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Tunable Multicolor Circularly Polarized Luminescence via Co-assembly of One Chiral Electron Acceptor with Various Donors

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CCS Chemistry 2023年第7期5卷 1592-1601页

作者： Fang Wang Chengshuo Shen Fuwei Gan Guoli Zhang Huibin Qiu School of Chemistry and Chemical Engineering Zhangjiang Institute for Advanced StudyFrontiers Science Center for Transformative MoleculesState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong UniversityShanghai 200240 Key Laboratory of Specially Functional Polymeric Materials and Related Technology(Ministry of Education) School of Material Science and EngineeringEast China University of Science and TechnologyShanghai 200237

Chiroptical materials with multicolor and signinvertible circularly polarized luminescence(CPL)are important for advanced optical devices and display ***,a general strategy is developed to generate CPL with highly tunable emission bands and handedness through charge-transfer(CT)complexation and co-assembly of one chiral non-emissive tetranitrofluorene-based acceptor with various achiral purple to blue emissive *** resulting assemblies exhibit intense CPL with a rich array of colors(519-668 nm)and prominent dissymmetry factors(|glum|)in the range of 10^(-3)-10^(-2).Notably,the CPL sign can be readily inverted by slightly changing the molecular structure of achiral ***-crystal analysis reveals that the donor and acceptor molecules are alternately and asymmetrically packed in a lamellar fashion through CT interactions,leading to efficient transfer of ***,the refined packing is mediated by the intensity and manner of CT interactions,rendering an inversion of *** chiral co-assembly not only occurs for planar achiral donor molecules,but is also accessible to nonplanar conjugated molecules such as[4]helicene ***,the CPL feature of the resulting products can be easily and broadly manipulated,aiming at advanced chiroptical systems.

关键词： circularly polarized luminescence charge transfer chirality co-assembly supramolecular chemistry

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Realizing high thermoelectric performance via selective resonant doping in oxyselenide BiCuSeO

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Nano Research 2023年第1期16卷 1679-1687页

作者： Yue-Xing Chen Wenning Qin Adil Mansoor Adeel Abbas Fu Li Guang-xing Liang Ping Fan Muhammad Usman Muzaffar Bushra Jabar Zhen-hua Ge Zhuang-hao Zheng F1 Shenzhen Key Laboratory of Advanced Thin Films and Applications Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China Faculty of Materials and Manufacturing Beijing University of TechnologyBeijing 100124China International Center for Quantum Design of Functional Materials(ICQD) Hefei National Laboratory for Physical Sciences at Microscale(HFNL)and CAS Center for Excellence in Quantum Information and Quantum PhysicsUniversity of Science and Technology of ChinaHefei 230026China Faculty of Materials Science and Engineering Kunming University of Science and TechnologyKunming 650093China

Tuning the charge carrier concentration is imperative to optimize the thermoelectric(TE)performance of a *** BiCuSeO based oxyselenides,doping efforts have been limited to optimizing the carrier *** the present work,dual-doping of In and Pb at Bi site is introduced for p-type BiCuSeO to realize the electric transport channels with intricate band characteristics to improve the power factor(PF).Herein,the impurity resonant state is realized via doping of resonant dopant In over Pb,where Pb comes forward to optimize the Fermi energy in the dual-doped BiCuSeO system to divulge the significance of complex electronic *** manifold roles of dual-doping are used to adjust the elevation of the PF due to the significant enhancement in electrical ***,the combined experimental and theoretical study shows that the In/Pb dual doping at Bi sites gently reduces bandgap,introduces resonant doping states with shifting down the Fermi level into valence band(VB)with a larger density of state,and thus causes to increase the carrier concentration and effective mass(m*),which are favorable to enhance the electronic transport *** a result,both improved ZTmax=0.87(at 873 K)and high ZTave=0.5(at 300–873 K)are realized for InyBi(1−x)−yPbxCuSeO(where x=0.06 and y=0.04)*** obtained results successfully demonstrate the effectiveness of the selective dual doping with resonant dopant inducing band manipulation and carrier engineering that can unlock new prospects to develop high TE materials.

关键词： thermoelectric material BiCuSeO dual-doping power factor figure of merit

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Ascorbic acid derived carbon dots promote circadian rhythm and contribute to attention deficit hyperactivity disorder

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Nano Research 2022年第9期15卷 8247-8254页

作者： Jian Huang Yun Wang Zhaomin Zhong Yurong Ma Keru Deng Changhong Liu Hui Huang Yang Liu Xin Ding Zhenhui Kang School of Biology&Basic Medical Science Soochow UniversitySuzhou 215123China Institute of Functional Nano and Soft Materials Laboratory(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesSoochow UniversitySuzhou 215123China Division of Neonatology Children’s Hospital of Soochow UniversitySuzhou 215003China Macao Institute of Materials Science and Engineering(MIMSE) MUST-SUDA Joint Research Center for Advanced Functional MaterialsMacao University of Science and TechnologyTaipa 999078MacaoChina

Attention deficit hyperactivity disorder(ADHD)is one of the most prevalent psychiatric disorders in children,and ADHD patients always display circadian ***,the ADHD drugs currently used in clinic have strong side effects,such as psychosis,allergic reactions,and heart ***,we demonstrated carbon dots derived from the ascorbic acid(VCDs)could strongly rescue the hyperactive and impulsive behaviour of a zebrafish ADHD disease model caused by per1b *** prolonged the circadian period of zebrafish for more than half an *** addition,the amplitude and circadian phase were also *** dopamine level was specifically increased,which may be caused by stimulation of the dopaminergic neuron development in the ***,it was found that the serotonin level was not altered by VCDs ***,the gene transcriptome effects of VCDs were discussed in present *** results provided the dynamic interactions of carbon dots with circadian system and dopamine signaling pathway,which illustrates a potential application of degradable and bio-safe VCDs for the treatment of the attention deficient and hyperactive disorder through circadian intervention.

关键词： carbon dots circadian rhythm dopamine attention deficit hyperactivity disorder(ADHD) zebrafish

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Femtosecond laser 3D nanoprinting using inorganic nano-building blocks

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The Innovation 2025年第3期6卷 3-4页

作者： Yi-Ke Sun Yu-Qing Liu Qi-Dai Chen Yong-Lai Zhang State Key Laboratory of Integrated Optoelectronics College of Electronic Science and EngineeringJilin UniversityChangchun 130012China Center for Advanced Optoelectronic Functional Materials Research Key Laboratory for UV Emitting Materials and Technology of Ministry of EducationNational Demonstration Center for Experimental Physics EducationNortheast Normal UniversityChangchun 130024China

Since the 1990s,femtosecond laser two-photon absorption(TPA),which enables point-by-point photopolymerization,has been a tool for making threedimensional(3D)*** 10 years later,Kawata et *** the spatial resolution of TPA fabrication to120 nm,far beyond the diffraction limit of the 780 nm laser source.1 The essential mechanism of this nanoscale fabrication lies in the nonlinear effect,in which TPA-induced photopolymerization occurs only in the vicinity of the focal spot.

关键词： nonlinear effectin two photon absorption nonlinear effect femtosecond laser photopolymerization inorganic nano building blocks nanoscale fabrication

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Intrinsically stretchable light-emitting drawing displays

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npj Flexible Electronics 2024年第1期8卷 949-956页

作者： Jiaxue Zhang Qianying Lu Ming Wu Yuping Sun Shaolei Wang Xiaoliang Wang Ming-Hui Lu Desheng Kong College of Engineering and Applied Sciences National Laboratory of Solid State Microstructureand Collaborative Innovation Center of Advanced MicrostructuresNanjing 210093China Jiangsu Key Laboratory of Artificial Functional Materials Nanjing UniversityNanjing 210023China State Key Laboratory of Analytical Chemistry for Life Science Nanjing UniversityNanjing 210023China Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education Department of Polymer Science and EngineeringSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Stretchable displays that combine light-emitting capabilities with mechanical compliance are essential building blocks of nextgeneration wearable ***,their widespread applications are currently limited by complex device architecture,limited pixel density,and immature fabrication *** this study,we present the device design and material developments of intrinsically stretchable light-emitting drawing displays that can show arbitrary hand-drawing *** alternating-current electroluminescent display uses a simplified architecture comprising coplanar interdigitated liquid metal electrodes,an electroluminescent layer,and a dielectric encapsulation *** patterns on the device are coupled with the interdigitated electrodes under alternating voltage stimulations,generating localized electric fields for bright *** inks are prepared for painting,stamping,and stencil *** luminous features on the devices can be either long-lasting or transient in *** skin-like devices are made entirely of compliant materials that can withstand bending,twisting,and stretching *** to the excellent mechanical deformability,the drawing displays can be conformally laminated on the skin as body-integrated optoelectronic communication devices for graphic information.

关键词： light luminous stretching

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High Fluorescence Porous Organic Cage for Sensing Divalent Palladium Ion and Encapsulating Fine Palladium Nanoparticles

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Chinese Journal of Chemistry 2022年第3期40卷 385-391页

作者： Huimin Ren Chao Liu Xu Ding Xianzhang Fu Hailong Wang Jianzhuang Jiang Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline MaterialsDepartment of Chemistry and Chemical EngineeringSchool of Chemistry and Biological EngineeringUniversity of Science and Technology BeijingBeijing 100083China

Porous organic cages(POCs)as an innovative type of porous molecular materials enable multifunctional ***,a fluorescence POC(denoted as 1)has been constructed by means of 5/5'-((2/5-dimethoxy-l/4-phenylene)bis(ethyne-2/1-diyl))diiso-phthalaldehyde condensing with cyclohexanediamine enantiomer with the aid of trifluoroacetic acid.1 exhibits the permanent void and prominent fluorescence with relative quantum yield of 73%confirmed by gas sorption and emission experiments,***,this organic cage is capable of sensing diavalent Pd2+according to the fluorescence response to the addition of various metal *** dispersion of 1 in methanol containing palladium acetate was stirred at 25℃and then 80℃to reduce Pd2+ions into nanoparticles(NPs),leading to the composite(Pd@l)composed of fine Pd NPs with the size of co.1.8 *** catalytic nature of Pd@l over NaBH4 promoted the degeneration of nitrobenzene and congo *** work introduces one new case of POCs with versatile properties and functions,including ion fluorescence recognition,fine Pd NPs stabilizer,and gas adsorption,enriching the family of POC-based materials.

关键词： Catalysis Fluorescence recognition Nanoparticles Cage compounds Palladium

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Si Doping-Induced Electronic Structure Regulation of Single-Atom Fe Sites for Boosted CO_(2) Electroreduction at Low Overpotentials

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Research 2023年第4期2023卷 307-319页

作者： Changsheng Cao Shenghua Zhou Shouwei Zuo Huabin Zhang Bo Chen Junheng Huang Xin-Tao Wu Qiang Xu Qi-Long Zhu State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou350002China University of Chinese Academy of Science Beijing100049China KAUST Catalysis Center(KCC) King Abdullah University of Science and Technology(KAUST)Thuwal23955-6900Saudi Arabia Department of Chemistry City University of Hong KongHong Kong999077China CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Provincial Key Laboratory of NanomaterialsFujianInstitute of Research on the Structure of MatterChinese Academy of SciencesFuzhou350002China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou350108China Institute for Integrated CellMaterial Sciences(iCeMS) Kyoto UniversityKyoto 606-8501Japan Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials(SKLPM) SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory(SKAEM-JIL)and Department of Materials Science and EngineeringSouthern University of Science and Technology(SUSTech)Shenzhen518055China

Transition metal-based single-atom catalysts(TM-SACs)are promising alternatives to Au-and Ag-based electrocatalysts for CO production through CO_(2)reduction ***,developing TM-SACs with high activity and selectivity at low overpotentials is ***,a novel Fe-based SAC with Si doping(Fe-N-C-Si)was prepared,which shows a record-high electrocatalytic performance toward the CO_(2)-to-CO conversion with exceptional current density(>350.0 mA cm^(−2))and~100%Faradaic efficiency(FE)at the overpotential of<400 mV,far superior to the reported Fe-based *** assembling Fe-N-C-Si as the cathode in a rechargeable Zn-CO_(2)battery delivers an outstanding performance with a maximal power density of 2.44 mW cm^(−2)at an output voltage of 0.30 V,as well as high cycling stability and FE(>90%)for CO *** combined with theoretical analysis unraveled that the nearby Si dopants in the form of Si-C/N bonds modulate the electronic structure of the atomic Fe sites in Fe-N-C-Si to markedly accelerate the key pathway involving^(*)CO intermediate desorption,inhibiting the poisoning of the Fe sites under high CO coverage and thus boosting the CO_(2)RR *** work provides an efficient strategy to tune the adsorption/desorption behaviors of intermediates on singleatom sites to improve their electrocatalytic performance.

关键词： desorption bonds exceptional

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Regulating solid electrolyte interphases on phosphorus/carbon anodes via localized high-concentration electrolytes for potassium-ion batteries

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Journal of Energy Chemistry 2023年第3期78卷 589-605,I0016页

作者： Wei Xiao Peiyi Shi Zhengkui Li Chong Xie Jian Qin Huijuan Yang Jingjing Wang Wenbin Li Jiujun Zhang Xifei Li Key Laboratory of Advanced Batteries Materials for Electric Vehicles of China Petroleum and Chemical Industry Federation Institute of Advanced Electrochemical Energy&School of Materials Science and EngineeringXi’an University of TechnologyXi’an 710048ShaanxiChina Engineering Research Center of Conducting Materials and Composite Technology Ministry of EducationXi’an 710048ShaanxiChina School of Materials Science and Engineering Fuzhou UniversityFuzhou 350108FujianChina Center for International Cooperation on Designer Low-carbon&Environmental Materials(CDLCEM) Zhengzhou UniversityZhengzhou 450001HenanChina

The resourceful and inexpensive red phosphorus has emerged as a promising anode material of potassium-ion batteries(PIBs) for its large theoretical capacities and low redox potentials in the multielectron alloying/dealloying reactions,yet chronically suffering from the huge volume expansion/shrinkage with a sluggish reaction kinetics and an unsatisfactory interfacial stability against volatile ***,we systematically developed a series of localized high-concentration electrolytes(LHCE) through diluting high-concentration ether electrolytes with a non-solvating fluorinated ether to regulate the formation/evolution of solid electrolyte interphases(SEI) on phosphorus/carbon(P/C) anodes for *** from the improved mechanical strength and structural stability of a robust/uniform SEI thin layer derived from a composition-optimized LHCE featured with a unique solvation structure and a superior K+migration capability,the P/C anode with noticeable pseudocapacitive behaviors could achieve a large reversible capacity of 760 mA h g^(-1)at 100 mA g^(-1),a remarkable capacity retention rate of 92.6% over 200 cycles at 800 mA g^(-1),and an exceptional rate capability of 334 mA h g^(-1)at8000 mA g^(-1).Critically,a suppressed reduction of ether solvents with a preferential decomposition of potassium salts in anion-derived interfacial reactions on P/C anode for LHCE could enable a rational construction of an outer organic-rich and inner inorganic-dominant SEI thin film with remarkable mechanical strength/flexibility to buffer huge volume variations and abundant K+diffusion channels to accelerate reaction ***,the highly reversible/durable full PIBs coupling P/C anodes with annealed organic cathodes further verified an excellent practical applicability of *** encouraging work on electrolytes regulating SEI formation/evolution would advance the development of P/C anodes for high-performance PIBs.

关键词： Potassium-ion batteries Phosphorus/carbon anodes Localized high-concentration electrolytes Solid electrolyte interphases Interfacial stability

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Talcum-doped composite separator with superior wettability and heatproof properties for high-rate lithium metal batteries

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Chinese Chemical Letters 2023年第1期34卷 139-144页

作者： Mengqiu Yang Yuanpeng Ji Yunfa Dong Botao Yuan Liwei Dong Yuanpeng Liu Sue Hao Chunhui Yang Xiaoqiang Wu Qingquan Kong Jiecai Han Weidong He MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150080China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments and Center for Composite Materials and StructuresHarbin Institute of TechnologyHarbin 150080China State Key Laboratory of Urban Water Resource and Environment Harbin Institute of TechnologyHarbin 150080China School of Mechanical Engineering Chengdu UniversityChengdu 610106China Chongqing Research Institute Harbin Institute of TechnologyChongqing 401151China

Separator is supposed to own outstanding thermal stability,superior wettability and electrolyte uptake,which is essential for developing high-rate and safe lithium metal batteries(LMBs).However,commercial polyolefin separators possess poor wettability and limited electrolyte *** addressing this issue,we put forward a composite separator to implement above functions by doping layered-silicate(talcum)into polyvinylidene fluoride(PVDF).With significant improvement of electrolyte absorption benefiting from the strong adsorption energy values(-1.64-1.70 eV)between talcum and the electrolyte in lithium metal batteries,PVDF/Talcum(PVDF/TM)composite separator owns a small contact angle and superior electrolyte ***/TM composite separator with 10 wt%talcum(T-10)owns a tiny contact angle of 8°,while those of polypropylene(PP)and PVDF are 48°and 20°with commercial ***,the addition of thermotolerant talcum endows the T-10 composite separator with great thermostability,whose thermal shrinkage is only 5.39%at 150°C for 0.5 *** cell with LiFeO4cathode and the T-10 composite separator reaches 91.7 m Ah/g in discharge capacity at 4.8 m A/cm^(2)(10 C),far superior to that with pure PVDF separator(56.3 m Ah/g)and PP(51.4 m Ah/g).

关键词： Lithium metal batteries composite separator PVDF Talcum Wettability Thermal stability

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Structural parameters and molecular model of Shendong subbituminous coal

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Chinese Journal of Chemical Engineering 2024年第12期76卷 124-134页

作者： Xiaoping Su Ning Li Longjian Li Reyila Tuerhong Yongchong Yu Ping Zhang Qiong Su Tao Shen Ming Sun Xiaoxun Ma Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission Gansu Provincial Biomass Function Composites Engineering Research CenterKey Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu ProvinceGansu Province Research Center for Basic Sciences of Surface and Interface ChemistryCollege of Chemical EngineeringNorthwest Minzu UniversityLanzhou 730124China School of Chemical Engineering Northwest UniversityInternational Science&Technology Cooperation Base of MOST for Clean Utilization of Hydrocarbon ResourcesChemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei EnergyShaanxi Research Center of Engineering Technology for Clean Coal ConversionCollaborative Innovation Center for Development of Energy and Chemical Industry in Northern ShaanxiXi'an 710069China

Coal has a highly complex chemical structure,similar to polymers,coal is a macromolecular structure composed of a large number of“similar compounds”,which is called the basic structural *** coal structure is the basis of its transformation and ***(SD)coal was analyzed by FTIR,XRD,XPS,and *** results show that SD coal normalized structure formula is C_(100)H_(68.5)O_(35.7)N_(1.2)S_(0.2)and the average number of aromatic rings is 1.98.-CH_(2)-content accounts for about 82%in aliphatic CeH region,and the ratio of ether bond CeO,aromatic ether C-O and C=O is about 2:1:11 in oxygen-containing functional group *** d_(002),L_(C),L_(a)and N_(C)of S_(D)coal microcrystalline structure parameters are 0.1832 nm,1.4688 nm,2.0852 nm and 9.017,*** carbon and aliphatic carbon ratios of SD coal are 55.67%and 29.97%,aromatic cluster size and average methylene chain length are 0.224 and *** on these structural parameters,molecular model of SD coal was constructed with^(13)C SSNMR experimental spectra as a *** model was constructed with an atom composition of C_(214)H_(214)O_(49)N_(2)S.

关键词： Subbituminous coal Structural parameters ^(13)C CP/MAS SSNMR Molecular model

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