检索结果-南通市图书馆

Integrated System of Solar Cells with Hierarchical NiCo2O4 Battery-Supercapacitor Hybrid Devices for Self-Driving Light-Emitting Diodes

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro Letters 2019年第3期11卷 92-103页

作者： Yuliang Yuan Yangdan Lu BeiEr Jia Haichao Tang Lingxiang Chen YuJia Zeng Yang Hou Qinghua Zhang qinggang he Lei Jiao Jianxing Leng Zhizhen Ye Jianguo Lu State Key Laboratory of Silicon Materials School of Materials Science and EngineeringZhejiangUniversityHangzhou310027People’s Republic of China Key Laboratory for Biomedical Engineering of Ministry of Education College of Biomedical Engineeringand Instrument ScienceZhejiang UniversityHangzhou310027People’s Republic of China Shenzhen Key Laboratory of Laser Engineering College of Optoelectronic EngineeringShenzhenUniversityShenzhen518060People’s Republic of China4College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027People’s Republic of China Ningbo Research Institute Zhejiang UniversityNingbo315100People’s Republic of China Ocean College Zhejiang UniversityZhoushan316021People’s Republic of China

An integrated system has been provided with a-Si/H solar cells as energy conversion device,NiCo2O4 battery-supercapacitor hybrid(BSH)as energy storage device,and light emitting diodes(LEDs)as energy utilization *** designing three-dimensional hierarchical NiCo2O4 arrays as faradic electrode,with capacitive electrode of active carbon(AC),BSHs were assembled with energy density of 16.6 Wh kg-1,power density of 7285 W kg-1,long-term stability with 100% retention after 15,000 cycles,and rather low *** NiCo2O4//AC BSH was charged to 1.6 V in 1 s by solar cells and acted as reliable sources for powering *** integrated system is rational for operation,having an overall efficiency of 8.1% with storage efficiency of 74.24%.The integrated system demonstrates a stable solar power conversion,outstanding energy storage behavior,and reliable light *** study offers a precious strategy to design a self-driven integrated system for highly efficient energy utilization.

关键词： Integrated system NiCo2O4 Battery-supercapacitor hybrid devices Self-driving LED

Remarkable improvement of cyclic stability in Li-O2 batteries using ruthenocene as a redox mediator

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2020年第7期31卷 1997-2002页

作者： Cuicui Zhu Yiping Wang Ling Shuai Yizhao Tang Ming Qiu Jian Xie Jia Liu Wen Wen hengquan Chen Suifei Nan Mei Dou qinggang he College of Chemical and Biological Engineering Zhejiang UniversityHangzhou 310027China Institute of Zhejiang University-Quzhou Quzhou 324000China Institute of Nanoscience and Nanotechnology College of Physical Science and TechnologyCentral China Normal UniversityWuhan 430079China School of Materials Science and Engineering Zhejiang UniversityHangzhou 310027China Nation&Local United Engineering Laboratory for Power Batteries Faculty of ChemistryNortheast Normal UniversityChangchun 130024China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201204China Ningbo Research Institute Zhejiang UniversityNingbo 315100China

Nonaqueous Li-O2 batteries attract attention for their theoretical specific energy ***,due to the difficulty of decomposition of Li2 O2,Li-O2 batteries have high charge overpotential and poor cycling *** all kinds of catalysts have been studied on the *** to heterogeneous solid catalysts,soluble catalysts achieve faster and more effective transport of electrons by reversible redox ***,we first report ruthenocene(Ruc) as a mobile redox mediator in a Li-O2 battery.0.01 mol/L Ruc in the electrolyte effectively reduces the charging voltage by 610 ***,Ruc greatly increases the cycling life by four-fold(up to 83 cycles) with a simple ketjen black(KB) *** results of SEM,XPS and XRD confirm that less discharge product residue accumulated after *** verify the reaction mechanisms of the mediato r,free energy profiles of the possible reaction pathways based on DFT are provided.

关键词： Li-O2 battery Redox mediator Ruthenocene Li2O2 Cycling life

Nitrogen-doped carbon nanotube-encapsulated nickel nanoparticles assembled on graphene for efficient CO2 electroreduction

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2020年第6期31卷 1438-1442页

作者： Tingting Wang Jian Yang Jiayi Chen qinggang he Zhongjian Li Lecheng Lei Jianguo Lu Michael K.H.Leung Bin Yang Yang Hou Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027China Institute of Zhejiang University-Quzhou Quzhou 324000China State Key Laboratory of Silicon Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China Ability R&D Energy Research Centre(AERC) School of Energy and EnvironmentCity University of Hong KongHong Kong 999077China Ningbo Research Institute Zhejiang UniversityNingbo 315100China

Exploring 3 D hybrid nanocarbons encapsulated with metal nanoparticles(NPs)are recently considered as emerging catalysts for boosting CO2 electroreduction reaction(CRR)under practical and economic ***,we report a one-step pyrolysis strategy for fabricating N-doped carbon nanotube(CNT)-encapsulated Ni NPs assembled on the surface of graphene(N/NiNPs@CNT/G)to efficiently convert CO2 into *** such 3 D hybrid,the particle size of Ni NPs that coated by five graphitic carbon layers is less than 100 nm,and the amount of N dopants introduced into graphene with countable CNTs is determined to 7.27 at%.Thanks to unique CNT-encapsulated Ni NPs structure and N dopants,the achieved N/NiNPs@CNT/G hybrid displays an exceptional CRR activity with a high Faradaic efficiency of 97.7%and large CO partial current density of 7.9 mA/cm2 at-0.7 V,which outperforms those reported metallic NPs loaded carbon based CRR ***,a low Tafel slope of 134 mV/dec,a turnover frequency of 387.3 CO/h at-0.9 V,and tiny performance losses during long-term CRR operation are observed on N/NiNPs@CNT/*** observations illustrate that the Ni NPs encapsulated by carbon layers along with N dopants are of great importance in the conversion of CO2 into CO with high current density.

关键词： CO2 electroreduction Graphene nanosheets Ni nanoparticles N dopants 3D hybrid

Regulating adsorption ability toward polysulfides in a porous carbon/Cu_(3)P hybrid for an ultrastable high-temperature lithium-sulfur battery

在线全文

学校读者我要写书评

暂无评论

Carbon Energy 2021年第6期3卷 841-855页

作者： Yichuan Guo Rabia Khatoon Jianguo Lu qinggang he Xiang Gao Xiaopeng Yang Xun Hu Yang Wu Jiale Lian Zhoupeng Li Zhizhen Ye State Key Laboratory of Silicon Materials Key Laboratory for Biomedical Engineering of Ministry of EducationSchool of Materials Science and EngineeringZhejiang UniversityHangzhouChina Ningbo Research Institute Zhejiang UniversityNingboChina Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology College of Chemical and Biological EngineeringZhejiang UniversityHangzhouChina School of Materials Science and Engineering Jinan UniversityJinanChina

Lithium-sulfur batteries(LSBs)can work at high temperatures,but they suffer from poor cycle life stability due to the“shuttle effect”of *** this study,pollen-derived porous carbon/cuprous phosphide(PC/Cu_(3)P)hybrids were rationally synthesized using a one-step carbonization method using pollen as the source material,acting as the sulfur host for *** the hybrid,polar Cu_(3)P can markedly inhibit the“shuttle effect”by regulating the adsorption ability toward polysulfides,as confirmed by theoretical calculations and experimental *** an example,the camellia pollen porous carbon(CPC)/Cu_(3)P/S electrode shows a high capacity of 1205.6 mAh g^(−1) at 0.1 C,an ultralow capacity decay rate of 0.038%per cycle after 1000 cycles at 1 C,and a rather high initial Coulombic efficiency of 98.5%.The CPC/Cu_(3)P LSBs can work well at high temperatures,having a high capacity of 545.9 mAh g^(−1) at 1 C even at 150℃.The strategy of the PC/Cu_(3)P hybrid proposed in this study is expected to be an ideal cathode for ultrastable high-temperature *** believe that this strategy is universal and worthy of in-depth development for the next generation energy storage devices.

关键词： density functional theory calculation high operating temperature lithium-sulfur battery polysulfide adsorption porous carbon/Cu_(3)P hybrid ultrastability

Nickel single atom overcoordinated active sites to accelerate the electrochemical reaction kinetics for Li-S cathode

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2023年第3期78卷 203-210,I0006页

作者： Juan Zhu Xinyue Wang Tian Ke Mingji Jia Biyu Jin Yuanyuan Li Qiwei Yang Lanhui Ren Yongyuan Ren Dangguo Cheng Jianguo Lu Xiang Gao qinggang he Yang Hou Xiaoli Zhan Qinghua Zhang School of Chemical and Biological Engineering Zhejiang UniversityHangzhou 310027ZhejiangChina Institute of Zhejiang University-Quzhou Quzhou 324000ZhejiangChina School of Materials Science and Engineering Zhejiang UniversityHangzhou 310027ZhejiangChina

Lithium-sulfur(Li-S)batteries with high theoretical energy density are promising advanced energy storage ***,shuttling of dissolute lithium polysulfide(LiPSs)and sluggish conversion kinetics impede their ***,single nickel(Ni)atoms on two-dimensional(2D)nitrogen(N)-doped carbon with Ni-N_(4)-O overcoordinated structure(SANi-N_(4)-O/NC)are prepared and firstly used as a sulfur host of Li-S *** to the efficient polysulfides traps and highly LiPSs conversion effect of SANi-N_(4)-O/NC,the electrochemical performance of Li-S batteries obviously *** batteries can well operate even under high sulfur loading(5.8 mg cm^(-2))and lean electrolyte(6.1μL mg^(-1))***,density functional theory(DFT)calculations demonstrate that Ni single atom’s active sites decrease the energy barriers of conversion reactions from Li_(2)S_(8)to Li2S due to the strong interaction between SANi-N_(4)-O/NC and ***,the kinetic conversion of LiPSs was accelerated and the shuttle effect is suppressed on SANi-N_(4)-O/NC *** study provides a new design strategy for a 2D structure with single-atom overcoordinated active sites to facilitate the fast kinetic conversion of LiPSs for Li-S cathode.

关键词： Nickel single atom catalyst Ni-N_(4)-O sites 2D N-doped carbon Li-S batteries Shuttle effect

Accelerating Oxygen Electrocatalysis Kinetics on Metal-Organic Frameworks via Bond Length Optimization

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2024年第9期16卷 279-290页

作者： Fan he Yingnan Liu Xiaoxuan Yang Yaqi Chen Cheng‑Chieh Yang Chung‑Li Dong qinggang he Bin Yang Zhongjian Li Yongbo Kuang Lecheng Lei Liming Dai Yang Hou Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China Institute of Zhejiang University-Quzhou Quzhou 324000People’s Republic of China Ningbo Institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo 315201People’s Republic of China School of Biological and Chemical Engineering NingboTech UniversityNingbo 315100People’s Republic of China Department of Physics Tamkang UniversityNew Taipei 25137TaiwanPeople’s Republic of China Australian Carbon Materials Centre(A‑CMC) School of Chemical EngineeringUniversity of New South WalesSydneyNSW 2051Australia

Metal-organic frameworks(MOFs)have been developed as an ideal platform for exploration of the relationship between intrinsic structure and catalytic activity,but the limited catalytic activity and stability has hampered their practical use in water ***,we develop a bond length adjustment strategy for optimizing naphthalene-based MOFs that synthesized by acid etching Co-naphthalenedicarboxylic acid-based MOFs(donated as AE-CoNDA)to serve as efficient catalyst for water ***-CoNDA exhibits a low overpotential of 260 mV to reach 10 mA cm^(−2)and a small Tafel slope of 62 mV dec^(−1)with excellent stability over 100 *** integrated AE-CoNDA onto BiVO_(4),photocurrent density of 4.3 mA cm^(−2)is achieved at 1.23 *** investigations demonstrate that the stretched Co-O bond length was found to optimize the orbitals hybridization of Co 3d and O 2p,which accounts for the fast kinetics and high *** calculations reveal that the stretched Co-O bond length strengthens the adsorption of oxygen-contained intermediates at the Co active sites for highly efficient water splitting.

关键词： Metal-organic frameworks Bond length adjustment Spin state transition Orbitals hybridization Water splitting

原子力显微镜在质子交换膜燃料电池表/界面现象中的应用

在线全文

学校读者我要写书评

暂无评论

化工进展 2021年第6期40卷 2993-3004页

作者：和晶王晓江张硕猛和庆钢浙江大学化学工程与生物工程学院浙江杭州310027

综述了原子力显微镜(AFM)的技术特点及其在质子交换膜燃料电池(PEMFCs)表/界面现象研究中的应用,总结了利用AFM多种模式表征质子交换膜和催化层的表面性质、界面结构、质子传导机理以及电化学活性方面的研究进展。除此之外,AFM可以在燃... 详细信息

综述了原子力显微镜(AFM)的技术特点及其在质子交换膜燃料电池(PEMFCs)表/界面现象研究中的应用,总结了利用AFM多种模式表征质子交换膜和催化层的表面性质、界面结构、质子传导机理以及电化学活性方面的研究进展。除此之外,AFM可以在燃料电池工作条件下对电化学反应过程进行监控,实时观察PEMFCs中的电化学行为,是研究PEMFCs中质子传导机理和电化学活性的一种有效手段。AFM研究对质子交换膜的合成与改性具有一定的指导意义,同时也为催化剂等其他关键材料的制备提供了参考,为PEMFCs中电化学反应过程的研究开辟了更多的方向,具有良好的发展前景。

关键词：原子力显微镜燃料电池质子交换膜催化剂

Study of A Novel Predictable Poisson Method for Traversing Symmetric NAT

在线全文

学校读者我要写书评

暂无评论

Study of A Novel Predictable Poisson Method for Traversing S...

作者： Jiayu Huang Bailing Wang Chunle Fu Xuehuai Zhang qinggang he Yang Liu School of Computer Science and Technology Harbin Institute of Technology(Weihai) University Institute of Cyberspace Security Harbin Institute of Technology University Harbin Institute of Technology(Weihai) Innovation and Ploneer Park Co. Ltd School of Computer Science and Technology Harbin Institute of Technology University

Network Address Translators（NATs） traversal techniques are applied in Peer-to-Peer（P2P） communication to improve network quality of *** existing solutions to traverse NATs are including STUN,TURN and ***,these solutions relay packets instead of traversing symmetric NATs *** solve these problems,this paper proposes a novel Predictable Poisson Method（PPM）.The proposed Network Traffic Model（NTM） calculates the parameter l of the Poisson process and the proposed Expected Value Method（EVM） and Poisson Sampling Method（PSM） are used to predict ports allocated by *** proposed NAT Traversal Algorithm（NATTA） is designed to traverse symmetric *** results show the proposed EVM and PSM perform better on precision and efficiency than traditional methods.

关键词： Symmetric NAT Traversal P2P Poisson Process Port Prediction UDP

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

基于网页结构的网站检测研究

高技术通讯 2015年第10期25卷 912-918页

作者：李大辉何清刚王佰玲邹新一哈尔滨工业大学计算机科学与技术学院哈尔滨150001

为了准确检测出仿冒网站,提出了一种基于网页结构的页面相似度计算方法。该方法首先将网页分块并进行合理的筛选,其次通过初步比对确定相似节点群,最后将网页数据量化并计算出网页是否相似。试验表明,该方法可以有效地检测出网页相似情... 详细信息

为了准确检测出仿冒网站,提出了一种基于网页结构的页面相似度计算方法。该方法首先将网页分块并进行合理的筛选,其次通过初步比对确定相似节点群,最后将网页数据量化并计算出网页是否相似。试验表明,该方法可以有效地检测出网页相似情况,对于仿冒网站的镜像尤其明显,误报率及漏报率均不超过10%。

关键词：网页结构节点筛选网页比对