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Journal of Energy Chemistry 2021年第8期30卷 220-228,I0005页

作者： tianli wu Ting Yang Jizong Zhang Xuewen Zheng Kunlin Liu Chengyang Wang Mingming Chen Key Laboratory for Green Chemical Technology of MOE School of Chemical Engineering and TechnologyTianjin University300072 TianjinChina Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) 300072 TianjinChina

Lithium-sulfur(Li-S)batteries are hampered by the infamous shuttle effect and slow redox kinetics,resulting in rapid capacity ***,a bifunctional catalysis CoB/BN@rGO with integrated structure and synergy effect between adsorption and catalysis is proposed to solve the above *** integrated CoB and BN are simultaneously and uniformly introduced on the rGO substrate through a one-step calcination strategy,applied to modify the cathode side of PP *** transition metal borides can catalyze the conversion of lithium polysulfides(Li_(2)Sn,n≥4),whereas the bond of B-S is too weak to absorb *** BN introduced can effectively restrict the diffusion of polysulfides via strong chemisorption with LiSnLi+…N,while the rGO substrate ensures smooth electron transfer for redox ***,through the integrated adsorption/catalysis,the shuttle effect is suppressed,the kinetics of redox reaction is enhanced,and the capacity decay is *** CoB/BN@rGO modified PP separator,the Li-S batteries with high initial capacity(1450 mAh g^(-1)at 0.35 mA cm^(-2))and long-cycle stability(700 cycles at 1.74 mA cm^(-2)with a decay rate of 0.032%per cycle)are *** work provides a novel insight for the preparation of bifunctional catalysis with integrated structure for long-life Li-S batteries.

关键词： Integrated structure Synergy effect Bifunctional catalysis Separator Li-S batteries

Rational design of phosphorus-doped cobalt sulfides electrocatalysts for hydrogen evolution

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Nano Research 2019年第12期12卷 2960-2965页

作者： Guoxing Qu tianli wu Yanan Yu Zekang Wang Yang Zhou Zhendong Tang Qin Yue Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China Henan Key Laboratory of Photovoltaic Materials Henan UniversityKatfeng 475004China Ordnance NCO Academy Army Engineering University ofPLAWuhan 430075China

Moderate anionic doping is an effective approach to improve the performance of electrocatalysts toward hydrogen evolution reaction(HER)since it can adjust the electronic structure,activesite,and *** reported studies mainly focus on designing P doped C0S2,while otherphases of cobalt sulfide,such as Co1-xS and Co9S8 doped with P are rarely investigated for HER ***,various cobalt sulfides(including CoSg/Co1-xS,Co1-xS,and Co9S8)doped with P are anchored on carbon cloth through a facile hydrothermal *** tested electrocatalysts,P doped Co1-xS exhibits excellent electrocatalytic performance with an overpotential of 110 and 165 mV(***)for currentdensities of 10 and 100 mA·cm^-2,*** functional theory calculations reveal that P doped Co1-xS possesses a smaller bandgapand more optimal hydrogen adsorption sites than pristine *** work initially investigates various cobalt sulfides doped with P and furthergets in sight into the activity improvement mechanism of P dopi ng,which could guide the desig n of earth-abunda nt HER electrocatalysts for the"hydrogen economy".

关键词： hydrogen evolution reaction electrocatalysts water splitting P doping cobalt sulfide

LiPAA with Short-chain Anion Facilitating Li_(2)S_(x)(x≤4)Reduction in Lean-electrolyte Lithium–sulfur Battery

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Energy & Environmental Materials 2022年第3期5卷 877-882页

作者： Jizong Zhang Mingming Chen Yu Si Jian Guo tianli wu Chengyang Wang Xiaolei Wang Key Laboratory for Green Chemical Technology of MOE School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) Tianjin UniversityTianjin 300072China Department of Chemical and Materials Engineering University of AlbertaEdmonton AB T6G 1H9Canada

Lean electrolyte usage in lithium–sulfur battery(LSB)meets the demand of the high energy ***,lean condition makes the electrolyte-related interface discrete,leading to retardation of ion transfer that depends on ***,electrochemical reactions face ***,lithium polyacrylate acid(LiPAA)with short-chain anions(molecular weight of 2000)is introduced into the *** of the polysulfide(PS)-philic instinct of the short-chain PAA anions,short-chain PS is captured inside of the *** addition,LiPAA supplies Li^(+)to the short-chain PS *** strong interaction between Li_(2)S_(4)and LiPAA effectively decreases Li_(2)S_(4)migration to the anode during *** a sense,the ion mass transfer pattern is thus changed comparing to traditional long-way mode between cathode and *** intermittent titration technique(GITT)proves that the interfacial reaction resistance is greatly decreased in the region where Li_(2)S_(x)(x≤4)reduction contributes *** the same time,the reversibility of electrochemical reduction/oxidation is *** to the accelerated Li_(2)S_(x)(x≤4)reduction,Li implanting of only 0.3 wt.%plus O introduction up to 1.4 wt.%enables the LSB perform well even with 1/4 of regular electrolyte dosage(5μL mg^(-1))and high-sulfur loading(4.2 mg cm^(-2)),increasing its rate capacity C_(0.8/0.5)from 52.6%(without the LiPAA)to 92.3%(with the LiP AA)as well as a capacity of 518.7 mAh g^(-1)after 400 cycles at 0.8 mA cm^(-2).

关键词： lean electrolyte polysulfides targeting transfer mass transfer interfacial reaction

Lipid droplets as endogenous intracellular microlenses

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Light(Science & Applications) 2021年第12期10卷 2507-2517页

作者： Xixi Chen tianli wu Zhiyong Gong Jinghui Guo Xiaoshuai Liu Yao Zhang Yuchao Li Pietro Ferraro Baojun Li Institute of Nanophotonics Jinan University511443 GuangzhouChina Department of Physiology School of MedicineJinan University510632 GuangzhouChina CNR-ISASI Institute of Applied Sciences and Intelligent Systems«E.Caianiello»Via Campi Flegrei 3480078 PozzuoliNaplesItaly

Using a single biological element as a photonic component with well-defined features has become a new intriguing paradigm in *** we show that endogenous lipid droplets in the mature adipose cells can behave as fully biocompatible microlenses to strengthen the ability of microscopic imaging as well as detecting intra-and extracellular *** the assistance of biolenses made of the lipid droplets,enhanced fluorescence imaging of cytoskeleton,lysosomes,and adenoviruses has been *** the same time,we demonstrated that the required excitation power can be reduced by up to 73%.The lipidic microlenses are finely manipulated by optical tweezers in order to address targets and perform their real-time imaging inside the *** efficient detecting of fluorescence signal of cancer cells in extracellular fluid was accomplished due to the focusing effect of incident light by the lipid *** lipid droplets acting as endogenous intracellular microlenses open the intriguing route for a multifunctional biocompatible optics tool for biosensing,endoscopic imaging,and single-cell diagnosis.

关键词： endogenous Lipid optics

Regulating Built-in Polar States via Atomic Self-Hybridization for Fast Ion Diffusion Kinetics in Potassium Ion Batteries

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Chinese Journal of Chemistry 2024年第21期42卷 2589-2598页

作者： Hongwei Du Xiaoyun Zhou Tao Li Wen Zhao Dan Zhou Dawei Yang tianli wu Ying Xu Henan Key Laboratory of Quantum Materials and Quantum Energy School of Future TechnologyHenan UniversityKaifengHenan475004 China School of Materials and Energy Lanzhou UniversityLanzhouGansu730000 China Department of Materials Science and Engineering University of ConnecticutStorrsConnecticut06269 United States

Potassium ion batteries(PIBs)are of great interest owing to the low cost and abundance of potassium resources,while the sluggish diffusion kinetics of K^(+)in the electrode materials severely impede their practical ***,self-hybridized BiOCl_(0.5)Br_(0.5) with a floral structure is assembled and used as anode for *** on the systematic theoretical calculation and experimental analysis,the unbalance of charge distribution between Cl and Br atoms leads to an enhanced built-in electric field and a larger interlayer spacing,which can enhance the K^(+)***,the K^(+)insertion causes the energetic evolution of polar states in the BiOCl_(0.5)Br_(0.5) crystal framework,where the dynamic correlation between the K^(+)and the halogen atoms leads to the formation of hole-like polarons,which significantly improves the K^(+)diffusion and reaction kinetics during the charging/discharging process,giving important implications to design the electrode materials with high electrochemical performance by engineering the interaction between electronic structure and ***,the BiOCl_(0.5)Br_(0.5) anode obtains an excellent performance of 171 mAh·g^(-1) at 1 A·g^(-1) over 2000 cycles in PIBs.

关键词： Bismuth oxyhalide Self-hybridized structure Potassium-ion battery Polar states Density functional theory

Subwavelength imaging and detection using adjustable and movable droplet microlenses

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Photonics Research 2020年第3期8卷 225-234页

作者： XIXI CHEN tianli wu ZHIYONG GONG YUCHAO LI YAO ZHANG BAOJUN LI Institute of Nanophotonics Jinan UniversityGuangzhou 511443China

We developed adjustable and movable droplet microlenses consisting of a liquid with a high refractive *** microlenses were prepared via ultrasonic shaking in deionized water,and the diameter of the microlenses ranged from 1 to 50μ*** stretching the microlenses,the focal length can be adjusted from 13 to 25μ*** the assistance of an optical tweezer,controllable assembly and movement of microlens arrays were also *** results showed that an imaging system combined with droplet microlenses could image 80 nm beads under white light *** the droplet microlenses,fluorescence emission at 550 nm from Cd Se@Zn S quantum dots was efficiently excited and ***,Raman scattering signals from a silicon wafer were enhanced by^19 *** presented droplet microlenses may offer new opportunities for flexible liquid devices in subwavelength imaging and detection.

关键词： stretching illumination excited

Surface protonation and oxygen evolution activity of epitaxial La(1-x)SrxCoO3 thin films

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Science China(Physics,Mechanics & Astronomy) 2020年第9期63卷 77-82页

作者： XiaoShuo Wang Liang Zhou MengXin Li Yi Luo TieYing Yang tianli wu XiaoLong Li Kui-Juan Jin Er-Jia Guo LiFen Wang XueDong Bai WeiFeng Zhang HaiZhong Guo Henan Key Laboratory of Photovoltaic Materials School of Physics and ElectronicsHenan UniversityKaifeng 475004China School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China Shanghai Synchrotron Radiation Facility(SSRF) Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201204China Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Collaborative Innovation Center of Light Manipulations and Applications Shandong Normal UniversityJinan 250358China

As an alternative electrode material,transition metal oxides are promising candidates due to multivalent nature and oxygen vacancies present in the structure with facilitate redox *** aim of this study is to explore the intrinsic mechanism of oxygen evolution reaction(OER)using two-dimensional thin film La1-xSrxCoO3 electrode as a ***,we report a planar two-dimensional model La1-xSrxCoO3 electrode grown on a Nb-SrTiO3 single-crystal substrate via pulsed laser *** two-dimensional La1-xSrxCoO3 films offer different oxygen evolution activities at different pH electrolyte *** mechanisms behind the variations of the oxygen evolution activity were discussed after comparing the oxygen evolution activity before and after treatments of the electrodes and measurements by various test *** results of this study offer a promising,low-cost electrode material for the efficient OER and a sustainable production of hydrogen fuel.

关键词： oxygen evolution reaction La1-xSrxCoO3 thin films lattice oxygen protonation

Stimulation and imaging of neural cells via photonic nanojets

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Photonics Research 2024年第8期12卷 1604-1609页

作者： HENG LI XIXI CHEN tianli wu ZHIYONG GONG JINGHUI GUO XIAOSONG BAI JIAWEI LI YAO ZHANG YUCHAO LI BAOJUN LI Guangdong Provincial Key Laboratory of Nanophotonic Manipulation Institute of NanophotonicsCollege of Physics&Optoelectronic EngineeringJinan UniversityGuangzhou 511443China School of Medicine The Chinese University of Hong KongShenzhen 518172China InnerMedical Co. Ltd.Shenzhen 518055China

Various neuromodulation techniques have been developed to modulate the peak activity of neurons,thereby regulating brain function and alleviating neurological ***,neuronal stimulation and imaging have significantly contributed to the understanding and treatment of these ***,we propose utilizing photonic nanojets for optical stimulation and imaging of neural *** application of resin microspheres as microlenses enhances fluorescence imaging of neural lysosomes,mitochondria,and actin filaments by generating photonic ***,optical tweezers can precisely manipulate the microlenses to locate specific targets within the cell for real-time stimulation and *** focusing capabilities of these microlenses enable subcellular-level spatial precision in stimulation,allowing highly accurate targeting of neural cells while minimizing off-target ***,fluorescent signals during neural cell stimulation can be detected in real-time using these *** proposed method facilitates investigation into intercellular signal transmission among neural cells,providing new insights into the underlying mechanisms of neuronal cell activities at a subcellular level.

关键词： stimulation neural utilizing

Optofluidic identification of single microorganisms using fiber-optical-tweezer-based Raman spectroscopy with artificial neural network

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BMEMat(BioMedical Engineering Materials) 2023年第1期1卷 70-79页

作者： Chenghong Lin Xiaofeng Li tianli wu Jiaqi Xu Zhiyong Gong Taiheng Chen Baojun Li Yuchao Li Jinghui Guo Yao Zhang Institute of Nanophotonics Jinan UniversityGuangzhouChina Department of Clinical Medical Laboratory Peking University Shenzhen HospitalShenzhenChina Department of Physiology School of MedicineJinan UniversityGuangzhouChina Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes Jinan UniversityGuangzhouChina

Rapid and accurate detection of microorganisms is critical to clinical *** Raman spectroscopy promises label-free and culture-free detection of biomedical objects,it holds the potential to rapidly identify microorganisms in a single *** stabilize the microorganism for spectrum collection and to increase the accuracy of real-time identification,we propose an optofluidic method for single microorganism detection in microfluidics using optical-tweezing-based Raman spectroscopy with artificial neural network.A fiber optical tweezer was incorporated into a microfluidic channel to generate op-tical forces that trap different species of microorganisms at the tip of the tweezer and their Raman spectra were simultaneously *** artificial neural network was designed and employed to classify the Raman spectra of the microorganisms,and the identification accuracy reached 94.93%.This study provides a promising strategy for rapid and accurate diagnosis of mi-crobial infection on a lab-on-a-chip platform.

关键词： artificial neural network fiber optical tweezers microorganisms Raman spectroscopy single-cell identification

融合职业核心能力培养的高职SPOC教学模式探索——以《多媒体素材采集与应用》为例

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铜陵职业技术学院学报 2021年第3期20卷 64-67,91页

作者：吴田力泉州经贸职业技术学院福建泉州362000

职业核心能力是伴随人终身的可持续发展的能力,SPOC属于MOOC的分支,是实体课堂与在线教育的混合教学模式。本研究基于超星泛雅网络学习平台构建SPOC课程,采用ADDIE模型对《多媒体素材采集与应用》进行课程设计与开发,并在教学过程中融... 详细信息

职业核心能力是伴随人终身的可持续发展的能力,SPOC属于MOOC的分支,是实体课堂与在线教育的混合教学模式。本研究基于超星泛雅网络学习平台构建SPOC课程,采用ADDIE模型对《多媒体素材采集与应用》进行课程设计与开发,并在教学过程中融合职业核心能力相应模块的培养,在这些基础上设计了SPOC翻转课堂教学模式,历经一学期实践教学,获得了良好的教学效果,有效地提高了学生的学习成效。

关键词： SPOC 职业核心能力教学模式高职