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Science China Chemistry 2025年

作者： Xingbin Pan Xiuzheng Deng Jingshan Fan Jiangchuan Liu Changhai Liu Zhongyu Li Qian Liang Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology CNPC-CZU Innovation Alliance School of Petrochemical Engineering Changzhou University School of Materials Science & Engineering Changzhou University

Solar-driven co.co.version into value-added chemical provides an attractive strategy for sustainable development. However,the enhanced co.photoreduction performance with target product selectivity remains a major challenge. Here, we develop a novel strategy involving Cu2O nanoparticles in situ grown on the surface of ZIF-67-derived co.C-N nanocages （CC） to create abundant active sites and appropriate heterointerfaces. A remarkable co.selectivity of 95.7%with a yield of 117.39μmol g-1h-1and an apparent quantum efficiency as high as 1.88%at 420 nm was obtained over CC-60 catalyst in pure water, which was 87.6times higher than that of pure Cu2O. Theoretical calculations and experiments indicated that co.C-N nanocages as charge mediator not only rapidly trap photogenerated electrons to promote charge separation efficiency, but also regulate the d-band center of Cu atoms to move to the Fermi energy level, thereby optimizing the reaction kinetics to facilitate the highly selective co.version of the key intermediate *co.desorption to co.

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Mode switching torque distribution strategy of timely four-wheel driven high-gap plant protection machine

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International Journal of agricultural and Biological Engineering 2024年第4期17卷 176-184页

作者： Haijun Zhang Mingwei Guan Guojun Ji Ghulam Hussain Maohua Xiao Yejun Zhu co.lege of Engineering Nanjing Agricultural UniversityNanjing 210031China essen agricultural machinery changzhou co. Ltd.Changzhou 213000China Faculty of Mechanical Engineering Ghulam Ishaq Khan Institute of Engineering Sciences&TechnologyTopi 23460Pakistan

The high-gap plant protection machine is taken in this paper as the research object to ensure the good driving power and safety of the high-gap plant protection machine,and the co.trol strategy of inter-shaft torque distribution is established under different working co.ditions to improve vehicle power and lateral *** anticipated demand torque is initially determined based on the structural characteristics and operational principles of the plant protection ***,a hierarchical co.trol framework is devised by inco.porating a formulated switching co.trol ***,a simulation model for torque distribution co.trol strategy between shafts is developed on the Matlab/Simulink platform,followed by simulation and experimental *** results are presented as follows:the inter-shaft torque distribution strategy established in this paper increases the average longitudinal acceleration by 0.13 m/s^(2) and 0.14 m/s^(2) under the co.trol of low and high to low adhesion road surfaces,*** the co.trol of the single-line shifting co.dition,the yaw velocity can successfully follow the expected value with a maximum value of 0.61 rad/*** side deflection angle of the center of mass does not exceed 2.8°,which can follow the ideal trajectory and improve power and safety.

关键词： plant protection robot torque distribution mode switching

Potential dependence in electrocatalysis: a theoretical perspective

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Science China Chemistry 2025年第1期68卷 21-25页

作者： Leyu Liu Zhaoming Xia Zeyu Wang Yinjuan Chen Hai Xiao Department of Chemistry Tsinghua University Fundamental Science Center of Rare Earths Ganjiang Innovation Academy Chinese Academy of Sciences Key Laboratory of Advanced Catalytic Materials and Technology Advanced Catalysis and Green Manufacturing Collaborative Innovation Center Changzhou University

Electrocatalysis is a key technology for the new energy era and sustainable development, serving as the interface for interco.version of electrical and chemical energies, which spans a wide spectrum of applications in sustainable energy and environmental engineering. Electrocatalytic reactions including electrochemical co.reduction reaction （eco.RR）, hydrogen evolution reaction （HER）, and oxygen evolution/reduction reactions （OER/ORR）, hold essential promise for renewable energy technologies as well as co.plement the biogeochemical carbon and oxygen cycles.

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Nonylphenol photodegradation by novel ternary MIL-100(Fe)/ZnFe_(2)O_(4)/PCN co.posite under visible light irradiation via double charge transfer process

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Journal of Environmental Sciences 2022年第1期34卷 93-103页

作者： Kailin Xu Li Jiao Chuqiao Wang Yiming Bu Yuling Tang Liwei Qiu Qiuya Zhang Liping Wang School of Environmental and Safety Engineering Changzhou UniversityChangzhou 213164China changzhou Cheff Environmental Protection Technology co. Ltd.Changzhou 213164China

Nonylphenol(NP)residues,as a typical endocrine disrupting chemical(EDC),frequently exist in sewage,surface water,groundwater and even drinking water,which poses a serious threat to human health due to its *** order to remove NP,a series of MIL-100(Fe)/Zn Fe_(2)O_(4)/flake-like porous carbon nitride(MIL/ZC)was synthesized through in-situ synthesis at room *** performance of ternary MIL/ZC is used to degrade NP under visible light *** results show that 30MIL/ZC2(20 wt.%Zn Fe_(2)O_(4))ternary co.posite had the best photocatalytic activity(99.84%)when the dosage was 30 *** mechanism analysis shows that the excellent photocatalytic activity of 30MIL/ZC2co.ld be ascribed to the double charge transfer process between flake-like porous carbon nitride(PCN)and other catalysts in the ternary heterojunction,and the separation of photogenerated electron-hole pairs was more *** addition,the 30MIL/ZC2 also showed high stability after five cycles of the photodegradation ***,the active substance(·O_(2)^(-))was co.sidered to be the main active substance in the NP degradation *** on the research results,the possible photocatalytic reaction mechanism of 30MIL/ZC2ternary co.posite was proposed and discussed in detail.

关键词： MIL-100(Fe)/Zn Fe_(2)o_(4)/PCN Nonylphenol Double charge transfer process Visible light irradiation Photocatalytic

Effects of ferrosilico. alloy,Si co.tent of steel,and slag basicity on co.positions of inclusions during ladle furnace refining of Al-killed steel

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Journal of Iron and Steel Research International 2020年第9期27卷 1011-1017页

作者： Jian-fei Xu Kun-peng Wang Ying Wang Zhi-dong Qu Xing-kuang Tu Zenith Steel Group co. Ltd.Changzhou 213000JiangsuChina

To obtain solid Al2O3 or MgO·Al2O3 inclusions in ladle furnace(LF)refining process and achieve ultra-low total oxygen co.tent in steel through subsequent Ruhrstahl Heraeus degassing,the effects of ferrosilico. alloy,Si co.tent of steel,and slag basicity on the co.positions of inclusions during LF refining were investigated in Al-killed ***2O3 inclusions co.ld be transformed into CaO-Al2O3-MgO-CaS inclusions after adding ferrosilico. alloy in the LF refining process as this alloy co.tains some CaSi alloy *** addition of all ferrosilico. alloys required for the steel in the tapping process co.ld eliminate the influence of Ca in ferrosilico. alloy on the co.positions of *** in liquid steel had a significant influence on the co.positions of inclusions during LF refining when CaO-Al2O3-SiO2-MgO slag with high basicity of 7.0 was *** was because[Ca]produced by the reaction of CaO and[Al]co.ld be co.sumed more readily by SiO2 in Si-free steel than in Si-co.taining steel,which was co.firmed by the difference of total calcium co.tent between Si-free and Si-co.taining *** a result,Al2O3 and MgO·Al2O3 inclusions were retained in Si-free steel,whereas calcium aluminate inclusions were found in Si-co.taining *** CaO-Al2O3-SiO2-MgO slag with low basicity of 2.8,Al2O3 and MgO·Al2O3 inclusions were obtained after LF refining in Si-co.taining steel when all ferrosilico. alloys required for the steel were added in the tapping *** was because the reaction of CaO and[Al]was weak,and residual[Ca]in the steel co.ld be rapidly co.sumed by SiO2 in low-basicity slag owing to the low activity of CaO and high activity of SiO2,leading to a low total calcium co.tent of 0.0003%in Si-co.taining steel.

关键词： Inclusion Ferrosilico. alloy Si co.tent Basicity LF refining

Effect of Curing Temperature on Tunnel Fire Insulation of Aerogel Cement Paste co.tings

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Journal of Wuhan University of Technology(Materials Science) 2021年第1期36卷 93-102页

作者： WANG Xinjie XU Donghang ZHU Pinghua CHEN Chunhong QIAN Zhongqiu Department of Civil Engineering Changzhou UniversityChangzhou 213164China Architectural Research Institute Group co. Ltd.Changzhou 213164China

To further strengthen the protective effect of aerogel cement paste (ACP) co.ting on self-co.pacting co.crete (SCC) in tunnel fire under the optimal mix proportion,the effect of curing temperature (from 5 to 80 ℃,based on site co.struction curing temperature and surrounding rock temperature) on fire insulation of ACP was *** mechanical properties,thermal co.ductivity and porosity of ACP were *** microstructure of ACP was characterized by means of SEM,XRD and TG/*** results reveal that 50 ℃ is the optimal curing temperature for ACP with good mechanical properties and fire *** high curing temperature can facilitate hydration and pozzolanic reactions,co.tributing to the generation of more stable substances (such as C-S-H gels,tobermorite and thenardite,etc).ACP under excessive low curing temperature brings inhomogeneous microstructure with co.rse pores,leading to producing wider and longer microcracks when it is exposed to tunnel *** microcracks make the heat co.vection and thermal radiation more significant and thus accelerate the damage of ACP under *** case of the less than 7% difference of thermal co.ductivity,dense microstructure and stable substances are more co.ducive to strengthening fire insulation of *** practical engineering applications,the thickness of protective layer of ACP can be further optimized when ACP is cured under about 50 ℃.

关键词： aerogel cement paste curing temperature tunnel fire insulation microstructure stable hydration products

Design and experiment of nail tooth picking up device for strip type residual film recycling and baling machine

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International Journal of agricultural and Biological Engineering 2023年第6期16卷 85-96页

作者： Deli Jiang Limin Yan Xuegeng Chen Yisong Mo Jiacheng Yang co.lege of Mechanical and Electrical Engineering Shihezi UniversityShihezi 832000XinjiangChina Key Laboratory of Northwest agricultural Equipment Ministry of Agriculture and Rural AffairsShihezi 832000XinjiangChina changzhou Han-Sun machinery co. Ltd.Changzhou 213034JiangsuChina

In order to solve the problem of residual film pollution caused by large area of co.ton mulched planting in Xinjiang,a strip type residual film recycling and baling machine was designed,which can co.plete mulching film picking up,impurities separation,baling and other *** picking up device,as the key part of residual film recycling machine,was designed and *** kinematics of the pick-up nail tooth was analyzed,and its motion equation,motion trajectory and the co.ditions for co.pleting the film pick-up were *** the key parameters were determined by analyzing the co.ditions of no missing picking and the stress of the residual *** to the Box-Benhnken test design principle,field experiments were carried out with the forward speed of machine,the pickup speed ratio and the number of auxiliary film removing mechanisms as the key experimental factors,and the residual film pickup rate,the co.ton stalk co.tent and the residual film winding rate as the operation performance indexes of the picking up *** mathematical models between the experimental factors and indexes were established,and the effect of each factor was *** multi-objective parameter optimization and field experiment,the optimal co.bination of operation parameters was obtained as follows:the forward speed of machine of 1.67 m/s,the pickup speed ratio of 1.13,and the number of auxiliary film removing mechanisms of *** this parameter co.bination,the pickup rate of residual film was 88.9%,the co.ton stalk co.tent in recycled residual film of 3.9%,and the residual film winding rate of 1.5%.The absolute error with the theoretical value was less than 0.6%.The research results show that the picking up device has stable operation performance and good residual film recycling effect,which meets the design and practical operation requirements.

关键词： strip mulching film recycle pick-up nail tooth motion analysis parameter optimization film removing mechanism

Synthesis,Characterization and Protonation Study of Novel Poly(thioether imide)s based on Aromatic Heterocyclic Diimide

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Journal of Wuhan University of Technology(Materials Science) 2013年第2期28卷 269-273页

作者：赵晓燕 WANG Chenyi ZHAO Xiaohua SUN Zheng co.lege of Petrochemical Engineering Changzhou University changzhou Expansion New Stuff Technology co. Ltd School of Materials Science and Engineering Changzhou University

Novel poly（thioether imide）s were synthesized by 2,5-dimercapto-l,3,4-thiadiazole, and aromatic heterocyclic chlorodiimids through nucleophilic!substitution reaction as alkali catalysts were presented. The poly（thioether imide）s exhibited good thermal property. The glass transition temperatures of polymers were around 373 ℃, and 10% weight loss temperatures were in the range of 450-500 ℃ in nitrogen/air atmosphere. Meanwhile, the chloroform dilute solutions of these polYmers co.ld show strong UV-vis absorption peaks at about 289 nm. After being protonated by inorganic acids （HC1）, the new shoulder absorption peaks were observed at 350 nm. The PL absorption bands of polymer solutions were in the region of 350-550 nm, which showed the green-yellow fluorescence.

关键词： aromatic heterocyclic chlorodiimide thermal stability fluorescence protonation

Mechanism of a dual-phase Ti-Nb alloy exhibiting near-linear elastic deformation

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Rare Metals 2024年第5期43卷 2282-2289页

作者： Yan Guo Wang Ding Wen Ma Shun Guo Hao-Dong Meng Nian-Yao Xu School of Automotive Engineering Changzhou Institute of TechnologyChangzhou 213032China School of Materials Science and Engineering Jiangsu UniversityZhenjiang 212013China Youke Publishing co. LtdChina Grinm Group Co.LtdBeijing 100088China

In this work,the underlying mechanism responsible for the near-linear elastic deformation behavior of a dual-phase Ti-Nb alloy co.sisting of β and α'' phase with large reco.erable strain was systematically *** on in situ synchrotron X-ray diffraction(SXRD)analyses,it was found that besides intrinsic elastic deformation,a slight reversible β-α'' stress-induced martensitic(SIM)transformation,which proceeded in a co.secutive mode under the retarding effect of micro-defects,took place during the near-linear elastic *** unloading,a small amount of residual macrosco.ic strain remained in the specimen due to the inco.plete reverse α''→β transformation on *** high near-linear elastic deformability of the co.d drawing(CD)Ti-Nb alloy has been revealed to be attributed to the co.pling actions of intrinsic elasticity as well as the co.secutive and reversible β-α'' SIM *** research may co.tribute to a new avenue for the design and development of novel dual-phase Ti-based alloys with desirable elastic deformability.

关键词： Titanium alloys Dual-phase Near-linear elastic deformation Martensitictransformation

Bionics-Inspired Structure Boosts Drag and Noise Reduction of Rotating machinery

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Journal of Bionic Engineering 2023年第6期20卷 2797-2813页

作者： Shengnan Tang Yong Zhu Shouqi Yuan Institute of Advanced Manufacturing and Modern Equipment Technology Jiangsu UniversityZhenjiang212013China International Shipping Research Institute GongQing Institute of Science and TechnologyJiujiang332020China National Research Center of Pumps Jiangsu UniversityZhenjiang212013JiangsuChina Saurer(changzhou)Textile machinery co. LtdChangzhou213200China Leo Group co. LtdWenling317500China Wenling Fluid machinery Technology Institute of Jiangsu University Wenling317525China

As a global co.cern,environmental protection and energy co.servation have attracted significant *** to the large carbon emission of electricity,promoting green and low-carbon transformation of the power industry via the synergistic development of clean energy sources is *** machinery plays a crucial role in pumped storage,hydropower generation,and nuclear power *** by bionics,non-smooth features of creatures in nature have been introduced into the structure design of efficient rotating ***,the co.cept and classification of bionics are ***,the representative applications of non-smooth surface bionic structures in rotating machineries are systematically and co.prehensively reviewed,such as groove structure,pit structure,and other non-smooth ***,co.clusions are drawn and future directions are *** effective design of a bionic structure co.tributes toward noise reduction,drag reduction and efficiency improvement of rotating *** and eco.ogical rotating machinery will remarkably reduce energy co.sumption and co.tribute to the realization of the“double carbon”goal.

关键词： Bionics Rotating machinery Non-smooth surface Pit structure Groove structure