of China Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Soochow UniversitySuzhou 215123People’s Republic of China

The discharge and plasma characteristics of Ag magnetron sputtering discharge operated near the electron series resonance(ESR)oscillation,which was excited using the driving frequency of 27.12 MHz,was *** imaginary part of impedance was found to undergo a transition from capacitive to inductive on varying radio-frequency(RF)power,and the conditions for the ESR excitation were *** current–voltage(I–V)characteristic of discharge showed that the lower discharge voltage with higher current was an important feature of RF magnetron sputtering operated near the ESR oscillation,which was caused by the small impedance Z originated from the mutual compensation between the sheath capacitive reactance and the plasma inductive *** higher electron temperature,ion flux density and ion energy as well as the moderate electron density were *** interaction of higher energy ions on substrate surface improved the crystallographic quality of Ag ***,the 27.12 MHz magnetron sputtering operated near the ESR oscillation has better deposition characteristics than that of commercial 13.56 MHz RF magnetron sputtering.

关键词： electron series resonance magnetron sputtering radio-frequency discharge

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Gliding arc discharge in combination with Cu/Cu_(2)O electrocatalysis for ammonia production

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Plasma Science and technology 2024年第7期26卷 67-73页

作者：刘学张佳伟何弈黄嘉敏马晓萍张潇漫卢曼婷辛煜 Jiangsu Key Laboratory of Thin Films School of Physical Science and TechnologySoochow UniversitySuzhou 215006People’s Republic of China Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Soochow UniversitySuzhou 215123People’s Republic of China

Highly efficient and green ammonia production is an important demand for modern *** this study,a two-step ammonia production method is developed using a gliding arc discharge in combination with Cu/Cu_(2)O *** this method,NO_(x)is provided by the gliding arc discharge and then electrolyzed by Cu/Cu_(2)O after alkaline *** electrical characteristics,the optical characteristics and the NO_(x)production are investigated in discharges at different input voltage and the gas *** dependence of ammonia production through Cu/Cu_(2)O electrocatalysis on pH value and reduction potential are determined by colorimetric *** our study,two discharge modes are *** high input voltage and low gas flow,the discharge is operated with a stable plasma channel which is called the steady arc gliding discharge mode(A-G mode).As lowering input voltage and raising gas flow,the plasma channel is destroyed and high frequency breakdown occurs instead,which is known as the breakdown gliding discharge mode(B-G mode).The optimal NO_(x)production of 7.34 mmol h^(-1)is obtained in the transition stage of the two discharge *** ammonia yield reaches0.402 mmol h^(-1)cm^(-2)at pH value of 12.7 and reduction potential of-1.0 V versus reversible hydrogen electrode(RHE).

关键词： gliding arc discharge nitrogen fixation Cu/Cu_(2)O catalyst electrocatalytic reduction of nitrite

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Process planning and contour-based error compensation for precision grinding of miniature scalpels

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先进制造进展（英文版） 2024年第1期12卷 108-123页

作者： Cheng Fan Cao-Yang Xue Jun Zhao Wei Jiang Wen-Ge Han Lei Zhang Li-Ning Sun Jiangsu Provincial Key Laboratory of Advanced Robotics School of Mechanical and Electrical EngineeringSoochow UniversitySuzhou 215021JiangsuPeople's Republic of China Key Laboratory of Fluid Power and Mechatronic Systems School of Mechanical and Electrical EngineeringZhejiang UniversityHangzhou 310027People's Republic of China State Key Laboratory of Intelligent Equipment and Manufacturing School of Mechanical EngineeringZhejiang University of TechnologyHangzhou 310023People's Republic of China

Miniature scalpels are mainly used in microsur-geries such as ophthalmic and cardiovascular *** size of a miniature scalpel is only a few millimeters,and the precision of the blade shape is high,which makes pro-duction of miniature scalpels extremely *** study proposes a new sharpening process for grinding miniature scalpels on a four-axis machine tool.A post-processing algo-rithm for a four-axis grinding machine based on a kinemat-ics model is *** then propose a corresponding parameter calibration method for the parameters used in the kinematics *** of possible errors in the param-eter calibration,a contour-based error compensation method is proposed for accurate adjustments to the edge shape fol-lowing *** can solve the problem of large devia-tions between the actual edge shape after grinding and the ideal edge *** effectiveness of the proposed process planning and error compensation method is verified experi-mentally,and the grinding process parameters of the minia-ture scalpel are optimized to improve its surface processing *** sharpness of the optimized miniature scalpel is less than 0.75 N,and the blade shape is symmetrical,which meets the technical requirements of miniature scalpels.

关键词： Miniature scalpel Sharpening Kinematics Error compensation Grinding

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Design of Automatic Loading and Unloading Manipulator for CNC Gear Milling Machine

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Recent Patents on Mechanical Engineering 2023年第5期16卷 335-344页

作者： Chen, Zhong Gao, Xin Yang, Hu Song, Zuxiao Wang, Yongfang Jiangsu Key Laboratory of Advanced Manufacturing Technology Huaiyin Institute of Technology 1 Meicheng Rd Jiangsu Huaian223003 China

Background: At present, due to the widespread use of robotic arms for the automatic loading and unloading of CNC gear milling machines, there has been an increase in patents related to robotic arms. However, these robotic arms have issues of low efficiency and large space occupation. To solve these problems, a CNC gear milling machine with an automatic loading and unloading manipulator device needs to be designed. Methods: This paper first designs the overall scheme of the automatic loading and unloading manipulator, and then uses Solidworks to establish a three-dimensional model. Finite element analysis software is used to analyze and simulate the deformation, stress distribution, and service life of the key components in the overall device. Finally, a prototype of the robotic arm is created based on the simulation optimization results. Results: This paper designs a new type of automatic loading and unloading manipulator device for CNC gear milling machines, which is different from existing patents in that all its components are installed inside the machine tool protective cover. In production experiments, the operation was found to be stable and reliable, and the loading and unloading process was completed at a speed of 11s/time, consistently exceeding the manual maximum speed of 19s/time. The results indicate that the proposed clamp storage system and core rod perforation feeding method are effective. Conclusion: The new design solves the problems of low efficiency and large space occupation in existing robotic arm patents. © 2023 Bentham Science Publishers.

关键词： Manipulators

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Cubic hollow porous carbon with defective-edge Fe-N_(4) single-atom sites for high-performance Zn-air batteries

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Journal of Materials Science & technology 2024年第14期181卷 82-90页

作者： Shilong Zhou Chao Chen Jiawei Xia Le Li Xingyue Qian Fengxiang Yin Guohong Dai Guangyu He Qun Chen Haiqun Chen Key Laboratory of Advanced Catalytic Materials and Technology Advanced Catalysis and Green Manufacturing Collaborative Innovation CenterChangzhou UniversityChangzhou 213164China Department of Chemistry and Chemical Engineering Jiangsu University of TechnologyChangzhou 213001China

Regulating the local coordination of Fe active center can further improve the oxygen reduction reaction(ORR)performance of Fe-N-C catalyst to meet the practical application requirements of zinc-air batteries(ZABs).Herein,carbon vacancies modified hollow porous catalysts(C-FeZ8@PDA-950)are constructed by microenvironment modulation,achieving the efficient utilization of active sites and optimization of elec-tronic *** functional theory(DFT)calculations confirm that the defective-edge Fe-N_(4) sites can weaken the adsorption free energy of OH^(∗),and hinder the dissolution of Fe center,significantly accel-erating the ORR process for *** rechargeable liquid ZABs equipped with C-FeZ8@PDA-950 display high specific capacity(819.95 mAh g Zn^(−1))and excellent long-cycling life(over 500 h).Furthermore,the relevant flexible all-solid-state ZABs also display outstanding folding performance under various bending *** work will provide insights into optimizing the electronic structure to improve electrocatalytic performance in the energy conversion and storage area.

关键词： Hollow porous catalyst ORR Defective-edge Fe-N_(4) sites Zn-air battery DFT calculations

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