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An integrated flexible self-healing Zn-ion battery using dendrite-suppressible hydrogel electrolyte and free-standing electrodes for wearable electronics

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Nano Research 2023年第8期16卷 11000-11011页

作者： Jiawei Long Tianli Han Xirong Lin Yajun Zhu Yingyi Ding Jinyun Liu Huigang Zhang Key Laboratory of Functional Molecular Solids Ministry of EducationCollege of Chemistry and Materials ScienceAnhui Normal UniversityWuhu 241002China National Key Laboratory of Science and Technology on Micro/Nano Fabrication Department of Micro/Nano-electronicsShanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China

Among many aqueous batteries,flexible zinc-ion(Zn-ion)battery becomes the focus owing to the merits of low cost,non-toxicity,and ***,a Zn dendrite-suppressible hydrogel electrolyte with both flexible and self-healing properties is developed via photoinitiated *** cross-linked structure of the polyacrylamide-N,N'-methylenebisacrylamide(PAM-MBA)-Zn/Mn hydrogel endows an enlarged chemical stable window,high ionic conductivity,and low polarization *** cycling at the current density of 0.5 mA·cm^(−2)for 250 h,Zn‖Zn symmetrical cell based on PAM-MBA-Zn/Mn electrolyte delivers a low polarization of 40 *** suppressed dendrite growth is ascribed to the uniform Zn deposition/stripping on *** galvanostatic intermittent titration technique curves display that the Zn-ion battery constructed by the PAM-MBA-Zn/Mn hydrogel electrolyte,free-standing FeVO_(4)/carbon cloth cathode,and Zn nanosheets/carbon cloth anode presents low reaction resistance and fast diffusion coefficient,indicating good endurance of cycling at high current *** battery with PAM-MBA-Zn/Mn hydrogel electrolyte presents a good flexible and self-healing *** bending 0°,60°,90°,and 180°for 30 times,batteries deliver stable *** cutting into ten pieces,the battery could self-heal and display a potential retention of 93.7%compared to the fresh cell.A good rate-performance is also *** cutting/healing three times during cycling,capacity recovers well compared to the first-time cutting/***,the battery exhibits good flexibility using in an electric watch,indicating a promising potential for wearable electronics.

关键词： Zn-ion battery flexible self-healing dendrite growth cycling life

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Electroreduction of carbon dioxide to multi-electron reduction products using poly(ionic liquid)-based Cu-Pd catalyst

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Fundamental Research 2022年第6期2卷 937-945页

作者： Xiao-Qiang Li Guo-Yi Duan Xian-Xia Yang Li-Jun Han Bao-Hua Xu Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China National Fundamental Research Laboratory of New Hazardous Chemicals Assessment and Accident Analysis Institute of Applied ElectrochemistryBeijing University of Chemical TechnologyBeijing 100029China

Electrocatalytic reduction of CO_(2)(CO_(2)RR)to multi-electron(>2e–)products provides a green and sustainable route for producing fuels and *** the second metal element is a feasible strategy for"managing"the key intermediate on Cu-based materials to further improve the CO_(2)RR catalytic *** this work,palladium,which promises the generation of CO,was introduced into the poly(ionic liquid)-based copper hybrid(Cu@PIL)to construct a novel Cu-Pd bimetallic electrocatalyst(Cu@PIL@Pd).Remarkably,with a small dosage of palladium(2.0 mol%compared with Cu),a high faradaic efficiency(FE)for C_(2+)products(68.7%)was achieved at–1.01 V(with respect to the reversible hydrogen electrode(RHE),the same below)with a high partial current density of 178.3 mA cm^(-2).Meanwhile,high selectivity towards CH4(FE=42.5%)and corresponding partial current density of 172.8 mA cm^(-2)were obtained on the same catalyst at–1.24 V,signifying a significant potential-dependent *** studies reveal that both copper and palladium oxides are reduced to metallic states during the CO_(2)*** presence of the adjoint copper phase and the highly dispersed electrostatic layer promote the generation of CO on the palladium components(both the PdO_(2)phase and the Pd(II)site).Besides,the local CO^(*)was enriched by the significant diffusion resistance of CO in the PIL *** spillover of CO^(*)from Pd sites to the adjoint Cu sites,accompanied by the increased local concentration of CO^(*)around Cu sites,accounted for the observed good CO_(2)RR catalytic performance,especially the high C_(2+)product selectivity.

关键词： CO_(2)conversion Bimetallic catalyst Cu-Pd material Electrolysis High-value products

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Waste Vegetable Oil as a Sustainable Additive for Enhancing Asphalt Binder Properties: A Review 8th

Waste Vegetable Oil as a Sustainable Additive for Enhancing ...

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8th International Conference on Material engineering and Nanotechnology, ICMEN 2024

作者： Khasawneh, Mohammad Ali Sawalha, Ansam Khasawneh, Ahmad Ali Mohammed, Nayeemuddin Ahmed, Danish Department of Civil Engineering Prince Mohammad Bin Fahd University Al Khobar Saudi Arabia Department of Civil Engineering American University of Madaba Madaba Jordan Management Engineering and Process Improvement Department/Integrated Systems Engineering Department Ohio State University Wexner Medical Center and Ohio State University 660 Ackerman Road ColumbusOH43202 United States

ISBN: (纸本)9789819636235

This review paper presents a comprehensive and systematic analysis of the performance improvements achieved by incorporating waste vegetable oil (WVO) into asphalt binders. The study encompasses a thorough examination of various factors, including rheological characteristics, durability, environmental impacts, and economic viability. The results demonstrate that the utilization of WVO-modified asphalt binders offers a promising solution for environmentally friendly pavement construction practices. These binders exhibit enhanced performance qualities, reduced environmental effects, and the potential for cost savings. This review highlights the feasibility and benefits of WVO-modified asphalt binders as a sustainable choice for the construction industry, paving the way for more environmentally conscious and economically viable pavement construction approaches. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： Binders

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Physics problems in bio or bioinspired additive manufacturing

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Bio-Design and Manufacturing 2023年第2期6卷 99-102页

作者： Jun Yin Jin Qian Yong Huang The State Key Laboratory of Fluid Power and Mechatronic Systems School of Mechanical EngineeringZhejiang UniversityHangzhou 310028China Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province School of Mechanical EngineeringZhejiang UniversityHangzhou 310028China Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province Department of Engineering MechanicsZhejiang UniversityHangzhou 310027China Department of Mechanical and Aerospace Engineering University of FloridaGainesvilleFL 32611USA

Additive manufacturing,also known as three-dimensional(3D)printing,has attracted increasing attention due to the innovations in materials science and manufacturing over recent decades[1].Recently,innovations in biocompatible materials and biology have enabled the extension of 3D printing techniques into bioadditive manufacturing,which focuses on the fabrication of 3D engineered native-like tissues/organs[2].Currently,bioadditive manufacturing technologies can be categorized into inkjet-based bioprinting,microextrusion-based bioprinting,digital light processing(DLP)bioprinting,electric field-assisted bioprinting,and fused deposition modeling(FDM),to name a few[3,4](Fig.1).Artificial tissues and organs with delicate structures,such as the heart[5]and liver[6],have been successfully fabricated using various bioadditive manufacturing techniques.

关键词： printing additive organs

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Quantum chemical descriptors based QSAR modeling of neodymium carboxylate catalysts for coordination polymerization of isoprene

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Chinese Journal of Chemical engineering 2020年第7期28卷 1805-1808页

作者： Shuguang Xiang Jiye Wang Institute of Process Systems Engineering Qingdao University of Science&TechnologyQingdao 266042China

Based on the quantum chemical descriptors and the activities for isoprene polymerization of 12 neodymium carboxylates obtained by authors’earlier work,statistical analysis of data was made and a QSAR model correlating the quantum chemical descriptors and the activity was built with the partial least square(PLS)*** model is:A=51602εHOMO+6σ+12546,which indicates that the catalytic activity A is positively correlated with the HOMO energyεHOMOand the ligand polarizabilityσ,with the contribution ofσbeing larger,εHOMO *** model’s coefficient of determination r^2=0.96 and that of cross validation q^2=0.94,both being close to 1,which means that its quality is well and its predictive power is *** of the modeling process and the resulted QSAR model,together with the interpretation of the model’s mechanism,also shows that the model obtained from this study is valid and *** to the QSAR model,the mechanism of catalyst activity can be interpreted as that neodymium carboxylates with higher HOMO energy and larger ligand polarizability are easier to react with the co-catalysts so as to produce more active and stable centers of catalyst,resulting in a higher activity.

关键词： Neodymium carboxylate QSAR modeling Isoprene coordination polymerization Catalyst

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Safety considerations and time constant determined extended operations for fuel cell-powered aircrafts

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CEAS Aeronautical Journal 2021年第4期12卷 767-775页

作者： Kösters, Lennart Gao, Xin Institute of Energy and Process Systems Engineering TU Braunschweig Braunschweig Germany Cluster of Excellence SE2A-Sustainable and Energy-Efficient Aviation Braunschweig Germany

Proton exchange membrane fuel cells (PEMFC) are seen to be promising for achieving the transformation from traditional aircrafts to All Electric aircrafts (AEA). While several field studies already proved the feasibility of a fuel cell-powered aircraft, the limiting factor for the implementation in the civilian aircraft sector is widely thought to be the specific power of the fuel cell system. Moreover, potentially, this specific power is notably affected by the aviation safety code. This study aims to quantify and relieve this effect by introducing a novel extended operation strategy. This strategy takes advantage of the degradation time constants of the fuel cell system in case of sub-system failure. The results show the great influence of the aviation certification code on system specific power. The extended operation strategy seems working notably. However, for practical implementation, individual failure probabilities on a component level need to be studied more extensively. © 2021, The Author(s).

关键词： systems engineering

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Quality process control and Preventive Maintenance Optimization of a Grinding Unit: A Case Study 10

Quality Process Control and Preventive Maintenance Optimizat...

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10th International Conference on Optimization and Applications, ICOA 2024

作者： Sadraoui, Youssef Er-Ratby, Mohamed Kadiri, Moulay Saddik Kobi, Abdessamad National School of Applied Sciences Sultan Moulay Slimane University LIPIM Laboratory of Process Engineering Computer Science and Mathematics Khouribga Morocco National School of Applied Sciences Sultan Moulay Slimane University LASTI Laboratory of Science and Engineering Techniques Khouribga Morocco Polytech Angers University of Angers LARIS Angevin Laboratory for Systems Engineering Research France

ISBN: (纸本)9798350387353

The studied process is a grinding and hydroclassification unit designed to ensure that the grain size it processes is in line with the specifications for the pipe's transport mode. Obstacles to the unit's operational process include frequent stops, plant's low reliability, product delivery with an inappropriate grain size, and a lack of control over operating parameters. These factors have a significant impact on the unit's relevance and, consequently, its performance. We created a quality culture among operators with '0 grain quality loss' through the implementation of the quality and processes control study, which was essential to improve the situation. Thus, by completing the seven project stages, we were able to enhance and optimize the grinding and hydroclassification unit's overall performance and capability to regulate the grain size quality. We noticed a notable improvement in regulating the several parameters that affect the targeted particle size after we established tools for unit quality control, such as control and monitoring charts, reaction matrices, intervention flow charts and operational standards. The unit has seen a great deal of satisfaction from the project in terms of quality, process control and resources optimization. Moreover, the incorporation of preventive maintenance into this process has shown to be crucial in guaranteeing the reliability and durability of the installation, thereby substantially improving the unit's overall efficiency. © 2024 IEEE.

关键词： Preventive maintenance

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Synthesis of interfacial electric field-enhanced CdS/Cd_(x)Zn_(1-x)S/ZnO ternary heterojunction by lye dissolution etching mechanism for photocatalytic H_(2)production and CO_(2)reduction

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Journal of Materials Science & Technology 2025年第1期204卷 152-165页

作者： Qi Li Shengchao Yang Yufan Huang Yuwei Liang Chunling Hu Min Wang Zhiyong Liu Yanlong Tai Jichang Liu Yongsheng Li School of Chemistry and Chemical Engineering Shihezi University/Key Laboratory of Green Process for Chemical Engineering/Key Laboratory for Chemical Materials of Xinjiang Uygur Autonomous Region/Engineering Center for Chemical Materials of Xinjiang BingtuanShihezi UniversityShihezi 832003China Shanghai Institute of Ceramics Chinese Academy of SciencesShanghai 200050China Key Laboratory of Human-Machine Intelligence-Synergy Systems of Chinese Academy of Sciences(CAS) Shenzhen Institutes of Advanced TechnologyShenzhen 518055China Lab of Low-Dimensional Materials Chemistry Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and Engineering East China University of Science and Technology ShanghaiShanghai 200237China

The difficulty in fabricating a multifaceted composite heterojunction system based on Cd_(x) Zn_(1-x) S limits the enhancement of photocatalytic *** the present scrutiny,novel ZnO/Cd_(x) Zn_(1-x) S/CdS com-posite heterojunctions are successfully prepared by the alkaline dissolution etching *** internal electric field at the interface of I-type and Z-scheme heterojunction improved the effective charge *** ZC 8 sample exhibits excellent photocatalytic performance and the H2 production efficiency is 15.67 mmol g^(−1) h^(−1) with good stability up to 82.9%in 24-hour *** performance of CH_(4) and CO capacity in the CO_(2) RR process is 3.47μmol g^(−1) h^(−1) and 23.5μmol g^(−1) h^(−1),*** photogener-ated accelerated charge transport is then examined in detail by in situ X-ray photoelectron spectroscopy(ISXPS)and density functional theory(DFT)*** work presents a new idea for the synthe-sis of Cd_(x) Zn_(1-x) S solid-solution-based materials and provides a solid reference for the detailed mechanism regarding the electric field at the heterojunction interface.

关键词： Photocatalysis Interface electric field Composite heterostructure Photocatalytic mechanism Cd_(x)Zn_(1-x)S solid-solution

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Biosorbent silver nanoparticles decorated coffee-ground waste composite for cleaning water and antimicrobial applications

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Environmental Science and Pollution Research 2025年第5期32卷 2280-2297页

作者： Al-Ghamdi, Azza A. Ibrahim, Sherif M. Lu, Xingmei Xin, Jiayu El-Sayed, Ibrahim El-Tantawy Galhoum, Ahmed A. Wageh, Swelm. Department of Chemistry College of Science Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam31441 Saudi Arabia Renewable and Sustainable Energy Unit Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam31441 Saudi Arabia Nuclear Materials Authority P.O. Box 530 El-Maadi Cairo Egypt Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Multiphase Complex Systems Innovation Academy for Green Manufacture Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemistry and Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China Sino Danish College University of Chinese Academy of Sciences Beijing100049 China Chemistry Department Faculty of Science Menoufia University Shebin El-Kom Egypt Department of Physics Faculty of Science King Abdulaziz University Jeddah21589 Saudi Arabia

A sustainable biosorbent, silver nanoparticles-decorated coffee-ground waste (CWAg), was synthesized through a simple in-situ reduction method. CWAg is extensively characterized via SEM–EDX, PZC, FTIR, XRD, HR-TEM, and XPS analyses. The biosorbent was tested to remove chromium (Cr(VI)) and methylene blue (MB) from wastewater, and its antibacterial properties was evaluated. CWAg demonstrated efficient sorption efficiencies, achieving ⁓149.9 mg/g at 323 K and pH: 2.0 for Cr(VI) and ⁓113.4 mg/g at 293 K and pH: 6.0 for MB, at a biosorbent dose of 1 g/L. The equilibration times were 90 and 120 min for Cr(VI) and MB, with half-sorption times (tHST) of 9.2 and 13.9 min, respectively. The sorption mechanisms were successfully fitted with Sips isotherm and Pseudo-second-order models. Simultaneous sorption of MB and Cr(VI) at pH 2.0 exhibited antagonism, while a synergistic effect was observed at pH 6.0. Desorption and regeneration were achieved using NaOH and HCl solutions for Cr(VI) and MB, respectively. The efficiencies were just reduced by 9–13%. Finally, CWAg exhibited remarkable effectiveness for removing Cr(VI) from complex tannery effluent. Moreover, CWAg demonstrated positive antibacterial effects against both Gram-positive and Gram-negative bacteria, surpassing raw coffee-ground waste, underscoring the significant role of silver nanoparticles in enhancing bacterial inhibition. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.

关键词： Silver nanoparticles

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THE EFFECT OF HYDROGEN ON NON-LINEAR FLAME SATURATION

THE EFFECT OF HYDROGEN ON NON-LINEAR FLAME SATURATION

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ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition, GT 2023

作者： Æsøy, Eirik Indlekofer, Thomas Bothien, Mirko R. Dawson, James R. Department of Energy and Process Engineering Norwegian University of Science and Technology TrondheimN-7491 Norway SINTEF Energy Research TrondheimN-7465 Norway Institute of Energy Systems and Fluid Engineering Zürich University of Applied Sciences ZHAW Zürich Switzerland

ISBN: (纸本)9780791886960

We investigate the effect of increasing levels of hydrogen enrichment on the non-linear response and saturation of premixed bluff-body stabilised methane/hydrogen flames submitted to acoustic forcing. The thermal power is kept approximately constant to preserve the nozzle velocity whilst increasing the flame speed through hydrogen enrichment. The flame describing function (FDF) is measured for a fixed frequency and three hydrogen-methane blends ranging from 10% to 50% by power, corresponding to 25% to 75% by volume. We show that when the flame is forced at the same frequency at similar power and bulk velocities, increasing levels of hydrogen enrichment increase the saturation amplitude of the flame. To provide insight into the flame dynamics responsible for the change in the global nonlinear response and saturation amplitude, the flames were investigated using high-speed imaging in combination with OH-PLIF at a range of forcing amplitudes. At lower hydrogen concentrations, the flame is stabilised along the inner shear layer and saturation in the heat release rate occurs at lower forcing amplitudes due to large-scale flame-vortex interactions causing flame annihilation as observed in several previous studies. At increased levels of hydrogen enrichment, distinctly different flame dynamics are observed. In these cases, the flame accelerates and propagates across to the outer shear layer which acts to suppress large-scale flame annihilation during roll-up of both the inner and outer shear layers. This results in a coherent increase in flame surface area with forcing amplitudes significantly increasing the saturation amplitude of the flame. These results show that high levels of hydrogen increase the amplitude response to acoustic forcing leading to higher saturation amplitudes. This suggests that substituting natural gas with hydrogen in Gas Turbines increases the risk of much higher limit-cycle amplitudes if self-excited instabilities occur. Copyright © 2023 by ASME.

关键词： Hydrogen

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