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Research 2020年第1期2020卷 315-323页

作者： Yao Zhang Kun Rui Aoming Huang Ying Ding Kang Hu Wenhui Shi Xiehong Cao Huijuan Lin Jixin Zhu Wei Huang Key laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM) Nanjing Tech University(NanjingTech)30 South Puzhu RoadNanjing 211816China Center for Membrane and Water Science&technology Ocean CollegeZhejiang University of TechnologyHangzhou 310014China College of Materials Science and engineering Zhejiang University of Technology18 Chaowang RoadHangzhouZhejiang 310014China Shaanxi Institute of Flexible Electronics(SIFE) Northwestern Polytechnical University(NPU)127 West Youyi RoadXi’an 710072China

Vanadium oxides have recently attracted widespread attention due to their unique advantages and have demonstrated promising chemical and physical properties for energy *** work develops a mild and efficient method to stereoassemble hollow V_(2)O_(5)@FeOOH heterostructured nanoflowers with thin *** dual-phased architectures possess multiple lithiation voltage plateau and well-defined heterointerfaces facilitating efficient charge transfer,mass diffusion,and self-reconstruction with volumetric *** a proof of concept,the resulting V_(2)O_(5)@FeOOH hollow nanoflowers as an anode material for lithiumion batteries(LIBs)realize high-specific capacities,long lifespans,and superior rate capabilities,e.g.,maintaining a specific capacity as high as 985 mAhg^(-1) at 200mAg^(-1) with good cyclability.

关键词： flowers FeOOH lithium

Hierarchical Ni-plated melamine sponge and MXene film synergistically supported phase change materials towards integrated shape stability,thermal management and electromagnetic interference shielding

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Journal of Materials Science & technology 2023年第1期132卷 132-143页

作者： Ziling Cheng Guojun Chang Bai Xue Lan Xie Qiang Zheng State Key laboratory of Public Big Data Guizhou UniversityGuiyang 550025China Department of Polymer Materials and engineering College of Materials and MetallurgyGuizhou UniversityGuiyang 550025China National engineering Research Center for Compounding and Modification of Polymer Materials National and Local Joint Engineering Research Center for Functional Polymer Membrane Materials and Membrane ProcessesGuiyang 550014China College of Polymer Science and engineering Zhejiang UniversityHangzhou 310000China

Along with the integrated and miniaturized development of advanced electronic devices,phase change materials(PCMs)simultaneously with efficient thermal management and high electromag-netic interference(EMI)shielding effectiveness(SE)are ungently ***,the shape-stabilized MXene/Ni-platted melamine sponge/Regenerated cellulose/Graphene nanoplate/Polyethylene glycol(MX/Ni@MS/RCG/PEG)composite PCMs comprising hierarchical Ni@MS/RCG and MXene film were fabricated via a facile encapsulation *** Ni@MS/RCG hybrid aerogel was prepared by electroless plating and sol-gel methods,and MXene film was obtained using vacuum-assisted filtra-tion *** synergistic effect of conductive Ni@MS/RCG networks and tight MXene film endows MX/Ni@MS/RCG/PEG composite PCMs with good shape stability,high cyclic reliability,large latent heat of phase change(154.3 J g^(–1)),excellent thermal conductivity(TC,0.47 W m^(–1)K^(–1))and favorable EMI shield-ing performance(32.7 dB).The TC of acceptable 0.47 W m^(–1)K^(–1)is observed for MX/Ni@MS/RCG-5/PEG at a rather low GNP content of merely 0.39 wt%.In addition,the temperature variation of MX/Ni@MS/RCG-5/PEG is a lot faster than that of pure PEG in the heating/cooling process,revealing the remarkable energy storage and release efficiency for the composite *** investigation has taken an important step to-wards shape-stabilized composite PCMs with both effective thermal management and high EMI SE for promising applications in electronic packaging and advanced energy.

关键词： Phase change material Thermal management Electromagnetic interference shielding Shape stability Encapsulation

Hierarchically nanostructured transition metal oxides for supercapacitors

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Science China Materials 2018年第2期61卷 185-209页

作者： Mingbo Zheng Xiao Xiao Lulu Li Peng Gu Xiao Dai Hao Tang Qin Hu Huaiguo Xue Huan Pang School of Chemistry and Chemical engineering Institute for Innovative Materials and EnergyYangzhou UniversityYangzhou 225009China

highly efficient, clean, and sustainable electrochemical energy storage technologies have been investigated extensively to counter the shortage of fossil fuels and increasingly prominent environmental problems. Supercapacitors（SCs） have received wide attention as critical devices for electrochemical energy storage because of their rapid charging-discharging capability and long life cycle. Various transition metal oxides（TMOs）, such as MnO_2, NiO, Co_3O_4,and CuO, have been extensively studied as electrode materials for SCs. Compared with carbon and conducting polymers,TMO materials can achieve higher specific capacitance. For further improvement of electrochemical performance, hierarchically nano structured TMO materials have become a hot research area for electrode materials in SCs. The hierarchical nanostructure can not only offer abundant accessible electroactive sites for redox reactions but also shorten the ion diffusion pathway. In this review, we provide an overall summary and evaluation of the recent progress of hierarchically nano structured TMOs for SCs, including synthesis methods, compositions, structures, and electrochemical performances. Both single-phase TMOs and the composites based on TMOs are summarized. Furthermore, we also prospect the developing foreground of this field. In this view, the important directions mainly include： the nanocomposites of TMOs materials with conductive materials; the cobalt-based materials and the nickel-based materials; the improvement of the volume energy density, the asymmetric SCs, and the flexible all-solid-state SCs.

关键词： hierarchical nanostructure transition metal oxides supercapacitors

Maximum Data Generation Rate Routing Protocol Based on Data Flow Controlling technology for Rechargeable Wireless Sensor Networks

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Computers, Materials & Continua 2019年第5期59卷 649-667页

作者： Demin Gao Shuo Zhang Fuquan Zhang Xijian Fan Jinchi Zhang College of Information Science and technology Nanjing Forestry UniversityNanjing210037China Department of Computer Science and engineering University of MinnesotaMinneapolis MN55455USA

For rechargeable wireless sensor networks,limited energy storage capacity,dynamic energy supply,low and dynamic duty cycles cause that it is unpractical to maintain a fixed routing path for packets delivery permanently from a source to destination in a distributed ***,before data delivery,a sensor has to update its waking schedule continuously and share them to its neighbors,which lead to high energy expenditure for reestablishing path links frequently and low efficiency of energy utilization for collecting *** this work,we propose the maximum data generation rate routing protocol based on data flow controlling *** a sensor,it does not share its waking schedule to its neighbors and cache any waking schedules of other ***,the energy consumption for time synchronization,location information and waking schedule shared will be reduced *** saving energy can be used for improving data collection *** shows our scheme is efficient to improve packets generation rate in rechargeable wireless sensor networks.

关键词： Wireless sensor networks maximum data generation rate rechargeable-WSNs

energy storage resources management:Planning,operation,and business model

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Frontiers of engineering Management 2022年第3期9卷 373-391页

作者： Kaile ZHOU Zenghui ZHANG Lu LIU Shanlin YANG School of Management Hefei University of TechnologyHefei 230009China Key laboratory of Process Optimization and Intelligent Decision-making of Ministry of Education Hefei University of TechnologyHefei 230009China

With the acceleration of supply-side renewable energy penetration rate and the increasingly diversified and complex demand-side loads,how to maintain the stable,reliable,and efficient operation of the power system has become a challenging issue requiring *** of the feasible solutions is deploying the energy storage system(ESS)to integrate with the energy system to stabilize ***,considering the costs and the input/output characteristics of ESS,both theinitial configuration process and the actual operation process require efficient *** study presents a comprehensive reviewof managing ESs from the perspectives of planning,operation,and business *** of all,in terms of planning and configuration,it is investigated from capacity planning,location planning,as well as capacity and location combined *** process is generally the first step in deploying ***,it explores operation management of ESS from the perspectives of state assessment and operation *** so-called state assessment refers to the assessment of three aspects:The state of charge(SOC),the state of health(SOH),and the remaining useful life(RUL).The operation optimization includes ESS operation strategy optimization and joint operation ***,it discusses the business models of *** business models involve ancillary services and load transfer,while emerging business models include electric vehicle(EV)as energy storage and shared energy storage.

关键词： energy storage system energy storage resources management planning configuration operational management business model

Hierarchically nitrogen-doped mesoporous carbon nanospheres with dual ion adsorption capability for superior rate and ultra-stable zinc ion hybrid supercapacitors

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Science China Materials 2022年第9期65卷 2401-2411页

作者： Zhongyou Peng Junxi Guo Qichang He Shulong Li Licheng Tan Yiwang Chen College of Chemistry and Chemical engineering/Institute of Polymers and energy Chemistry(IPEC) Nanchang UniversityNanchang 330031China Institute of Advanced Scientific Research(iASR)/Key Lab of Fluorine and Silicon for energy Materials and Chemistry of Ministry of Education Jiangxi Normal UniversityNanchang 330022China School of Future technology Nanchang UniversityNanchang 330031China

Although significant progress has been achieved in developing high energy aqueous zinc ion hybrid supercapacitors(ZHSCs),the sluggish diffusion of zinc ion(Zn^(2+))and unsatisfactory cathodes still hinder their energy density and cycling life *** work demonstrates the use of nitrogen-doped mesoporous carbon nanospheres(NMCSs)with appropriately hierarchical pore distribution and enhanced zinc ion storage capability for efficient Zn^(2+)*** asprepared aqueous ZHSC delivers a significant specific capacity of 157.8 mA h g^(-1),a maximum energy density of 126.2 W h kg^(-1) at 0.2 A g^(-1),and an ultra-high power density of 39.9 kW kg^(-1) with a quick charge time of 5.5 ***,the ZHSC demonstrates an ultra-long cycling life span of 50,000 cycles with an exciting capacity retention of 96.2%.More interestingly,a new type of planar ZHSC is fabricated with outstanding low-temperature electrochemical performance,landmark volumetric energy density of 31.6 mW h cm^(-3),and excellent serial and parallel *** investigation verifies that the superior electrochemical capability is due to the synergistic effect of cation and anion adsorption,as well as the reversible chemical adsorption of *** work provides not only an innovative strategy to construct and develop novel high-performance ZHSCs,but also a deeper understanding of the electrochemical characteristics of ZHSCs.

关键词： mesoporous carbon nanospheres nitrogen doping dual ion adsorption anti-freezing electrolyte zinc ion hybrid supercapacitors

Bio-inspired synthesis of nanomaterials and smart structures for electrochemical energy storage and conversion

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Nano Materials Science 2020年第3期2卷 264-280页

作者： Mei Ding Gen Chen Weichuan Xu Chuankun Jia Hongmei Luo College of Materials Science and engineering Changsha University of Science and TechnologyChangshaHunan410114PR China School of Materials Science and engineering Central South UniversityChangshaHunan410083PR China Chemical and Materials engineering Department New Mexico State UniversityNM88003United States

Traditional synthetic methodologies are confronted with great challenges to fabricate complex nanomaterials with delicate design,high efficiency and excellent *** the past decade,bio-inspired synthesis has been extensively applied as an effective and efficient strategy for the fabrication of nanomaterials and *** electrode materials at nanoscale in the aspect of either structure or functionality has been receiving surging interest because of their incomparable advantages and outperforming *** this review,we summarize the recent progresses on bio-inspired synthesis of nanomaterials and smart structures in the field of energy storage and ***,an overall introduction of bio-inspired synthetic strategies will be presented,with focus on the biotemplates and *** that,a library of complex mimicking structures featured by high-order,hierarchical porosity,or bionic function are introduced,with discussion on their chemical and physical properties associated with the *** enhanced electrochemical properties such as energy density,cycling stability,*** different electrochemical systems will be also *** last,we will expand the perspectives regarding the advantages and limitations of bioinspired strategy and possible solutions in the future.

关键词： properties. structure. synthesis

Hierarchical flower-like cobalt phosphosulfide derived from Prussian blue analogue as an efficient polysulfides adsorbent for long-life lithium-sulfur batteries

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Nano Research 2019年第5期12卷 1115-1120页

作者： Xiaoxia Chen Xuyang Ding Haliya Muheiyati Zhenyu Feng Liqiang Xu Weini Ge Yitai Qian Key laboratory of Colloid & Interface Chemistry Ministry of Education and School of Chemistry and Chemical EngineeringShandong UniversityJinan 250100China Shenzhen Research Institute of Shandong University Rm A301Virtual University ParkNanshanShenzhen 518057China

Lithium-sulfur (Li-S) battery as one of the most attractive candidates for energy storage systems has attracted extensive ***,for the first time,hierarchical flower-like cobalt phosphosulfide architectures (defined as "CoSP") derived from Prussian blue analogue (PBA) was fabricated through the conversion of Co-based PBA in PxSy *** as-prepared polar CoSP could effectively trap polysulfides through the formation of strong chemical *** addition,after the combination of CoSP with high conductive rGO,the obtained CoSP/rGO as sulfur host material exhibits ultralow capacity decay rate of 0.046% per cycle over 900 cycles at a current density of 1 *** excellent performance could be attributed to the shortened lithium diffusion pathways,fastened electron transport ability during polysulfide conversion,and increased much more anchor active sites to polysulfides,which is expected to be a promising material for Li-S *** is believed that the as-prepared CoSP/rGO architectures will shed light on the development of novel promising materials for Li-S batteries with high cycle stability.

关键词： cobalt phosphosulfide Li-S batteries Prussian blue analogue hierarchical flower-like

Encapsulated MnO in N-doping carbon nanofibers as efficient ORR electrocatalysts

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Science China Materials 2017年第10期60卷 937-946页

作者： Chaoqun Shang Mingyang Yang Zhenyu Wang Minchan Li Meng Liu Jian Zhu Yinggang Zhu Liangjun Zhou Hua Cheng Yingying Gu Yougen Tang Xingzhong Zhao Zhouguang Lu Department of Materials Science and engineering Southern University of Science and Technology Shenzhen 518055 China School of Physics and technology Wuhan University Wuhan 430072 China College of Chemistry and Chemical engineering Central South University Changsha 410083 China

Development of cheap,abundant and noblemetal-free materials as high efficient oxygen reduction electrocatalysts is crucial for future energy storage system. Here,one-dimensional（1D） MnO N-doped carbon nanofibers（MnO-NCNFs） were successfully developed by electrospinning combined with high temperature pyrolysis. The MnO-NCNFs exhibit promising electrochemical performance,methanol tolerance,and durability in alkaline medium. The outstanding electrocatalytic activity is mainly attributed to several *** of all,the uniform 1D fiber structure and the conductive network could facilitate the electron transport. Besides,the introduction of Mn into the precursor can catalyze the transformation of amorphous carbon to graphite carbon,while the improved graphitization means better conductivity,beneficial for the enhancement of catalytic activity for oxygen reduction reaction（ORR）. Furthermore,the porous structure and high surface area can effectively decrease the mass transport resistance and increase the exposed ORR active sites,thus improve utilization efficiency and raise the quantity of exposed ORR active sites. The synergistic effect of MnO and NCNFs matrix,which enhances charge transfer,adsorbent transport,and delivers efficiency in the electrolyte solution,ensures the high ORR performance of MnO-NCNFs.

关键词： electrospinning MnO N-doping carbon nanofibers graphitization oxygen reduction electrocatalysts

Photonic synapses with ultralow energy consumption for artificial visual perception and brain storage

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Opto-Electronic Advances 2022年第9期5卷 1-13页

作者： Caihong Li Wen Du Yixuan Huang Jihua Zou Lingzhi Luo Song Sun Alexander OGovorov Jiang Wu Hongxing Xu Zhiming Wang Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China Microsystem and Terahertz Research Center China Academy of Engineering PhysicsChengdu 610200China Institute of Electronic engineering China Academy of Engineering PhysicsMianyang 621999China Department of Physics and Astronomy Ohio UniversityAthensOhio 45701United States State Key laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of ChinaChengdu 610065China School of Physics and technology Wuhan UniversityWuhan 430072China

The human visual system,dependent on retinal cells,can be regarded as a complex combination of optical system and nervous *** retinal system could mimic the sensing and processing function of human *** stimulated synaptic devices could serve as the building blocks for artificial retinas and subsequent information transmission system to ***,photonic synaptic transistors based on polycrystalline MoS_(2),which could simulate human visual perception and brain storage,are ***,the photodetection range from visible light to near-infrared light of MoS_(2) multilayer could extend human eyes’vision limitation to near-infrared ***,the photonic synaptic transistor shows an ultrafast speed within 5μs and ultralow power consumption under optical stimuli about 40 aJ,several orders of magnitude lower than biological synapses(50 ms and 10 fJ).Furthermore,the backgate control could act as emotional modulation of the artificial brain to enhance or suppress memory function,*** intensity of *** proposed carrier trapping/detrapping as the main working mechanism is presented for the *** addition,synaptic functionalities including short synaptic plasticity,long synaptic plasticity and paired-pulse facilitation could be successfully simulated based on the prepared ***,the large difference between short synaptic plasticity and long synaptic plasticity reveals the better image pre-processing function of the prepared photonic *** classical Pavlovian conditioning associated with the associative learning is successfully implemented as ***,the efficient and rich functionalities demonstrate the potential of the MoS_(2) synaptic device that integrates sensing-memory-preprocessing capabilities for realizing artificial neural networks with different emotions that mimic human retina and brain.

关键词： MoS_(2)synaptic transistors visual perception ultralow power consumption memory