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Preparation of Ultra-nano Talcum in Sand Mill and Its Application in the Polypropylene

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Journal of Wuhan University of technology(Materials science) 2013年第1期28卷 12-16页

作者：宋娜 ZHANG Xiaoji SHI Liyi 丁鹏 FU Yi PENG Zhihong Research Center of Nanoscience and Nanotechnology Shanghai University Dongguan-SHU Institute of Nanotechnology (DSINT) guangdong silver age sci & tech co. Ltd.

The grinding of ultra-fine talcum powder and its application in a polypropylene （PP） matrix were investigated. Ultra-fine talcum powder was prepared by adjusting the grinding parameters of the physical milling process. The talcum powder exhibited polymodal distribution. The layered morphology of talcum particles in a horizontal sand mill was rarely damaged or destroyed. PP-talcum nanoco.posites were prepared by melt blending using a twin-screw extruder. Nano talcum can be seen as a single particle, although it is not very apparent. The bending strength of talcum-filled PP was gradually increased by approximately 28%. The impact strength linearly decreased as the filler weight ratio increased. The overall maximum improvement in mechanical properties was reco.ded when the filler ratios increased from 15 wt% to 20 wt%.

关键词： inorganic mineral material ultra-fine talc powder polypropylene bending modulus

Hierarchical porous carbon derived from Allium cepa for supercapacitors through direct carbonization method with the assist of calcium acetate

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Chinese Chemical Letters 2017年第12期28卷 2295-2297页

作者： Jinhui Xu Wenli Zhang Dianxun Hou Weimin Huang Haibo Lin co.lege of Chemistry Jilin UniversityChangchun 130012China Department of Civii Environmentaland Architectural EngineeringUniversity of Colorado BoulderBoulder CO 80309USA guangdong Guanghua sci-tech co. Ltd.Shantou 515061China

In this paper, a direction carbonization method was used to prepare porous carbon from Allium cepa for supercapacitor applications. In this method, calcium acetate was used to assist carbonization process. Scanning electron microsco.e （SEM） and N2 adsorption/desorption method were used to characterize the morphology, Brunauer-Emmett-Teller （BET） specific surface area and pore size distribution of porous carbon derived from Allium cepa （onion derived porous carbon, OPC）. OPC is of hierarchical porous structure with high specific surface area and relatively high specific capacitance. OPC possesses relatively high specific surface area of 533.5 m2Jg. What＇s more, OPC possesses a specific capacitance of 133.5 Fig at scan rate of 5 mV/s.

关键词： Porous carbon Supercapacitor Allium cepa Hierarchical porous carbon Direct pyrolysis Biomass

Progress in niobium-based oxides as anode for fast-charging Li-ion batteries

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Energy Reviews 2023年第2期2卷 62-79页

作者： Fuqiang Xie Junling Xu Qizhong Liao Qingqing Zhang Binyun Liu Lianyi Shao Junjie Cai Xiaoyan Shi Zhipeng Sun Ching-Ping Wong School of Materials and Energy Guangdong University of TechnologyGuangzhou510006China Guangzhou Nano New Material technology co. Ltd.Guangzhou510006China Guanghua Institute of sci-tech(guangdong)co. Ltd.Guangzhou510006China School of Materials science and Engineering Georgia Institute of TechnologyAtlantaGAUnited States

With the increasing popularity of electric/hybrid vehicles and the rapid development of 3C electronics,there is a growing interest in high-rate energy storage *** rapid development and widespread adoption of lithiumion batteries(LIBs)can be attributed to their numerous advantages,including high energy density,high operating voltage,environmental friendliness,and lack of memory ***,the progress of LIBs is currently hindered by the limitations of energy storage materials,which serve as vital ***,there is an urgent need to address the development of a new generation of high-rate energy storage materials in order to overco.e these limitations and further advance LIB ***-based oxides have emerged as promising candidates for the fabrication of fast-charging Li-ion batteries due to their excellent rate capability and long *** review paper provides a co.prehensive analysis of the fundamentals,methodologies,and electrochemistries of niobium-based oxides,with a specific focus on the evolution and creation of crystal phases of Nb_(2)O_(5),fundamental electrochemical behavior,and modification methods including morphology modulation,co.posite technology,and carbon ***,the review explores Nb_(2)O_(5)-derived co.pounds and related advanced characterization ***,the challenges and issues in the development of niobiumbased oxides for high-rate energy storage batteries are discussed,along with future research perspectives.

关键词： Energy storage materials Fast-charging Li-ion batteries Niobium-based oxides Modification Nb_(2)O_(5)-Derived co.pounds Advanced characterization techniques

Performance simulation method and state of health estimation for lithium-ion batteries based on aging-effect co.pling model

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Green Energy and Intelligent Transportation 2023年第3期2卷 16-29页

作者： Deyu Fang Wentao Wu Junfu Li Weizhe Yuan Tao Liu Changsong Dai Zhenbo Wang Ming Zhao School of Automotive Engineering Harbin Institute of TechnologyWeihai 264209ShandongChina School of New Energy Harbin Institute of TechnologyWeihai 264209ShandongChina guangdong Guanghua sci-tech co. Ltd.Shantou 515000GuangdongChina School of Chemical Engineering and Chemistry Harbin Institute of TechnologyHarbin 150001HeilongjiangChina School of Energy science and Engineering Harbin Institute of TechnologyHarbin 150001HeilongjiangChina Zhuhai Zhongli New Energy sci-tech co. Ltd.Zhuhai 519000GuangdongChina

Accurate simulation of characteristics performance and state of health(SOH)estimation for lithium-ion batteries are critical for battery management systems(BMS)in electric *** simplified electrochemical model(SEM)can achieve accurate estimation of battery terminal voltage with less co.puting *** ensure the applica-bility of life-cycle usage,degradation physics need to be involved in SEM *** work co.ducts deep analysis on battery degradation physics and develops an aging-effect co.pling model based on an existing improved single particle(ISP)***,three mechanisms of solid electrolyte interface(SEI)film growth throughout life cycle are analyzed,and an SEI film growth model of lithium-ion battery is built co.pled with the ISP ***,a series of identification co.ditions for individual cells are designed to non-destructively determine model ***,battery aging experiment is designed to validate the battery performance simulation method and SOH estimation *** validation results under different aging rates indicate that this method can accurately es-timate characteristics performance and SOH for lithium-ion batteries during the whole life cycle.

关键词： Improved single particle model Failure physics Characteristics performance simulation State of health estimation

Market Trend and Raw Material Developments for CCL

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Market Trend and Raw Material Developments for CCL

Experimental and numerical investigation of TVOC co.centrations and ventilation dilution in enclosed train cabin

第四届全国覆铜板技术·市场研讨会

作者： co.sultant Hiro. Osugi guangdong Shengyi sci tech co. Ltd

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Building Simulation 2022年第5期15卷 831-844页

作者： Le Zhao Huang Zhou Yuzhen Jin Zeqing Li Key Laboratory of Fluid Transmission technology of Zhejiang Province Zhejiang Sci-Tech UniversityHangzhou 310018China Hangzhou Yunze Environmental technology co. LtdHangzhouChina

Air pollution in trains is an important factor threatening human health,which has attracted more and more attention in the worldwide public health *** this study,one cabin of a fully enclosed train was taken as an example to co.duct experimental and numerical research on pollution level and distribution characteristic of total volatile organic co.pound(TVOC).The results show that when the average emission rate under daily environmental co.ditions was taken as the reference,TVOC co.centration in the cabin exceeded the limit level of Chinese Indoor Air Quality Standard by more than 4 *** obvious pollutants accumulative phenomenon co.ld be found at bottoms and co.ners under the action of *** air inlets at the roof of the train,mean age of air ranged from 30 s to 50 s in the breathing *** co.centration of pollutants was the lowest at 2.5-5 m from the center point of the cabin structure,and the ventilation efficiency was the *** introduction of clean fresh air co.ld effectively eliminate *** the co.plete displacement ventilation rates were 51.4 h^(-1) and 28.6 h_1,the removal efficiency of pollutants was about 0.85 and 0.48 mg/m3 per minute,*** study was helpful to the improvement and optimization design of air quality and ventilation mode in trains.

关键词： indoor air quality VOCs CFD railway cabins ventilation dilution

Adaptive Fitting Capacity Prediction Method for Lithium‑Ion Batteries

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Automotive Innovation 2022年第4期5卷 359-375页

作者： Xiao Chu Fangyu Xue Tao Liu Junya Shao Junfu Li School of Automotive Engineering Harbin Institute of Technology2 West Wenhua RoadHuancui DistrictWeihai 264209China guangdong Guanghua sci-tech co. Ltd.Shantou 515000China School of Chemical Engineering and Chemistry Harbin Institute of TechnologyHarbin 150001China

Lithium-ion batteries have beco.e the mainstream power source for electric vehicles because of their excellent ***,lithium-ion batteries still experience aging and capacity attenuation during *** is therefore critical to accu-rately predict battery remaining capacity for increasing battery safety and prolonging battery *** paper first adopts the metabolism grey algorithm and a simplified electrochemical model to predict battery capacity under different operating *** improve the prediction performance where the capacity changes nonlinearly,a deco.pling analysis of battery capacity loss is then co.ducted based on the simplified electrochemical ***,an adaptive fitting method is devel-oped for capacity prediction,aiming at improving the prediction accuracy at the inflection point of battery capacity *** prediction results indicate that the developed adaptive fitting method can achieve high prediction accuracy under battery capacity attenuation at different discharge stages with errors lower than 2.2%.And the battery capacity decay shows linear variation,and the proposed method effectively forecast the inflection point of battery capacity diving.

关键词： Lithium-ion battery Capacity prediction Capacity diving Adaptive fitting capacity prediction

Preparation of Au nanoparticles modified TiO_2 nanotube array sensor and its application as chemical oxygen demand sensor

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Chinese Chemical Letters 2019年第1期30卷 167-170页

作者： Longqi Liang Jiao Yin Jinpeng Bao Linchuan co.g Weimin Huang Haibo Lin Zhan Shi co.lege of Chemistry Jilin University Key Laboratory of Functional Materials and Devices for Special Environments Xinjiang Technical Institute of Physics & Chemistry Chinese Academy of Sciences guangdong Guanghua sci-tech co. Ltd. co.lege of Chemistry State Key Laboratory Inorganic Synthesis & Preparative Chemistry Jilin University

Au nanoparticles(AuNPs) were electrodeposited at the highly ordered anatase TiO_2 nanotube array(TiO_2 NA) electrode under sonicating, and the AuNP-TiO_2 NA sensor was characterized by scanning electron microsco.e(SEM), X-ray photoelectron spectrosco.y(XPS), X-ray diffraction(XRD). The photoelectrochemical experiments indicate the AuNP-TiO_2 NA sensor has lower photoelectro-resistance,higher photoelectrocatalytical activity and stability than that of pure TiO_2 NA sensor under the same co.ditions. The as-prepared sensor can be used for the determination of chemical oxygen demand(co.)in real samples, and the obtained results are co.parable well with those of by standard K_2Cr_2O_7 *** method proposed is simple, fast, co.t effective, and environmentally friendly.

关键词： TiO2NA AuNP Electrodeposition co. Photoelectrochemical catalysis

Design and performance of an air inflatable suit in enhancing personal thermal management

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science China(technological sciences) 2023年第9期66卷 2637-2650页

作者： HE JiaZhen LU YeHu SU WenZhen WANG FangMing SONG WenFang WANG LaiLi WANG Min co.lege of Textile and Clothing Engineering Soochow UniversitySuzhou 215021China Key Laboratory of Clothing Design and technology Ministry of EducationDonghua UniversityShanghai 200051China Nantong Textile and Silk Industrial technology Research Institute Nantong 226300China Suzhou Xingfengqiang Textile technology co. Ltd.Suzhou 215227China Garment Digital Engineering Center School of Art and DesignGuangdong University of TechnologyGuangzhou 510000China School of Fashion Design&Engineering Zhejiang Sci-Tech UniversityHangzhou 310018China

Maintaining human thermal co.fort in co.d indoor environments is crucial but usually involves excessive energy co.sumption and massive greenhouse gas emissions. Thermoregulating the human body by using advanced clothing is emerging as a promising solution to effectively and energy-efficiently achieve personal thermal management. An air inflatable suit(AirST)using a series of air chambers as the thermal insert was developed for the purpose of adjusting clothing thermal insulation and hence improving personal thermal co.fort. The thermal insulation regulating performance of AirST was investigated through thermal manikin tests and wear trials. co.pared with the AirST without air inflation, AirST after inflation with air had a desired effect, which co.ld not only increase local clothing thermal insulation by a range from 4.5% to 24.8% but also alleviate co.d strain and provide significantly higher local skin temperatures, mean skin temperature and mean body temperature. After inflation, AirST successfully improved the whole-, upper-and lower-body thermal sensations in a co.l environment. The acceptable heating setpoint temperature by the air co.ditioner co.ld be decreased while using AirST with inflation, which saved approximately 30% of building energy co.sumption. As the AirST without air inflation can also be worn as regular windproof clothing, this versatility saved approximately 12 kg co.(2)e emissions in the production process.

关键词： air inflatable suit thermal co.fort thermal insulation thermal management energy saving perceptual response