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Integrated Device for Osmotic Energy Collection and Detection Based on the Metal–Organic Framework of Nanoconfinement Channels

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CCS Chemistry 2025年第5期7卷 1424-1437页

作者： Hongyan Qi Jundong Zhong Weibo Sun Tingting Xu Zhen Xing Shuang Zhao Hujun Qian Haibo Zhang Jianxin Mu Xuanbo Zhu Lei Jiang National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymer College of ChemistryJilin UniversityChangchun 130012 State Key Laboratory of Supramolecular Structure and Materials Institute of Theoretical ChemistryCollege of ChemistryJilin UniversityChangchun 130012 CAS Key Laboratory of Bio-inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190

While industrial wastewater discharge causes pollution,it also contains abundant neglected ***,establishing effective methods for energy harvesting and real-time monitoring of pollution sources is a serious challenge,and includes high-salt solution accompanying nickel ions(Ni(II))in the electroplating ***,a nanoconfinement channel design strategy was adopted to custombuild a three-dimensional(3D)interpenetrating ion channel of metal–organic frameworks(MOFs).By introducing specific functional groups,the charge density of the ion channels could be *** energy harvesting achieved a maximumoutput power density of 9.1 W/m^(2),which was 6-fold greater than that of the typical commercial material,UiO-67,known to possess enhanced water stability and methane adsorption *** from the spatial distribution design of functional groups in the nanoconfinement channels enabled excellent ion selectivity and optimal energy ***,the nanoconfinement channels and functional groups collaborate to create a sensitive ion concentration detection space,presenting a well-designed modified ion channel for emission *** Ni(II)appeared,the current signal decreased by∼*** tripartite cooperation of functional groups,nanoconfinement,and Ni(II)-enabled stable and accurate detection ensured smooth working *** study not only provides a design strategy for energy harvesting and detection but also inspires the future design of integrated devices.

关键词： nanoconfinement channels of metal-organic frameworks ion transport ion identification osmotic energy harvesting integrated devices

Antifouling And Smart Covalent Organic Framework Composite Nanofiltration Membranes with Light-Gated Molecular Transport

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SSRN 2024年

作者： Chen, Dongru Miao, Qiuyu Cao, Ning Tang, Zhonghua Pang, Jinhui Wu, Liangyu Chen, Ning Tong, Xin College of Chemistry Chemical Engineering and Resource Utilization Northeast Forestry University Harbin150040 China Ministry of Education National & Local Joint Engineering Laboratory for Synthesis Technology of High Performance Polymer College of Chemistry Jilin University Changchun130012 China

Covalent organic framework (COF) hold great promise in affording precise and fast molecular separation. Inspired by the light-gated channels in cell membranes, we developed artificial light-gated molecular channel composite membranes by vacuum filtration COF with azobenzene (AZO) functional groups. The simple stimuli response could remotely adjust the membranes separation performance. The cis membranes with off state under ultraviolet (UV) light have higher dye rejection than trans membranes with on-state channels. The water flux of composite membranes increased from 19.56 to ~42.30 L h-1 m-2 bar-1, dye (Rose Bengal (RB)) rejection increased from 94.40% to 99.12% after 10 min of 365 nm UV irradiation. In addition, the composite nanofiltration membranes exhibited good antifouling performance due to hydrophilic and highly smooth surface. By controlling the trans-to-cis AZO isomerization via UV /visible (Vis) light, the solvent permeance and dye rejection can be dynamically tuned due to the adjustable pore size. © 2024, The Authors. All rights reserved.

关键词： Composite membranes

A Novel Ternary Inorganic -Organic Hybrid Flame Retardant Containing Biomass and Mofs for high-performance Rigid Polyurethane Foam

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SSRN 2023年

作者： Liu, Xiaoyan Guo, Pengyu Zhang, Borong Mu, Jianxin Key Laboratory of High Performance Plastics Ministry of Education National & Local Joint Engineering Laboratory for Synthesis Technology of High Performance Polymer College of Chemistry Jilin University Changchun130012 China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun130025 China

In this work, using biomass polydopamine (PDA) as an intermediate interface, ammonium polyphosphate (APP), PDA, and ZIF-67 were combined into a ternary inorganic‒organic hybrid flame retardant (A@P-Z). Compared with the flame retardant system composed of a physical mixture of APP and ZIF-67, the hybrid flame retardant not only strengthened the mechanical properties of RPUF composites owing to its good compatibility but also emerged with low total heat release, low total smoke production, and low peak CO production rate in cone calorimetry tests. RPUF/A@P-Z passed the UL-94 V-0 rating, which presented high flame-retardant efficiency of inorganic‒organic hybrid flame retardants and industrial application value of the composites. Due to the contribution of synergistic catalysis, the residual char of RPUF/A@P-Z showed high graphitization and high-quality char composition in a rich, rigid structure, which produced an outstanding charring effect and barrier effect. The hybrid flame retardant also produced an impressive flame inhibition effect in the gas phase, inhibiting the production of organic fragments and releasing phosphorus-containing and nitrogen-containing gaseous compounds with free radical quenching and diluting effects. This work provides a new and efficient way to prepare high-performance RPUF composites using inorganic-organic hybrid flame retardants. © 2023, The Authors. All rights reserved.

关键词： Polyurethanes

Multicolored electrochromic metallopolymers based on triphenylamine-substituted terpyridine coordination with transition metal ions

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Solar Energy Materials and Solar Cells 2025年 290卷

作者： Wu, Yuqi Cong, Bing Yuan, Jingjing Chao, Danming Lv, Yunxia Zhao, Xiaogang Zhou, Hongwei Chen, Chunhai Ministry of Education National & Local Joint Engineering Laboratory for Synthesis Technology of High Performance Polymer College of Chemistry Jilin University Changchun130012 China Changchun Department for Product Quality Supervision and Testing Changchun130012 China Center for Advanced Low-Dimension Materials Donghua University Shanghai201600 China

The design and synthesis of multicolored electrochromic materials are essential for advancing dynamic display technologies and enhancing the functionality of smart materials in various applications. Here, we have developed a series of triphenylamine-substituted terpyridine coordination metallopolymer (CMP) films through one-step electrochemical polymerization, utilizing six different transition metal ions: Fe2+, Ru2+, Zn2+, Co2+, Pd2+, and Ni2+. These metal ions serve as redox centers, combined with triphenylamine, to produce CMP films exhibiting exceptional color change performance (ΔT: 59.8 % at 700 nm for p-FeL2) as well as high coloration efficiency (307.8 cm2 C−1 for p-FeL2). The electrochromic properties of the six metal-coordinated polymer films were systematically compared, providing a comprehensive analysis of the structure-electrochromic property relationship driven by the varying metal-to-ligand charge transfer effects associated with different metal ions. Additionally, we integrated the CMP films with V2O5 to create a hybrid electrochromic device, which demonstrated reversible color changes. These results highlight the potential of CMP films for developing multicolor displays and advancing electrochromic technologies. © 2025

关键词： Electrochromic devices

本征可修复的导电聚合物/水凝胶纳米复合薄膜及其独特的体沟道用于实现高性能、柔性和可修复的有机光电晶体管

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Science China Materials 2024年第5期67卷 1491-1499页

作者：严育杰朱晓婷张国成汪秀梅韩笑李伟洲孙东亚李月婵王义谢安陈惠鹏 School of Materials Science and Engineering Xiamen University of TechnologyKey Laboratory of Functional Materials and Applications of Fujian ProvinceXiamen Key Laboratory of High Performance Metals and MaterialsXiamen UniversityXiamen361024China Institute of Optoelectronic Display National&Local United Engineering Laboratory of Flat Panel Display TechnologyFuzhou UniversityFuzhou350002China Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityFuzhou350207China Fujian University of Technology Fuzhou350108China School of Engineering Anhui Agricultural UniversityHefei230036China

柔性有机光电晶体管(OPTs)在大机械形变的下一代可穿戴系统中至关重要.然而,目前报道的大多数OPTs都是场效应基结构,其界面电荷传输和本征低跨导的特性限制了OPTs的机械柔性和光电性能的发展.此外,沟道层的p共轭半导体聚合物也缺乏特殊... 详细信息

柔性有机光电晶体管(OPTs)在大机械形变的下一代可穿戴系统中至关重要.然而,目前报道的大多数OPTs都是场效应基结构,其界面电荷传输和本征低跨导的特性限制了OPTs的机械柔性和光电性能的发展.此外,沟道层的p共轭半导体聚合物也缺乏特殊的可修复位点,使其很难实现薄膜的自我修复功能.本文报道了一个具有独特体沟道和强修复功能的柔性高光电性能的OPTs.该OPTs使用有机电化学晶体管架构,由3D体沟道的可修复导电聚合物/水凝胶复合薄膜组成.该器件不仅在遭受损伤后能够在100 ms内有效恢复其机械和电学性能,同时还展现出出色的机械柔性.更重要的是,该器件实现了紫外光波段的高光测性能,其中光响应度高达1.01×10^(5)A W^(-1),探测率达1.01×10^(5)A W^(-1),外量子效率达3.03×104%.结果表明,具有独特体沟道和本征可修复功能的OPTs在下一代可穿戴电子器件的使用中具有潜在应用价值.

关键词： electrochemical transistor interface phototransistor healing volumetric channel flexibility

Self-cleaning and Oil/Water Separation of 3D Network Super-hydrophobic Bead-like Fluorinated Silica Pellets/Poly(aryl ether ketone)Composite Membrane Fabricated via a Facile One-step Electrospinning

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Chemical Research in Chinese Universities 2020年第6期36卷 1320-1325页

作者： CUI Zengduo WANG Yongpeng LIU Mengzhu ZHANG Haibo JIANG Zhenhua National&Local Joint Engineering Laboratory for Synthesis Technology of High Performance Polymer College of ChemistryJilin UniversityChangchun 130012P.R.China College of Materials Science and Engineering Jilin Institute of Chemical TechnologyJilin 132022P.R.China

Novel super-hydrophobic fluorinated silica pellets/poly(aryl ether ketone)composite membranes with controllable structure have been prepared through incorporating poly(aryl ether ketonc)s with(3-triluoromethyl)-phenyl side groups and fluorinated silica pellets(F-SiO2)by a facile one-step *** the condition of adding 50%(mass fraction)F-SiO2 in the composite membrane,the water contact angle(WCA)reached its maximum(157°±4.3°).The controllable micro/nano-structures grown on the electrospun fibers could be regulated by the F-SiO2 loading,which was illustrated by scanning clectron microscopy(SEM).Moreover,these super-hydrophobic mem-branes also demonstrated excellent durability,anti-fouling property and oil-water separation ability after 200 h of water *** promising PAEK composite membranes with controllable structure have the potential values in large-scale application of filtration,oil-water separation and antifouling.

关键词： Poly(aryl ecther ketonc) Electrospinning Super-hydrophobic membrane Self-cleaning

Friction and wear behaviour of friction-induced crystallinity of polyaryl ether ketone (PAEK)

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Wear 2025年 576-577卷

作者： Li, Mengjiao Zhang, Ke Ma, Shengqi Liu, Gang Yao, Jianan Liu, Hao Center for Advanced Low-Dimension Materials State Key Laboratory of Advanced Fiber Materials College of Materials Science and Engineering Donghua University Shanghai201620 China Laboratory of High Performance Plastics Ministry of Education National & Local Joint Engineering Laboratory for Synthesis Technology of High Performance Polymer College of Chemistry Jilin University Changchun130012 China Shandong Institute of Nonmetallic Materials Jinan250031 China Institute of Advanced Technology and Equipment Beijing University of Chemical Technology Beijing100029 China

Poly aryl ether ketone (PAEK) is increasingly attractive as an essential matrix for its remarkable comprehensive performance. However, studies on the correlation between crystallinity and tribological properties of PAEK are still questionable. This study aimed to correlate the crystallinity of PAEK with its tribological properties and to analyze the behavior of friction-induced crystallization of PAEK in its nearly amorphous state. Herein, almost amorphous PAEK-A and semicrystalline PAEK were fabricated via injection molding, and the behavior of friction-induced crystallization of PAEK was investigated under dry sliding conditions at a pressure of 50 N and a velocity of 0.21 m/s. According to the results, PAEK-4A exhibited the lowest wear rate of 28.8 × 10−6 (mm3/Nm) of four PAEK-A in different flowabilities. The crystallinity of PAEK-4A wear debris was 33.9 %, which increased by 25.3 % compared with the initial samples. The intensity ratio of Raman characteristic peaks to characterize crystallinity variation also demonstrated the increase of crystallinity on the wear track (1.6–2.7). The crystallization behavior of PAEK-A wear debris and the crystalline behavior of PAEK-A triggered by the friction process played a positive role in improving the wear resistance of PAEK-A. This research guides the influence of various parameters on the friction performance of high-performance PAEK. © 2025 Elsevier B.V.

关键词： Tribology

high Methanol Resistance Semi-Crystalline Sulfonated Poly(Ether Ketone) Proton Exchange Membrane for Direct Methanol Fuel Cell

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SSRN 2022年

作者： Liu, Di Xie, Yunji Zhong, Jundong Yang, Fan Pang, Jinhui Jiang, Zhenhua Ministry of Education. National & Local Joint Engineering Laboratory for Synthesis Technology of High Performance Polymer College of Chemistry Jilin University Changchun130012 China

Three new sulfonated and semi-crystalline poly(ether ketone)-type copolymers with densely sulfonated microblock (Cr-SPEK) of different length are synthesized and evaluated as proton exchange membranes. The relationship between molecular structures of copolymers, microscopic morphology and macro performance of membranes are studied: The increase in the length of the hydrophilic sulfonated microblock facilitated constructing well-connected ionic transport channels, which improves the proton conduction of Cr-SPEK membranes. And expanding the size of hydrophobic poly(ether ketone) (PEK) block promoted higher crystallinity of copolymers, resulting in enhancing dimensional stability, mechanical tensile, oxidation stability and methanol resistance of Cr-SPEK membranes. The tCr-SPEK membrane with longest hydrophilic microblock and maximum crystallinity (15.2%) exhibited best comprehensive performance. The proton conductivity and swelling ratio of the tCr-SPEK membrane measured under fully hydrated state at 80 o C are 146.7 mS cm -1 and 11.9%, respectively. And the methanol permeability of tCr-SPEK membrane is only 1.1×10 −7 cm 2 s −1 , which is nearly one-sixteenth of that of Nafion 117 membrane. The single cell performance of tCr-SPEK membrane in direct methanol fuel cells (DMFCs) continuously grew with the higher concentration of methanol solution until 12 M. Therefore, the tCr-SPEK membrane represented great potential for application in DMFCs. © 2022, The Authors. All rights reserved.

关键词： Membranes

A Longitudinal Gradient Architecture Achieves the Better Tensile Properties in Ti6242 Alloy

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SSRN 2023年

作者： Guo, Yang Xu, Pingwei Liang, Yu College of Materials and Metallurgy Guizhou University Guiyang China Guizhou Key Laboratory for Mechanical Behavior and Microstructure of Materials Guizhou University Guiyang China National＆Local Joint Engineering Laboratory for High-performance Metal Structure Material and Advanced Manufacturing Technology Guiyang China

Simultaneous increase in strength and uniform ductility is obtained in Ti6242 joints using a longitudinal gradient structure. Such architecture also displays the strain hardening dependent on the volume fraction (Vf) of the gradient layer, and the maximum strain hardening is achieved in the freestanding gradient layer (Vf=100%). An extra strain hardening evidenced by the increased back stress occurs in gradient samples, which partly accounts for the concurrently improved properties. Also, more boundaries of α/β plates in lamellar structure and increased dislocations in primary α phase (αp) are responsible for the enhanced strength. Such microstructural characteristics in the gradient layer, including significant thinning of β plates, the locally disappeared boundaries of αp and transformed β structure (βt) and the reduced property difference between deformed αp and βt, contribute as well on the ductility improvement. This work provides a guideline for manufacturing high-performance Ti alloys via microstructural regulation or gradient architecture. © 2023, The Authors. All rights reserved.

关键词： Strain hardening