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Ion exchange membranes from poly(2,6-dimethyl-1,4-phenylene oxide) and related applications

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Science China Chemistry 2018年第9期61卷 1062-1087页

作者： Jiahui Zhou Peipei Zuo Yahua Liu zhengjin yang Tongwen Xu CAS Key Laboratory of Soft Matter Chemistry Collaborative Innovation Center of Chemistry for Energy Materials School of Chemistry and Materials Science University of Science and Technology of China

Ion exchange membranes(IEMs) play a significant role in fields of energy and environment, for instance fuel cells, diffusion dialysis, electrodialysis, etc. The limited choice of commercially available IEMs has produced a strong demand of fabricating IEMs with improved properties via facile synthetic strategies over the past two decades. Poly(phenylene oxide)(PPO) is considered as a promising polymeric material for constructing practical IEMs, due to its advantages of good physicochemical properties, low manufacturing cost and easy post functionalization. In this review, we present the accumulated efforts in synthetic strategies towards diverse types of PPO-based IEMs. Relation between polymer structures and the resulted features is discussed in detail. Besides, applying IEMs from PPO and its derivatives in fuel cell, diffusion dialysis and electrodialysis is summarized and commented.

关键词： poly(2,6-dimethyl-1,4-phenylene oxide) PPO ion exchange membrane modification application

Ion Exchange Membrane“ABC”–A Key Material for Upgrading Process Industries

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Chinese Journal of Chemistry 2021年第4期39卷 825-837页

作者： Yaoming Wang zhengjin yang Liang Wu Liang Ge Tongwen Xu CAS Key Laboratory of Soft Matter Chemistry Collaborative Innovation Center of Chemistry for Energy MaterialsSchool of Chemistry and Materials ScienceUniversity of Science and Technology of ChinaHefeiAnhui230026 China

Ion exchange membrane plays a crucial role in transforming and upgrading traditional chemical manufacturing procedures and boosting a multitude of new *** to the strict regulations on wastewater discharge and increasing demands of renewable energy,anion exchange membrane(“A”membrane),bipolar membrane(“B”membrane)and cation exchange membrane(“C”membrane)have become a key material for upgrading various process ***,we summarized several novel synthetic routes for“ABC”membranes fabrication from the viewpoints of designing novel membrane synthetic routes,regulating the ionic transport channels,imparting dynamic transfer regions,introducing intrinsic micro-porosity into the membrane and among *** account includes a brief introduction to membrane structure designs and fabrications,emerging and industrial applications,and perspectives on ion exchange membranes.

关键词： Anion exchange membrane Cation exchange membrane Bipolar membrane Water splitting Energy conversion

Eu-based anolytes for high-voltage and long-lifetime aqueous flow batteries

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Journal of Energy Chemistry 2021年第9期30卷 368-375页

作者： Pan Sun Yahua Liu Peipei Zuo Yuanyuan Li Qianru Chen zhengjin yang Tongwen Xu CAS Key Laboratory of Soft Matter Chemistry iCHEM(Collaborative Innovation Center of Chemistry for Energy Materials)Department of ChemistrySchool of Chemistry and MaterialsUniversity of Science and Technology of ChinaHefei 230026AnhuiChina Dalian National Laboratory for Clean Energy Dalian 116023LiaoningChina

Aqueous flow batteries(AFBs) are among the most promising electrochemical energy storage solutions for the massive-scale adoption of renewable electricity because of decoupled energy and power, design flexibility, improved safety and low cost. The development of high-voltage AFB is, however, limited by the lack of stable anolytes that have low redox potential. Here we report Eu-based anolytes for high-voltage p H-neutral AFB applications. Eu^(3+) has a reduction potential of -0.39 V vs. SHE, which can be dramatically lowered when forming stable complex with inexpensive organic chelates. A typical complex, Eu DTPA,features a low redox potential of -1.09 V vs. SHE, fast redox kinetics, and a high water solubility of 1.5 M. When paired with ferrocyanide, the battery had an open-circuit voltage of 1.56 V and demonstrated stable cell cycling performance, including a capacity retention rate of 99.997% per cycle over500 cycles at 40 m A cm^(-2), a current efficiency of >99.9%, and an energy efficiency of >83.3%. A high concentration anolyte at 1.5 M exhibited a volumetric capacity of 40.2 Ah L^(-1), which is one of the highest known for p H-neutral AFBs, promising a potent solution for the grid-scale storage of renewable electricity.

关键词： Energy storage Aqueous flow batteries Anolytes Europium

环磷腺苷葡胺联合硝酸异山梨酯治疗慢性肺源性心脏病合并心力衰竭的效果分析

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中国社区医师 2024年第6期40卷 11-13页

作者：杨正金方银罗普荣吴熙黔南州人民医院呼吸与危重症医学科贵州都匀558000

目的:分析环磷腺苷葡胺联合硝酸异山梨酯治疗慢性肺源性心脏病(简称慢性肺心病)合并心力衰竭的效果。方法:选取2016年1月—2021年12月黔南州人民医院收治的慢性肺心病合并心力衰竭患者72例作为研究对象,依据随机数字表法分为两组,各36... 详细信息

目的:分析环磷腺苷葡胺联合硝酸异山梨酯治疗慢性肺源性心脏病(简称慢性肺心病)合并心力衰竭的效果。方法:选取2016年1月—2021年12月黔南州人民医院收治的慢性肺心病合并心力衰竭患者72例作为研究对象,依据随机数字表法分为两组,各36例。对照组给予常规综合治疗,治疗组在对照组基础上应用环磷腺苷葡胺、硝酸异山梨酯治疗。比较两组治疗效果。结果:治疗组治疗总有效率高于对照组,差异有统计学意义(P=0.032)。治疗组心电图改善总有效率高于对照组,差异有统计学意义(P=0.003)。两组不良反应总发生率比较,差异无统计学意义(P=0.380)。结论:环磷腺苷葡胺联合硝酸异山梨酯治疗慢性肺心病合并心力衰竭的效果较好,可有效改善患者心肺功能,且治疗安全性较高。

关键词：环磷腺苷葡胺硝酸异山梨酯慢性肺源性心脏病心力衰竭

Tetrazole tethered polymers for alkaline anion exchange membranes

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Frontiers of Chemical Science and Engineering 2018年第2期12卷 306-310页

作者： Erigene Bakangura Yubin He Xiaolin Ge Yuan Zhu Liang Wu Jin Ran Congliang Cheng Kamana Emmanuel zhengjin yang Tongwen Xu CAS Key Laboratory of Soft Matter Chemistry Collaborative Innovation Center of Chemistry for Energy Materials School of Chemistry and Material Science University of Science and Technology of China Hefei 230026 China

Poly（2,6-dimethyl-l,4-phenylene oxide） was tethered with a 1,5-disubstituted tetrazole through a quaternary ammonium linkage. The formation of a tetrazole-ion network in the resulting polymers was found to promote t... 详细信息

关键词： anion exchange membrane fuel cell phase separation tetrazole

A new nonfullerene acceptor with an extended π conjugation core enables ternary organic solar cells approaching 19%efficiency

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Nano Research 2024年第5期17卷 4062-4068页

作者： Chunyan Liu Nailiang Qiu zhengjin Li Yan Lu School of Materials Science and Engineering Tianjin Key Laboratory for Photoelectric Materials and DevicesKey Laboratory of Display Materials and Photoelectric DevicesMinistry of EducationTianjin University of TechnologyTianjin 300384China School of Chemistry Chemical Engineering and MaterialsJining UniversityQufu 273155China

In organic solar cells(OSCs),it is an effective way to improve the power conversion efficiency(PCE)by adding a guest component with appropriate absorption and energy levels in the host ***,a new nonfullerene acceptor(NFA)named TBF-2Cl was developed by the strategy of expanding theπconjugated core of 2,2’-(((4,4,9,9-tetrahexyl-4,9-dihydro-s-indaceno[1,2-b:5,6-b’]dithiophene-2,7-diyl)bis(methaneylylidene))bis(5,6-dichloro-3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile(IDT-4Cl)with two benzene *** increase of benzene units,TBF-2Cl exhibits higher lowest unoccupied molecular orbital(LUMO)level of-3.75 eV than that of one benzene unit based NFA IDT-4Cl and fluorene core based NFA F-2Cl,which facilitates enhancing the open-circuit voltage(V_(oc))of ternary ***,TBF-2Cl film shows a medium optical bandgap with the absorption range from 500-800 nm,being well complementary with the wide bandgap polymer donor D18 and narrow bandgap NFA ***,a remarkable PCE of 18.92%with a high short-circuit current density(J_(sc))of 27.40 mA·cm^(-2),a fill factor(FF)of 0.749,especially an outstanding V_(oc) of 0.922 V was achieved for the optimal ternary device based on D18:TBF-2Cl:CH-6F,surpassing the binary counterpart(17.08%).The findings provide insight into the development of new guest acceptors for obtaining more efficient OSCs.

关键词： medium optical bandgap high lowest unoccupied molecular orbital(LUMO)level the third component ternary organic solar cell high open-circuit voltage

Spatial and Temporal Differences of Climate Suitability of Ice and Snow Sports in Major Ski Tourism Destinations in China

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Chinese Geographical Science 2024年第5期34卷 967-982页

作者： XIE Xia PANG zhengjin ZHU Haiqiang GAO Jun ZHOU Qiaoya Key Laboratory of the Sustainable Development of Xinjiang’s Historical and Cultural Tourism Xinjiang UniversityUrumqi 830046China College of Tourism Xinjiang UniversityUrumqi 830046China School of Tourism Management Sun Yat-sen UniversityZhuhai 519000China

Ice and snow tourism in China has grown significantly since the country successfully hosted the Beijing Winter *** conditions profoundly impact the development of ice and snow tourism;however,most studies have focused on constructing different climate suitability indicators for ice and snow tourism to evaluate individual regions,lacking horizontal comparative studies across multiple *** study aims to enrich the connotation of climate suitability for ice and snow sports,establish an evaluation model based on snowfall amount,temperature,and wind speed,and use daily meteorological data from 1991 to 2021 to horizontally compare the climate suitability for ice and snow sports in major ski tourism destinations in *** study boasts four major findings:1)the average ice and snow sports climate index of each region decreases over time,and the overall suitability of the climate for ice and snow sports is reducing;2)northern Xinjiang exhibits the most evident regional differentiation from‘very suitable’to‘generally suitable’;3)the spatial zoning of climate suitability for ice and snow sports exhibits heterogeneity,as northern Xinjiang is divided into two‘suitable and above’zones with rotating empirical orthogonal function(REOF).Correspondingly,the four provinces of Hebei,Heilongjiang,Jilin,and Liaoning are divided into three‘generally suitable and above’zones;4)snowfall amount is the main factor affecting the climate suitability of ice and snow sports in the major ski tourist destinations in China.

关键词： ice and snow tourism climate suitability rotating empirical orthogonal function(REOF) spatial division China

Mimotope peptide modified pompon mum-like magnetic microparticles for precise recognition,capture and biotransformation analysis of rituximab in biological fluids

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Acta Pharmaceutica Sinica B 2024年第3期14卷 1317-1328页

作者： Jiawen yang Aixuan Zhou Minyi Li Qiaoxian He Jingwei Zhou Jacques Crommen Wentao Wang zhengjin Jiang Qiqin Wang Institute of Pharmaceutical Analysis College of Pharmacy/State Key Laboratory of Bioactive Molecules and Druggability Assessment/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education(MOE)of ChinaJinan UniversityGuangzhou 510632China Laboratory for the Analysis of Medicines Department of Pharmaceutical SciencesCIRMUniversity of LiegeLiege B-4000Belgium SCIEX Shanghai 200050China

Due to low immobilized ligand density,limited binding capacity,and severe interference from serum proteins,developing ideal peptide-based biomaterials for precise recognition and in vivo analysis of biopharmaceuticals remains a huge *** this study,mimotope peptide modified pompon mum-like biomimetic magnetic microparticles(MMPs,3.8μm)that mimic the specific functionalities of CD20 on malignant B cells were developed for the first *** from the numerous ligand binding sites(Ni^(2+))on the pompon mum-like MMPs,these novel materials achieved≥10 times higher peptide ligand densities(>2300 mg/g)and antibody binding capacities(1380 mg/g)compared to previous reported *** the high specificity of the mimotope peptide,rituximab can be precisely recognized and enriched from cell culture media or serum *** also established an LC-MS/MS method using the MMPs for tracking rituximab biotransformation in patient ***,deamidation of Asn55 and Asn33,as well as oxidation of Met81 and Met34 were observed at the key complementarity determining regions of rituximab,which could potentially influence antibody function and require careful ***,these versatile biomimetic MMPs demonstrate superior recognition and enrichment capabilities for target antibodies,offering interesting possibilities for biotransformation analysis of biopharmaceuticals in patient serum.

关键词： Therapeutic monoclonal antibody Mimotope peptide Precise recognition Peptide-based biomaterials Biotransformation Patient serum

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高温质子交换膜研究进展

化工学报 2021年第1期72卷 132-142页

作者：李慧杨正金徐铜文中国科学技术大学化学与材料科学学院安徽合肥230026

高温质子交换膜燃料电池(HT-PEMFCs)因其具有催化剂CO耐受性良好,能量转化率高,水热管理简单等优点,成为了能源领域重要的研究方向之一。高温质子交换膜(HTPEM)是它的主要部件之一,分别以水、磷酸分子和咪唑分子为质子传导载体分析了目... 详细信息

高温质子交换膜燃料电池(HT-PEMFCs)因其具有催化剂CO耐受性良好,能量转化率高,水热管理简单等优点,成为了能源领域重要的研究方向之一。高温质子交换膜(HTPEM)是它的主要部件之一,分别以水、磷酸分子和咪唑分子为质子传导载体分析了目前HTPEM的研究现状,比较后得出了以磷酸为质子载体的HTPEM性能最佳的结论,指出了研究中尚存的问题,并展望了未来HTPEM可能的研究方向。

关键词：燃料电池膜高温质子交换膜电导率