Article
Polymer Science
Xiaonan Fan, Zhenjun Xiong, Jian Li, Jinyou Lin, Xiuhong Li
Summary: Petroleum-based materials are difficult to degrade and pollute the environment, but cellulose fibrous membranes offer a promising substitute. By constructing biodegradable cellulose fibrous membranes with wood particle fibers and introducing a crosslinking system, the mechanical properties can be enhanced. The addition of cellulose nanofibrils improves the tensile strength and elastic modulus, and the introduction of sodium alginate and Ca2+ further enhances these properties through interpenetrating entanglements and anchors.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)
Article
Chemistry, Physical
Rebecca Ostmans, Maria F. Cortes F. Ruiz, Jowan Rostami, Farhiya Alex Sellman, Lars Wagberg, Stefan B. B. Lindstrom, Tobias Benselfelt
Summary: Fibrillar hydrogels are stiff, low-density networks that can hold large amounts of water. This study measured the swelling pressures of anisotropic fibrillar hydrogels made from cellulose nanofibrils and developed a model to describe their behavior. The model includes mechanical elements representing the network and osmotic pressure, and it can be used to understand the importance of fibrillar networks in multicellular organisms and the influence of different components in plant cell walls.
Article
Chemistry, Multidisciplinary
Md Musfiqur Rahman, Islam Hafez, Mehdi Tajvidi, Aria Amirbahman
Summary: A novel microwave-assisted thawing process was developed to produce low-density CNF foams, which is more energy-efficient than traditional methods and allows for the incorporation of other nanomaterials.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Mehdi Tajvidi, Ikramul Hasan, Jinwu Wang, Douglas Bousfield
Summary: In this study, self-standing films of lignin-containing cellulose nanofibrils derived from recycled old corrugated cardboard (OCC) pulp were created. These films exhibited high gas barrier properties, complete UV-shielding ability, and reduced water vapor permeability compared to films made from bleached softwood Kraft (BSK) pulp. The addition of carboxymethyl cellulose improved the predictability of oxygen permeability values in the films. Crosslinking with trivalent aluminum ion or polyamide epichlorohydrin further decreased the oxygen permeability while enhancing the mechanical properties of the films.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Yuhang Ye, Feng Jiang
Summary: This work proposes an interfacial engineering strategy to fabricate a transient conductive hydrogel with well-balanced properties. By using TEMPO-oxidized cellulose nanofibrils as the interfacial stabilizer, a stable CNF encapsulated liquid metal nanoparticles is synthesized, forming an entirely physically crosslinked PAA-CNF-LMNPs hydrogel. This hydrogel features environmentally friendly fabrication, superb stretchability, satisfied solvent independent conductivity, high strain sensing sensitivity, stable signal transmission, as well as crack insensitive, self-healing, anti-freezing, and transient properties. It is considered a sustainable, durable, and high-performance platform for soft and wearable electronics.
Article
Chemistry, Applied
Haishun Du, Mahesh Parit, Kun Liu, Miaomiao Zhang, Zhihua Jiang, Tung-Shi Huang, Xinyu Zhang, Chuanling Si
Summary: This study demonstrated a simple and efficient method to functionalize cellulose nanopaper with water resistance, high transparency, excellent antibacterial, and barrier properties, expanding its potential applications. By impregnating chitosan and conducting halogenation, the functionalized CNP showed significant enhancements in strength, transmittance, optical haze, and antibacterial performance.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Multidisciplinary
Xue Gao, Lei Zhang, Mei Cui, Renliang Huang, Wei Qi, Rongxin Su
Summary: Phosphorylated cellulose nanocrystals (P-CNCs) are derivatives of cellulose nanocrystals (CNCs) that have garnered attention in various industries. A new eco-efficient process combining pre-phosphorylation with mechanical fibrillation was developed for the production of P-CNCs. This process not only improved the quality of P-CNCs, but also showed better environmental and economic performance compared to existing production processes.
Article
Biochemistry & Molecular Biology
Chen Gong, Jian-ping Ni, Chao Tian, Zhen-hua Su
Summary: This study demonstrates a simple strategy to fabricate cellulose aerogel with improved porous structure by adding SAE and regulating CNF properties. The fabricated cellulose aerogel shows potential as a cushion packaging material with enhanced strength properties.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Review
Chemistry, Multidisciplinary
Meghan E. Lamm, Kai Li, Ji Qian, Lu Wang, Nathalie Lavoine, Reagan Newman, Douglas J. Gardner, Teng Li, Liangbing Hu, Arthur J. Ragauskas, Halil Tekinalp, Vlastimil Kunc, Soydan Ozcan
Summary: The use of cellulose nanofibers in templating shows great promise in controlling the final properties of advanced functional materials, including mechanical strength, porosity, and others.
ADVANCED MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Darrel Sarvesh Naidu, Maya Jacob John
Summary: In this study, cellulose nanofibrils (CNFs) were incorporated into xylan-alginate films to enhance mechanical and barrier properties for food packaging applications. The CNFs had fiber diameters between 10 and 80 nm and formed a highly entangled web-like structure. The incorporation of CNFs into the xylan-alginate matrix increased tensile strength and Young's modulus of the films, while improving water vapor permeability without significant impact on thermal properties.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Chemistry, Multidisciplinary
Caitlyn M. Clarkson, Sami M. El Awad Azrak, Endrina S. Forti, Gregory T. Schueneman, Robert J. Moon, Jeffrey P. Youngblood
Summary: Cellulose nanomaterials are strong, stiff, nontoxic, biodegradable, and sustainable, but face challenges in compatibility with man-made materials and commercialization efforts. Current research aims to address these challenges and improve properties to compete with existing materials.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Akira Isogai
Summary: Nanocelluloses have unique morphologies, characteristics, and surface nanostructures, and can be prepared from abundant and renewable plant biomass resources. They have the potential to contribute to the establishment of a sustainable society and help overcome global environmental issues. However, overcoming fundamental and application-related issues is necessary for the further expansion of nanocelluloses.
ADVANCED MATERIALS
(2021)
Article
Materials Science, Paper & Wood
Vegar Ottesen, Kristin Syverud
Summary: Research showed that the swellability of cellulose nanofibrils depends on their degree of crystallinity rather than the diameter. Samples with higher crystallinity had a smaller diameter increase upon introduction of de-ionized water, while samples with lower crystallinity had a larger diameter increase.
Article
Polymer Science
Daniel J. Da Silva, Derval S. Rosa
Summary: In this study, cellulose nanofibers (CNFs) and citric acid were used to prepare a new type of porous foam material, and the effects of citric acid content and heat treatment on the foam properties were investigated. The results showed that increasing the citric acid content slightly enlarged the pore size and reduced the activation energy for cellulose thermal decomposition in the foam. Heat treatment only significantly affected the release rate of cellulose. The mechanical behavior of the foam changed after wetting. The foam exhibited a two-step mechanism for chromium adsorption and had suitable water resistance for applications as an adsorbent in aqueous media.
Article
Materials Science, Ceramics
Toshiki Miyazaki, Shunki Muroyama
Summary: This study investigated the synthesis of fluorapatite under different conditions and examined the resulting differences in crystalline structure and chemical durability. The effectiveness of F- incorporation was found to be higher with 1-ethyl-3-methylimidazolium tetrafluoroborate compared to 1-ethyl-3-methylimidazolium hexafluorophosphate. Additionally, it was observed that the solubility of the product tended to decrease in acidic conditions with higher amounts of fluorine substituted in the crystal lattice.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Yu Dai, Zheng Cheng, Chenbo Meng, Yihao Yuan, Longbo Luo, Xiangyang Liu
Article
Chemistry, Physical
Rui Qn, Qingling Qan, Yang Liu, Anping Ou, Yulong Li, Xin Liu, Xiangyang Liu, Xu Wang
JOURNAL OF PHYSICAL CHEMISTRY C
(2019)
Article
Nanoscience & Nanotechnology
Kun Fan, Liansi Peng, Yang Liu, Yu Li, Yue Chen, Yeqiao Meng, Xiangyang Liu, Wei Feng, Xu Wang
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Engineering, Chemical
Xin Liu, Xin Li, Yulong Li, Rui Qin, Feng Huang, Xu Wang, Xiangyang Liu
Summary: The introduction of nitrogen atoms into graphene sheets has been demonstrated to enhance the fluorination reactivity and regulate the bonding nature and location of C-F bonds. This study also provides a method for preparing N, F bifunctional graphene in large quantities.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Review
Chemistry, Multidisciplinary
Xinyu Chen, Kun Fan, Yang Liu, Yu Li, Xiangyang Liu, Wei Feng, Xu Wang
Summary: Fluorinated graphene, as a new member of the graphene derivatives family, has attracted attention due to its unique properties and potential applications. Recent research has made progress in synthesis and applications, with a detailed summary of the relationship between structure and properties. Functional chemistry of fluorinated graphene has been thoroughly analyzed, opening up pathways for functionalization and broadening its applications.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xu Wang, Ji Ma, Wenhao Zheng, Silvio Osella, Nicolas Arisnabarreta, Jorn Droste, Gianluca Serra, Oleksandr Ivasenko, Andrea Lucotti, David Beljonne, Mischa Bonn, Xiangyang Liu, Michael Ryan Hansen, Matteo Tommasini, Steven De Feyter, Junzhi Liu, Hai Wang, Xinliang Feng
Summary: The study introduces a novel structure of graphene nanoribbon that can transition between semiconductor and near-metallic properties by adjusting the length of zigzag segments and distance between cove units. A unique member of this GNR family, 6-CZGNR-(2,1), was successfully synthesized through a specific method, exhibiting promising potential in nanoelectronics with a record narrow optical bandgap and high carrier mobility.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Jian Liu, Xin Li, Lingie Zhang, Xiangyang Liu, Xu Wang
Summary: In this study, the fluorination reaction between graphene and fluorine gas was investigated, and it was found that the cross-linking between nanographene molecules is achieved through a free-radical mechanism. This mechanism was also observed in other small nanographene molecules, indicating its universality. This research provides important insights into the chemical transformation of graphene layers into 2D diamond structure during chemical adsorption.
Article
Nanoscience & Nanotechnology
Benyuan Huang, Yang Liu, Jiawei Duan, Xin Li, Yulong Li, Rui Qin, Xu Wang, Yongbing Zhuang, Xiangyang Liu
Summary: This study develops a fluorination strategy with an atomic fluorination mechanism to modify graphene, which enables the preparation of graphene with a higher fluorination degree and relatively homogeneous fluorine distribution. The resulting fluorinated graphene possesses higher thermal stability, thermal conductivity, and electrical insulation, demonstrating its potential applications in thermal conduction and electrical insulation for microelectronics.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Chemical
Zhuang Nie, Haifeng Yang, Minghua Zhang, Weimiao Wang, Xiaolong Fu, Zhiqiang Qiao, Guangcheng Yang, Xiangyang Liu, Xu Wang
Summary: The direct fluorination method was used to modify nanosized aluminum particles, converting the nonenergetic aluminum oxide shell into a partially fluorinated metal oxide shell. This modification improved the particles' corrosion resistance, oxidation behavior, and combustion performance, showcasing its high efficiency and solvent-free procedure for practical applications.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Engineering, Chemical
Jiaxiang Liu, Kun Fan, Xin Li, Rui Qin, Xu Wang, Xikui Liu, Xiangyang Liu
Summary: This study reports a two-dimensional confining radical polymerization (TDCRP) using fluorinated graphene (FG) to widely regulate the dispersity (D?) of polymers. The D? of vinyl polymers can be controlled through vinyl monomers attacking the C-F bonds for initiation and adjusting the surface morphology of the FG plane and polymerization temperature.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Engineering, Chemical
Qian Yin, Yitian Qin, Junwei Lv, Xu Wang, Longbo Luo, Xiangyang Liu
Summary: In this study, a novel liquid-crystal-like polyimide film was designed to reduce the dielectric loss by minimizing intermolecular friction work. The experimental results showed that the liquid-crystal-like film exhibited extremely low Df values at high frequencies and demonstrated excellent overall properties.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Zhuang Nie, Kun Zhang, Xinyu Chen, Jingxin Wang, Huile Gao, Bingwen Zheng, Qihong Wu, Yingkun Guo, Xiangyang Liu, Xu Wang
Summary: A novel ROS-response contrast-enhanced MRI nanoprobe (RCMN) is developed, which utilizes fluorinated carbon nanosheets (FCNs) with multi-hydroxyl and 2,2,6,6-tetramethylpiperidin-1-oxyl groups for capturing ROS and temporarily gathering in the heart to trigger MRI signal changes. Compared to clinical MRI agents, RCMNs can detect cardiac abnormalities in disease mice 8 weeks in advance, significantly advancing the diagnostic window of DCM. This is the first ROS-response metal-free T-2-weighted MRI probe for the early diagnosis of DCM mice model. Furthermore, RCMNs can scavenge excessive ROS timely to alleviate oxidative stress.
Article
Polymer Science
Qian Yin, Xin Li, Yitian Qin, Kun Fan, Xu Wang, Xiangyang Liu
Summary: By introducing copper ions and benzimidazole, a polyimide substrate (PICu) with a wider elastic range and intermolecular slippery spacing was fabricated. This PICu substrate exhibited significantly enhanced folding resistance even under an ultralow folding radius, which was almost 10 times smaller than that in current reports.
Article
Polymer Science
Yang Wei, Qian Yin, Yan Chen, Xiangyang Liu, Xu Wang
Summary: This study presents a strategy to develop foldable polyimide (PI) films with excellent dynamic and static folding resistance. The newly developed folding-chain PI (FPI) films show enhanced elastic behavior and can endure a large curvature without any crease. FPI-20 film, for example, can withstand over 200,000 folds with a folding radius of 0.5 mm, while pure PI film shows creases after only 1,000 folds. This research is of great significance for the development of lighter and thinner flexible electronics.
Review
Engineering, Electrical & Electronic
Xin Wang, Shuyan Liu, Haoyu Han, Xiangyang Liu, Xu Wang
Summary: This article provides a detailed analysis of the structure-property relationships of fluorinated graphene, including its chemical and physical properties, as well as the manufacturing process. It also examines the latest developments in utilizing fluorinated graphene as a functional filler in composite materials, focusing on improving thermal conductivity and mechanical properties.
IET NANODIELECTRICS
(2023)
