APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Hongbing Zhang,Sijie Wang,Anqi Wang,Yuli Li,Feng Yu,Yong Chen
Recently, highly abundant natural materials have been used in the fields of energy storage because of their environmental friendliness and low cost. However, use of some natural materials like cellulose as host matrices of gel polymer electrolytes (GPEs) is challenging owing to the strong intra- and inter-molecular hydrogen bonding. Herein, a green GPE film was prepared by chemically grafting soft chain-polyethylene glycol (PEG) onto the backbone of cellulose. The introduction of PEG significantly improved the toughness of cellulose from 118 × 10 3 to 270 × 10 3 kJ m −3 , as well as raised the wettability in carbonate-based liquid electrolyte solutions from 22.6% to 141.7%. The first cycle coulomb efficiency stayed above 90%. The capacity retention of LiFePO 4 /Li batteries assembled with the as-obtained GPE reached 80.3% after 300 cycles at 0.2 C. In sum, the as-obtained cellulose-based GPEs look promising to replace separators and liquid electrolytes in Li-ion batteries.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Chengqi Feng,Yuhua Chen,Chenkai Jin,Juncheng Huang,Haining Na,Chao Fang,Jin Zhu
B-OH and -COOH groups were in situ doped into solid acids to construct localized strong adsorption solid acids. • An enzyme-like action mode was achieved. • 98.9% cellulose conversion in pure water without detectable sugar degradation byproducts. • This enables the green, high-value conversion of non-food cellulosic feedstocks. The effective hydrolysis of cellulose is crucial for valorizing biomass; however, the efficiency of traditional solid acid catalysts is often limited by insufficient adsorption and activation of cellulose. Inspired by the cellulose-binding domain of cellulase, which can disrupt the aggregate structure of cellulose, we used a one-pot hydrothermal method to synthesize carbon-based solid acid catalysts rich in boronic acid hydroxyl (B-OH) and carboxyl (-COOH) groups using furanboronic acid and methylglyoxal as precursors. Catalytic performance evaluation indicates that surface -OH groups (B-OH and C-OH, including phenolic -OH) effectively unlock the aggregate structure of cellulose, significantly improving mass transfer efficiency and thereby promoting cellulose conversion. The optimal catalyst, A1B1@C, achieved a 98.9% cellulose conversion and a 44.7% glucose yield within 4 h in pure water at 180 °C. Mechanistic studies revealed that surface hydroxyl groups, including B-OH and C-OH, collectively disrupt the internal hydrogen-bond network of cellulose through strong adsorption and anchoring. Among them, B-OH is a characteristic and strong binding component. In contrast, the adjacent -COOH groups hydrolyze the exposed glycosidic bonds. Furthermore, the catalyst exhibited excellent cycling stability. This work highlights the critical role of adsorption capacity in solid acid-mediated cellulose conversion and provides a new design strategy for such catalysts. A locally strong adsorbing solid acid was prepared by in situ doping B-OH during hydrothermal carbonization via a one-pot method. This synergistically catalyzed the hydrolysis of cellulose to sugars via -COOH, achieving catalytic efficiency surpassing that of single functional groups. Download: Download high-res image (108KB) Download: Download full-size image
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Mingxu Liu,Sifu Bi,Shouhang Wang,Yu Zhang,Kaiqi Zhang,Zhongke Yang,Kexin Wang,Xin Wang,Yixiao Guo,Haiping Liu
Solid-state lithium batteries, offering high energy density and enhanced safety, are widely regarded as the leading candidates for next-generation battery technology. Among the various solid-state electrolyte systems, polyethylene oxide (PEO)-based composite solid-state electrolytes (CSEs) integrate the merits of multiple electrolyte types, positioning them among the most promising options for practical application. To further optimize and enhance the integrated performance of PEO-based CSEs, this study presents a cellulose acetate (CLA)-reinforced PEO-Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 (LLZTO) CSE. CLA provides additional Li + transport pathways within the PEO matrix and promotes the dissociation of LiTFSI. As a result, the fabricated CSE exhibits excellent Li + conductivity (2.72 × 10 −4 S cm −1 ) and a high Li + transference number (0.62) at 60 °C. Moreover, the CLA network imparts superior mechanical robustness to the CSE, thereby maintaining the structural integrity of the electrolyte during battery operation and enhancing cycling stability. The Li-Li symmetric battery incorporating this electrolyte achieves stable cycling for over 4200 h at a current density of 0.1 mA cm −2 . Furthermore, the LiFePO 4 (LFP) solid-state battery delivers a high initial discharge capacity of 158.8 mAh g −1 at 0.2 C and 60 °C, exhibiting a capacity retention of 93.0% after 100 cycles. At 1 C, the battery attains a high initial capacity of 150.3 mAh g −1 and maintains a capacity retention of 80.6% after 600 cycles, while also achieving stable cycling for 1200 cycles at 2 C. This work provides a promising strategy for the application of cost-effective composite solid electrolytes with superior comprehensive performance in solid-state lithium batteries.
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FOOD HYDROCOLLOIDS
·
2026
·
IF 13.8
Wanjun Zhao,Qingrong Huang,Changhu Xue,Zihao Wei
Food-grade particles capable of efficient interfacial adsorption and robust interfacial layer formation are highly desirable for stabilizing multiphase food colloids. In this study, shellac–ethyl cellulose Janus-like nanoparticles (SL–EC JLN) were fabricated by flash nanoprecipitation and systematically characterized in terms of their structure, physicochemical properties, stability and oil–water interfacial behavior. FE-SEM revealed the presence of dumbbell-like particles with anisotropic features, while FTIR, DSC and TGA analyses further distinguished the SL–EC JLN from the single-component nanoparticles (SLN, ECN) and their physical mixture (ECN + SLN). Compared with SLN, ECN, and ECN + SLN, the SL–EC JLN exhibited superior physical stability during storage. In addition, the SL–EC JLN remained stable under pH, ionic strength, and thermal stresses. At the oil–water interface, SL–EC JLN exhibited enhanced adsorption kinetics and interfacial reorganization, as reflected by the lowest quasi-equilibrium interfacial tension and higher diffusion, penetration, and rearrangement rate constants. The SL–EC JLN displayed more pronounced frequency dependence of the interfacial dilatational modulus and more regular nonlinear stress–deformation loops, suggesting a more coordinated interfacial organization with greater adaptability to large-amplitude deformation. These findings suggest that the co-assembled SL–EC Janus-like particle architecture contributes to improved colloidal stability and interfacial regulation, providing a basis for the rational design of food-grade anisotropic particles for advanced interfacial engineering.
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COMPOSITES COMMUNICATIONS
·
2026
·
IF 8.6
Yuqian Guo,Langqian Chen,Zhixin Jia,Guihua Xiao,Jinghuan Chen,Yun Cheng,Linghua Chen,Leilei Hou,Haiping Wang,Hongjie Zhang
Cellulose elastomer integrates thermochromic, mechanochromic, hydrochromic, and water-deformation. • Rapid thermochromic response within 5 s at 35 °C, near body temperature. • Mechanochromic color change from red to white with 1800% elongation. • Water deformation enables controllable bending and gripping functions. • Multifunctional elastomer shows great promise for robotic electronic skin. Cellulose-based smart materials hold great promise for applications in the field of flexible electronics. Simultaneously realizing multiple stimulus-responsive functionalities while preserving the outstanding mechanical properties of cellulose-based smart materials remains a considerable challenge. High-performance cellulose-based elastomers integrating thermochromic, mechanochromic, hydrochromic, and water deformation capabilities were successfully fabricated through a simple synthetic strategy. Thermochromic response is remarkably rapid, occurring within 5 s at a transition temperature of 35 °C. The response temperature is close to human physiological temperature, and demonstrated excellent reversibility and repeatability. Mechanochromic behavior exhibited a visual color change from red to white upon stretching. Meanwhile, during the mechanochromic process, cellulose-based elastomer achieved an outstanding elongation at break of up to 1800%. Furthermore, water deformation allowed for controllable bending and gripping functions. Given these multifunctional properties, cellulose-based elastomer shows great potential in the field of smart bionic prosthetics, as it could simultaneously perform complex functions such as temperature sensing, joint deformation monitoring, and underwater grasping, thereby providing new design insights for the development of next-generation intelligent biomimetic materials. Download: Download high-res image (453KB) Download: Download full-size image
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CARBOHYDRATE POLYMERS
·
2026
·
IF 13.2
Gaofeng Cheng,Junjie Liu,Daquan Li,Wei Liu,Weiyu Li,Shaochao Sun,Guangfu Qain,Minsheng Lu,Douyong Min,Changzhou Chen
Practical electromagnetic interference (EMI) shielding materials are hard to combine light weight, flexibility, processability and high effectiveness. Conductive PEDOT@EPF fibers were prepared by in situ oxidative polymerization poly(3,4-ethylenedioxythiophene) (PEDOT) on bleached eucalyptus pulp fibers. Carbon fibers were chemically modified (MCF) to introduce surface groups, improving dispersion and interfacial adhesion with PEDOT@EPF. These two conductive fibers were blended and formed into cellulose composite paper via wet-laid papermaking. The optimized composite shows 787 S m −1 in conductivity. With a surface density of 240 g m −2 , its total EMI SE T reaches 62 dB across X-band (8.2–12.4 GHz), blocking >99.99% of radiation. After 5 repulping and reforming cycles, 95% of initial SE T is retained. The material exhibits a tensile strength of 18.2 MPa, with only a 28% reduction after five cycles, maintaining excellent mechanical properties. It exhibits a relatively low bulk density (0.30–0.45 g cm −3 ), combining lightweight properties with excellent mechanical performance. Large-area sheets (1.8 m × 1.2 m) are produced via wet-laid technique, and the composite retains cutting, bending and folding ability like paper. This work offers a practical route to recyclable cellulose-based EMI shielding materials for wearables, electronics and industrial protection.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.7
Bei Zhang,Xin-Xin Chen,Xin-Ping Wang,Xiao-Rui Ge,Jia-Ying Chen,Si-Min Zheng,Guan-Hui Liu,Jie Tu,Dong-Yang Zhang,Xiao-Hui Yao,Wei-Guo Zhao
BC synergistic anti-dialysis strategy was used to prepare anti-swelling hydrogels. • The BP-RD hydrogel exhibits high water content and excellent mechanical properties. • The dense network structure endows the potential for underwater applications. • This method can be used to prepare biomimetic double-layer hydrogels. Hydrogels, a typical solid–liquid hybrid material, have shown great potential in wearable electronics, tissue engineering, and other fields; however, their underwater applications have long been limited by the ‘swelling–weakening ‘effect. To address this challenge, this study proposes a ‘bacterial cellulose (BC) synergistic reverse -dialysis-induced confined dense network ‘strategy to construct a BP-RD hydrogel with high water content and excellent mechanical–functional properties through a one-step approach. The design innovatively uses the reverse dialysis process to drive dual dynamic assembly. First, polyethylene glycol-mediated water extraction compresses the BC network to form a rigid confined space. Then, polyvinyl alcohol molecules move and crystallize in the BC framework, creating a dense interpenetrating network. At 75% moisture content, the material achieved 22 MPa fracture strength, 145 MJ m −3 toughness, and 1.58 S m −1 conductivity owing to the confinement effect. Additionally, it showed outstanding antiswelling characteristics (the tensile strength increased by 14% after 7 days). This method can also be applied to combine existing hydrogels in one step, creating a double-layer hydrogel structure with improved mechanical properties and swelling performance. This approach solves the key problems of the failure of traditional hydrogels to expand, the cumbersome preparation process, and the difficulty in meeting the performance requirements of multiple scenarios.
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Small
·
2026
·
IF 11.8
Wanyun Huang,Xianghua Hu,Jiahao Li,Mengting Hu,Xiaoyun Qing,Qinpei Wang,Yunuo Niu,Xuhai Zhu,Yangbing Wen
Cellulose papers are sustainable alternatives to plastics but are often limited by poor water resistance and barrier properties. This study introduces a method to overcome these limitations by integrating softwood kraft lignin as a functional filler. Micronized lignin particles (4 µm) were produced via wet grinding and dispersed into a paper matrix at loadings up to 40%, followed by high-temperature pressing (160°C) to soften the lignin. This process created a composite with exceptional interfacial bonding between the softening lignin and cellulose fibers, yielding outstanding mechanical properties: a tensile strength of 82 MPa, a folding endurance of 891 cycles, and a density of 1 g/cm 3 . The barrier properties were also significantly enhanced, with water vapor and oxygen transmission rates reduced to 287 g/m 2 ·d and 114 cm 3 /m 2 ·d·0.1 MPa, respectively, representing decreases of 67% and 73% compared to conventional paperboard. This work establishes a viable paradigm for creating high-performance, fully biodegradable lignin-cellulose composites that bridge the functionality gap between paper and plastic, demonstrating immediate potential for sustainable packaging and covering applications.
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高影响因子
ACS Applied Polymer Materials
·
2026
·
IF 5.2
Yidan Zhang,Wensi Jiang,Yuqian Liu,Yang Huang,Chao Liu,Huining Xiao,Farzad Seidi
Injectable self-healing hydrogels with intrinsic antibacterial properties represent a promising advancement for wound management. This study presents a natural-based hydrogel system for full-thickness wound healing, fabricated via the hybridization of quaternary ammonium cellulose phenylboronic acid (QAC-PBA) with quaternary ammonium glycol chitosan (QGCS) and the in situ encapsulation of berberine (BBR). The quaternary ammonium groups endow intrinsic antibacterial properties, and the dynamic boronate esters confer self-healing and injectable properties to the hydrogel. Additionally, the release of BBR provides an additional antibacterial mechanism by targeting possible wound sites that are not in direct contact with the hydrogel. The hydrogel demonstrated a strong antibacterial effect (up to 94.1% against E. coli and 99.8% against S. aureus), fast self-healing, injectability, and high biocompatibility (>100% viability against NIH3T3 cells). In a full-thickness wound model, the hydrogel dressing achieved 95% wound closure in 14 days compared to 89% for the Tegaderm film control.
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ACS Applied Polymer Materials
·
2026
·
IF 5.2
Junyao Wang,Guozheng Zhang,Huan Liu,Dingyi Ren,Jianlang Shu,Tinggang Zhang,Zhida Li,Fuxin Yu,Yu Liu,Yu Yan
A type of polymer material with a three-dimensional network structure shows great potential for motion detection and health monitoring applications due to the favorable biosafety profile of its raw materials and tunable physicochemical properties. Traditional single-network hydrogels suffer from critical mechanical limitations─fracture toughness <10 J m–2 and tensile strength <0.1 MPa─due to sparse, inhomogeneous cross-linked networks. We addressed this issue by designing a dual-network MIg hydrogel (MIg) via UV-initiated copolymerization, where sodium carboxymethyl cellulose (CMC) was first oxidized by sodium periodate to introduce aldehyde groups for dynamic covalent cross-linking. The oxidized CMC was then mixed with acrylic acid (AC), choline chloride (ChCl), acrylamide (AM), N,N′-methylenebis(acrylamide) (MBAA), glycerol (Gly), and the photoinitiator phenylbis(2,4,6-trimethylbenzoyl) phosphine oxide (TPO), and the homogeneous precursor solution was rapidly cured under UV light (<60 s, 405 nm) to yield an interpenetrating dual-network architecture comprising a rigid poly(acrylamide-co-acrylic acid) covalent network and a reversible CMC-based dynamic network that enables efficient stress distribution and energy dissipation, endowing the MIg with a tensile strength of 0.90 MPa (9-fold higher than conventional hydrogels), fracture strain of 550%, fatigue resistance over 1000 cycles (λ = 1.25), 88% self-healing efficiency within 12 h at 25 °C (recovery progressing from 20% at 0.5 h to 70% at 9 h), high ionic conductivity (105 mS cm–1), low swelling ratio (≈20%), and robust thermal stability (75 h at 80 °C). As a resistive sensor, the MIg demonstrates rapid response/recovery times (90/45 ms), broad detection range (0–350% strain), and segmented sensitivity with gauge factors (GF) of 0.94, 2.06, and 4.21 at strain intervals of 1–2.5, 2.5–4.4, and 4.4–10, respectively, for precise signal discrimination across diverse deformation regimes. We applied this in 3 × 3 pixel array circuits for spatial pressure mapping and wearable devices for motion tracking and ECG monitoring, with stable signal output over 450 s of continuous operation, demonstrating a scalable material platform for flexible electronics, motion monitoring, and human-machine interfaces.
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ACS Applied Materials & Interfaces
·
2026
·Vol. 18
·期 31
·43048-43064
·
IF 7.8
Guo Yuanyi,Jin Yujie,Chen Weixiang,Huang Jianguo
Ni 3 S 4 -based materials are promising candidates for anodes of lithium-ion batteries (LIBs) due to their high theoretical capacities and excellent redox reversibilities. However, the drawbacks, including low intrinsic conductivity, significant volumetric expansion, and polysulfide shuttle effects, hinder their electrochemical performance and limit practical applications. To address these challenges, herein, a ternary fibrous TiO 2 -Ni 3 S 4 -carbon composite using natural cellulose substance as both the carbon source and structural scaffold was synthesized via hydrothermal and sol–gel approaches. The composite exhibits a nanoarchitecture structure, which retains the three-dimensional network structure of the initial cellulose substance; it is composed of uniformly distributed Ni 3 S 4 nanoparticles wrapping around the carbon fibers with the TiO 2 nanoplates coating on the outermost surface. Due to the spatially organized TiO 2 /Ni 3 S 4 /carbon ternary configuration, the composite exhibits excellent electrochemical performance when employed as an anodic material for LIBs. Specifically, the TiO 2 coating layer acts as a protective layer, suppressing the shuttle effect of polysulfides and stabilizing the solid electrolyte interface (SEI). The synergistic effect of the carbon fiber and the TiO 2 coating layer buffers the volume expansion, prevents the pulverization of the active material, and enhances its structural integrity and stability. Additionally, the Ni 3 S 4 -TiO 2 heterojunction accelerates charge transfer and increases the pseudocapacitive contributions, thereby improving lithium storage performance. Specifically, the TiO 2 -Ni 3 S 4 -carbon anode delivers a reversible discharge capacity of 600.2 mAh g –1 at 1.0 A g –1 after 3000 cycles (70.3% retention). In the full-cell tests, the anode achieves a reversible capacity of 107.4 mAh g –1 after 3000 cycles at 1.0 A g –1 with an energy density of 224.3 Wh kg –1 , demonstrating the application potential of the composite as the anodic material of LIBs.
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ACS Applied Polymer Materials
·
2026
·
IF 5.2
Xu Xiaowen,Wang Jiesheng,Zheng Haoyuan
Tuna is valued for its nutritional
benefits, but significant
waste
occurs due to inaccurate shelf life estimations. Herein, we developed
a multifunctional, mechanically robust, and highly sensitive visual-sensing
hydrogel tailored for real-time tuna freshness monitoring. The system
is constructed from a sodium alginate/polyacrylamide matrix reinforced
with tannic acid-coated cellulose nanocrystals. This structural design
endows the hydrogel with exceptional stretchability, toughness, antifatigue
properties, and tear resistance, successfully overcoming the mechanical
fragility of traditional hydrogels. Furthermore, the catechol groups
from tannic acid provide reliable multisubstrate adhesiveness, alongside
intrinsic antioxidant and highly effective antimicrobial activities
against Candida albicans and Staphylococcus aureus , ensuring the hygienic stability
of the sensor in packaging environments. For visual freshness detection,
a pH/NH 3 dual-responsive thymol blue was embedded into
the matrix. The hydrogel indicator successfully tracked yellowfin
tuna spoilage at both 4 and 25 ° C, delivering distinct visual
color changes (Δ E > 50). These color transitions
exhibited strong linear correlations ( R 2 > 0.97) with key freshness indicators, including Δ E vs pH, Δ E vs TVB-N, and TVB-N vs
pH. This work presents a highly durable and accurate intelligent packaging
material for visual freshness monitoring, offering a promising strategy
to improve food safety and reduce waste in the seafood industry.
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危险品化学品经营许可证（带存储）