检索结果-南通市图书馆

Journal of Energy Chemistry 2022年第1期31卷 246-262,I0007页

作者： Aruuhan Bayaguud Yanpeng Fu changbao zhu State Key Laboratory of Optoelectronic Materials and Technologies Department of Materials Science and EngineeringKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationSun-Yat Sen UniversityGuangzhou 510275GuangdongChina School of Materials and Energy Guangdong University of TechnologyGuangzhou 510006GuangdongChina

Featured with high power density,improved safety and low-cost,rechargeable aqueous zinc-ion batteries(ZIBs) have been revived as possible candidates for sustainable energy storage systems in recent ***,the challenges inherent in zinc(Zn) anode,namely dendrite formation and interfacial parasitic reactions,have greatly impeded their practical *** the critical issue of dendrite formation has attracted widespread concern,the parasitic reactions of Zn anodes with mildly acidic electrolytes have received very little *** that the low Zn reversibility that stems from interfacial parasitic reactions is the major obstacle to the commercialization of ZIBs,thorough understanding of these side reactions and the development of correlative inhibition strategies are ***,in this review,the brief fundamentals of corrosion and hydrogen evolution reactions at Zn surface is *** addition,recent advances and research efforts addressing detrimental side reactions are reviewed from the perspective of electrode design,electrode-electrolyte interfacial engineering and electrolyte *** facilitate the future researches on this aspect,perspectives and suggestions for relevant investigations are provided lastly.

关键词： Zinc anodes Mildly acidic electrolytes Side reactions Coulombic efficiency Corrosions HER

Anti-Corrosion and Reconstruction of Surface Crystal Plane for Zn Anodes by an Advanced Metal Passivation Technique

在线全文

学校读者我要写书评

暂无评论

Energy & Environmental Materials 2023年第4期6卷 166-172页

作者： Si Liu Hongxin Lin Qianqian Song Jian zhu changbao zhu State Key Laboratory of Optoelectronic Materials and Technologies Department of Materials Science and EngineeringKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationGuangzhou Key Laboratory of Flexible Electronic Materials and Wearable DevicesSun Yat-Sen UniversityGuangzhou 510275China

For the aqueous Zn-ion battery,dendrite formation,corrosion,and interfacial parasitic reactions are major issues,which greatly inhibits their practical *** to develop a method of Zn construction or treatment to solve these issues for Zn anodes are still great ***,a simple and cheap metal passivation technique is proposed for Zn anodes from a corrosion science *** to the metal anticorrosion engineering,the formed interfacial protective layer in a chemical way can sufficiently solve the corrosion ***,the proposed passivity approach can reconstruct Zn surface-preferred crystal planes,exposing more(002)planes and improving surface hydrophilicity,which inhibits the formation of Zn dendrites and hydrogen evolution *** expected,the passivated Zn achieves outstanding cycling life(1914 h)with low voltage polarization(<40 mV).Even at 6 mA cm^(−2) and 3 mA h cm^(−2),it can achieve stable Zn deposition over 460 *** treated Zn anode coupled with MnO_(2) cathode shows prominently reinforced full batteries service life,making it a potential Zn anode candidate for excellent performance aqueous Zn-ion *** proposed passivation approach provides a guideline for other metal electrodes preparation in various batteries and establishes the connections between corrosion science and batteries.

关键词： anti-corrosion aqueous zinc ion battery interfacial protective layer metal passivation technique reconstruction of surface crystal plane

Negatively charged insulated boron nitride nanofibers directing subsurface zinc deposition for dendrite-free zinc anodes

在线全文

学校读者我要写书评

暂无评论

Nano Research 2023年第1期16卷 403-410页

作者： Qianqian Song Jianli Liang Si Liu Yunting Zhang Jian zhu changbao zhu State Key Laboratory of Optoelectronic Materials and Technologies Department of Materials Science and EngineeringKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationGuangzhou Key Laboratory of Flexible Electronic Materials and Wearable DevicesSun Yat-Sen UniversityGuangzhou 510275China Department of Chemistry&Center of Super-Diamond and Advanced Films(COSDAF) City University of Hong KongHong Kong 999077China

The practical application of aqueous zinc-ion batteries(ZIBs)is limited by the growth of dendrite during *** to rationally design and construct an efficient artificial interface layer by selecting suitable building units to control the dendrite growth is still a ***,a porous boron nitride nanofibers(BNNFs)artificial interface layer was constructed,and its working mechanisms were revealed by both experiments(electrochemical characterization and in-situ optical microscope)and theoretical calculations(density functional theory(DFT)and finite element simulation).The insulated BNNFs layer leads to position-selected electroplating between BNNFs layer and Zn *** unique negatively charged surface and porosity of BNNFs contribute to the self-concentrating and pumping features of Zn ions,thus suppressing the concentration polarization on the Zn ***,densely arranged porous BNNFs have a shunt effect on Zn ions diffusion,resulting in uniform distributions of Zn ions and electric *** introduced BNNFs layer not only makes Zn deposition uniform but also restrains the dendrite growth,therefore the Zn+BNNFs symmetric cells perform ultralong stable cycling for 1,600 h at 1 mA·cm–2 and more than 500 h at 10 mA·cm–***,Zn+BNNFs||CNT/MnO2 battery presents a high initial capacity of 293.6 mAh·g–1 and an excellent retention rate of 97.6%at 1 A·g–1 after 400 cycles,while Zn||CNT/MnO2 battery only maintains 37.1%discharge *** artificial interface layer with negatively charged BNNFs exhibits excellent dendrite-inhibit and may have enormous prospects in other metal batteries.

关键词： boron nitride nanofiber dendrite-free Zn anodes Zn ion battery artificial interface layer negatively charged

Characteristics and realization of the second generation surface acoustic wave’s wavelet device

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 Systems Engineering and Electronics 2006年第3期17卷 467-472页

作者： Wen changbao zhu Changchun Lu Wenke Liu Qinghong Liu Junhua Inst. of Vacuum Microelectronics School of Electronics and Information Engineering Xi'an Jiaotong Univ. Xi'an 710049 P. R. China

To overcome the bulk acoustic wave （BAW）, the triple transit signals and the discontinuous frequency band in the first generation surface acoustic wave＇s （FGSAW＇ s） wavelet device, the full transfer multistrip coupler （MSC） is applied to implement wavelet device, and a novel structure of the second generation surface acoustic wave＇s （SGSAW＇s） wavelet device is proposed. In the SGSAW＇ s wavelet device, the BAW is separated and eliminated in different acoustic propagating tracks, and the triple transit signal is suppressed. For arbitrary wavelet scale device, the center frequency is three times the radius of frequency band, which ensures that the frequency band of the SGSAW＇s wavelet device is continuous, and avoids losing signals caused by the discontinuation of frequency band. Experimental result confirms that the BAW suppression, ripples in band, receiving loss and insertion loss of the SGSAW＇ s wavelet device are remarkably improved compared with those of the FGSAW＇ s wavelet device.

关键词： multistrip coupler wavelet device surface acoustic wave frequency band continuity.

High Power-High Energy Polyanionic Sodium Cathodes

在线全文

学校读者我要写书评

暂无评论

High Power-High Energy Polyanionic Sodium Cathodes

High Power-High Energy Polyanionic Sodium Cathodes

中国化学会2019能源材料和缺陷化学研讨会

作者： changbao zhu Department of Materials Science and Engineering Sun-Yat Sen University

Developing high power-high energy electrochemical energy storage systems is an ultimate goal in energy storage field, which is even more difficult but significant for low cost sodium ion batteries. According to the transport properties of electrodes, constructing an effective mixed conducting network is very helpful to improve the rate performance. We have successully fabricated NaV(PO) with ultrahigh rate performance, whose rate capability even outperforms lithium cathodes. However, the energy density of NaV(PO) is not satisfactory. We experimentally investigate and improve the transport properties of high energy NaV(PO)F, whose the rate capability of NaV(PO)F is still not comparable to NaV(PO). Here, for the first time we proposed a two-step strategy(solvothermal plus ESD method) to construct a bicontinuous ordered network of 3 D porous Na(VO)(PO) F/rGO(NVOPF/rGO). This two-step strategy makes sure that NVOPF can be prepared by ESD, since it can avoid the loss of F element during synthesis. The obtained NVOPF particles are as small as 15 nm(the minimum size ever reported), and the carbon content is only 3.5% in the final nanocomposite. Such bicontinuous ordered network and small size of electroactive particles lead to significant contribution of pseudocapacitance effect to sodium storage, resulting in real high power-high energy sodium cathodes. The cathode exhibits excellent rate capability and cycling stability, whose rate performance is one of the best ever reported in both half cells and full cells. Moreover, this work provides a general and promising strategy for developing high power-high energy electrode materials for various electrochemical energy storage systems.

关键词：

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

High Power-High Energy Polyanionic Sodium Cathodes

钠离子电池电极材料的设计策略——固态离子学视角

第33届全国化学与物理电源学术年会

作者： changbao zhu Department of Materials Science and Engineering Sun-Yat Sen University

关键词：

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

物理化学学报 2023年第3期39卷 10-26页

作者：傅焰鹏朱昌宝广东工业大学材料与能源学院广州510006 中山大学材料科学与工程学院广州510275

钠离子电池是目前最有前景及可行性的新兴储能候选体系。对于钠离子电池而言,如何实现其电极材料的理性设计及构筑,是重要的科学问题。本文立足于钠离子/电子输运这一核心问题,从固态离子学视角探讨钠离子电池电极材料的设计策略。首先... 详细信息

钠离子电池是目前最有前景及可行性的新兴储能候选体系。对于钠离子电池而言,如何实现其电极材料的理性设计及构筑,是重要的科学问题。本文立足于钠离子/电子输运这一核心问题,从固态离子学视角探讨钠离子电池电极材料的设计策略。首先,对于体相电极材料,输运特性的明晰、调控以及缺陷化学模型的建立,是传统电极材料开发的关键。其次,对于纳米电极材料,随着尺寸的减小,电极材料的热力学性质、动力学特性以及钠离子微观储输机制都会发生相应变化,因此从纳米离子学视角,以尺寸效应调控电极材料具有重要的科学价值及现实意义。最后,无论对于体相材料还是纳米材料,从材料的本征输运特性出发,通过电化学电路的设计和构筑来优化电极动力学,可以为钠电电极材料的理性设计及可控制备提供理论指导。我们相信,通过本文系统地对钠离子电池电极材料设计策略的梳理,必将对钠离子电池的开发,提供有意义的指导,并为最终的产业化打下良好的基础。

关键词：固态离子学纳米离子学钠离子电池电极材料输运特性缺陷化学尺寸效应电化学电路

维普期刊数据库博看期刊

Research on the deformation mechanism of flexural toppling deep-seated landslides based on large centrifuge physical model testing: A case study of the Genie landslide in the Tibetan Plateau

在线全文

学校读者我要写书评

暂无评论

Journal of Earth Science 2025年

作者： Shichao Cao Xiujun Dong changbao Guo Ruian Wu Zhihua Yang Guang Zheng Xiaoqiang zhu State Key Laboratory of Geohazard Prevention and Geoenvironment Protection， Chengdu University of Technology Institute of Geomechanics， Chinese Academy of Geological Sciences Key Laboratory of Active Tectonics and Geological Safety， Ministry of Natural Resources

Flexural toppling is a widespread failure mode in natural and excavated anti-inclined rock slopes of the eastern Tibetan Plateau， which can further evolve into large deep-seated landslides， posing significant threats to the construction and operation of important infrastructure. In this study， we took the large deep-seated Genie landslide as a case study and established a centrifuge physical model to analyze the deformation mechanism and evolutionary process of flexural toppling deep-seated landslides under the effect of gravity. The results indicate that the geomechanical mode of landslide instability is characterized by flexural toppling-shearing-sliding， with the deformation process could be divided into three stages: initial slow deformation stage marked by crack generation， rapid deformation stage characterized by the expansion and fracturing of cracks， and a low-speed deformation stage characterized by creep. Notably， the sliding surfaces do not adhere strictly to predefined bending zones but develop cracks along the bending parts， which gradually expand and penetrate deeper， eventually forming multiple potential sliding surfaces. The analysis of the entire process deformation evolution of flexural toppling deep-seated landslides suggests that the rapid deformation stage is the optimal time to take action for landslide prevention and control. The study demonstrates that the shear strength also plays a key factor in the evolution of flexural toppling. The research reveals the deformation mechanism and evolutionary process of large deep-seated landslides in deep-cut canyon areas， providing valuable reference for the prediction， assessment， and prevention of such slopes and landslides.

关键词：

Laser Powder Bed Fusion-built Ti6Al4V Bone Scaffolds Composed of Sheet and Strut-based Porous Structures: Morphology, Mechanical Properties, and Biocompatibility

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Mechanical Engineering(Additive Manufacturing Frontiers) 2022年第4期1卷 87-99页

作者： Shuai Ma Qian Tang changbao zhu Fuyou Wang Qixiang Feng Jun Song Rossitza Setchi Chenglong Ma Ran Tao State Key Laboratory of Mechanical Transmissions Chongqing UniversityChongqing400044China College of Mechanical Engineering Chongqing University of TechnologyChongqing400054China Cardiff School of Engineering Cardiff UniversityCardiffCF243A1United Kingdom Department of Orthopedics General Hospital of Xinjiang Military RegionUrumqi830099China Center for Joint Surgery Southwest HospitalThe Third Military Medical UniversityChongqing400038China School of Mechanical Engineering Jiangnan UniversityWuxi214122China School of Mechanical Engineering and Automation Harbin Institute of TechnologyShenzhen518055China

Laser powder bed fusion(L-PBF)-built triply periodic minimal surface(TPMS)structures are designed by implicit functions and are endowed with superior characteristics,such as adjustable mechanical properties and light-weight features for bone repairing;thus,they are considered as potential candidates for bone ***,previous studies have mainly focused on different TPMS *** fundamental understanding of the differences between strut and sheet-based structures remains exclusive,where both were designed by one *** consequently hinders their practical ***,we compared the morphology,mechanical properties,and biocompatibility of sheet and strut-based *** particular,the different properties and in vivo bone repair effects of the two structures are ***,the morphology characteristics demonstrate that the manufacturing errors of sheet-based structures with diverse porosities are comparable,and semi-melting powders as well as the ball phenomenon are observed;in comparison,strut-based samples exhibit cracks and thickness ***,the mechanical properties indicate that the sheet-based structures have a greater elastic modulus,energy absorption,and better repeatability compared to strut-based ***,layer-by-layer fracturing and diagonal shear failure modes are observed in strut-based and sheet-based structures,*** in vivo experiment demonstrates enhanced bone tissues in the strut-based *** study significantly enriches our understanding of TPMS structures and provides significant insights in the design of bone scaffolds under various bone damaging conditions.

关键词： Triply periodic minimal surface Bone repair Tissue engineering Mechanical properties Laser powder bed fusion

报纸编辑的基本规范及新闻专业学生采写实习研究

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

科教导刊 2015年第11X期 55-56页

作者：朱长宝河南经贸职业学院河南郑州450000

实习是大学生由学校走向社会、由理论走向实践的必由之路,也是锻造学生职业素养,帮助学生走上工作岗位的重要一环。实习发挥的重要作用就是把学到的文化理论知识有效运用到工作中去,用工作来检验、补充和提升从课本上学到的知识和技能... 详细信息

实习是大学生由学校走向社会、由理论走向实践的必由之路,也是锻造学生职业素养,帮助学生走上工作岗位的重要一环。实习发挥的重要作用就是把学到的文化理论知识有效运用到工作中去,用工作来检验、补充和提升从课本上学到的知识和技能。有效的实习就是用理论去指导实践,用实践去证明理论。

关键词：实习新闻采编专业规划