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Designing carboxymethyl cellulose based hydrogel electrolyte membranes enhanced by inorganic nanoparticle toward stable zinc anode

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Green Energy & Environment 2025年第3期10卷 537-550页

作者： Xiangye Li Yuan Li Yu Jiang Dahui Wang Fen Ran State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals Department of Polymeric Materials EngineeringSchool of Material Science and EngineeringLanzhou University of TechnologyLanzhou730050China

Aqueous zinc metal batteries have garnered substantial attention ascribing to affordability,intrinsic safety,and environmental benignity Nevertheless,zinc metal batteries yet are challenged with potential service life issues resulted from dendrites and side *** this paper,a strategy of nanoparticles doped hydrogel is proposed for constructing carboxymethyl cellulose/graphite oxide hybrid hydrogel electrolyte membranes with exceptional ionic conductivity,anti-swelling property,and simultaneously addressing the dendrites and parasitic *** pivotal functions of the carboxymethyl cellulose/graphite oxide hydrogel electrolyte in mitigating hydrogen evolution and fostering accelerated Zn deposition have been elucidated based on principles of thermodynamic and reaction *** carboxymethyl cellulose/graphite oxide hydrogel electrolyte endows exceptional cycling longevity (800 h at 1 mA cm^(-2)/1 mAh cm^(-2)) for Znjj Zn battery,as well as high Coulombic efficiency for Znjj Cu battery (averagely 99.14%within 439 cycles at 1 mA cm^(-2)/1 mAh cm^(-2)).The assembled Znjj NH_(4)V_(4)O_(10)battery delivers a high reversible specific capacity of 328.5 mAh g^(-1)at 0.1 A g^(-1).Moreover,the device of Znjj NH_(4)V_(4)O_(10)pouch battery remains operational under severe conditions like bending and *** work provides valuable reference in developing inorganic nanoparticle hybrid hydrogel electrolyte for realizing high-performance zinc metal batteries.

关键词： Carboxymethyl cellulose Graphite oxide Hydrogel electrolyte Anti-swelling

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Effects of High-Consistency Pulping and Kneading on Recovery of Hydrophilicity and Strength of Recycled Paper Based on Fibers Hydrophobized by Gas Grafting with Palmitoyl Chloride

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Palpu Chongi Gisul/Journal of Korea Technical Association of the Pulp and Paper Industry 2024年第3期56卷 3-10页

作者： Kim, Min Su Kim, Min Ji Jeong, Min Ho Cho, Min Ki Ryu, Jeong-Yong Department of Paper Material Science and Engineering College of Forest & Environmental Sciences Kangwon National University Korea Republic of

As environmental pollution problems arise due to the use of plastic, efforts are underway to replace it with ecofriendly materials. Gas grafting has ability to render cellulose surfaces hydrophobic, thereby imparting water resistance to paper. However, this hydrophobization poses challenges in recycling because disintegrating pulp fibers is difficult because of their poor wetting, and a reduction in hydroxyl groups adversely affects the absorbency and strength of recycled paper. In this study, we analyzed the effects of high-consistency pulping and kneading on the hydrophilicity and strength of recycled paper made from hydrophobized fiber through gas grafting with palmitoyl chloride. Experimental results indicate that high-consistency pulping was advantageous for recovering the hydrophilicity and strength of recycled paper based on hydrophobized fibers. During the kneading process, only hydrophilicity was recovered while the curling of fibers resulted in insufficient strength improvement. © 2024 Korean Technical Assoc. of the Pulp and Paper Industry. All rights reserved.

关键词： Grafting (chemical)

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New light fields based on integration theory within the Weyl ordering product of operators

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Chinese Physics B 2023年第4期32卷 160-164页

作者：张科李兰兰郭大伟范洪义 School of Electronic Engineering Huainan Normal UniversityHuainan 232038China Department of Material Science and Engineering University of Science and Technology of ChinaHefei 230026China

The development of quantum optics theory based on the method of integration within an ordered product of operators(IWOP)has greatly stimulated the study of quantum states in the light field,especially non-Gaussian states with various non-classical *** this paper,the two-mode squeezing operator is derived with integral theory within the Weyl ordering product of operators using a combinatorial field in which one mode is a chaotic field and the other mode is a vacuum *** density operator of the new light field,its entanglement property and photon number distribution are *** also note that tracing a three-mode pure state can yield this new light *** methods represent a theoretical approach to investigating new density operators of light fields.

关键词： integration within an ordered product of operators two-mode squeezing operator Weyl ordering entanglement property

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TiO_(2)photocatalytic ceramic membranes for water and wastewater treatment:Technical readiness and pathway ahead

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Journal of materials science & Technology 2024年第16期183卷 152-164页

作者： Chin Ho Kirk Peikui Wang Chiang Yon Douglas Chong Qi Zhao Jianguo Sun John Wang Department of Material Science and Engineering Faculty of EngineeringNational University of Singapore117574Singapore Department of Chemistry University of SherbrookeCanada ST Engineering Advanced Material Engineering Pte.Ltd. 619523Singapore National University of Singapore(NUS)Research Institute(Chongqing) Chongqing Liang Jiang New AreaChongqing401120China

TiO_(2)is one of the best-known environmentally friendly photocatalysts that has demonstrated the great potential to degrade a wide variety of organic foulants in water and wastewater treatment when placed under UV ***,TiO_(2)-based photocatalytic membranes are at the forefront of photodegra-dation research and technical *** membrane setup provides a high contact surface area for ef-fective filtration and degradation,without the necessary hassle of photocatalyst recovery after water and wastewater ***,TiO_(2)photocatalytic ceramic membranes have become an emerging re-search area due to the inherent chemical and mechanical stability of ceramic membranes,which enables them to outperform polymeric *** the recent shift from polymeric to ceramic membranes in industrial applications,TiO_(2)photocatalytic ceramic membranes will become a key player among the next-generation ceramic membranes,as they are capable of multiple *** review provides a timely and focused investigation into the fabrication and application of such TiO_(2)photocatalytic ceramic membranes for water and wastewater *** benefits of using photocatalytic ceramic membranes in filtration,such as a higher foulant removal efficiency,higher water permeability,and much improved antifouling capabilities,are highlighted and ***,the current research,technical readiness,and remaining gaps are identified,and a set of critical insights are provided using the available data to guide the developmental pathway of practical TiO_(2)photocatalytic ceramic membranes for water and wastewater treatment.

关键词： Water treatment Photocatalytic ceramic membranes Antifouling Titanium dioxide(TiO_(2))

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Preparation and Properties of Pluronic F-127 Based Alumina Inks for Additive Manufacturing 4th

Preparation and Properties of Pluronic F-127 Based Alumina ...

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4th International Conference on Recent Advancements in Mechanical engineering, ICRAME 2023

作者： Majumder, Debabrata Karuna Purnapu Rupa, P. Department of Material Science and Engineering Tripura University Tripura Suryamaninagar India

ISBN: (纸本)9789819741663

Alumina is a widely available low-cost engineering ceramic used in different rugged and harsh environments. Most of the alumina parts are produced by conventional powder metallurgy techniques. But the fabrication of complex alumina parts in traditional processes is difficult due to the complexity of the manufacturing process. Direct ink writing is one of the additive manufacturing techniques that build an object in a layer-by-layer manner according to the computer-aided design. To prepare alumina inks, Pluronic F-127 was used to form a hydrogel. The resultant ink consisted of 65 wt.% of alumina (solid loading), and the rest 35 wt.% was Pluronic F-127 hydrogel. Rheological observations showed that the prepared ink is shear thinning in nature which enables the ink to flow smoothly from the nozzle. From the differential scanning calorimetry (DSC) studies, it is observed that all of the organic binder is removed before 500 °C. Subsequently, the alumina sample was sintered at 1300 °C for 90 min in a muffle furnace. The scanning electron microscopy (SEM) image of the fracture surface of sintered sample at 1300 °C showed the partial sintering with open porosities. The resultant structure shows that direct ink writing can be used to obtain a porous alumina microstructure. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： Sintering

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Multi-pollutant degradation from 2D MoO3/g-C3N4/functional carbon nanomaterial based composite utilizing Z-scheme photocatalysis

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Ceramics International 2024年第24期50卷 52927-52940页

作者： Pathak, Ambika Chhoker, Sandeep Department of Physics and Material Science and Engineering Jaypee Institute of Information Technology Gautam Buddha Nagar Noida201307 India

In this report, photocatalysis, an advance oxidation process (AOPs) is considered to be the most suitable for degrading dye pollutant like acriflavine and methylene blue via Z-scheme catalysis. Current vivid study converges the role of 2D MoO3/g-C3N4 modified with green-precursor derived functional carbon nanomaterial (FCM). The morphological, structural and optical features of the composite were analysed using XRD, FESEM, EDX, FTIR, UV–VIS, Raman spectroscopy whereas its photocatalytic activity was assessed for the degradation of a pharmaceutical (acriflavine) and a textile (methylene blue) dye. The biocompatibility, reusability, chemical, thermal and hydrothermal stability of g-C3N4 and FCM when complemented with 2D-MoO3 for improved charge transport and enhanced surface area including Z-scheme catalysis, results in a stable and an abundant reaction for nearly 100 % degradation of acriflavine in just 60 min and 94 % degradation of methylene blue (MB) in 100 min under visible light. This efficiency is found to be less than 60 % for each material when used stand-alone. Further, the demonstration of efficient visible range utilization (from 300 to 500 nm) by the composite that exhibits up-conversion as well as broad photoluminescence from FCMs in its nano-dimension form, is observed. Possible effect of internal electric field which reduces the electron-hole recombination, the suitable band positions for Z-scheme charge transfer, ease of production and scaling up, cost effectiveness and multi-dye degradation study suggest that the proposed composite is highly suitable in the family of photocatalysis for environmental cleaning of multiple cationic dyes. © 2024 Elsevier Ltd and Techna Group S.r.l.

关键词： Charge transfer

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CsPbI_(2)Br epitaxial shell for efficient PbS quantum dot solar cells

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Nano Research 2024年第12期17卷 10302-10308页

作者： Sami Ur Rahman Yong-Hui Song Zhen-Yu Ma Xiao-Lin Tai Bai-Sheng Zhu Yi-Chen Yin Li-Zhe Feng Jing-Ming Hao Guan-Jie Ding Kuang-Hui Song Ya-Lan Hu Tieqiang Li Jixian Xu Hong-Bin Yao Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of ChinaHefei 230026China Department of Applied Chemistry University of Science and Technology of ChinaHefei 230026China Department of Material Science and Engineering University of Science and Technology of ChinaHefei 230026China

Lead sulfide quantum dots(PbS QDs)are promising candidates for high-performance solar cells due to their tunable bandgaps and low-cost solution ***,low carrier mobility and numerous surface defects restrict the performance of the fabricated solar ***,we report the synthesis of novel PbS-perovskite core-shell QDs to solve the low carrier mobility problem of PbS QDs via a facile hot injection ***_(2)Br shell enabled strain-free epitaxial growth on the surface of PbS QDs because of 98%lattice *** results demonstrate a significant improvement in the photoluminescence and stability of the synthesized PbS-CsPbI_(2)Br QDs upon shell formation,attributed to the effective suppression of surface defects by the epitaxial shell of CsPbI_(2)*** a result,the obtained solar cell based on PbS-CsPbI_(2)Br core-shell QD exhibits a power conversion efficiency(PCE)of 8.43%,two times higher than that of pristine PbS ***,the construction of PbS-CsPbI_(2)Br core-shell structures represent a promising strategy for advancing the performance of PbS QDs-based optoelectronic devices.

关键词： lead chalcogenide perovskites core-shell epitaxial growth solar cell

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Recent Advances of Metal-Organic Frameworks and Derivatives for Rechargeable Aluminum Batteries

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SusMat 2025年第1期5卷 38-58页

作者： Dan-Yang Wang Hong-Han Choo Erhai Hu Jinxuan Song Afriyanti Sumboja Ivandini T.Anggraningrum Anne Zulfia Syahrial Qingyu Yan School of Material Science and Engineering Nanyang Technological UniversitySingaporeSingapore Material Science and Engineering Research Group Faculty of Mechanical and Aerospace EngineeringInstitut Teknologi BandungBandungIndonesia Department of Chemistry University of IndonesiaDepokIndonesia Metallurgical&Materials Engineering Department Fakultas Teknik Universitas IndonesiaKampus UIDepokIndonesia

In light of cost-effectiveness,high volumetric capacity,and abundant supplies on Earth of aluminum metal,the rechargeable aluminum battery(RAB)represents a cutting-edge alternative for energy storage *** have achieved significant progress as a result of tireless efforts;however,challenges like as expensive ionic liquid electrolytes,a restricted voltage window of aqueous electrolytes,corroded anode,and rapid capacity degradation limit their practical *** terms of increasing RABmileage,electrode materials can be regarded as the foundation of battery ***-organic frameworks(MOFs),which have customizable topologies,multiple active sites,and various metal centers and ligands,are promising electrode ***,for the first time,we deliver in detail the recent advancement ofMOFs in *** relationship on structure-properties-performance of MOFs is thoroughly *** and MOF-derived electrode materials are first *** aluminum sulfur/selenium batteries,MOF can serve as a host to capture the sulfides or ***,the MOF as catalysts for aluminum-air batteries are *** we focused on the challenges and opportunities that RABs would face in the future,and some prospects are *** believe this account will facilitate the exploration of MOFs in RABs and give more inspiration for discovering advanced RABs.

关键词： aluminum batteries metal-organic frameworks performance structures

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A review of understanding electrocatalytic reactions in energy conversion and energy storage systems via scanning electrochemical microscopy

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Journal of Energy Chemistry 2024年第4期91卷 155-177页

作者： Jihye Park Jong Hwan Lim Jin-Hyuk Kang Jiheon Lim Ho Won Jang Hosun Shin Sun Hwa Park Interdisciplinary Materials Measurement Institute Korea Research Institute of Standards and ScienceDaejeon 34113Republic of Korea Department of Material Science and Engineering Seoul National UniversitySeoul 08826Republic of Korea Department of Applied Measurement Science University of Science and TechnologyDaejeon 34113Republic of Korea

To address climate change and promote environmental sustainability,electrochemical energy conversion and storage systems emerge as promising alternative to fossil fuels,catering to the escalating demand for *** optimal energy efficiency and cost competitiveness in these systems requires the strategic design of electrocatalysts,coupled with a thorough comprehension of the underlying mechanisms and degradation behavior occurring during the electrocatalysis *** electrochemical microscopy(SECM),an analytical technique for studying surface electrochemically,stands out as a powerful tool offering electrochemical *** possesses remarkable spatiotemporal resolution,enabling the visualization of the localized electrochemical activity and surface *** review compiles crucial research findings and recent breakthroughs in electrocatalytic processes utilizing the SECM methodology,specifically focusing on applications in electrolysis,fuel cells,and metal–oxygen batteries within the realm of energy conversion and storage *** with an overview of each energy system,the review introduces the fundamental principles of SECM,and aiming to provide new perspectives and broadening the scope of applied research by describing the major research categories within SECM.

关键词： Scanning electrochemical microscopy Electrocatalyst Electrocatalysis Water splitting Fuel cell Metal-oxygen battery

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Aniline Tetramer Nanowires/Single-Walled Carbon Nanotubes Composites for High-Performance Thermoelectric materials

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Energy material Advances 2024年第1期5卷 395-404页

作者： Hao-Han Zhou Hui Zhang Ze-Miao Xiong Yun-Fei Zhang Fei-Peng Du School of Material Science and Engineering Wuhan Institute of TechnologyWuhan 430205People’s Republic of China Department of Materials Science and Engineering City University of Hong KongHong Kong 999077China

Simultaneously improving electrical conductivity and Seebeck coefficient of carbon nanotubes to enhance their thermoelectric properties still poses substantial *** enhance the thermoelectric properties of single-walled carbon nanotubes(SWCNTs),a physical blending method is employed to fabricate aniline tetramer nanowires/SWCNTs films(ANIT-NW/SWCNTs)by a simple blend of ANIT-NW and *** intertwining of ANIT-NW and SWCNTs creates a dense 3-dimensional network structure,establishing tight connections between SWCNTs bundles and *** incorporation of ANIT-NW yields simultaneous enhancements in electrical conductivity and Seebeck coefficient,which is achieved by markedly increasing carrier mobility and reducing carrier concentration,*** resulting power factor(PF)of ANIT-NW/SWCNTs reaches an impressive value of 146.7μW·m^(-1)·K^(-2).Furthermore,by utilizing ANIT-NW/SWCNTs as p-type legs and polyethyleneimine/SWCNTs as n-type legs,a thermoelectric module comprising 5 pairs of legs is *** module exhibits an open-circuit voltage of 22 mV and an output power of 2.94μW when subjected to a temperature difference of 50 K,while being loaded with a 60-Ω***,these findings demonstrate the potential applications of ANIT-NW/SWCNTs films for flexible thermoelectric materials.

关键词： thermoelectric materials carbon nanotubes enhance their thermoelectric properties enhance thermoelectric properties carbon nanotubes swcnts tight connect electrical conductivity seebeck coefficient

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