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Interfacial Zn2+-solvation regulator towards reversible and stable Zn anode

Journal of Energy Chemistry 2025年第1期100卷 684-692页

作者： Miao Zhou Xiongbin Luo Hang Li Shan Guo Zhuang Tong Xiaotao Zhou Xu Li Zhaohui Hou Shuquan Liang Guozhao Fang College of Mechanical Engineering Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials Hunan Institute of Science and Technology School of Materials Science and Engineering Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province Central South University College of Materials and Metallurgy Guizhou University National Energy Metal Resources and New Materials Key Laboratory Central South University

Aqueous zinc-ion batteries （AZIBs） are fundamentally challenged by the instability of the electrode/electrolyte interface,predominantly due to irreversible zinc （Zn） deposition and hydrogen ***,the intricate mechanisms behind the electrochemical discrepancies induced by interfacial Zn2+-solvation and deposition behavior demand comprehensive *** molecules endowed with special functional groups （such as hydroxyl,carboxyl,etc.） have the potential to significantly optimize the solvation structure of Zn2+and regulate the interfacial electric double layer （EDL）.By increasing nucleation overpotential and decreasing interfacial free energy,these functional groups facilitate a lower critical nucleation radius,thereby forming an asymptotic nucleation model to promote uniform Zn ***,this study presents a pioneering approach by introducing trace amounts of n-butanol as solvation regulators to engineer the homogenized Zn （H-Zn） anode with a uniform and dense *** interfacial reaction and structure evolution are explored by in/ex-situ experimental techniques,indicating that the H-Zn anode exhibits dendrite-free growth,no by-products,and weak hydrogen evolution,in sharp contrast to the bare ***,the H-Zn anode achieves a remarkable Zn utilization rate of approximately 20% and simultaneously sustains a prolonged cycle life exceeding 500 ***,the H-Zn//NH4V4O10（NVO） full battery showcases exceptional cycle stability,retaining 95.04%capacity retention after 400 cycles at a large current density of 5 A *** study enlightens solvation-regulated additives to develop Zn anode with superior utilization efficiency and extended operational lifespan.

关键词： Solvation

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Synthesis and characterization of soluble intrinsic black polyimide with excellent comprehensive properties

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Science China(Technological Sciences) 2023年第12期66卷 3604-3614页

作者： TAN JingHua SHEN JunYi HUANG Jie ZHAO ChunBo LI HuiPeng LIU XueYuan XIE FengYun LIU YiWu National and Local Joint Engineering Research Center for Advanced packaging Materials and technology Key Laboratory of Advanced Packaging Materials and Technology of Hunan ProvinceSchool of Packaging and Materials EngineeringHunan University of TechnologyZhuzhou 412007China

Black polyimides(BPIs)have attracted increasing attention owing to their growing demand in ***,commonly used black polyimides doped with black fillers suffer from poor mechanical and electrical *** address these issues,a new diamine(2,5-bis(4′-amino-[1,1′-biphenyl]-4-yl)-3,4-bis(4-fluorophenyl)cyclopenta-2,4-dien-1-one,TPCPFPDA)bearing a tetraphenylcyclopentadienone(TPCP)moiety bonded with benzene and fluorine units was *** diamine was reacted with 4,4′-(hexafluoroisopropylidene)diphthalic anhydride(6FDA)to yield a soluble intrinsic black polyimide(TPCPFPPI).Bonding fluorine(auxochrome group)and benzene units to TPCP can increase the conjugation ofπ-electrons systems and facilitate the movement of electron throughout the bigπbond,*** to the structural features,the synthesized TPCPFPPI exhibited complete visible-light absorption with high blackness and *** cutoff wavelength(λ_(cut))and CIE(Commission Internationale de I′Eclairage)parameter L^(*)were 684 nm and 1.33,***,TPCPFPPI displayed exceptional electrical,mechanical,and thermal properties as well as excellent solubility.A detailed theoretical calculation was conducted to gain better insight into the electronic properties of the *** showed that the blackness of TPCPFPPI was chiefly attributed to the electron transition from highest occupied molecular orbital(HOMO)to lowest unoccupied molecular orbital(LUMO)in the diamines,where the charges primarily migrated from the aryl groups in the 2-and 5-positions to the cyclopentadienone *** as-obtained intrinsic BPI(TPCPFPPI),exhibiting both high solubility and outstanding overall properties,has important applications in photo-electronics.

关键词： intrinsic black polyimide complete visible light absorption excellent solubility tetraphenylcyclopentadienone chromophore theoretical calculation

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Fabrication of cellulose acetate membrane for monitoring freshness of minimally processed pomegranate(Punica granatum)arils

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food Bioscience 2022年第5期49卷 1225-1229页

作者： N.D.Komali P.S.Gaikwad B.K.Yadav Department of food packaging and System Development National Institute of Food TechnologyEntrepreneurship and ManagementThanjavurIndia Liaison Office National Institute of Food TechnologyEntrepreneurship and ManagementThanjavurBathindaIndia

This study examined the freshness of minimally processed pomegranate arils(MPPAs)under refrigeration conditions(5±1◦C)stored in a polypropylene(PP)container sealed with PP nanocomposite multi-layered film(PP-NMF).The freshness indicator was fabricated using cellulose acetate coated with a combination of colorimetric pH dyes,which included bromocresol green(BCG),bromothymol blue(BTB)and methyl red(MR)in a ratio of 6:9:*** fabricated indicator labels were attached inside the package headspace and observed an increase in CO_(2)(0.1±0.01 to 0.9±0.03%v/v)and a decrease in O_(2)(19.6±0.01 to 18.8±0.03%v/v)during storage(0-18 days).Color change of indicator labels was mainly caused by headspace concentrations that changed from dark to colorless for fresh and spoiled pomegranate *** PP-NMF used in MPPAs has high barrier properties,extending its shelf life in the refrigerator to over 15 *** pomegranate arils stored for different periods of time showed significant changes in their physicochemical *** storage days,aerobic mesophilic bacteria(AMB)and yeast and mold count(YMC)increased to 4.90±0.20 and 4.50±0.20 log CFU g􀀀*** indicator developed for monitoring pomegranate arils stored in the refrigerator can detect freshness efficiently.

关键词： Minimal process Pomegranate arils Polypropylene nanocomposite multi-layered film Freshness indicator Cellulose acetate

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Synthesis of fluorescent carbon quantum dots from aqua mesophase pitch and their photocatalytic degradation activity of organic dyes

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Journal of Materials Science & technology 2019年第8期35卷 1515-1522页

作者： Youliang Cheng Mengsha Bai Jian Su Changqing Fang Hang Li Jing Chen Jieming Jiao Faculty of Printing Packaging Engineering and Digital Media TechnologyXi’an University of Technology

A synthesis strategy of fluorescent carbon quantum dots(CQDs) with high quantum yield(QY) using aqua mesophase pitch(AMP) as the carbon source has been developed via the hydrothermal method in this study. The hydrothermal temperature and soaking time have important effects on the morphology and QY of CQDs. As-prepared CQDs at 120℃ holding for 24 h(CQDs-120-24) have the uniform size of about 2.8 nm, and the QY can reach 27.6%. The obtained CQDs are successfully modified with ammonia and thionyl chloride, respectively, and they exhibit an excellent photocatalytic performance on degrading rhodamine B(Rh B), methyl blue(MB) and indigo carmine(IC). Importantly, the degradation percentage of N-CQDs on Rh B under natural light for 4 h reaches 97% with the degradation rate constant of 0.02463 min^(-1) and it can maintain 93% after repetitively used 5 times. The results indicate that these as-prepared CQDs have the potential application in degrading organic dyes.

关键词： Carbon quantum dots Aqua mesophase pitch Photocatalytic performance Degradation rate

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Synergism of Zinc Oxide/Organoclay-Loaded Poly(lactic acid) Hybrid Nanocomposite Plasticized by Triacetin for Sustainable Active food packaging

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Journal of Renewable Materials 2024年第5期12卷 951-967页

作者： Ponusa Songtipya Thummanoon Prodpran Ladawan Songtipya Theerarat Sengsuk Center of Excellence in Bio-Based Materials and packaging Innovation Faculty of Agro-IndustryPrince of Songkla UniversityHat YaiSongkhla90110Thailand food packaging technology program Faculty of Agro-IndustryPrince of Songkla UniversityHat YaiSongkhla90110Thailand

The synergistic effect of organoclay(OC)and zinc oxide(ZnO)nanoparticles on the crucial properties of poly(lactic acid)(PLA)nanocompositeﬁlms was systematically investigated *** their incorporation into PLA via the solvent casting technique,the water vapor barrier property of the PLA/OC/ZnOﬁlm improved by a maximum of 86%compared to the neat PLAﬁlm without the deterioration of Young’s modulus or the tensile ***,theﬁlm’s self-antibacterial activity against foodborne pathogens,including gram-negative(Escherichia coli,***)and gram-positive(Staphylococcus aureus,***)bacteria,was enhanced by a max-imum of approximately 98–99%compared to the neat PLAﬁ***,SEM images revealed the homo-geneous dispersion of both nano-ﬁllers in the PLA ***,the thermal stability of theﬁlm decreased slightly after the addition of the OC and ***ﬁlm exhibited notable light barrier properties in the UV-Vis ***,the incorporation of a suitable biodegradable plasticizer signiﬁcantly decreased the Tg and notably enhanced theﬂexibility of the nanocompositeﬁlm by increasing the elongation at break approxi-mately 1.5-fold compared to that of the neat PLAﬁ*** contributes to its feasibility as an active food packa-ging material.

关键词： Poly(lactic acid)nanocomposite organoclay zinc oxide barrier property antibacterial activity active food packaging

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Characterization and Performance Evaluation of Mycelium-Based Biofoams for Cushioning Materials Using Edible Mushrooms

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Journal of Renewable Materials 2024年第11期12卷 1811-1836页

作者： Tanyawan Suwandecha Supachai Pisuchpen program of food packaging technology Faculty of Agro-IndustryPrince of Songkla UniversityHat Yai CampusSongkhla90110Thailand Center of Excellence in Bio-Based Materials and packaging Innovation Faculty of Agro-IndustryPrince of Songkla UniversityHat Yai CampusSongkhla90110Thailand

This study investigated the development of mycelium-based biofoams as sustainable cushioning materials using Pleurotus ostreatus and Lentinus squarrosulus,combined with different sawdust substrates,and subjected to various pressing *** results indicated significant effects of mushroom species,sawdust type,and pressing method on the properties of *** rate,morphology,chemical composition,physical and mechanical properties,water resistance,and cushioning factor were *** results indicated that Lentinus squarrosulus(LS)exhibited faster growth rates(up to 14.37 mm/day)and produced biofoams with superior properties compared to Pleurotus ostreatus(PO).Core wood(CW)sawdust generally resulted in biofoams with lower density(0.1-0.3 g/cm^(3)),lower shrinkage(7.17%-11.41%),and better shock absorption properties(cushion factor of 4.45-4.73).Hot pressing(HO)consistently produced biofoams with higher density(up to 0.31 g/cm3),improved mechanical strength(compression strength up to 0.53 MPa),and enhanced hydrophobicity(water contact angle up to 102.03°)but slightly reduced the shock absorption *** made from LS cultivated on CW sawdust and pressed using hand-packing(HP)exhibited superior shock absorption properties,achieving a cushion factor of 4.45 comparable to expanded polystyrene(EPS)*** findings demonstrated that certain combinations of sawdust types and pressing methods can optimize the performance of mycelium-based biofoams,making them viable for sustainable packaging *** study highlighted the potential of mycelium biofoams as an eco-friendly alternative to conventional packaging materials,thereby decreasing environmental impact and promoting a sustainable future.

关键词： Mycelium Pleurotus ostreatus Lentinus squarrosulus cushioning materials cushion factor packaging

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Preparation and characterization of organic pigments and their fluorescence properties depending on bulk structure

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Journal of Materials Science & technology 2018年第11期34卷 2218-2224页

作者： Jie Du Rong Yang Changqing Fang Xing Zhou Shaofei Pan Wanqing Lei Jian Su Youliang Cheng Donghong Liu School of Mechanical and Precision Instrument Engineering Xi'an University of Technology Faculty of Printing Packaging Engineering and Digital Media TechnologyXi'an University of Technology Fuli Institute of food Science Zhejiang University School of Materails Science and Engineering Xi'an University of Technology

Fluorescent pigments, based on the optical or electrooptical properties of dyes, are the main component in fluorescent coatings and inks. In this study, three kinds of dyes（Rhodamine B, Light Green SF Yellowish, Coumarin） with four different ratios（2.5 wt%, 3 wt%, 3.5 wt%, 4 wt%） were employed as luminophor,and the melamine-formaldehyde（MF） resin was used as curing resin to prepare fluorescent pigments in different color. Fourier transform infrared spectroscopy and X-ray diffractometry were carried out to analyze the structure of the fluorescent pigments. Scanning electron microscopy and particle size distribution were used to present the morphology of fluorescent pigments. UV–vis and fluorescence spectrum were used to demonstrate the optical properties. It can be concluded that, coumarin pigments possessed consecutive structure in MF resin while rhodamine B might be the best for the preparation of printing inks among the three kinds of dyes from the view of particle size. The TG results presented that all the pigments showed good thermal stability, which might possess potential application in high speed printing industry.

关键词： Fluorescein Microstructures and properties Optical properties Thermal properties

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Modification of mechanical properties by TiO_2 nano-particle for biodegradable materials made from palm oil sludge and activated sludge cake

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中国有色金属学会会刊：英文版 2012年第S3期22卷 697-701页

作者： Panithi YUTHAVISUTHI Lerpong JARUPAN Chiravoot PECHYEN Department of packaging and Materials technology Faculty of Agro-IndustryKasetsart University Center for Advanced Studies in Agriculture and food (CASAF) KU Institute for Advanced Studies Kasetsart University

Titanium dioxide (TiO2) nano-particle is widely used in composite materials to its improved mechanical ***2 nano-particle was used in the composite material that consists of palm oil sludge from the palm oil production and activated sludge cake from a papermaking ***2 was synthesized by a hydrolysis of titanium *** parameter was investigated by the mole ratio of reactant to different solvents (isopropanol and isobutanol).The solution was prepared by adjusting pH to acid solution,resulting in different sizes and distributions of precipitate which was heated at different *** obtained samples were then morphologically and structurally characterized using X-ray diffraction (XRD) and particle size distribution (PSD).The experimental results show that the TiO2 sample from isopropanol solvent with heated temperature of 600 °C exhibits the best ***,different mass fractions of TiO2 (0,0.5%,1.0%,2.0%,4.0% and 8.0%) were used for specimens that were made from palm oil sludge mixed with activated sludge *** samples were later characterized by 3-point bending test and compression *** results indicate that the adding 0.5% and 1.0% TiO2 particles to the composite material outperforms the other fractions in terms of enhancing mechanical ***,mechanical properties tends to decrease when adding 2.0% TiO2.

关键词： titanium dioxide palm oil sludge active sludge cake composite mechanical properties

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Development of starch-based films reinforced with cellulosic nanocrystals and essential oil to extend the shelf life of red grapes

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food Bioscience 2022年第3期47卷 403-412页

作者： Sneh Punia Bangar William Scott Whiteside Fatih Ozogul Kyle D.Dunno George Armstrong Cavender Paul Dawson Department of food Nutrition and Packaging SciencesClemson UniversitySC 29634USA Department of Seafood Processing technology Faculty of FisheriesCukurova UniversityBalcaliAdana01330Turkey Department of packaging Science Rochester Institute of TechnologyRochesterNYUSA

packaging material has an important role in extending the shelf-life of *** study investigated the effectiveness of cellulose nanocrystals(CNCs)derived from Kudzu(Pueraria montana)vine to reinforce to starch-based *** addition,the essential oil was incorporated into these nanocomposite films to evaluate further improvement in film properties and *** packaging materials,including the pearl millet starch(PMS),PMS reinforced with Kudzu CNCs,and PMS reinforced with Kudzu CNCs stabilized pickering emulsion containing clove bud oil(CBO),was used to develop biodegradable nanocomposite *** films were investigated for their thermal,morphological,mechanical,and barrier *** addition,the films were used as packaging material to improve the shelf life of the grapes for 15 days at 5℃.PMS films reinforced with Kudzu CNCs stabilized pickering emulsion of CBO were most effective in extending the shelf life of red grapes up to 15 days at 5℃ by maintaining the weight,firmness,and soluble solids in grapes for a longer duration during *** study suggests that PMS+Kudzu CNCs+EO films have the potential for commercial packaging of fruits during short storage periods without adversely affecting their quality and sensory attributes.

关键词： packaging material Nanocomposites Cellulose nanocrystals Red grapes Shelf life

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Cushioning Performance of Hilbert Fractal Sandwich packaging Structures under Quasi-Static Compressions

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Computer Modeling in Engineering & Sciences 2023年第4期135卷 275-292页

作者： Xingye Xu Haiyan Song Lijun Wang College of Light Industry Science and Engineering Tianjin University of Science&TechnologyTianjin300457China Key Laboratory of food packaging Materials and technology of China Light Industry Tianjin300457China

The sandwich structure of cushioning packaging has an important influence on the cushioning *** fractal theory is an important graphic *** on Hilbert fractal theory,a new sandwich structure was *** generation mechanism and recurrence formula of theHilbert fractal were expressed by Lin’s language,and the second-orderHilbert sandwich structure was constructed fromthermoplastic *** constitutive model of the hyperelastic body was established by using the finite element *** the unit mass energy absorption as the optimization goal,the fractal sandwich structure was optimized,and the best result was obtained when the order was 2.5 and the unit layer thickness was 0.75 *** sandwich structure was compared with the rice-shaped sandwich structure commonly used in industry,and the Hilbert fractal structure had better energy *** has practical significance for the development and application of newcushioning packaging structures.

关键词： Hilbert fractal sandwich structure static compression buffer packaging

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