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共价有机框架材料:一类新兴的均孔吸附分离树脂

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科学通报 2024年第16期69卷 2233-2245页

作者：王孟锦王洒任红霞陈瑶张振杰南开大学化学学院天津300071 南开大学药物化学生物学国家重点实验室天津300071 南开大学药学院天津300071

吸附分离树脂可实现离子/分子的交换与吸附,是目前在生产与生活中应用最广泛的一类功能性高分子材料.近年来,共价有机框架材料(covalent organic frameworks,COFs)由于其均匀有序的孔结构以及结构可设计性得到了广泛关注,在稳定性、选... 详细信息

吸附分离树脂可实现离子/分子的交换与吸附,是目前在生产与生活中应用最广泛的一类功能性高分子材料.近年来,共价有机框架材料(covalent organic frameworks,COFs)由于其均匀有序的孔结构以及结构可设计性得到了广泛关注,在稳定性、选择性、吸附容量等方面相较传统吸附分离树脂材料展示出显著优势,可作为新一代的超级吸附分离树脂材料.本文总结了COF树脂的发展历史、设计合成策略以及功能应用,并对目前的发展瓶颈以及工业化进行了展望.

关键词：树脂吸附分离共价有机框架材料

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补虚化瘀组方治疗原发性胆汁性胆管炎的效果

西北药学杂志 2024年第3期39卷 90-94页

作者：张祯捷黄洋张玮上海中医药大学附属龙华医院感染科上海200032

目的探究补虚化瘀组方对原发性胆汁性胆管炎(primary biliary cholangitis,PBC)中医临床症状及免疫功能的影响。方法选取80例PBC患者作为研究对象,用单双球法随机分为对照组和治疗组,每组40例。对照组给予基础治疗,治疗组在基础治疗的... 详细信息

目的探究补虚化瘀组方对原发性胆汁性胆管炎(primary biliary cholangitis,PBC)中医临床症状及免疫功能的影响。方法选取80例PBC患者作为研究对象,用单双球法随机分为对照组和治疗组,每组40例。对照组给予基础治疗,治疗组在基础治疗的基础上予以补虚化瘀组方治疗。比较治疗前和治疗6个月后,2组患者中医症候积分(腹胀、胁肋疼痛、乏力、皮肤瘙痒及大便不调)、肝功能指标[天冬氨酸氨基转移酶(aspartate aminotransferase,AST)、丙氨酸氨基转移酶(alanine aminotransferase,ALT)、谷氨酰转肽酶(glutamyl transpeptidase,GGT)、碱性磷酸酶(alkaline phosphatase,ALP)及总胆红素(total bilirubin,TB)]、免疫功能[免疫细胞(CD4^(+)、CD8^(+))、免疫球蛋白A(immunoglobulin A,IgA)、免疫球蛋白G(immunoglobulin G,IgG)及免疫球蛋白M(immunoglobulin M,IgM)],记录2组患者不良反应(头晕、恶心呕吐、腹泻及皮疹)的发生情况。结果治疗6个月后,2组患者的中医症候积分、肝功能指标及免疫功能均降低,且治疗组低于对照组(均P0.05)。结论补虚化瘀组方可以改善PBC患者中医临床症状及肝功能,增强患者免疫力,减少不良反应的发生。

关键词：补虚化瘀组方原发性胆汁性胆管炎中医临床症状免疫功能

Spatial Analysis of Fe Deposits in Fujian Province, China: Implications for Mineral Exploration

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Journal of Earth Science 2015年第6期26卷 813-820页

作者： Ziye Wang Renguang Zuo zhenjie zhang State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences School of the Earth Sciences and Resources China University of Geosciences

Spatial point pattern statistics, fractal analysis and Fry analysis in support of GIS were applied to explore the spatial distribution characteristics of mineral deposits and the spatial relationships between mineralization and geological features in Fujian Province（China）. The results of Ripley＇s K（r） revealed a clustered distribution of Fe deposits in space with a fractal dimension of 1.38. Fry analysis showed that Fe deposits distributed mainly along a NNE-NE trend. Buffer analysis showed that most of the known Fe deposits developed within 4 km buffer zones of the NNE-NE-trending faults, Yanshanian intrusions, and Late Paleozoic marine sedimentary rocks and the carbonate formations（C–P Formation）, indicating that they possibly control the spatial distribution of Fe mineralization. This is possibly because the NNE-NE-trending faults, Yanshanian intrusions, and C–P Formation provided pathways of fluids, energy and a part of metal, and zones of deposition for the Fe mineralization, respectively. The fractal relation of the number of Fe deposits occurring within the buffer zones of geological features was observed. The fractal dimension suggested that the significance of Yanshanian intrusions and C–P Formation are greater than that of NNE-NE-trending faults in controlling the formation of Fe mineralization. These findings are useful for better understanding the formation of the mineralization and provide significant information for further mineral exploration.

关键词： Ripley's K(r) function fractal dimension Fry analysis Fe deposits Fujian.

Biomolecule@COF:Natural-artificial hybrid microcapsules for controllable biocatalysis

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Particuology 2022年第5期20卷 140-144页

作者： Shan Qiao Mingmin Li Jiangyue Yu Sainan zhang Dong Yan zhenjie zhang Yao Chen State Key Laboratory of Medicinal Chemical Biology College of PharmacyNankai UniversityTianjin 300071China Life and Health Research Institute School of Chemistry and Chemical Engineering Tianjin University of TechnologyTianjin 300384China College of Chemistry Nankai UniversityTianjin 300071China

The assembly of biomacromole particles with artificial solid matrixes to fabricate hybrid composites has been demonstrated as an efficient strategy to promote both components'*** matrixes as well as appropriate assembly method is essential for optimal performances of the obtained natural-artificial ***,we fabricated the Cyt c@COF-42-B microcapsule through a sacrificial templating method and researched their adjustable biocatalysis by precisely adjusting the microenvironments of these assembled enzyme@COF *** a result,the hydrophobicity and mass transfer of the COF microcapsule can be controlled by modifying the different amounts of PEG moieties,thus improving the composite's *** found that compared with pristine Cyt c@COF-42-B without PEG,the Cyt c@COF-42-B-PEG exhibited a~2.2 times higher *** study provides a significant step toward designing customizable functional natural-artificial composites for enhanced biomacromolecule's activity.

关键词： Biomolecule COFs Immobilization Capsules Controllable catalysis

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大气信道激光通信系统光束偏振的特性分析

自动化应用 2024年第16期65卷 220-222,226页

作者：倪婧张雪瑞张振杰马利丽张洁国网新疆电力有限公司信息通信公司新疆乌鲁木齐830002

作为一种新型的无线通信技术,大气信道激光通信的传输距离和数据速率均远高于传统无线电通信。但受大气层中各种因素的影响,这种通信系统的性能受到了很大限制。其中,光束偏振是影响激光通信系统的关键因素。不同类型的光束偏振会对通... 详细信息

作为一种新型的无线通信技术,大气信道激光通信的传输距离和数据速率均远高于传统无线电通信。但受大气层中各种因素的影响,这种通信系统的性能受到了很大限制。其中,光束偏振是影响激光通信系统的关键因素。不同类型的光束偏振会对通信系统产生不同影响。从大气信道激光通信系统概述及传输理论出发,通过分析大气信道激光通信系统光束偏振传输理论,以期为未来的激光通信发展提供一定参考。

关键词：光束偏振大气信道激光通信

Zircon U-Pb-Hf Isotopic Systematics and Geochemistry of the Granites in the Wurinitu Molybdenum Deposit, Inner Mongolia, China： Implications for Tectonic Setting and Genetic Type of Mineralization

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Acta Geologica Sinica(English Edition) 2016年第6期90卷 2066-2079页

作者： zhang zhenjie CHENG Qiuming YAO Lingqing BAI Huishan LI Cheng School of Earth Sciences and Resources China University of Geosciences Beijing 100083 China State Key Laboratory of Geological Processes and Mineral Resources (GPMR) China University of Geosciences Wuhan 430074 Hubei China

The Wurinitu Mo deposit is one of the newly found molybdenum deposits in the southwestern part of the late Paleozoic–Mesozoic Erenhot–Dong-Ujimqin metallogenic belt （S-EDMB）, Inner Mongolia, China. In the present study, the mineralization age of the Wurinitu deposit is constrained to 137.3 ± 1.3 to 131.9 ± 1.5 Ma based on a combination of the laser ablation–inductively coupled plasma–mass spectrometry （LA–ICP–MS） zircon U–Pb dating of the mineralization related fine-grained monzonitic granite and the post-mineralization granite porphyry. The results of zircon Lu–Hf isotopes, combined with the geochemical characteristics of the granites in the S-EDMB, suggest that the Wurinitu Mo deposit was formed in an extensional environment in relation to the subduction of the Paleo-Pacific plate in late Mesozoic. The Wurinitu deposit shares similarities with the classical Climax-type porphyry molybdenum deposits in tectonic setting, mineral assemblages, and metal zonation.

关键词： Wurinitu deposit U–Pb dating Lu–Hf isotopes geodynamic backgrounds of mineralization Climax-type

Stabilization of cathode electrolyte interphase for aqueous zinc-ion batteries

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Journal of Energy Chemistry 2024年第9期96卷 359-386页

作者： zhenjie Yao Wenyao zhang Junwu Zhu Key Laboratory for Soft Chemistry and Functional Materials Ministry of Education Nanjing University of Science and TechnologyNanjing 210094JiangsuChina

Aqueous zinc-ion battery systems are attractive for next-generation energy storage devices,however,the unstable electrode electrolyte interphase,especially cathode electrolyte interphase(CEI),has induced rapid capacity attenuation,insufficient cycle life,and severe safety *** the researching of CEI formation,composition,dynamic structure,and reaction mechanisms would help in understanding the fundamental electrochemistry at CEI such as electron and ion transport processes,further strengthening the specific capacity,rate,and cycle performance of the cathode *** this review,we summarized the latest progress in understanding interfacial reaction mechanisms and ion dynamic behavior,emphasizing the impact of surface-specific adsorption and solvation behaviors on the interface's ultimate structure and chemical ***,the significant challenges that persist in CEI formation mechanisms,such as cathodic dissolution,by-product formation,electrostatic interactions,constrained electrochemical windows,oxygen evolution reaction,overpotentials,phase transitions,and additional factors,were *** challenges are explored to identify triggers contributing to the depletion of active materials and alterations in the composition or state of the ***,with a deep comprehension of interfacial behaviors,the review articulates innovative optimization strategies through a detailed categorization of approaches in electrolyte engineering,cathode engineering,and artificial CEI ***,future challenges and development directions of CEI are *** hope to offer insights for constructing robust CEI films to achieve high performance aqueous zinc-ion batteries.

关键词： Aqueous zinc-ion batteries Cathode-electrolyte interphase Energy storage

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流体机械转子系统非线性振动机理研究

流体机械 2024年第1期52卷 56-61,75页

作者：张振杰赵金月常学森刘爱玲姚权桐高攀龙辽宁科技大学机械工程与自动化学院辽宁鞍山114051 辽宁科技大学创新创业学院辽宁鞍山114051 合肥通用机械研究院有限公司合肥230031

为解决现有转子的线性振动模型难以精确描述转子非线性振动的问题,建立了基于Muszynska非线性密封力模型的转子-密封-轴承系统的非线性运动模型。运用四阶龙格-库塔法求解了转子系统的非线性运动方程,分别分析了在3000,8500,12000,15000... 详细信息

为解决现有转子的线性振动模型难以精确描述转子非线性振动的问题,建立了基于Muszynska非线性密封力模型的转子-密封-轴承系统的非线性运动模型。运用四阶龙格-库塔法求解了转子系统的非线性运动方程,分别分析了在3000,8500,12000,15000 r/min转速下转子的轴心轨迹图;还求解了转速、转子结构和轴承尺寸等参数下的振动分岔图。基于建立的非线性振动模型,搭建了转子-密封-轴承系统试验台,探究了压强对转子轴心轨迹振动的影响,最终从模拟和试验2个方面探究了转子的振动规律,为进一步的优化提供基础。结果表明,在转子转速由3000 r/min增大到12000 r/min的过程中,轴心轨迹图由无量纲半径为0.4的圆形逐渐变为成倍周期图型;当转速超过15000 r/min时,转子的振动变得没有规律,变成混沌图;从转子不同影响参数下的分岔图发现,转子系统的振幅与转速和密封长度成正比,与密封间隙和轴承润滑长度成反比;在设计转子结构时可以通过增加密封间隙或延长轴承润滑长度的方式降低振幅。在转子系统中,影响最大的因素是转子转速,其次是转子结构。

关键词： Muszynska非线性流体激振力转子-密封-轴承系统振动特性

Metallocorrole-based porous organic polymers as a heterogeneous catalytic nanoplatform for efficient carbon dioxide conversion

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Nano Research 2022年第2期15卷 1145-1152页

作者： Yanming Zhao Yunlei Peng Chuan Shan Zhou Lu Lukasz Wojtas zhenjie zhang Bao zhang Yaqing Feng Shengqian Ma School of Chemical Engineering and Technology Tianjin UniversityTianjin 300350China Department of Chemistry University of North TexasDentonTexas 76201USA College of Chemistry Nankai UniversityTianjin 300071China Department of Chemistry University of South FloridaTampaFlorida 33620USA Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072China

Metallocorrole macrocycles that represent a burgeoning class of attractive metal-complexes from the porphyrinoid family,have attracted great interest in recent years owing to their unique structure and excellent performance revealed in many fields,yet further functionalization through incorporating these motifs into porous nanomaterials employing the bottom-up approach is still scarce and remains synthetically ***,we report the targeted synthesis of porous organic polymers(POPs)constructed from custom-designed Mn and Fe-corrole complex building units,respectively denoted as CorPOP-1(Mn)and CorPOP-1(FeCl).Specifically,the robust CorPOP-1(Mn)bearing Mn-corrole active centers displays superior heterogeneous catalytic activity toward solvent-free cycloaddition of carbon dioxide(CO_(2))with epoxides to form cyclic carbonates under mild reaction conditions as compared with the homogeneous ***-1(Mn)can be easily recycled and does not show significant loss of reactivity after seven successive *** work highlights the potential of metallocorrole-based porous solid catalysts for targeting CO_(2) transformations,and would provide a guide for the task-specific development of more corrole-based multifunctional materials for extended applications.

关键词： corrole porphyrinoid derivatives heterogenization porous organic polymers(POPs) CO_(2)conversion heterogeneous catalysis