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Unraveling the Rheology of Nanocellulose Aqueous Suspensions:A Comprehensive Study on biomass-Derived Nanofibrillated Cellulose

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Journal of Renewable materials 2024年第3期12卷 443-455页

作者： Mingyue Miao Fei Wang Qing Li Longchen Tao Chenchen Dai Yu Liu Shujuan Han Wenshuai Chen Ping Lu Key Laboratory of Bio-Based Material Science and Technology Ministry of EducationNortheast Forestry UniversityHarbin150040China Department of Chemistry and Biochemistry Rowan UniversityGlassboroNew Jersey08028USA

The rheological properties of nanocellulose aqueous suspensions play a critical role in the development of nanocellulose-based bulk ***-crystalline,high-aspect ratio,and slender nanofibrillated cellulose(NFC)were extracted from four biomass *** cellulose nanofibrils and nanofibril bundles formed inter-connected networks in the NFC aqueous *** storage moduli of the suspensions with different concentrations were higher than their corresponding loss *** the concentration increased,the storage and loss modulus of NFC dispersion *** the shear rate increased to a certain value,there were differences in the changing trend of the rheological behavior of NFC aqueous suspensions derived from different biomass resources and the suspensions with different solid *** dispersion’s storage and loss modulus increased when the temperature rose to nearly 80℃.We hope this study can deepen the understanding of the rheological properties of NFC colloids derived from different biomass resources.

关键词： biomass resources nanofibrillated cellulose high-pressure homogenizer suspension rheology properties

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Selective Emission Fabric for Indoor and Outdoor Passive Radiative Cooling in Personal Thermal Management

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Nano-Micro Letters 2025年第8期 314-327页

作者： Haijiao Yu Jiqing Lu Jie Yan Tian Bai Zhaoxuan Niu Bin Ye Wanli Cheng Dong Wang Siqi Huan Guangping Han Key Laboratory of Bio-Based Material Science and Technology (Northeast Forestry University) Ministry of Education Department of Astronautical Science and Mechanics Harbin Institute of Technology (HIT)

Radiative cooling fabric creates a thermally comfortable environment without energy input, providing a sustainable approach to personal thermal management. However, most currently reported fabrics mainly focus on outdoor cooling, ignoring to achieve simultaneous cooling both indoors and outdoors, thereby weakening the overall cooling performance. Herein, a full-scale structure fabric with selective emission properties is constructed for simultaneous indoor and outdoor cooling. The fabric achieves 94% reflectance performance in the sunlight band（0.3–2.5 μm） and 6% in the mid-infrared band（2.5–25 μm）, effectively minimizing heat absorption and radiation release obstruction. It also demonstrates 81% radiative emission performance in the atmospheric window band（8–13 μm） and 25% radiative transmission performance in the mid-infrared band（2.5–25 μm）, providing 60 and 26 W m-2net cooling power outdoors and indoors. In practical applications, the fabric achieves excellent indoor and outdoor human cooling, with temperatures 1.4–5.5℃ lower than typical polydimethylsiloxane film. This work proposes a novel design for the advanced radiative cooling fabric, offering significant potential to realize sustainable personal thermal management.

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Carbon dots confined in 3D polymer network: Producing robust room temperature phosphorescence with tunable lifetimes

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Chinese Chemical Letters 2022年第2期33卷 783-787页

作者： Yingxiang Zhai Ping Wang Xinyue Zhang Shouxin Liu Jian Li Zhijun Chen Shujun Li Key Laboratory of Bio-based Material Science&Technology Ministry of EducationNortheast Forestry UniversityHarbin 150040China

Room temperature phosphorescence(RTP) is important in both organic electronics and encryption. Despite rapid advances, a universal approach to robust and tunable RTP materials based on amorphous polymers remains a formidable challenge. Here, we present a strategy that uses three-dimensional(3 D)confinement of carbon dots in a polymer network to achieve ultra-long lifetime phosphorescence. The RTP of the as-obtained materials was not quenched in different polar organic solvents and the lifetime of the RTP was easily tuned by adjusting the amount of crosslinking or varying the drying temperature of the 3 D molecular network. As a demonstration of potential application, as-obtained RTP materials were successfully used to prepare RTP fibres for flexible textiles. As well as bringing to light a fundamental principle for the construction of polymer materials with RTP, we have endowed traditional carbon dots and polymers with fresh features that will expand potential applications.

关键词： Carbon dots 3D polymer network Room temperature phosphorescence Tunable lifetime Generality

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Sustainable Seawater Desalination and Energy Management:Mechanisms,Strategies,and the Way Forward

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Research 2024年第3期2023卷 595-611页

作者： Meng Wang Yen Wei Ruoxin Li Xin Wang Chengyu Wang Nanqi Ren Shih-Hsin Ho State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150001China Department of Chemistry Tsinghua UniversityBeijing 100084China Key Laboratory of Bio-based Material Science&Technology(Northeast Forestry University) Ministry of EducationHarbin 150040China.

Solar-driven desalination systems have been recognized as an effective technology to address the water ***,evaporators prepared based on advanced manufacturing technologies have emerged as a promising tool in enhancing ocean energy *** this review,we discussed the thermal conversion,energy flow,salt deposition mechanisms,and design strategies for solar-driven desalination systems,and explored how to improve the desalination performance and energy use efficiency of the systems through advanced manufacturing *** future perspectives,we determined the feasibility of coupling solar-driven solar desalination systems with multi-stage energy utilization systems and emerging artificial intelligence technologies,for which conclusions are given and new directions for future desalination system development are ***,exciting opportunities and challenges in the face of basic research and practical implementation are discussed,providing promising solutions and blueprints for green and novel desalination technologies while achieving sustainable development.

关键词： Sustainable Solar directions

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Electrocatalytic Lignin Valorization into Aromatic Products via Oxidative Cleavage of Cα-Cβ Bonds

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研究（英文） 2023年第12期6卷 106-117页

作者： Jianing Xu Juan Meng Yi Hu Yongzhuang Liu Yuhan Lou Wenjing Bai Shuo Dou Haipeng Yu Shuangyin Wang Key Laboratory of Bio-based Material Science and Technology of Ministry of Education Northeast Forestry UniversityHarbin 150040China School of Resources and Environmental Engineering Jiangsu University of TechnologyChangzhou 213001China State Key Laboratory of Chem/Bio-Sensing and Chemometrics College of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082China

Lignin is the most promising candidate for producing aromatic compounds from ***,the challenge lies in the cleavage of C-C bonds between lignin monomers under mild conditions,as these bonds have high dissociation *** oxidation,which allows for mild cleavage of C-C bonds,is considered an attractive *** achieve low-energy consumption in the valorization of lignin,the use of highly efficient electrocatalysts is *** this study,a meticulously designed catalyst consisting of cobalt-doped nickel(oxy)hydroxide on molybdenum disulfide heterojunction was *** presence of molybdenum in a high valence state promoted the adsorption of tert-butyl hydroperoxide,leading to the formation of critical radical *** addition,the incorporation of cobalt doping regulated the electronic structure of nickel,resulting in a lower energy *** a result,the heterojunction catalyst demonstrated a selectivity of 85.36％for cleaving theCα-Cβbond in lignin model compound,achieving a substrate conversion of 93.69％under ambient *** addition,the electrocatalyst depolymerized 49.82 wt％of soluble fractions from organosolv lignin(OL),resulting in a yield of up to 13 wt％of aromatic ***,the effectiveness of the prepared electrocatalyst was also demonstrated using industrial Kraft lignin(KL).Therefore,this research offers a practical approach for implementing electrocatalytic oxidation in lignin refining.

关键词： Electrocatalysts

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A Scalable Bacterial Cellulose Ionogel for Multisensory Electronic Skin

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Research 2022年第4期2022卷 249-259页

作者： Geyuan Jiang Gang Wang Ying Zhu Wanke Cheng Kaiyue Cao Guangwen Xu Dawei Zhao Haipeng Yu Key Laboratory on Resources Chemicals and Materials of Ministry of Education Shenyang University of Chemical TechnologyShenyang 110142China Key Laboratory of Bio-Based Material Science and Technology of Ministry of Education Northeast Forestry UniversityHarbin 150040China Tianjin Key Laboratory of Pulp and Paper Tianjin University of Science and TechnologyTianjin 300457China

Electronic skin(e-skin),a new generation of flexible electronics,has drawn interest in soft robotics,artificial intelligence,and biomedical ***,most existing e-skins involve complex preparation procedures and are characterized by singlesensing capability and insufficient ***,we report on a one-step strategy in which a thermionic source is used for the in situ molecularization of bacterial cellulose polymeric fibers into molecular chains,controllably constructing an ionogel with a scalable mode for *** synergistic effect of a molecular-scale hydrogen bond interweaving network and a nanoscale fiber skeleton confers a robust tensile strength(up to 7.8 MPa)and high ionic conductivity(up to 62.58 mS/cm)on the as-developed *** by the tongue to engineer the perceptual patterns in this ionogel,we present a smart e-skin with the perfect combination of excellent ion transport and discriminability,showing six stimulating responses to pressure,touch,temperature,humidity,magnetic force,and even *** study proposes a simple,efficient,controllable,and sustainable approach toward a low-carbon,versatile,and scalable e-skin design and structure-performance development.

关键词： string versatile chains

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Self-Assembled MXene Supported on Carbonization-Free Wood for a Symmetrical All-Wood Eco-Supercapacitor

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ACS Applied materials and Interfaces 2024年第28期16卷 36322-36332页

作者： Yu, Yuan Chen, Wei-Hsin Wang, Xin Sun, Xiaohan Jiang, Zishuai Li, Meichen Fu, Xinmiao Yang, Haiyue Li, Menggang Wang, Chengyu Key Laboratory of Bio-Based Material Science and Technology of Ministry of Education Northeast Forestry University Harbin150040 China Department of Aeronautics and Astronautics National Cheng Kung University Tainan701 Taiwan School of Materials Science and Engineering Peking University Beijing100871 China

As an emerging two-dimensional (2D) material, MXene has garnered significant interest in advanced energy storage systems, yet the stackable structure, poor mechanical stability, and lack of moldability limit its large-scale applications. To address this challenge, herein, the self-assembly of MXene on carbonization-free wood was obtained to serve as high-performance electrodes for symmetrical all-wood eco-supercapacitors by a steam-driven self-assembly method. This method can be implemented in a low-temperature environment, significantly simplifying traditional high-temperature annealing processes and generating minimal impact on the environment, human health, and resource consumption. The environmentally friendly steam-driven self-assembly strategy can be further extended into various wood-based electrodes, regardless of the types and structures of wood. As a typical platform electrode, the optimized MXene@delignified balsa wood (MDBW) achieves high areal capacitance and specific capacitance values of 2.99 F cm-2 and 580.55 F g-1 at an extensive mass loading of 5.16 mg cm-2, respectively, with almost loss-free capacitance after 10,000 cycles at 50 mA cm-2. In addition, an all-solid-state symmetrical all-wood eco-supercapacitor was further assembled based on MDBW-20 as both positive and negative electrodes to achieve a high energy density of 19.22 μWh cm-2 at a power density of 0.58 mW cm-2. This work provides an effective strategy to optimize wood-based electrodes for the practical application of biomass eco-supercapacitors. © 2024 American Chemical Society.

关键词： Capacitance

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Bidirectionally aligned MXene hybrid aerogels assembled with MXene nanosheets and microgels for supercapacitors

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Rare Metals 2023年第4期42卷 1249-1260页

作者： Pei-Xuan Li Guo-Zhen Guan Xin Shi Lei Lu Yu-Chao Fan Jie Xu Yuan-Yuan Shang Ying-Jiu Zhang Jin-Quan Wei Feng-Mei Guo Key Laboratory of Material Physics Ministry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China Key Lab for Advanced Materials Processing Technology of Education Ministry State Key Lab of New Ceramic and Fine ProcessingSchool of Materials Science and EngineeringTsinghua UniversityBeijing100084China

MXene nanomaterials are one of the most promising electrode material candidates for supercapacitors owing to their high conductivity,abundant surface functional groups and large surface ***,electrodes based on MXene may result in low ion-accessible surface area and blocked ion transport pathways because of the self-restacking of MXene *** is essential to suppress the self-res tacking of nanosheets and increase the electrochemical active sites in order to optimize the *** this work,bidirectionally aligned MXene hybrid aerogel(A-MHA)assembled with MXene nanosheets and microgels is prepared using a facile bidirectional freeze casting and freeze-drying *** bidirectionally aligned structure together with the three-dimensional structured microgels in the A-MHAs,can improve the ionaccessible surface area and provide more barrier-free channels by exposing more active sites and ensuring electrolyte transport *** A-MHA with MXene microgels content of 40 wt%exhibits a high specific capacitance of 760 F·g^(-1)at 1 A·g^(-1)and a remarkable cyclic performance of 97%after 10,000 cycles at100 mV·s^(-1)in 1 mol·L^(-1)H_(2)SO_(4)electrolyte.A-MHAs show remarkable electrochemical properties and are of potential application in energy storage.

关键词： MXene MXene microgels Bidirectionally aligned structure Electrodes Supercapacitors

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Structural and magnetic properties of La0.80-xEuxNa0.20MnO3 perovskite manganites with enhanced magnetocaloric effect by appropriate Eu-doping content

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Ceramics International 2025年第16期51卷 21856-21866页

作者： Zhang, Huiyan Yan, Jiazhe Shao, Cuiping Zhu, Ye Zhu, Fucheng Chen, Yunbo Cheng, Yuwen Gu, Weihua Li, Hailing Liu, Zhiyuan Jin, Chuangui Xia, Ailin Anhui Key Lab of Metal Material and Processing Anhui University of Technology Ma'anshan243002 China Ministry of Education Ma'anshan243002 China School of Material Science and Engineering Anhui University of Technology Ma'anshan243002 China

The structural, magnetic and magnetocaloric properties of the La0.80-xEuxNa0.20MnO3 (x = 0, 0.05, 0.10, 0.15, 0.20) perovskite manganites prepared by sol-gel with urea chelating agent were studied. The lattice parameters, cell volume, average ionic radii of A-site cations and tolerance factor are reduced by the substitution of Eu3+, whereas it intensifies structural distortion and leads to a phase transformation from rhombohedral R3‾c to orthorhombic Pnma crystal structure. The density functional theory (DFT) calculations confirm the thermodynamic feasibility of this structural transformation in Eu-doped La0.80-xEuxNa0.20MnO3 systems, as evidenced by formation energy analysis of three La(Eu)NaMnO3 perovskites with different concentrations. All the samples exhibit second-order phase transition. Increasing Eu3+ content from x = 0 to 0.2 decreases Curie temperature from 333 K to 151 K and reduces magnetic entropy change from 3.13 J kg−1K−1–2.13 J kg−1K−1 under 2 T field, which is ascribed to weakened Mn3+/Mn4+ double-exchange ferromagnetic interaction due to enhanced lattice distortion. For the dual-phase compound La0.65Eu0.15Na0.20MnO3, the table-like magnetocaloric effect and the Griffiths phase can be observed. When x = 0.05, i. e. a small amount of Eu3+ doping could enhance the spin-lattice coupling and then promotes the magnetic entropy change (3.49 J kg−1K−1 under ΔH = 2 T at 311.5 K) of La0.75Eu0.05Na0.20MnO3 near room temperature, making it a good candidate for the working materials used in magnetic refrigerators. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Manganites

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Electrotunable interfacial friction: A brief review

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Chinese Chemical Letters 2025年第4期36卷 96-108页

作者： Yu Zhang Weifeng Lin Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education School of ChemistryBeihang UniversityBeijing 100191China Center for Bioinspired Science and Technology Hangzhou International Innovation InstituteBeihang UniversityHangzhou 311115China Department of Molecular Chemistry and Material Science Weizmann Institute of ScienceRehovot 7610001Israel

Using different external stimuli to control interfacial friction, rather than just pursuing low friction, is a highly attractive research regime due to its economic and scientific importance. One option to achieve such a goal is to use external stimuli that modulate the energy dissipation pathways. In particular, electric stimuli such as surface potential has gained remarkable interest for two reasons: Electrotunable friction has the potential for real-time, in situ manipulation of friction, and external electric stimuli is relatively easy to apply and to remove for reversible change. In this review, we explore the emerging research area of electrotunable friction mainly under the boundary lubrication situation, when the contacting surfaces are separated by a molecularly thin layer, reviewing typical achievements from experiments using electrochemical atomic force microscopy and modified surface force balances, as well as molecular dynamics simulations. Additionally, we explore the theoretical and practical challenges that may need to be tackled in the future.

关键词： Electric stimuli Friction manipulation Hydration lubrication Surface force balance Boundary lubrication

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