检索结果-南通市图书馆

A review on graphite surface modification methods towards low carbon-containing refractories

在线全文

学校读者我要写书评

暂无评论

Journal of Iron and Steel Research(International) 2024年第6期31卷 1291-1303页

作者： Ting-ting Zhang Jun Ding Bei-yue Ma Zheng-long Liu Chao Yu Cheng-ji Deng The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081HubeiChina School of Metallurgy Northeastern UniversityShenyang 110819LiaoningChina

The rapid development of iron and steel metallurgy technology has promoted the continuous innovation and iteration of carbon-containing refractories for clean steel *** meet the high-quality requirements for clean steel production and full exploit the performance advantages of carbon-containing refractories in dynamic smelting environment,it is necessary to explore the role of graphite and modified graphite in carbon-containing *** on this,graphite surface modification methods,including surfactants,surface oxidation,and surface coating,and their applications in carbon-containing refractories are *** advantages and disadvantages of each method are analyzed for practical ***,combined with the existing problems,the application prospect of improved graphite in carbon-containing refractories is discussed.

关键词： Graphite Carbon-containing refractory Clean steel surface modification Service performance

surface modification of CeO_(2-x) nanorods with Sn doping for enhanced nitrogen electroreduction

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12期87卷 400-407,I0011页

作者： Yuhang Xiao Xiaohong Tan Yingying Guo Jianpo Chen Weidong He Hao Cui Chengxin Wang School of Materials Science and Engineering Sun Yat-sen UniversityGuangzhou 510275GuangdongChina The Key Laboratory of Low-Carbon Chemistry&Energy Conservation of Guangdong Province Sun Yat-sen UniversityGuangzhou 510275GuangdongChina

While the electrochemical nitrogen reduction reaction(NRR) represents a prospective blueprint for environmentally renewable ammonia generation,it has yet to overcome the limitations of weak activity and inferior *** this regard,surface modification tactic was constructed to markedly enhance the activity and selectivity via introducing Sn atoms into the surface of defective cerium oxide(denoted as Sn-CeO_(2-x)) as the active and robust electrocatalyst for NRR under benign *** introduction of Sn atoms in CeO_(2-x)can not only inhibit the HER activity of the catalyst but also modulate the electronic structure of ceria and optimize N-Ce interaction,thus enhancing NRR activity and *** all previous CeO_(2)-based NRR catalysts,this catalyst has demonstrated an ammonia yield rate of 41.1 μg mg_(cat)^(-1) h^(-1) and an exceptional Faradic efficiency of 35.3%.This work presents a viable approach for the development of advanced NRR electrocatalysts.

关键词： Ceria-based materials Nitrogen reduction reaction Sn-doping surface modification Electrocatalysis

surface modification techniques of membranes to improve their antifouling characteristics:recent advancements and developments

在线全文

学校读者我要写书评

暂无评论

Frontiers of Chemical Science and Engineering 2023年第12期17卷 1837-1865页

作者： Muhammad Tawalbeh Haya Aljaghoub Muhammad Qasim Amani Al-Othman Sustainable and Renewable Energy Engineering Department University of SharjahSharjah 27272United Arab Emirates Sustainable Energy&Power Systems Research Centre RISEUniversity of SharjahSharjah 27272United Arab Emirates Industrial Engineering and Engineering Management Department University of SharjahSharjah 27272United Arab Emirates Department of Chemical and Biological Engineering American University of SharjahSharjah 26666United Arab Emirates Materials Science and Engineering Program College of Arts and SciencesAmerican University of SharjahSharjah 26666United Arab Emirates

Extensive research efforts are currently devoted to developing and improving conventional technologies for water treatment. Membrane-based water treatment technologies are among the most preferred options due to their commercial success, simple operation, low energy and space requirements, and high separation efficiency. Despite the advances made in membrane-based technologies, fouling remains a critical challenge. Fouling occurs upon the accumulation of unwanted impurities on the membrane surface and within the membrane pores which results in a significant decline in the membrane permeate flux. To alleviate the operational challenges from fouling, surface modification to develop antifouling membranes appears to be an effective technique. A comprehensive review of the surface modification techniques for the development of antifouling membranes is provided in this paper. Chemical surface modification techniques (grafting and plasma treatment), physical modification techniques (blending, coating, adsorption, and thermal treatment), and combined physical and chemical modification techniques have been discussed. Moreover, the challenges related to surface modification and the future research directions are addressed.

关键词： fouling antifouling membrane surface modification membrane pretreatment

surface modification of ZnIn2S4 layers to realize energy-transfer-mediated photocatalysis

在线全文

学校读者我要写书评

暂无评论

National Science Review 2022年第10期9卷 120-125页

作者： Xianshun Sun Xiao Luo Sen Jin Xiaodong Zhang Hui Wang Wei Shao Xiaojun Wu Yi Xie Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Institute of Energy Hefei Comprehensive National Science Center

Photocatalytic selective aerobic oxidation reactions are crucial in designing advanced organic intermediates,but suffer from low conversion ***,activating1O2to create suitable reactive oxygen species,such as singlet oxygen(1O2),can significantly increase the yield of desired ***,using ZnIn2S4nanosheets as a model system,we build a surface-modified theoretical structure,where a surface-covered non-conductive macromolecular chain,polyvinyl pyrrolidone(PVP),is bound to ZnIn2S4and influences the O2adsorption *** on the surface significantly changes the electronic structure and suppresses electron conduction of ***,abundantly photogenerated and long-lived species transfer their energy to physically absorbed O2to efficiently generate1O2,which can oxidize sulphides into their corresponding *** sulphoxidation of different sulphides,surface modification brings a3-9-fold increase in conversion efficiency and high selectivities> 9 8 %.This study provides a feasible way of boosting1O2-generation-related photocatalytic reactions.

关键词： surface modification long-lived species energy transfer singlet oxygen photocatalytic sulphoxidation of sulphides

surface modification of magnesium alloys using thermal and solid-state cold spray processes:Challenges and latest progresses

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Magnesium and Alloys 2022年第8期10卷 2025-2061页

作者： Mohammadreza Daroonparvar Hamid Reza Bakhsheshi-Rad Abbas Saberi Mahmood Razzaghi Ashish K Kasar Seeram Ramakrishna Pradeep L.Menezes Manoranjan Misra Ahmad Fauzi Ismail Safian Sharif Filippo Berto Department of Mechanical Engineering University of NevadaRenoNV89501USA Advanced Materials Research Center Department of Materials EngineeringNajafabad BranchIslamic Azad UniversityNajafabadIran Department of Mechanical Engineering National University of Singapore9 Engineering Drive 1Singapore 117576Singapore Department of Chemical and Materials Engineering University of NevadaRenoNV89501USA Advanced Membrane Technology Research Center(AMTEC) Universiti Teknologi MalaysiaJohor Bahru 81310JohorMalaysia Faculty of Engineering Universiti Teknologi MalaysiaJohor Bahru 81310JohorMalaysia Department of Mechanical and Industrial Engineering Norwegian University of Science and Technology7491 TrondheimNorway

Potential engineering applications of magnesium(Mg)and Mg-based alloys,as the lightest structural metal,have made them a popular subject of ***,the inferior corrosion and wear characteristics significantly limit their application *** is widely recognized that surface treatment is the most commonly utilized technique for remarkably improving a substrate’s surface *** methods have been introduced for the surface treatment of Mg and Mg-based alloys to improve their corrosion behavior and tribological *** these,thermal spray(TS)technology provides several methods for deposition of various functional metallic,ceramic,cermet,or other coatings tailored to particular *** researches have shown the tremendous potential for thermal spray coated Mg alloys for biomedical and industrial *** this context,the cold spray(CS)method,as a comparatively new TS coating technique,can generate the coating layer using kinetic energy rather than combined thermal and kinetic energies,like the high-velocity oxy-fuel(HVOF)spray ***,the CS process,as a revolutionary method,is able to repair and refurbish with a faster turnaround time;it also provides solutions that do not require dealing with the thermal stresses that are part of the other repair processes,such as welding or other TS processes using a high-temperature *** this review paper,the recently designed coatings that are specifically applied to Mg alloys(primarily for industrial applications)employing various coating processes are *** of the increased utilization of CS technology for both 3D printed(additively manufactured)coatings and repair of structurally critical components,the most recent CS methods for the surface treatment,repair,and refurbishment of Mg alloys as well as their benefits and restrictions are then discussed and reviewed in ***,the prospects of this field of study are briefly discussed,along with a summa

关键词： Mg-based alloys surface modification Thermal and cold spray processes Corrosion behavior Wear resistance

surface modification of Li_(3)InCl_(6)provides superior electrochemical performance for LiMn_(2)O_(4)cathode materials

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2023年第5期34卷 505-508页

作者： Yixun Gu Kuan Yang Hongbin Yao Weijian Li Haiqing Zhan Xianquan Ming Guanhan Huang Guiliang Li Feng Zhan School of Resources Environment and Materials Guangxi UniversityNanning 530004China South Manganese Group Limited Nanning 530000China

Li Mn_(2)O_(4)(LMO)is the substance of choice for small and medium-sized energy storage materials in daily *** this work,Li3InCl6(LIC)is prepared on the surface of LiMn_(2)O_(4)by hydrothermal method using InCl_(3)and LiCl as raw *** method stabilizes the LMO crystal structure by uniformly coating the LIC on the LMO surface and effectively maintains the morphology of LMO crystals during the cycling *** and EDS analysis confirm the morphology and homogeneity of the synthesized material LIC on the LMO *** prepared material is put into a battery,and the charge-discharge test is carried out at 0.5 C and 1 *** results show that the LIC surface-modified samples exhibit more than 6%higher cycling performance than the unmodified samples after long cycling.

关键词： Li-ion batteries Cathode material LiMn_(2)O_(4) Li_(3)InCl_(6) surface modification

surface modification of silicone rubber by CF4 radio frequency capacitively coupled plasma for improvement of flashover

在线全文

学校读者我要写书评

暂无评论

Plasma Science and Technology 2022年第2期24卷 107-116页

作者：王晨旭张波陈思乐孙宇豪杨雄彭雅楠陈星宇张冠军 State Key Laboratory of Electrical Insulation and Power Equipment School of Electrical EngineeringXi'an Jiaotong UniversityXi'an 710049People's Republic of China School of Electrical and Information Engineering Anhui University of TechnologyMa'anshan 243032People's Republic of China

The flashover performance of insulating materials plays an important role in the development of high-voltage insulation *** this paper,silicone rubber(SIR)is modified by CF4 radio frequency capacitively coupled plasma(CCP)for the improvement of surface insulation *** discharge mode and active particles of CCP are diagnosed by the digital single-lens reflex and the *** electron microscopy and x-ray photoelectron spectroscopy are used for the surface physicochemical properties of samples,while the surface charge dissipation,charge accumulation measurement,and flashover test are applied for the surface electrical *** results show that the fluorocarbon groups can be grafted and the surface roughness increases after plasma ***,the surface charge dissipation is decelerated and the positive charge accumulation is inhibited obviously for the treated ***,the surface flashover voltage can be increased by 26.67%after 10 min of *** is considered that strong electron affinity of C–F and increased surface roughness can contribute to deepening surface traps,which not only inhibits the development of secondary electron emission avalanche but also alleviates the surface charge accumulation and finally improves the surface flashover voltage of SIR.

关键词： silicon rubber CF4 radio frequency capacitively coupled plasma surface modification flashover

Different surface modification methods and coating materials of zinc metal anode

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2022年第3期31卷 397-412,I0011页

作者： Feng Tao Yong Liu Xinyuan Ren Jing Wang Yazhou Zhou Yingjie Miao Fengzhang Ren Shizhong Wei Jianmin Ma Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal New Materials and Advanced Processing Technology Henan Key Laboratory of Non-Ferrous Materials Science&Processing TechnologySchool of Materials Science and EngineeringHenan University of Science and TechnologyLuoyang 471023HenanChina National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials Henan Key Laboratory of High-Temperature Structural and Functional MaterialsHenan University of Science and TechnologyLuoyang 471003HenanChina School of Art&Design Henan University of Science and TechnologyLuoyang 471023HenanChina School of Physics and Electronics Hunan UniversityChangsha 410082HunanChina School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731SichuanChina

Rechargeable aqueous Zn-ion batteries(AZIBs)are one of the most promising energy storage devices for large-scale energy storage owing to their high specific capacity,eco-friendliness,low cost and high ***,zinc metal anodes suffer from severe dendrite growth and side reactions,resulting in the inferior electrochemical performance of *** address these problems,surface modification of zinc metal anodes is a facile and effective method to regulate the interaction between the zinc anode and an *** this review,the current challenges and strategies for zinc metal anodes are ***,recent advances in surface modification strategies to improve their electrochemical performance are concluded and ***,challenges and prospects for future development of zinc metal anodes are *** hope this review will be useful for designing and fabricating highperformance AZIBs and boosting their practical applications.

关键词： Zn-ion batteries Zinc metal anode surface modification Solvent casting method Wet chemistry method

Structure and surface modification of MXene for efficient Li/K-ion storage

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2022年第12期75卷 330-339,I0009页

作者： Keke Guan Long Dong Yingying Xing Xuke Li Jin Luo Quanli Jia Haijun Zhang Shaowei Zhang Wen Lei The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081HubeiChina Henan Key Laboratory of High Temperature Functional Ceramics Zhengzhou UniversityZhengzhou 450052HenanChina College of Engineering Mathematics and Physical SciencesUniversity of ExeterExeter Ex44QFUnited Kingdom

In this paper,three-dimensional(3D)hollow Ti_(3)C_(2)T_(x)MXene tubes(HTCTs)with more–O terminal groups and fewer–F groups are successfully prepared via the template-oriented electrostatic self-assembly and the subsequent annealing *** obtained 3D hollow structure with large specific surface area,unique porous structure,and enlarged interlayer spacing could prevent the re-stacking of twodimensional(2D)sheets and shorten the diffusion pathway of ***,density functional theory(DFT)calculations and electrochemical tests reveal that Ti_(3)C_(2)O_(2)MXene possesses higher adsorption ability and lower diffusion barrier for K^(+)and Li^(+)compared to Ti_(3)C_(2)MXene dominated by–F terminal *** from the synergistic effect of the structural design and surface modification,the asprepared 3D HTCTs exhibit excellent electrochemical performance as anodes for K^(+)and Li^(+)storage compared with 2D Ti_(3)C_(2)T_(x)sheets(TCSs).

关键词： Hollow Ti_(3)C_(2)T_(x)tubes surface modification Anodes K^(+)storage Li^(+)storage