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Innovative dual-mode device integrating capacitive desalination and solar vapor generation for high-efficiency seawater desalination

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Journal of Energy Chemistry 2025年第1期 171-179页

作者： jiacheng wang Zhaoyu Chen Ruduan Yuan Jiaxin Luo Ben Zhang Keju Ji Meng Li Juanxiu Xiao Kuan Sun National Innovation Center for Industry-Education Integration of Energy Storage Technology MOE Key Laboratory of Low-grade Energy Utilization Technologies and SystemsCollege of Energy & Power Engineering Chongqing University Xuefeng Mountain Energy Equipment Safety National Observation and Research Station CQU-NUS Renewable Energy Materials & Devices Joint Laboratory Chongqing University Southwest Technology and Engineering Research Institute Jiangsu Provincial Key Laboratory of Bionic Functional Materials College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and Astronautics State Key Laboratory of Marine Resources Utilization in South China Sea Collaborative Innovation Center of Marine Science and Technology School of Marine Science and Engineering Hainan University

Solar-driven interface evaporation with high solar-to-steam conversion efficiency has shown great potential in seawater ***,due to the influence of latent heat and condensation efficiency,the water yield from solar-driven interface evaporation remains insufficient,posing a significant challenge that requires *** this work,we designed a dual-mode high-flux seawater desalination device that combines solar-driven interface evaporation and capacitive *** utilizing coupled desalination materials exhibiting both photothermal conversion and capacitance activity,the device demonstrated photothermal evaporation rates of 1.41 and 0.97 kg m-2h-1for condensate water yield under one-sun ***,the device exhibited a salt adsorption capacity of up to48 mg g-1and a salt adsorption rate of 2.1 mg *** addition,the salt adsorption capacity increased by approximately 32% under one-sun ***,photo-enhanced capacitive desalination performance was explored through numerical simulations and theoretical *** calculations and characterizations confirmed that the defect energy levels formed by the introduction of sulfur vacancies can effectively widen the light absorption range,improve photothermal conversion performance,and stimulate more photoelectrons to participate in capacitive ***,the electron distribution state of molybdenum disulfide with sulfur vacancies and surface defect sites contributes to ion/electron transport at the solid-liquid *** work provides a novel pathway for integrating solar vapor generation with other low-energy desalination technologies.

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Anode Interfacial Issues in Solid-State Li Batteries:Mechanistic Understanding and Mitigating Strategies

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Energy & Environmental Materials 2023年第4期6卷 384-404页

作者： jiacheng wang Liquan Chen Hong Li Fan Wu Tianmu Lake Institute of Advanced Energy Storage Technologies Liyang 213300China Henry Royce Institute and Department of Materials School of Natural SciencesThe University of ManchesterManchester M139PLUK Yangtze River Delta Physics Research Center Liyang 213300China Beijing Advanced Innovation Center for Materials Genome Engineering Key Laboratory for Renewable EnergyBeijing Key Laboratory for New Energy Materials and DevicesInstitute of PhysicsChinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Nano Science and Technology Institute University of Science and Technology of ChinaSuzhou 215123China

All-solid-state Li metal batteries(ASSLBs)using inorganic solid electrolyte(SE)are considered promising alternatives to conventional Li-ion batteries,offering improved safety and boosted energy *** significant progress has been made on improving the ionic conductivity of SEs,the degradation and instability of Li metal/inorganic SE interfaces have become the critical challenges that limit the coulombic efficiency,power performance,and cycling stability of *** the mechanisms of complex/dynamic interfacial phenomena is of great importance in addressing these ***,recent studies on identifying,understanding,and solving interfacial issues on anode side in ASSLBs are comprehensively *** issues at Li metal/SE interface include Li dendrite growth/propagation,SE cracking,physical contact loss,and electrochemical reactions,which lead to high interfacial resistance and cell *** causes of these issues relating to the chemical,physical,and mechanical properties of Li metal and SEs are systematically ***,effective mitigating strategies are summarized and their effects on suppressing interfacial reactions,improving interfacial Li-ion transport,maintaining interfacial contact,and stabilizing Li plating/stripping are *** in-depth mechanistic understanding of interfacial issues and complete investigations on current solutions provide foundations and guidance for future research and development to realize practical application of high-performance ASSLB.

关键词： all-solid-state Li metal batteries anode interfacial issues interface protection and modification interfacial reaction and evolution li dendrite growth

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A numerical study on tread wear and fatigue damage of railway wheels subjected to anti-slip control

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Friction 2023年第8期11卷 1470-1492页

作者： Yunfan YANG Liang LING jiacheng wang Wanming ZHAI State Key Laboratory of Traction Power Southwest Jiaotong UniversityChengdu 610031China

Tread wear and rolling contact fatigue (RCF) damage propagated on railway wheels are the two extremely important focal points as they can tremendously deteriorate wheel/rail interactions and hunting stability and destroy wheel surface materials, and subsequently, cut down the lifetime of the wheels. The on-board anti-slip controllers are of essence aiming to hold back the striking slipping of the powered wheelsets under low-adhesion wheel/rail conditions. This paper intends to investigate the impact of anti-slip control on wheel tread wear and fatigue damage under diverse wheel/rail friction conditions. To this end, a prediction model for wheel wear and fatigue damage evolution on account of a comprehensive vehicle–track interaction model is extended, where the wheel/rail non-Hertzian contact algorithm is used. Furthermore, the effect of frictional wear on the fatigue damage at wheel surface is considered. The simulation results indicate that the wheel/rail contact is full-slip under the low-adhesion conditions with braking effort. The wear amount under the low-adhesion conditions is observably higher than that under the dry condition. It is further suggested that the wheel tread is prone to suffering more serious wear and fatigue damage issues with a higher anti-slip control threshold compared to that with a lower one.

关键词： anti-slip control wheel/rail non-Hertzian contact adhesion condition wheel tread wear fatigue damage

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Microstructure and kinetics of hot deformation WE43 magnesium alloy

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Rare Metals 2008年第4期27卷 405-409页

作者： GAO jiacheng wang Qiang wang Yong LI Wei NIU Wenjuan College of Materials Science and Engineering National Engineering Research Center for Magnesium Alloys Chongqing University Chongqing 400044 China

The effect of compression on the microstructures and flow behavior of WE43 magnesium alloy was investigated in this article. The relationship between flow stress and strain rate was discussed. According to the empirical formula ε = Aδ^n exp （-Q/R T）, the value of heat activation of WE43 magnesium alloys is 297,15 kJ/mol. A mechanism of deformation softening of WE43 alloy in testing hot deformation was identified to be dynamic recrystallization.

关键词： WE43 magnesium alloy hot deformation microstructure kinetics

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LPR-Trie: A Fast IPv6 Routing Lookup Algorithm with Virtual Nodes

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China Communications 2022年第10期19卷 1-11页

作者： Wenlong Chen Diya Liu jiacheng wang Xiaolan Tang The College of Information Engineering Capital Normal UniversityBeijing 100048China

The number of IPv6 routes in todays backbone routers has grown rapidly,which has put tremendous pressure on route lookup and *** on the analysis of IPv6 address prefix length and distribution characteristics,this paper proposes an IPv6 route lookup architecture called *** core idea of the algorithm is to utilize more spaces and accelerate routing ***,we put forward the concept of virtual nodes,and leverage the link between virtual nodes and ordinary nodes to accelerate routing *** provide the longest prefix routing entry(LPR)calculation algorithm to achieve the longest prefix *** experimental results show that the virtual node mechanism increases the search speed up to 244%,and the virtual nodes have better stability by setting an appropriate keep-alive time according to the characteristics of actual *** paper shows that our design improves the routing lookup speed and have better memory utilization.

关键词： IPv6 route lookup longest prefix match virtual node Trie

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Self-assembled small molecule natural product gel for drug delivery:a breakthrough in new application of small molecule natural products

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Acta Pharmaceutica Sinica B 2020年第5期10卷 913-927页

作者： Kangkang Zhi jiacheng wang Haitian Zhao Xin Yang School of Chemistry and Chemical Engineering Harbin Institute of TechnologyHarbin 150000China

Natural products,as a gift of nature to humanity,have long been used as drugs or pharmacological actives to help people cure various *** we still know comparatively little about their ability to be *** recent years,some small molecule natural products isolated from traditional Chinese medicines have been found to have new features,namely,self-assembly to form gels(i.e.,natural product gels,NPG).However,the application development of these natural products is seriously lacking,which greatly weakens their practical value and delays the maturity of the ***,a series of selfassembled triterpenoid natural products are used as materials(gel scaffolds)to construct drug delivery ***,these NPG not only exhibit the excellent self-healing,controlled gelation,good safety and sustained release,but also achieve synergistic treatment of tumors through bioactive natural *** with non-bioactive gel scaffolds,NPG scaffolds show great advantages in tumor therapy,including optimal tumor inhibition,preferable health,better body recovery,stronger immune function,less toxic side effects and longer *** successful construction of NPG scaffolds not only takes full advantage of the self-assembled natural products,but also takes an important step in the development of new applications for natural products.

关键词： Natural products Gels Self-assembly Drug delivery Antitumor

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Prediction of coal structure using particle size characteristics of coalbed methane well cuttings

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International Journal of Mining Science and Technology 2019年第2期29卷 209-216页

作者： Shuaifeng Lv Shengwei wang Rui Li Guoqing Li Ming Yuan jiacheng wang Faculty of Earth Resources China University of Geosciences (Wuhan) State Key Laboratory of Coal and CBM Co-mining Cockrell School of Engineering University of Texas at Austin

Severely deformed coal seams barely deliver satisfactory gas production. This research was undertaken to develop a new method to predict the positions of deformed coals for a horizontal CBM well. Firstly, the drilling cuttings of different structure coals were collected from a coal mine and compared. In light of the varying cuttings characteristics for different structure coals, the coal structure of the horizontally drilled coal seam was predicted. And the feasibility of this prediction method was discussed. The result shows that exogenetic fractures have an important influence on the deformation of coal seams. The hardness coefficient of coal decreases with the deformation degree in the order of primary structural, cataclastic and fragmented coal. And the expanding-ratio of gas drainage holes and the average particle size of cuttings increase with the increase of the deformation degree. The particle size distribution of coal cuttings for the three types of coals is distinctive from each other. Based on the particle size distribution of cuttings from X-2 well in a coal seam, six sections of fragmented coal which are unsuitable for perforating are predicted. This method may benefit the optimization of perforation and fracturing of a horizontal CBM well in the study area.

关键词： Coal structure Gas drainage boreholes Particle size distribution of coal cuttings Directional CBM well Optimization of perforation

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Model of Surface Texture for Honed Gear Considering Motion Path and Geometrical Shape of Abrasive Particle

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Chinese Journal of Mechanical Engineering 2023年第4期36卷 311-325页

作者： Yuhu Liu Xiaohui Huang Huajun Cao jiacheng wang Huapan Xiao College of Mechanical and Vehicle Engineering Chongqing UniversityChongqing 400044China State Key Laboratory of Mechanical Transmissions Chongqing UniversityChongqing 400044China

Gear power-honing is mainly applied to finish small and medium-sized automotive gears,especially in new energy *** distinctive curved surface texture greatly improves the noise emission and service life of honed *** surface texture for honed gear considering the motion path and geometrical shape of abrasive particles has not been *** this paper,the kinematics of the gear honing process is analyzed,and the machining marks produced by the abrasive particles of honing wheel scratching abrasive particles against the workpiece gear are *** tooth surface roughness is modeled considering abrasive particle shapes and material plastic *** results in a mathematical model that characterizes the structure of the tooth surface and the orientation of the machining *** were used to verify the model,with a maximum relative error of less than 10%when abrasive particles are *** on this model,the effects of process parameters on the speeds of discrete points on the tooth flank,orientations of machining marks and roughness are *** results show that the shaft angle between the workpiece gear and the honing wheel and the speed of the honing wheel is the main process parameters affecting the surface *** research proposes a surface texture model for honed gear,which can provide a theoretical basis for optimizing process parameters for gear power-honing.

关键词： Hardened gear Gear power-honing Surface texture Roughness

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Recent Advances on Boosting the Cell Voltage of Aqueous Supercapacitors

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Nano-Micro Letters 2020年第8期12卷 60-81页

作者： Qianzhi Gou Shuang Zhao jiacheng wang Meng Li Junmin Xue MOE Key Laboratory of Low-Grade Energy Utilization Technologies and Systems CQU-NUS Renewable Energy Materials and Devices Joint LaboratorySchool of Energy and Power EngineeringChongqing UniversityChongqing 400044People’s Republic of China Department of Materials Science and Engineering CQU-NUS Renewable Energy Materials and Devices Joint LaboratoryNational University of SingaporeSingapore 117573Singapore

Due to its ultra-fast charge/discharge rate,long cyclic life span,and environmental benignity,aqueous supercapacitor(SC)is considered as a proper nextgeneration energy storage ***,limited by undesirable water electrolysis and unreasonable electrode potential range,aqueous SC normally generates a narrow cell voltage,resulting in a low energy *** address such challenge,enormous efforts have been made to construct high-voltage aqueous *** these achievements,the systematic reviews about this field are still *** fill this knowledge gap,this review summarizes the recent advances about boosting the cell voltage of aqueous *** the viewpoint of electrode,doping alkali cations,modulating the electrode mass ratio,and optimizing the surface charge density are regarded as three effective pathways to achieve this ***,adjusting the appropriate pH level,introducing redox mediators,and constructing“water-in-salt”electrolyte are other three universal routes from the electrolyte ***,it is also effective to obtain the high-voltage aqueous SCs through asymmetric design,such as designing asymmetric *** confronting challenges and future development tendency towards the high-voltage aqueous SCs are further discussed.

关键词： Aqueous supercapacitors Cell voltage Electrodes Electrolytes Asymmetric design

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Vertical 3D Nanostructures Boost Efficient Hydrogen Production Coupled with Glycerol Oxidation Under Alkaline Conditions

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Nano-Micro Letters 2023年第10期15卷 609-621页

作者： Shanlin Li Danmin Liu Guowei wang Peijie Ma Xunlu wang jiacheng wang Ruguang Ma Key Laboratory of Advanced Functional Materials Ministry of EducationFaculty of Materials and ManufacturingBeijing University of TechnologyBeijing 100124People’s Republic of China The State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050People’s Republic of China School of Materials Science and Engineering Suzhou University of Science and Technology99 Xuefu RoadSuzhou 215011People’s Republic of China School of Materials Science and Engineering Taizhou UniversityTaizhou 318000People’s Republic of China Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials College of Materials Science and EngineeringNorth China University of Science and TechnologyTanshang 063210People’s Republic of China

Hydrogen production from electrolytic water is an important sustainable technology to realize renewable energy conversion and carbon ***,it is limited by the high overpotential of oxygen evolution reaction(OER)at the *** reduce the operating voltage of electrolyzer,herein thermodynamically favorable glycerol oxidation reaction(GOR)is proposed to replace the ***,vertical Ni O flakes and NiMoNH nanopillars are developed to boost the reaction kinetics of anodic GOR and cathodic hydrogen evolution,***,excluding the explosion risk of mixed H_2/O_(2),a cheap organic membrane is used to replace the expensive anion exchange membrane in the ***,the electrolyzer delivers a remarkable reduction of operation voltage by 280 mV,and exhibits good long-term *** work provides a new paradigm of hydrogen production with low cost and good feasibility.

关键词： Hydrogen evolution reaction Glycerol oxidation reaction Oxygen evolution reaction Flow cell Nanostructure

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