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

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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Tailoring Electrical Conductivity in Polymer-Derived Zr-Doped Sic Based Ceramics Through Structural Control for High Performance Li-Ion Battery Anodes

SSRN

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SSRN 2024年

作者： Jiang, Jiaojiao Ying, Siwei Wu, Chunxiao Yang, Chao State Key Laboratory of Biochemical Engineering Key Laboratory of Biopharmaceutical Preparation and Delivery Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100190 China College of Chemistry and Chemical Engineering Xiamen University Xiamen361000 China

Polymer-derived ceramics have emerged as a highly promising material class for electrochemical energy storage applications, offering meticulous control over nanoscale properties. Herein, a novel Zr-doped SiC based ceramic is synthesized from vinyl and zirconium-modified polycarbosilane precursors. This study elucidates that the complex structural evolution, involving the transformation of amorphous ZrO2 into distinct phases such as m-ZrO2, t-ZrO2, and ZrC, not only alters the spatial distribution of the free carbon ribbons but also exerts a significant influence on their structural morphology and equilibrium. Thereby reconfiguring the conductive network within the material, which resulting to an extraordinary pinpoint electrical conductivity of 0.28 S/cm and a minimal forbidden bandwidth annealled at 1400°C. Employing density functional theory, we unveil a remarkable phenomenon where the energy bands of the carbon ribbon potentially merge with those of the native cell, resulting in a narrowed energy bandgap and the emergence of conductive behavior within the lattice. The fabricated Li-ion battery demonstrates exceptional electrochemical performance, showcasing a competitive specific capacity of 383.5 mAh/g with commercial graphite material. And maintaining outstanding coulombic efficiency (99.5%) over extended cycling, unequivocally underscoring its potential as a stable and efficient anode material for cutting-edge energy storage applications. © 2024, The Authors. All rights reserved.

关键词： Lithium-ion batteries

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Laser-enhanced high-magnification telecentric imaging system for multiphase flow monitoring in membrane fouling

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Chinese Journal of Chemical engineering 2025年 82卷 25-38页

作者： Xu, Haohan Liang, Hu Feng, Xin Zhang, Weipeng Duan, Xiaoxia Chen, Jie Yang, Chao State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China

Membrane fouling is the primary resistance to the continuous production of stirred membrane reactors. This work presents a laser-enhanced high-magnification telecentric imaging system (LEHTIS), which uses a high-magnification telecentric lens and laser-enhanced illumination to invasively capture the motion of particles on the membrane surface or near the membrane. The problems of working distance and particle interference in the stirred membrane reactor are solved to achieve the purpose of in-situ monitoring of membrane fouling. This method is suitable for high flow rates, high solid holdup, and small particle size systems, and the dynamic motion and accumulation of particles are preliminarily analyzed. It shows that the accumulation and desorption of particles on the membrane surface are related to the physical properties of the membrane surface. There is an intermittent rotational movement in the flow field near the membrane, and it tends to stabilize over time. The filtration process can be assessed by monitoring changes in the overall velocity and acceleration of particles near the membrane. The analysis of forces acting on individual particles is compared and validated with the force balance model to correct and accurately apply it to stirred membrane reactors. The development of LEHTIS provides an effective tool for in-situ monitoring of membrane fouling and optimizing the stirred membrane reactors for industrial applications. © 2025 The Chemical Industry and engineering Society of China, and Chemical Industry Press Co., Ltd.

关键词： Chemical industry

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engineering single atomic ruthenium on defective nickel vanadium layered double hydroxide for highly efficient hydrogen evolution

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Nano Research 2023年第4期16卷 4612-4619页

作者： Xiaoyu Chen Jiawei Wan Meng Zheng Jin Wang Qinghua Zhang Lin Gu Lirong Zheng Xianzhu Fu Ranbo Yu College of Materials Science and Engineering Shenzhen UniversityShenzhen 518071China College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhen 518060China Department of Physical Chemistry School of Metallurgical and Ecological EngineeringUniversity of Science and Technology Beijing InstitutionBeijing 100083China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Beijing National Center for Electron Microscopy and Laboratory of Advanced Materials Department of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Key Laboratory of Advanced Material Processing&Mold Ministry of EducationZhengzhou UniversityZhengzhou 450002China

Fabricating single-atom catalysts(SACs)with high catalytic activity as well as great stability is a big ***,we propose a precise synthesis strategy to stabilize single atomic ruthenium through regulating vanadium defects of nickel vanadium layered double hydroxides(NiV-LDH)ultrathin nanoribbons ***,the isolated atomically Ru doped NiV-LDH ultrathin nanoribbons(NiVRu-R)were successfully fabricated with a super-high Ru load of 12.8 wt.%.X-ray absorption spectrum(XAS)characterization further confirmed atomic dispersion of *** catalysts for electrocatalytic hydrogen evolution reaction(HER)in alkaline media,the NiVRu-R demonstrated superior catalytic properties to the commercial Pt/***,it maintained exceptional stability even after 5,000 cyclic voltammetry ***-situ XAS and density functional theory(DFT)calculations prove that the Ru atomic sites are stabilized on supports through forming the Ru-O-V structure,which also help promote the catalytic properties through reducing the energy barrier on atomic Ru catalytic sites.

关键词： hydrogen evolution reaction layered double hydroxide ruthenium atomic site ultrathin nanoribbons

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Swelling and dissolution behaviors of cellulose in phosphate-based ionic liquids-H2O binary systems: In-situ observation and molecular dynamics simulation

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Journal of Molecular Liquids 2024年 415卷

作者： Cao, Ruimei Long, Yan Li, Tiancheng Lv, Wanxue Wu, Huizheng Wang, Binqi Song, Yuting Gao, Hongshuai Nie, Yi School of Chemical Engineering Zhengzhou University Zhengzhou450001 China Zhengzhou Institute of Emerging Industrial Technology Longzihu New Energy Laboratory Zhengzhou450046 China Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Mesoscience and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China

Swelling and dissolution of cellulose in ionic liquids (ILs) as the pretreatment processes are key steps for the high-value conversion and utilization of cellulose. However, the molar ratio of H2O to ILs has a significant effect on the swelling and dissolution of cellulose, and its molecular-scale mechanism is still unclear, which limits screening out the suitable ILs and recovery of ILs from coagulation bath in the spinning process. Herein, three phosphate-based ILs were chosen to couple with water as solvents for swelling and dissolution of cellulose by combining in-situ observation and molecular dynamics (MD) simulation. The results show that the redissolution time of swollen cellulose is greatly reduced, especially [Emim]DEP-H2O has the best swelling and dissolution performance for cellulose due to its high β value and low viscosity. Meanwhile, when the molar ratio of IL to H2O was more than 1: -1, the IL-H2O system still has the ability to dissolve cellulose. While with the molar ratio further decreased, cellulose was no longer dissolved and began to swell, and the fiber diameter obtained the maximum swelling rate with 40.1% at a molar ratio of 1:3. Moreover, MD simulation was used to calculate the interaction between IL/water/cellulose, which further illustrated that the combination of IL with water molecular has a significant influence on the behavior of cellulose in IL-H2O systems at the molecular scale. Thus, the potential swelling and dissolution mechanism of cellulose in ILs-H2O binary systems was proposed based on experimental and simulation results. Furthermore, the characterization results of swollen cellulose indicate that the crystal structure and degree of polymerization (DP) were almost unchanged, but the specific surface area and pore size increased significantly, and the thermal stability and heat absorption were decreased, all the results prove that the swelling process increased the accessibility of cellulose and benefited to the subsequent dis

关键词： Spinning (fibers)

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生物启发和生物工程核酸药物载体

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Science China Materials 2024年第8期67卷 2393-2413页

作者：左嘉敏卢治国郭京赵睿琛张田露王朝霞袁云邓健文袁俊亮张欣 State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China Department of Neurology Peking University Sixth HospitalPeking University Institute of Mental HealthBeijing 100191China Department of Neurology Peking University First HospitalBeijing 100034China Beijing Key Laboratory of Neurovascular Disease Discovery Beijing 100034China Key Laboratory of Biopharmaceutical Preparation and Delivery Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China

核酸药物具有直接作用于致病基因的优势,在治疗各种疾病方面具有巨大潜力.然而,由于核酸药物需要克服多重生理障碍才能到达靶点,因此在实际应用中面临诸多困难和挑战.为了提高核酸药物的稳定性和递送效率,研究人员开始利用生物工程化和... 详细信息

核酸药物具有直接作用于致病基因的优势,在治疗各种疾病方面具有巨大潜力.然而,由于核酸药物需要克服多重生理障碍才能到达靶点,因此在实际应用中面临诸多困难和挑战.为了提高核酸药物的稳定性和递送效率,研究人员开始利用生物工程化和生物启发材料所具有的内源性递送生物大分子的能力来递送核酸药物.本文重点介绍核酸药物递送过程中需要克服的生物障碍,以及生物工程和生物启发材料在核酸药物递送中的优势和应用.通过利用这些先进的生物材料,研究人员有望提高核酸药物的疗效,为疾病治疗提供新的解决方案.

关键词：生物工程药物递送生理障碍生物启发致病基因生物大分子工程化疾病治疗

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Continuous generation of lattice oxygen via redox engineering for boosting toluene degradation performances

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Chinese Journal of Chemical engineering 2021年第6期34卷 258-266页

作者： Shiya He Zhimin You Xin Jin Yi Wu Cheng Chen He Zhao Jian Shen Department of Environment and Resources Xiangtan UniversityXiangtan 411105China State Key Laboratory of Heavy Oil Processing College of Chemical EngineeringChina University of PetroleumQingdao 266580China Beijing Engineering Research Center of Process Pollution Control Division of Environment Technology and EngineeringKey Laboratory of Green Process and EngineeringInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China

Excellent performances promoted by lattice oxygen have attracted wide attention for catalytic degradation of volatile organic compounds(VOCs).However,how to control the continuous regeneration of lattice oxygen from the support is seldom *** this study,we selected sepiolite supported manganese-cobalt oxides(Co_(x)Mn_(100-x)O_(y))as model catalysts by tuning Co/(Co+Mn)mass ratio(x=3%,10%,15%,and 20%)to enhance toluene degradation efficiency,owing to lattice oxygen regeneration by redox cycle existing at the interface and Mn species with high valence state,initiated by cobalt catalytic performance under the role of crystal field stability *** results of activity test show that the sepiolite-Co_(15)Mn_(85)O_(y)catalyst exhibit outperformances at 193℃with 10,000 h^(-1)*** addition,the catalyst existed at the bottom of the"volcano"curve correlated T_(50)or T_(90)with Co/(Co+Mn)weight ratio is sepiolite-Co_(15)Mn_(85)O_(y),conforming its *** characterized by investigating active sites structural and electronic properties,the essential of superior catalytic activity is attributed to the grands of lattice oxygen continuous formation resulted from redox engineering based on the high atomic ratio of surface lattice oxygen with continuous refilled from the support and that of Mn^(4+)/Mn^(3+)cycle initiated by cobalt catalytic *** in all,redox engineering,not only promotes grands of active species reversible regeneration,but supplies an alternative catalyst design strategy towards the terrific efficiency-to-cost ratio performance.

关键词： Redox engineering Crystal field stability phase Lattice oxygen Toluene degradation

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Conjugated microporous polymers-scaffolded enzyme cascade systems with enhanced catalytic activity

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Chinese Journal of Catalysis 2024年第8期63卷 213-223页

作者： Zhenhua Wu Jiafu Shi Boyu Zhang Yushuai Jiao Xiangxuan Meng Ziyi Chu Yu Chen Yiran Cheng Zhongyi Jiang School of Environmental Science and Engineering Tianjin UniversityTianjin 300072China Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China College of Chemical Engineering Fuzhou UniversityFuzhou 350108FujianChina Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityFuzhou 350207FujianChina

Enhancing catalytic activity of multi-enzyme in vitro through substrate channeling effect is promis-ing yet ***,conjugated microporous polymers(CMPs)-scaffolded integrated en-zyme cascade systems(I-ECSs)are constructed through co-entrapping glucose oxidase(GOx)and horseradish peroxidase(HRP),in which hydrogen peroxide(H_(2)O_(2)) is the intermediate *** interplay of low-resistance mass transfer pathway and appropriate pore wall-H_(2)O_(2) interactions facilitates the directed transfer of H_(2)O_(2),resulting in 2.4-fold and 5.0-fold elevation in catalytic activ-ity compared to free ECSs and separated ECSs,*** substrate channeling effect could be regulated by altering the mass ratio of GOx to ***,I-ECSs demonstrate excellent stabili-ties in harsh environments and multiple recycling.

关键词： Biocatalysis Immobilization Enzyme cascade system Substrate channeling effect Conjugated microporous polymers

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Size control and electronic manipulation of Ru catalyst over B,N codoped carbon network for high-performance hydrogen evolution reaction

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Nano Research 2023年第5期16卷 6212-6219页

作者： Shuai Xu Mang Niu Guowei Zhao Shujun Ming Xingyun Li Qilong Zhu Liang-Xin Ding Minjun Kim Asma A.Alothman Mohammed Sheikh Saleh Mushab Yusuke Yamauchi Institute of Materials for Energy and Environment Institute of Biochemical EngineeringCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China Hubei Key Laboratory of Processing and Application of Catalytic materials Huanggang Normal UniversityHuanggang 438000China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of Sciences(CAS)Fuzhou 350002China Guangdong Provincial Key Lab of Green Chemical Product Technology School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhou 510640China Australian Institute for Bioengineering and Nanotechnology(AIBN)and School of Chemical Engineering The University of QueenslandBrisbaneQueensland 4072Australia Department of Chemistry College of ScienceKing Saud UniversityRiyadh 11451Saudi Arabia

Exploring highly efficient Pt-free catalysts for hydrogen evolution reaction(HER)is of great importance for hydrogen(H2)***,a novel HER electrocatalyst having abundant ultra-small(2–3 nm)Ru electronically confined by a B,N codoped polar carbon surface(Ru/(B-N)-PC)was *** Ru/(B-N)-PC catalyst exhibits a low overpotential of 15 mV at the current density of 10 mA·cm^(−2),a low Tafel slope of 22.6 mV·dec^(−1),superior durability,which outperforms the benchmark Pt/C *** experimental characterizations and theory calculations suggest that an electron communication established between B,N co-doped carbon surface and ultra-small Ru nanoparticles with electrons transferred from N atoms to Ru and backtransferred from Ru to B atoms,which exerts a moderate electronic modification of ***,in turn,affords a modest H adsorption energy and a lower H2O dissociation barrier,leading to the high-performance hydrogen evolution *** work provides meaningful insight into the size control and electronic modulation of Ru catalyst for intrinsic HER activity improvement.

关键词： hydrogen evolution reaction Ru catalyst carbon support doping

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

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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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