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Synthesis,structure and property of one porous Zn(salen)-based metal-metallosalen framework

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Science China Chemistry 2014年第1期57卷 107-113页

作者： PENG YongWu zhu chengfeng CUI Yong State Key Laboratory of Metal Matrix Composites School of Chemistry and Chemical Engineering Shanghai Jiao Tong University School of Chemical Engineering Hefei University of Technology

Chiral Schiff-base ligand L was synthesized through six steps in good overall yield from readily available 2-tert-butylphenol and was used to construct one chiral porous metal-metallosalen framework,[Zn5(μ3-OH)2(ZnL)4(H2O)2]·18H2O(1,L=5′,5″-(1E,1′E)-(1R,2R)-cyclohexane-1,2-diylbis(azan-1-yl-1-ylidene)bis(methan-1-yl-1-ylidene)bis(3′-tert-butyl-4′-hydroxybiphenyl-4-carboxylic acid),under mild reaction conditions.1 was characterized by IR,TGA,CD,UV,PL,single-crystal and powder X-ray *** structure of 1 displays a 3-fold interpenetrating 3D framework with 1D channel of 1.14 nm×0.58nm and imparts unique Zn(salen)units on the surface of the pore,in which(ZnL)2dimer acts as multi-functionlized metalloligand.1 is thermally robust with network decomposition temperature of 400oC and it also exhibits strong photoluminescence in the visible region.

关键词： Schiff-base,metal-metallosalen framework,photoluminescence

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一种手性多孔配位物的合成、结构及性能研究

合肥工业大学学报（自然科学版） 2024年第7期47卷 952-956页

作者：朱成峰胡圆圆张阿美祝燕青邓宁李有桂合肥工业大学化学与化工学院安徽合肥230009

文章以L-苯丙氨酸甲酯和萘-1,5-二磺酰氯为起始原料,合成一种C 2对称性的手性桥联配体L-H 2;继而与锌离子通过溶剂热技术制备一种荧光性的多孔手性配合物1,其晶体结构通过单晶X-射线衍射(X-ray diffraction,XRD)、傅里叶变换红外光谱仪(... 详细信息

文章以L-苯丙氨酸甲酯和萘-1,5-二磺酰氯为起始原料,合成一种C 2对称性的手性桥联配体L-H 2;继而与锌离子通过溶剂热技术制备一种荧光性的多孔手性配合物1,其晶体结构通过单晶X-射线衍射(X-ray diffraction,XRD)、傅里叶变换红外光谱仪(Fouier transform infrared spectrometer,FTIR)和荧光光谱等技术进行表征。手性吸附实验证明,手性配合物1能够有效地拆分外消旋的氧化苯乙烯,获得对映体过量值为66%的氧化苯乙烯;荧光传感实验结果表明,手性配合物1能够有效区分氧化苯乙烯的2种异构体,其荧光更容易被R构型的氧化苯乙烯对映异构体所淬灭,被淬灭程度达到60%。

关键词：手性拆分配合物氧化苯乙烯荧光传感

Synthesis,structure and photoluminescence of two porous metal-organoboron frameworks with rtl topology

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Science China Chemistry 2011年第9期54卷 1430-1435页

作者： LIU Yan XU Xin XUAN WeiMin zhu chengfeng CUI Yong State Key Laboratory of Metal Matrix Composites School of Chemistry and Chemical TechnologyShanghai Jiao Tong UniversityShanghai 200240China

Rigid trigonal tris(3-pyridylduryl)borane L was synthesized through four steps in good overall yield from readily available 1,2,4,5-tetramethylbenzene and was used to construct two porous cadmium(II) complexes Cd(L)X2.G(X = Cl,Br;G = guset molecules),1(Cd(L)***.3H2O) and 2(Cd(L)***.C7H8.3H2O),under mild reaction conditions.1 and 2 are isostructural and featured with 3D porous metal-organoboron framewoks with rtl topology,in which L acts as a 3-connected node while a dicadmium motif serves as 6-connected *** addition,1 and 2 exhibit strong photoluminescence in the visible region and 1 shows moderate adsorption ability of carbon dioxide at 273 K.

关键词： boron metal-organic frameworks coordination polymer photoluminescence

CoNi nanoparticles anchored inside carbon nanotube networks by transient heating:Low loading and high activity for oxygen reduction and evolution

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Journal of Energy Chemistry 2021年第3期30卷 63-71页

作者： chengfeng zhu Wei Yang Jiangtao Di Sha Zeng Jian Qiao Xiaona Wang Bo Lv Qingwen Li Key Laboratory of Multifunctional Nanomaterials and Smart Systems Advanced Materials Division.Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123JiangsuChina School of Nano-Tech and Nano-Bionics University of Science and Technology of ChinaHefei 230026AnhuiChina Division of Nanomaterials Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesNanchang 330200JiangxiChina School of Materials Science and Engineering and Key Laboratory of Aerospace Materials and Performance Ministry of EducationBeihang UniversityBeijing 100083China

Transitional metal alloy and compounds have been developed as the low cost and efficient bifunctional electrocatalysts for oxygen reduction reaction(ORR)and oxygen evolution reaction(OER).However,a high mass loading of these catalysts is commonly needed to achieve acceptable catalytic performance,which could cause such problems as battery weight gain,mass transport blocking,and catalyst *** report herein the preparation of fine CoNi nanoparticles(5-6 nm)anchored inside a nitrogendoped defective carbon nanotube network(CoNi@N-DCNT)by a transient Joule heating *** utilized as an electrocatalyst for oxygen reduction and evolution in alkaline media,the CoNi@N-DCNT film catalyst with a very low mass loading of 0.06 mg cm^(-2) showed excellent bifunctional catalytic *** ORR,the onset potential(Eonset)and the half-wave potential(E_(1/2))were 0.92 V versus reversible hydrogen electrode(***)and 0.83 V(***),*** OER,the potential at the current density(J)of 10 mA cm^(-2)(E_(10))was 1.53 V,resulting in an overpotential of 300 mV much lower than that of the commercial RuO_(2) catalyst(320 mV).The potential gap between E_(1/2) and E_(10) was as small as 0.7 *** the low mass loading,the mass activity at E_(10) reached at 123.2 A g^(-1),much larger than that of the RuO_(2) catalyst and literature results of transitional metal-based bifunctional ***,the CoNi@N-DCNT film catalyst showed very good long-term stability during the ORR and OER *** excellent bifunctional catalytic performance could be attributed to the synergistic effect of the bimetal alloy.

关键词： Transient Joule heating method Carbon nanotubes Nano alloy Low loading Bifunctional catalyst

In-situ emb e dding zeolitic imidazolate framework derived Co–N–C bifunctional catalysts in carbon nanotube networks for flexible Zn–air batteries

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Journal of Energy Chemistry 2019年第11期28卷 170-176页

作者： Bo Lv Sha Zeng Wei Yang Jian Qiao Chao Zhang chengfeng zhu Minghai Chen Jiangtao Di Qingwen Li School of Nano-Technology and Nano-Bionics University of Science and Technology of ChinaHefei 230026AnhuiChina Key Laboratory of Multifunctional Nanomaterials and Smart Systems Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123JiangsuChina

Recently, the development of high-performance bifunctional oxygen catalysts integrated with flexible conductive scaffolds f or rechargeable metal-air batteries has attracted considerable interest, driving by fastgrowing wearable electronics. Herein, we report a flexible bifunctional oxygen catalyst thin film consisting of Co–N–C bifunctional catalysts embedding in carbon nanotube(CNT) networks. The catalyst is readily prepared by pyrolysis of cobalt-based zeolitic imidazolate frameworks(ZIF-67) that are in-situ synthesized in CNT networks. Such catalyst film demonstrates very high catalytic activities for oxygen reduction(onset potential: 0.91 V, and half-wave potential: 0.87 V vs. RHE) and oxygen evolution(10 m Acm^-2 at 1.58 V) reactions, high methanol tolerance property, and long-term stability(97% current retention). Moreover, our integrated catalyst film shows very good structure flexibility and robustness. Based on the obtained film air electrodes, flexible Zn–air batteries demonstrate low charging and discharging overpotentials(0.82 V at 1 m A cm^-1) and excellent structure stability in the bending tests. These results indicate that presently reported catalyst films are potential air electrodes for flexible metal–air batteries.

关键词： Air electrodes Carbon nanotube films Bifunctional catalysts Zn-air batteries Zeolitic imidazolate framework

High-performance carbon nanotube/polyaniline artificial yarn muscles working in biocompatible environments

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Nano Research 2023年第3期16卷 4143-4151页

作者： Jian Qiao Yulong Wu chengfeng zhu Lizhong Dong Kunjie Wu Yulian Wang Wei Yang Min Li Jiangtao Di Qingwen Li Key Laboratory of Multifunctional Nanomaterials and Smart Systems Advanced Materials DivisionSuzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China State Key Laboratory of Advanced Power Transmission Technology State Grid Smart Grid Research Institute Co.Ltd.Beijing 102209China School of Materials Science and Engineering Key Laboratory of Aerospace Materials and PerformanceMinistry of EducationBeihang UniversityBeijing 100191China

Implantable artificial muscles are of great importance for muscle function restoration and physical augmentation but are still ***,we report an artificial muscle by soaking-polymerization of polyaniline(PANI)inside a carbon nanotube(CNT)*** in aqueous biocompatible solutions,the yarn muscle generates a large contractile stroke of 17%and high isometric stress of 8 MPa at voltages lower than 2 *** excellent performance can be ascribed to the large actuation volume that is enabled by the fast electrochemical redox of PANI confined in a coiled yarn *** actuation performance outperforms that of previously reported aqueous artificial yarn ***,the yarn muscle can work well and maintain excellent actuating performance in other biocompatible solutions such as normal saline and Na2SO4 aqueous solution,which makes the CNT/PANI yarn muscles suitable for implantable bionic ***,a biomimetic arm was fabricated to demonstrate the applications of the CNT/PANI yarn artificial muscle in implantable muscle,underwater robots,and soft exoskeletons.

关键词： carbon nanotube polyaniline biocompatible implantable artificial muscle

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柔性超导电路制备工艺技术研究

计量学报 2024年第7期45卷 929-934页

作者：朱承峰李万陈建孙潇莹曾九孙蔡晋辉王振宇李劲劲王雪深中国计量大学计量测试工程学院浙江杭州310018 四川大学物理学院四川成都610065 中国计量科学研究院北京102200 济南量子技术研究院山东济南250101

超导转变边沿探测器是坎德拉单位量子化复现和单能X射线量子计量的核心器件。大规模超导转变边沿探测器阵列探头的信号读出需利用柔性超导电路将信号传输至探头侧面的超导量子干涉器件。柔性超导电路是将超导信号线制备在柔性聚酰亚胺... 详细信息

超导转变边沿探测器是坎德拉单位量子化复现和单能X射线量子计量的核心器件。大规模超导转变边沿探测器阵列探头的信号读出需利用柔性超导电路将信号传输至探头侧面的超导量子干涉器件。柔性超导电路是将超导信号线制备在柔性聚酰亚胺衬底上以实现信号低热导率、无阻传输。以硅片作为临时支撑,电子束蒸发100 nm Cr膜作为剥离牺牲层。非光敏聚酰胺酸旋涂在Cr膜上固化后,通过紫外曝光、溅射薄膜沉积和剥离等工艺制备Nb/Al薄膜传输线结构,利用Cr膜高应力特性将聚酰亚胺薄膜从硅片上剥离,湿法腐蚀Cr膜完成柔性超导电路的制备。测试的40根Nb/Al传输线的超导转变温度T_(c)为8.91~9.02 K,剩余电阻比r_(RR)为5.83~6.96。温度为8 K时,38根传输线临界电流I_(c)超过1 mA;温度为4.2 K时,所有样品I_(c)均超过1 mA,其中有25根传输线I_(c)超过10 mA,满足超导转变边沿探测器阵列测试需求。

关键词：电学计量超导转变边沿探测器聚酰亚胺柔性超导电路超导转变温度临界电流

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Collaborative Tracking Method in Multi-Camera System

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Journal of Shanghai Jiaotong university(Science) 2020年第6期25卷 802-810页

作者： ZHOU Zhipeng YIN Dong DING Jinwen LUO Yuhao YUAN Mingyue zhu chengfeng School of Information Science and Technology University of Science and Technology of ChinaHefei 230027China Key Laboratory of Electromagnetic Space Information Chinese Academy of SciencesHefei 230027China Department of Material Science and Engineering U niversity of Science and Technology of ChinaHefei 230026China

Visual tracking has been a popular task in computer vision in recent years,especially for long-term tracking.A novel object tracking framework is proposed in this *** surveillance cameras with overlapping areas,the target area is divided into several regions corresponding to each camera,and a simple re-matching method is used by matching the colors according to the segmented *** surveillance cameras without overlapping areas,a time estimation model is employed for continuously tracking objects in different fields of view(FoVs).A demonstration system for collaborative tracking in real time situation is realized *** experimental results show that compared with current popular algorithms,the proposed approach has good effect in accuracy and computation time for the application of continuously tracking the pedestrians.

关键词： multi-camera systemn surveillance video visual tracking re-matching

基于OBE理念的大学生创新实践能力的培养——以合肥工业大学应用化学专业为例

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大学化学 2024年第2期39卷 280-285页

作者：吴祥朱成峰李芳李冰付延明程岚军李有桂合肥工业大学化学与化工学院合肥230009

基于成果导向教育(OBE)理念,遵循成果导向教育思路,围绕学生创新实践能力的培养,制定特色鲜明的合肥工业大学应用化学专业人才培养方案,即加强“双师型”师资队伍、搭建创新实践能力的培养与专业教育相结合的“科教、赛教、企教”创新... 详细信息

基于成果导向教育(OBE)理念,遵循成果导向教育思路,围绕学生创新实践能力的培养,制定特色鲜明的合肥工业大学应用化学专业人才培养方案,即加强“双师型”师资队伍、搭建创新实践能力的培养与专业教育相结合的“科教、赛教、企教”创新实践平台、建立强化过程考核为导向的教学评价模式。应用化学专业的实践探索对培养具有创新意识和实践能力的复合型人才具有很好的参考价值。

关键词：成果导向教育大学生创新实践能力应用化学

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