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Nano Research 2024年第5期17卷 4639-4640页

作者： Riming Nie Xiaokai Chen Zhongping Li Weicun Chu Si Ma Changqing Li Xiaoming Liu Yonghua Chen Zhuhua Zhang Wanlin Guo State Key Laboratory of Mechanics and Control of Mechanical Structures Key Laboratoryfor Itligent Nano Materials and Devices of the Ministry of EducationInstitute for Frontier ScienceNanjing University of Aeronautics and AstronauticsNarnjing 210016China Department of Chemical and Biomolecular Engineering Yonsei Universit50 Yonsei roSeodaemun-guSeoul 120749Republic of Korea College of Chemistry jilin UniversityChangchun 130012China Department of Energy and Chemical Engineering Ulsan National Instute of Science and Technology(UNIST)50 UNIST-gilEonyang-eupUju-gunUlsan 44919Republic of Korea Key Laboratory of Flexible Electronics(KLoFE) School of Flexible Electronics(Future Technologies)&Institute of Advanced Materials(IAM)Nanjing Tech University(Nanjing Tech)Nanjing 211816China

Erratum to Nano Research,2023,16(7):9387-9397 htps:/oi.or/0.100/1274-023-5603-040(1)One sentence in the article was unfortunately mispresented on page 9392.Instead of As shown in Fig.S19 in the ESM,the A2/A2 values of... 详细信息

关键词： cof columns perovskite

TpBD-3COOH cof的制备及对废水中罗丹明B吸附性能研究

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湿法冶金 2024年第2期43卷 172-177页

作者：那迪刘诚李杨梅刘壹包茜李文星阮琼云南民族大学云南昆明650500 云南师范大学云南昆明650500

研究了以三醛基间苯三酚(Tp)、4,4-二氨基联苯-2,2-二羧酸(DBd)和联苯二胺(BD)为原料,通过溶剂热法制备新型羧基官能化的二维共价有机框架材料TpBD-3COOH cof,并用于吸附罗丹明B染料废水,采用XRD、FT-IR、SEM对其形貌进行了表征。结果表... 详细信息

研究了以三醛基间苯三酚(Tp)、4,4-二氨基联苯-2,2-二羧酸(DBd)和联苯二胺(BD)为原料,通过溶剂热法制备新型羧基官能化的二维共价有机框架材料TpBD-3COOH cof,并用于吸附罗丹明B染料废水,采用XRD、FT-IR、SEM对其形貌进行了表征。结果表明:在pH=4、TpBD-3COOH cof用量8 mg、废水中罗丹明B质量浓度10 mg/L条件下吸附60 min,罗丹明B去除率可达95%;5次重复试验后,TpBD-3COOH cof对罗丹明B的去除率仍可达70%以上,且吸附过程与准二级动力学模型和Langmuir等温吸附模型相吻合。

关键词： TpBD-3COOH cof 材料溶剂热法罗丹明B 吸附废水去除

全球好豆,汇聚昆山——记2024昆山国际咖啡产业展览会(cofAIR 2024)

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中国食品 2024年第11期 34-36页

作者：林华无不详 cofAIR 2024

2024年5月19日,由中国食品工业协会主办、中国食品工业协会咖啡与饮品专业委员会承办的备受全球咖啡从业者瞩目的年度盛会——2024昆山国际咖啡产业展览会(cofAIR 2024)在江苏省昆山市划上了完美的句号。本届展会以“创新·灵感·未来... 详细信息

2024年5月19日,由中国食品工业协会主办、中国食品工业协会咖啡与饮品专业委员会承办的备受全球咖啡从业者瞩目的年度盛会——2024昆山国际咖啡产业展览会(cofAIR 2024)在江苏省昆山市划上了完美的句号。本届展会以“创新·灵感·未来”为主题,规模超过16000平方米,吸引了全球11个国家的573家企业及品牌参展,到场专业观众超12000人次。

关键词：咖啡产业江苏省昆山市 cof 专业观众昆山展览会

cof-derived Co nanoparticles@N-doped carbon electrocatalysts for high performance Zn-air batteries

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Chinese Journal of Chemical Engineering 2023年第11期63卷 43-50页

作者： Jie Wei Chengcai Zhao Ming Chen Fengying Liu Limin Zhao Hui Zhao Zhong-Yong Yuan School of Materials Science and Engineering Liaocheng UniversityLiaocheng 252000China College of Chemistry and Chemical Engineering Xinyang Normal UniversityXinyang 464000China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) School of Materials Science and EngineeringNankai UniversityTianjin 300350China

Precise modulation of the structure and composition of electrocatalysts is critical for promoting the kinetically sluggish process of oxygen reduction reaction(ORR)and oxygen evolution reaction(OER).Covalent organic frameworks(cof)offer a novel way to create highly efficient electrocatalysts due to their tunable composition,structure and surface area.Herein,we report a high-efficiency bifunctional electrocatalyst comprising Co nanoparticles embedded within N-doped carbons(Co@NCs)for Zn-air batteries(ZABs).The Co@NC is yielded via the coordination of a triazine cof with Co-containing precursors and subsequent calcination under inert atmosphere.The as-prepared Co@NC exhibits remarkable ORR/OER performance and great potential in rechargeable ZABs.The liquid ZAB constructed with Co@NC provides both high specific capacity and power density.Remarkably,the ZAB exhibits a voltage gap of 0.8 V during discharge and charge cycles and high stability for 220 h compared to the Pt/C-assembled battery.This strategy for regulating electrocatalytic activities of cof-derived carbon materials could be expanded for creating various carbon catalysts.

关键词： cof Co@NC Composites Electrochemistry Catalysis Zn-air battery

Topology control of three-dimensional covalent organic frameworks by adjusting steric hindrance effect

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Science China Chemistry 2022年第11期65卷 2177-2181页

作者： Yang Xie Meng Liu Honglin Du Bo Gui Junliang Sun Cheng Wang Sauvage Center for Molecular Sciences College of Chemistry and Molecular SciencesWuhan UniversityWuhan 430072China College of Chemistry and Molecular Engineering Beijing National Laboratory for Molecular SciencesPeking UniversityBeijing100871China

Since the intrinsic topological network determines their pore characteristics and functional applications, it is important to construct 3D cofs with target topology from predesigned functional building blocks. However, when starting from precursors with same connectivity but different bulky groups, the structure and topology of 3D cofs may change, which will greatly increase the complexity of the crystal structure determination. Therefore, it is essential to understand how to control the steric hindrance effects and synthesize 3D cofs with target topology. Herein, we report the topology control of 3D cofs by adjusting steric hindrance effects of functional building blocks. Starting from a quadrilateral building block with sterically hindered phenyl groups, we have been able to achieve the target pts topology instead of the unprecedented ljh network that we reported recently by elongating the tetrahedral building block. This result clearly shows that it is promising to precisely control the topology of 3D cofs by judiciously selecting building blocks with steric hindrance and suitable dimensions.

关键词： cof 3D reticular chemistry topology control steric hindrance effect

冷冻电镜在纳米材料研究中的应用:进展与展望

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Science China Materials 2022年第10期65卷 2613-2626页

作者：张景超温杰刘伟迪崔晓亚陈亚楠 School of Materials Science and Engineering Tianjin UniversityTianjin 300072China Beijing Advanced Innovation Center for Structural Biology Tsinghua-Peking Center for Life SciencesCentre for Plant BiologySchool of Life SciencesTsinghua UniversityBeijing 100084China Beijing Frontier Research Center for Biological Structures Tsinghua UniversityBeijing 100084China Ministry of Education Key Laboratory of Protein Sciences Beijing Advanced Innovation Center for Structural BiologySchool of Life SciencesTsinghua UniversityBeijing 100084China Australian Institute for Bioengineering and Nanotechnology The University of QueenslandBrisbaneQueensland 4072Australia

自2013年“分辨率革命”以来,冷冻电子显微镜(cryo-EM)广泛推动了结构生物学研究的发展,并很快在2017年荣获诺贝尔化学奖.相机技术和软件算法的进步使cryo-EM得以实现对生物分子三维结构的近原子分辨率表征.生物分子通常对电子辐照损伤... 详细信息

自2013年“分辨率革命”以来,冷冻电子显微镜(cryo-EM)广泛推动了结构生物学研究的发展,并很快在2017年荣获诺贝尔化学奖.相机技术和软件算法的进步使cryo-EM得以实现对生物分子三维结构的近原子分辨率表征.生物分子通常对电子辐照损伤较为敏感,而低温可以将辐照损伤最小化.这一原理启发了材料科学家利用cryo-EM表征电子束或空气敏感型材料,例如锂离子电池中的电极、金属有机框架(MOFs)、共价有机框架(cofs)和沸石.此外,在cryo-EM中,反应体系可在玻璃冰状态快速冻结,从而保存材料的近初始状态.在此,我们回顾了cryo-EM和其他新兴冷冻技术的发展及其在材料科学、能源存储与转换等领域的应用.Cryo-EM技术能够直观地观察敏感材料和电催化反应过程,将极大地革新学界对材料科学及其相关机制的理解.

关键词：材料科学家诺贝尔化学奖电催化反应冷冻电镜冷冻技术辐照损伤 cof 结构生物学

Assemblies of covalent organic framework microcrystals:multiple-dimensional manipulation for enhanced applications

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Science China Chemistry 2018年第2期61卷 143-152页

作者： Fuyu Yuan Jing Tan Jia Guo State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science Fudan University

Covalent organic frameworks (cofs) are well known as the next generation of shape-persistent zeolite analogues, which have brought new impetus to the development of porous organic materials as well as two-dimensional polymers. Since the advent of cofs in 2005, many striking findings have definitely proven their great potentials expanding applications across energy,environment and healthcare fields. With thorough exploration over a decade, research interest has been drawn on the scientific challenges on chemistry, while making full play of cof values has remained far from satisfactory yet. Thus opening an avenue to modulating cof assemblies on the multi-scale is no longer just an option, but a necessity for matching the application requirements with enhanced performances. In this mini-review, we summarize the recent progress on design of nanoscale cofs with varying forms. Detailed description is concentrated on the synthetic strategies of cof assemblies such as spheres, fibers,tubes, coatings and films, thereby shedding light on the flexible manipulation over dimensions, compositions and morphologies.Meanwhile, the advanced applications of nanoscale cofs have been discussed here with comparison of their bulky counterparts.

关键词：应用程序器官框架原子操作 cof 调查结果类似物

Covalent organic framework nanoparticles for anti-tumor gene therapy

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Science China Chemistry 2021年第7期64卷 1235-1241页

作者： Kai Hao Zhaopei Guo Lin Lin Pingjie Sun Yanhui Li Huayu Tian Xuesi Chen Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China University of Science and Technology of China Hefei 230026China School of Materials Science and Engineering Changchun University of Science and TechnologyChangchun 130022China Jilin Biomedical Polymers Engineering Laboratory Changchun 130022China

Covalent organic framework(cof)materials have great development value in the biomedical field.However,the huge size and poor dispersion of cof materials severely limit their application.Here we successfully prepared cof nanoparticles with uniform size and good dispersion under the assistance of microwave.By adding some cationic polymers or small amine molecules,the dispersibility of cof could be further improved and its surface charge also increased.The prepared cationic cof nanoparticles(CLZU NPs)had excellent gene transfection ability and good biocompatibility.Designing low-toxic and highefficiency gene carrier is an important mission in the field of gene therapy.This cof-based gene vector provides a new direction for gene carrier design.

关键词： cof cationic gene therapy

MORPHOLOGICAL AND FUNCTIONAL INVESTIGATIONS ON MACROPHAGES WITH HETEROGENEOUS FLUORESCENT STAINING

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Science in China,Ser.B 1985年第7期28卷 707-716页

作者：许屏高玉民李淑莲王宜 Department of Histology and Embryology Bethune Medical College Changchun

Four heterogeneous colors of fluorescence were demonstrated in macrophages from rabbit lymph nodes and mouse peritoneal exudate using fluorescent staining. They were bright blue, light blue, bluish green and yellow colors of fluorescence respectively. All of these 4 types of macrophages with heterogeneous colors of fluorescence could form EA or EAC rosettes and were able to phagocytose chicken erythrocytes and ink carbon granules. Among them the macrophages with bright blue color of fluorescence could form large EA or EAC rosettes and showed more rapid and stronger activity to phagocytose chicken erythrocytes, while those with bluish green and yellow colors of fluorescence showed stronger activity to phagocytose ink carbon granules.

关键词： cof MORPHOLOGICAL AND FUNCTIONAL INVESTIGATIONS ON MACROPHAGES WITH HETEROGENEOUS FLUORESCENT STAINING SRBC

Donor-acceptor type[4+3]covalent organic frameworks:sub-stoichiometric synthesis and photocatalytic application

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Science China Chemistry 2020年第5期63卷 707-714页

作者： Qiaobo Liao Wentao Xu Xin Huang Can Ke Qi Zhang Kai Xi Jin Xie State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Three unprecedented 2 D[4+3]covalent organic frameworks(TTcof-1,TTcof-2,and TTcof-3)have been prepared by substoichiometric condensation of tetratopic and tritopic monomers,overcoming the limitations of the design rules of conventional topologies.By reticulating the tetraphenylethylene(TPE)-based and triazine-based moieties into cof frameworks,novel electron donor-acceptor(D-A)type structures were obtained.These TTcofs have good photocatalytic activity in aerobic C(sp3)–H bond functionalization and arylboronic acid oxidation driven by visible light,with yields up to 94%.This can expedite possibilities of cofs with new structural and topological complexities and can also expand the application of cof-based photocatalysis in synthetic chemistry.

关键词： cof sub-stoichiometric synthesis crystal engineering photocatalysis aerobic oxidation