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Carbonation of Dicalcium Silicate Enhanced by Ammonia Bicarbonate and Its Mechanism

Journal of Wuhan University of technology(Materials Science) 2024年第1期39卷 69-74页

作者：周浩刘鹏 WANG Fazhou HU Chuanlin School of Chemistry Chemical Engineering and Life ScienceWuhan University of TechnologyWuhan 430070China State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070China

The strength development law of γ-type dicalcium silicate (γ-C_(2)S) under different carbonation processes was investigated,and the carbonation mechanism of γ-C_(2)S under the action of NH_(4)HCO_(3) was clarified by using a wide range of test methods,including XRD and SEM.A method of saturated NH_(4)HCO_(3) solution as a curing agent was identified to improve the carbonation efficiency and enhance the carbonation degree of γ-C_(2)S,and then a high-strength carbonated specimen was *** analysis and SEM morphology analysis were conducted on the carbonised specimens obtained under atmospheric pressure carbonisation conditions using the curing *** was found that γ-C_(2)S could perform carbonisation well under atmospheric pressure,which promoted the carbonisation efficiency and decreased the carbonisation cost ***,a new carbonisation process solution was proposed for the rapid carbonisation of γ-C_(2)S.

关键词： type dicalcium silicate carbonization process curing agent atmospheric carbonization

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Recent Advances of Boron-Containing Chiral Luminescent Materials

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Chinese Journal of Chemistry 2025年第2期43卷 219-238页

作者： Jiaqi Di Shuran Han Pangkuan Chen Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering of the Ministry of Industry and Information TechnologySchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing102488 China

As a class of organic dyes,boron-containing compounds play an important role in organic luminescent *** have attracted considerable attention due to their unique photophysical *** luminescent systems have a wide range of practical applications in biological imaging,optoelectronic devices,information storage and 3D ***-containing chiral luminescent materials can not only effectively improve the luminescent properties of CPL materials,but also bring unique properties to the system,which enables them to be used as favorable CPL emitting materials for an expanded range of ***,we review the research progress of boron-containing chiral luminescent materials by the detailed discuss according to different chiral skeletons,such as point chirality,1,1’-binaphthyl,[n]helicenes,[2,2]paracyclophane and pillar[5]arenes.

关键词： Organoboron Chirality Circularly dichroism Circularly polarized luminescence Luminescent materials

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A review of existing and emerging binders for silicon anodic Li-ion batteries

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Nano Research 2023年第5期16卷 6736-6752页

作者： Yanxiu Liu Rong Shao Ruiyu Jiang Xinyu Song Zhong Jin Lin Sun Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province School of Chemistry and Chemical EngineeringYancheng Institute of TechnologyYancheng 224051China State Key Laboratory of Coordination Chemistry MOE Key Laboratory of Mesoscopic ChmistryMOE Key laboratory of High Performance Polymer Materials and TechnologyJiangsu Key laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Silicon anodes have been extensively studied as a potential alternative to graphite ones for Li-ion ***,their commercial application is limited by the issues of the poor structural and interfacial *** this regard,one of the key strategies for fully exploiting the capacity potential of Si-based anodes is to design robust conductive binder *** the amount of binder in the electrode is small,it is,however,considered as a critical component of Si-based anodes for Li-ion *** this review,a brief summary is given from the structural and functional aspects of the existing binders for Si *** particular,three-dimensional and multifunctional polymeric binders with excellent electrical conductivity,flexibility,adhesion prepared by chemical bonding,electrostatic and coordination interactions have become the focus of research,are expected to accelerate the practical application of silicon ***,some suggestions for the future development of Si anodic binders are put forward.

关键词： lithium ion battery silicon anode binder design interface cycle stability

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The nanocarrier strategy for crossing the blood-brain barrier in glioma therapy

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Chinese chemical Letters 2025年第4期36卷 9-19页

作者： Han Wu Yumei Wang Zekai Ren Hailin Cong Youqing Shen Bing Yu College of Chemistry and Chemical Engineering College of Materials Science and EngineeringInstitute of Biomedical Materials and EngineeringQingdao UniversityQingdao 266071China State Key Laboratory of Bio-Fibers and Eco-Textiles Qingdao UniversityQingdao 266071China School of Materials Science and Engineering Shandong University of TechnologyZibo 255000China Key Laboratory of Biomass Chemical Engineering of Ministry of Education Center for Bionanoengineeringand Department of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027China

Glioma is the most common malignant tumor of the brain. The postoperative recurrence rate was high,and the 2-year survival rate only increased by 20%–25%. The reason is the blood-brain barrier(BBB). BBB is a physical barrier that stabilizes the physiological environment of brain tissue and protects the central nervous system from the invasion of harmful substances. Drug delivery based on nanotechnology and nanocarriers has attracted much attention due to its biological safety, continuous drug release time,increasing solubility, biological drug activity, and enhanced BBB permeability. By modifying different substances on the surface of nanocarriers, the BBB is bypassed by receptor-mediated and cell endocytosis and exocytosis. In addition, the purpose of bypassing BBB-targeted drug delivery can also be achieved by intranasal administration and local administration. This paper reviews different target transport mechanisms, mainly in invasive and non-invasive strategies, the nanocarriers that have made progress and the nanocarrier strategy of bypassing BBB are listed.

关键词： Glioma Blood-brain barrier Nanocarriers Drug delivery Adsorption-mediated transport Receptor-mediated transport

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Improving discharge voltage and ion storage dynamic in polyaniline via modulation of carrier charge density for magnesiummetal batteries

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Nano Research 2024年第7期17卷 6168-6175页

作者： Ping Luo Feiyang Chao Chunli Zuo Wenwei Zhang Fangyu Xiong Zhen Huang Dongyao Zhu Gongtao Yu Wenhui Zhong Xingbao Chen Han Tang Xiujuan Wei Qinyou An Hubei Provincial Key Laboratory of Green Materials for Light Industry School of Materials and Chemical EngineeringHubei University of TechnologyWuhan 430068China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China College of Materials Science and Engineering Chongqing UniversityChongqing 400044China Institute for Sustainable Transformation School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 510006China

Rechargeable magnesium-metal batteries(RMBs)have gained much attention due to their abundant resources as well as high ***,the high charge density of Mg^(2+)is one of the main reasons for the slow kinetics performance of RMBs,and modulation of the charge density is an important strategy to improve the kinetics and electrochemical performance of ***,we report on the conductive polymer polyaniline(PANI)for RMBs,which is found to have excellent kinetics and high discharge voltage when storing MgCl^(+).In the storage of MgCl^(+),PANI exhibits a high average discharge voltage platform is 2.3 V ***^(2+)/Mg,which is higher than that in storage of Mg^(2+).We demonstrated the reversible intercalation/de-intercalation of MgCl^(+)in PANI accompanying with the reversible transformation between the quinone ring(C–C,–N=)and the benzene ring(C=C,–NH–)during charging and *** functional theory calculation reveals that PANI exhibit higher voltages(2.25 V vs.1.82 V)along with lower diffusion energy barriers(1.27 eV vs.1.55 eV)for MgCl^(+)storage compared to Mg^(2+)*** work refines the storage mechanism of PANI in RMBs and provides new guidelines for the application of PANI in RMBs.

关键词： rechargeable magnesium-metal batteries cathode materials polyaniline MgCl+storage

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Synthesis of atomically dispersed cationic nickel-confined mesoporous ZSM-48(ANMZ-48)directed by metal complexes in amphiphilic molecules

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Science China Chemistry 2024年第1期67卷 343-350页

作者： Yu Chen Quanzheng Deng Yiru Mao Yuxi Fang Zhihua Cao Honggen Peng Shunai Che Lu Han School of Chemical Science and Engineering Tongji UniversityShanghai 200092China School of Chemistry and Chemical Engineering Nanchang UniversityNanchang 330031China School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Resources and Environment Nanchang UniversityNanchang 330031China State Key Laboratory of Metal Matrix Composites Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong UniversityShanghai 200240China

The synthesis of mesoporous zeolite-anchored atomically dispersed metal catalysts(ADCs)is a considerable challenge in chemistry and materials *** we report the synthesis of atomically dispersed cationic nickel-confined mesoporous ZSM-48(ANMZ-48)by in situ hydrothermal reaction employing a designed tri-functional metal complex template,by which the triquaternary ammonium groups in the hydrophilic region direct the formation of ZSM-48 zeolite;the aromatic groups in the hydrophobic tail generate the mesopores through π-π stacking;and the complexes formed by nickel ions coordinated with terpyridyl groups generate atomically dispersed Ni2+confined in zeolite frameworks due to the strong sintering resistance generated by the strong coordination *** ANMZ-48 is consisting of stacking of sheet-like ZSM-48 domains connected by multiply crystal twinning sharing the common(011)plane,generating abundant of imbedded mesopores with the uniform thickness of~2.4 nm and with the width of 10-50 *** excellent catalytic activity and stability of ANMZ-48 were also reflected in the dry reforming of methane(DRM)reaction.

关键词： atomically dispersed catalyst mesoporous zeolite ZSM-48 in situ hydrothermal synthesis the dry reforming of methane reaction

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Sulfur poisoned PtNi/C catalysts toward two-electron oxygen reduction reaction for acidic electrosynthesis of hydrogen peroxide

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Journal of Materials Science & technology 2025年第1期204卷 268-275页

作者： Xin Yang Lijie Zhong Songxin Ye Dequan He Shuxian Yuan Huixin Li Yuting Ma Xiaocheng Mo Shiyu Gan Li Niu Center for Advanced Analytical Science Guangzhou Key Laboratory of Sensing Materials&DevicesGuangdong Engineering Technology Research Center for Photoelectric Sensing Materials&DevicesKey Laboratory of Optoelectronic Materials and Sensors in Guangdong Provincial UniversitiesSchool of Chemistry and Chemical EngineeringGuangzhou UniversityGuangzhou 510006China School of Chemical Engineering and Technology Sun Yat-Sen UniversityZhuhai 519082China

Selective electrocatalysis of two-electron oxygen reduction reaction(2e^(-)ORR)has been recognized as a sustainable and on-site process for hydrogen peroxide(H_(2)O_(2))*** progress has been achieved for 2e^(-)ORR in alkaline ***,it is challenged by insufficient activity and selectiv-ity of the catalysts in acidic ***,we report sulfur-poisoned PtNi/C catalysts(PtNiSx/C)that could regulate ORR from the 4e^(-)to 2e^(-)*** identified PtNiS0.6/C offers high activity in terms of onset potential of∼0.69 V(***)and∼80%*** mass activity is also compara-ble and outperforms representative Pt-based precious and transition-metal-based *** addition,it is interestingly found that the Faradaic efficiency further increased to 95%during the long-term elec-trolysis test due to Ni atom surface *** electrochemical production of the H_(2)O_(2)system was applied to the electro-Fenton process,which has realized the effective degradation of organic *** work offers a strategy by sulfur poisoning PtNi/C catalyst to realize Pt-based 2e^(-)ORR active catalysts to electrolysis of H_(2)O_(2)in acidic media.

关键词： Oxygen reduction reaction Hydrogen peroxide Acidic media Electrocatalysis

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Ru(II)-Catalyzed ortho C-H Allylation of N-Aryl-7-azaindoles with 2-Methylidene Cyclic Carbonate

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Chinese Journal of Chemistry 2024年第9期42卷 985-989页

作者： Jing Zhang Quan-Jian Luo Han-Chi Wang Jin-Heng Li Bo Sun State Key Laboratory Base of Eco-Chemical Engineering College of Chemical EngineeringQingdao University of Science and Technology QingdaoShandong266042China State key Laboratory of Applied Organic Chemistry Lanzhou University LanzhouGansu 7300ooChina School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiangHenan 453007China

A Ru(II)-catalyzed ortho allylation reaction of N-aryl-7-azaindole with readily available 2-methylidene cyclic carbonate has been *** reaction is an effective pathway for synthesizing 7-azaindole derivatives with a wide scope of substrates and high *** addition,the method can be extended to the allylation of other heterocyclic compounds and several cyclic carbonates,highlighting the practicality of this strategy for synthesis.

关键词： Ru(II) Allylation N-Aryl-7-azaindoles Cyclic carbonates Heterocyclic compounds C-H activation

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Leakage Proof,Flame-Retardant,and Electromagnetic Shield Wood Morphology Genetic Composite Phase Change Materials for Solar Thermal Energy Harvesting

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Nano-Micro Letters 2024年第10期16卷 99-120页

作者： Yuhui Chen Yang Meng Jiangyu Zhang Yuhui Xie Hua Guo Mukun He Xuetao Shi Yi Mei Xinxin Sheng Delong Xie Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials The International Joint Laboratory for Sustainable Polymers of Yunnan ProvinceThe Higher Educational Key Laboratory for Phosphorus Chemical Engineering of Yunnan ProvinceFaculty of Chemical EngineeringKunming University of Science and TechnologyKunming 650500People's Republic of China Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter School of Materials and EnergyGuangdong University of TechnologyGuangzhou 510006People's Republic of China Shaanxi Key Laboratory of Macromolecular Science and Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi'anShaanxi 710072People's Republic of China

Phase change materials(PCMs)offer a promising solution to address the challenges posed by intermittency and fluctuations in solar thermal ***,for organic solid-liquid PCMs,issues such as leakage,low thermal conductivity,lack of efficient solar-thermal media,and flamma-bility have constrained their broad ***,we present an innova-tive class of versatile composite phase change materials(CPCMs)developed through a facile and environmentally friendly synthesis approach,leveraging the inherent anisotropy and unidirectional porosity of wood aerogel(nanowood)to support polyethylene glycol(PEG).The wood modification process involves the incorporation of phytic acid(PA)and MXene hybrid structure through an evaporation-induced assembly method,which could impart non-leaking PEG filling while concurrently facilitating thermal conduction,light absorption,and ***,the as-prepared wood-based CPCMs showcase enhanced thermal conductivity(0.82 W m^(-1)K^(-1),about 4.6 times than PEG)as well as high latent heat of 135.5 kJ kg^(-1)(91.5%encapsula-tion)with thermal durability and stability throughout at least 200 heating and cooling cycles,featuring dramatic solar-thermal conversion efficiency up to 98.58%.In addition,with the synergistic effect of phytic acid and MXene,the flame-retardant performance of the CPCMs has been significantly enhanced,showing a self-extinguishing ***,the excellent electromagnetic shielding of 44.45 dB was endowed to the CPCMs,relieving contemporary health hazards associated with electromagnetic ***,we capitalize on the exquisite wood cell structure with unidirectional transport inherent in the development of multifunctional CPCMs,showcasing the operational principle through a proof-of-concept prototype system.

关键词： Wood PCMs MXene Solar thermal storage and conversion Flame-retardant Electromagnetic shielding

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DOPA/PEI surface-modified poly-4-methyl-1-pentene membranes and application in membrane aeration biofilm reactor

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Chinese Journal of chemical engineering 2025年第1期77卷 114-122页

作者： Yue Zhou Wenjun Li Hongjun Hu Zhaohui Wang Zhaoliang Cui State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 210009China National Engineering Research Center for Special Separation Membrane Nanjing Tech UniversityNanjing 210009China

The membrane aeration biofilm reactor(MABR)represents an innovative approach to wastewater treatment,integrating gas separation membranes with biofilm process and demonstrating effectiveness in treating wastewater rich in ammonia *** this system,hollow fiber membranes are essential,serving as a substrate for biofilm attachment while facilitating oxygen transfer to microorganisms through aeration,hydrophobic microporous membranes are utilized in MABR *** study focuses on the use of poly-4-methyl-1-pentene(PMP)hollow fiber membranes,which exhibit superior oxygen permeation capabilities compared to traditional hydrophobic microporous *** overcome the challenges posed by the hydrophobic nature and low bubble point of PMP microporous membranes,a hydrophilic modification was conducted using dopamine/poly(ethyleneimine)(DOPA/PEI)co-deposition to enhance microbial adhesion on the membrane *** composite membrane modified with DOPA/PEI exhibited an approximately 20%higher NH_(4)^(+)-N removal efficiency than the unmodified *** findings suggest that the incorporation of DOPA/PEI significantly improves MABR performance,underscoring its potential for further research and development in membrane technology for MABR.

关键词： Membrane aeration biofilm reactor Poly(4-methyl-1-pentene) Hollow fiber membrane Co-deposition modification

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