CONSTRUCTION AND BUILDING MATERIALS
·
2026
·
IF 8.9
Yong Li,Zhuoyu Zhang,Shihao Zhao,Mengyao Wang,Maosong Chen,Qiang He,Haojie Song,Jun Wu
Solar-driven materials are regarded as one of the key approaches to effectively utilize clean energy. However, the existing materials are limited by the intrinsic optical absorption characteristics, which restricts the improvement of photothermal conversion efficiency. Herein, multi-scale polydopamine-polypyrrole (PDA-PPy) nanofiber that was favorable for light trapping, was grown on the surface of waste toner via spray-assisted self-assembly technique. The synergistic effect between the intrinsic material properties of waste toner and the multi-scale PDA-PPy nanofiber structure not only significantly improved the photothermal conversion efficiency but also increased the ice nucleation energy barrier and extended the ice-formation time. The coated glass slide attained a surface temperature of 92.4 °C under 1.0 sun. The coating exhibited a high contact angle (CA) of 165° and an ultra-low sliding angle (SA) of only 2.5°. Furthermore, the freezing time of water droplets on the coated glass slide was delayed by 16.7 times at −5 °C and completely melted within 81 s under 1.0 sun. In addition, the coating still exhibited excellent superhydrophobicity after undergoing tests for mechanical and chemical stability. More importantly, the anti-icing performance of the horizontal cable showed that at −10 °C, no icing was observed on the coated cable within 80 min, while extensive icicles had formed on the surface of the uncoated cable. This multifunctional photothermal superhydrophobic coating had excellent environmental adaptability and long service life, and could be effectively applied to anti-icing protection of outdoor infrastructure.
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高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2026
·
IF 8.2
Baoyue Zhang,Ruixue Wang,Fan Wan,Xiaoyun Liu,Hongyao Xu,Shanyi Guang
Developing lightweight and multifunctional electromagnetic absorption (EMA) materials remains important for advanced electromagnetic protection applications. Herein, we report a multifunctional composite aerogel constructed through a host–guest engineering strategy. The polyimide (PI) framework serves as the host matrix, while magnetic hollow Fe 3 O 4 @CoNi@PDA microspheres and conductive carbon nanotubes (CNT) act as functional guests. Molecular dynamics simulations indicate hydrogen-bond-assisted interactions between acidified CNT and PAA chains during precursor assembly. These interactions help support the formation of a stable porous framework. The optimized PCH-3 aerogel achieves a minimum reflection loss (RL min ) of − 33.1 dB at 2.8 mm and a wide effective absorption bandwidth (EAB) of 7.9 GHz at 3.6 mm. Beyond EMA performance, PCH-3 shows low density, thermal insulation capability, and mechanical resilience. Its density and thermal conductivity are 24.0 mg cm⁻ 3 and 0.043W m −1 K −1 , respectively. It also retains 97% of its stress after 50 compression cycles. Furthermore, radar cross-section (RCS) simulations indicate a maximum reduction of 30.2 dB 2 under the given simulated conditions. This study provides a feasible strategy for designing lightweight multifunctional aerogels for electromagnetic protection and thermal management.
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DOI
高影响因子
FUEL
·
2025
·
IF 7.5
Jui-Yeh Rau,Yulin Xie,Zhujian Mao,Youyi Wang,Jiayi Hao,Shihan Cai,Jian Huang
The development of high-performance hydrogen separation membranes is a crucial step in the advancement of sustainable energy technologies and the achievement of carbon neutrality. In this study, zeolitic imidazolate framework-8 (ZIF-8) membranes with an ultra-high selectivity for hydrogen over carbon dioxide were successfully synthesised on polydopamine/3-aminopropyltriethoxysilane (PDA/APTES) modified Al 2 O 3 supports. The interfacial layer exhibited excellent adhesion and a high density of functional groups, which served as nucleation sites for the growth of ZIF-8 crystals. The resulting membranes exhibited a dense and defect-free structure, achieved through an optimised 12 h in-situ growth process. The membranes exhibited excellent gas separation performance, with hydrogen(H 2 ) permeance reaching 14 × 10 −7 mol·Pa −1 ·m −2 ·s −1 and ideal selectivities of 20.3, 22.1, and 26.8 for H 2 /CO 2 , H 2 /N 2, and H 2 /CH 4 , respectively, at 25 °C and 0.2 MPa. In comparison with the ZIF-8 membrane that was synthesised on a pure PDA modified layer, the H 2 permeance increased by 14.8 %. Notably, the selectivity for H 2 /CO 2 increased by almost threefold. Moreover, long-term stability tests demonstrated the durability and robustness of the ZIF-8 membranes under operational conditions.
研究领域:
材料科学
·
能源技术
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DOI
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2018
·
IF 4.514
Wei Cai,Wenwen Guo,Ying Pan,Junling Wang,Xiaowei Mu,Xiaming Feng,Bihe Yuan,Bibo Wang,Yuan Hu
The potential prospect of hexagonal boron nitride (h-BN) in the fields of polymer composites is severely limited by undesirable exfoliation efficiency and chemical inertness. Herein, bio-based dopamine was employed toward exfoliating bulk h-BN with hydrogen bond action and imparting a highly-active surface. With assistance of polypodamine, SnO 2 nanoparticles were in-situ synthesized and strengthened the interfacial interaction between h-BN and epoxy (EP) matrix. The integrated function of metal oxide/h-BN toward flame retardant and smoke suppression of polymer materials was firstly studied and obtained, in term of reduced peak heat release rate (decreased by 41.1%), lower total heat release (decreased by 30.1%), and suppressed total smoke production (decreased by 21.6%). In addition, the mechanism for enhancements on flame retardant and smoke suppression of EP composites was systematically investigated. Such a design route simultaneously achieves the exfoliation and functionalization of h-BN, thus offering an active platform for further functionalization modification.
研究领域:
材料科学
·
高分子化学
·
纳米技术
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DOI
高影响因子
DIAMOND AND RELATED MATERIALS
·
2025
·
IF 5.1
Wenxin Zhang,Xiaojing Zhao,Weimin Ma
Two-dimensional transition metal carbides (MXenes) are limited in their practical application in lithium-ion batteries due to their inherent interlayer stacking and susceptibility to oxidation. In order to address this challenge, a three-dimensional porous CZIF-67/Ti 2 VC 2 T x @polydopamine (PDA) composite material was successfully constructed through electrostatic self-assembly and in-situ carbonisation strategies in this study. This composite material, when utilised as the anode in lithium-ion batteries, exhibits remarkable electrochemical performance. In the half-cell, the initial reversible capacity is 857.6 mAh g −1 (0.1 A g −1 ). Following 900 cycles at an elevated current density of 1 A g −1 , the capacity remains at 402.6 mAh g −1 , with a capacity retention ratio of 88.25 %. It is particularly noteworthy that this electrode exhibits remarkable adaptability across a broad temperature range. Following 100 cycles at −25 °C, the capacity was determined to be 385.2 mAh g −1 (0.1 A g −1 ), and at 60 °C, the capacity was as high as 1486.3 mAh g −1 (0.1 A g −1 ). The reversible capacity of the assembled CZIF-67/Ti 2 VC 2 T x @PDA//LiFePO 4 full cell was stabilized at 467.7 mAh g −1 after 100 cycles at 0.1C. This significant enhancement in performance can be attributed to its unique three-dimensional network structure, which has been demonstrated to accelerate ion and electron transport, whilst also providing effective structural protection and volume buffering. This research proposes a novel approach for the design of high-performance, wide-temperature-range bimetallic MXene-based composite electrode materials.
研究领域:
材料科学
·
储能
·
纳米技术
·
电化学
·
电池技术
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DOI
高影响因子
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2023
·Vol. 129
·期 11
·758
·
IF 2.7
Hao Lifeng,Lin Liyu,Jiang Zewen,Zhou Yang,Fang Yujie
Inspired by the fact that nanostructured expandable graphite (denoted as EG), when functionalized with silicon (Si) and boron (B) elements, can significantly enhance thermal insulation performance and improve the strength of char residue layers, the study controllably synthesizes EG supported with boron acid (H 3 BO 3 ) or polyhedral oligomeric silsesquioxane (POSS), using polydopamine (PDA) as a bridging agent. The resulting composites possess specific particle sizes of 80–90 nm and 100–120 nm for H 3 BO 3 -PDA-EG and POSS-PDA-EG, respectively. By formulating ablative-resistant coatings incorporating these composites, significant improvements are achieved in the mechanical properties of the resulting ceramic layers formed during ablation compared to control formulation. The compressive strength of the char residue layer is 0.13 MPa for EG alone, 8.85 MPa for H 3 BO 3 -PDA-EG, and 12.86 MPa for POSS-PDA-EG. Additionally, it is observed that the back surface of the coating with POSS-PDA-EG is approximately 180 ℃, while the back surface of the coating with H 3 BO 3 -PDA-EG is approximately 300 ℃ in a thermal test by a FD-04D/E Wind Tunnel, and compared to the coating with H 3 BO 3 -PDA-EG, the coating with POSS-PDA-EG yields more uniformly expanded and dense residue, which indicated that the coating with POSS-PDA-EG is characterized by better heat insulation and heat-resistant parameters. This is attributed to the improved silicon-boron coordination effect facilitated by the presence of POSS-PDA-EG and boron oxide, promoting ceramization. The resulting graphitized carbon layer, formed through fusion with porous expanded graphite at high temperatures, effectively resists high heat flow erosion over an extended duration. This work introduces an effective approach for enhancing ablation resistance by synergistically catalyzing boric acid or POSS-modified EG with a PDA bridge. The initial decomposition temperature was increased from 189 to 223 ℃, the maximum decomposition temperature was increased from 282 to 287℃, and the residual weight was increased from 51.6 to 63.6%. This can be concluded that the mixture of epoxy resin with either H 3 BO 3 -PDA-EG or POSS-PDA-EG demonstrates outstanding thermal resistance. The utilization of these novel composites and the insights gained from their performance contribute to advancements in the field of ablation-resistant coatings.
研究领域:
材料科学
·
聚合物涂层
·
热防护系统
·
烧蚀材料
·
纳米复合材料
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DOI
高影响因子
Nanomaterials
·
2026
·Vol. 16
·期 2
·121
·
IF 4.3
Xianlian Mu,Tao Jin,Pengfei Xie,Rongcao Yu,Bin Li,Xin Yuan
Corrosion in harsh environments causes global economic losses exceeding 3 trillion US dollars annually. Traditional silicone epoxy (SE) coatings are prone to failure due to insufficient physical barrier properties and lack of active protection. In this study, cerium dioxide (CeO2) was in situ grown on the surface of hexagonal boron nitride (h-BN) mediated by polydopamine (PDA) to prepare BN-PDA-CeO2ternary nanocomposites, which were then incorporated into SE coatings to construct a multi-scale synergistic corrosion protection system. Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and transmission electron microscopy (TEM) confirmed the successful preparation of the composites, where PDA inhibited the agglomeration of h-BN and CeO2was uniformly loaded. Electrochemical tests showed that the corrosion inhibition efficiency of the extract of this composite for 2024 aluminum alloy reached 99.96%. After immersing the composite coating in 3.5 wt% NaCl solution for 120 days, the coating resistance (Rc) and charge transfer resistance (Rct) reached 8.5 × 109Ω·cm2and 1.2 × 1010Ω·cm2, respectively, which were much higher than those of pure SE coatings and coatings filled with single/binary fillers. Density functional theory (DFT) calculations revealed the synergistic mechanisms: PDA enhanced interfacial dispersion (adsorption energy of −0.58 eV), CeO2captured Cl−(adsorption energy of −4.22 eV), and Ce3+formed a passive film. This study provides key technical and theoretical support for the design of long-term corrosion protection coatings in harsh environments such as marine and petrochemical industries.
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DOI
PubMed
高影响因子
Journal of Macromolecular Science Part A-Pure and Applied Chemistry
·
2017
·
IF 0.963
Ru Meng,Yutong Chen,Xiufang Zhang,Xiaoli Dong,Hongchao Ma,Guowen Wang
The polydopamine (PDA) coating α-S hydrophilic composites (SD) were fabricated by a self-assembly process for enhanced α-S photocatalytic performance under visible light. The XRD patterns analysis indicated that we had successfully prepared the orthorhombic α-S. The SEM, FT-IR and TGA showed that PDA had been successfully coated on α-S. The photocatalytic ability was illustrated by the DRS and FL. Moreover, the measurement of the water contact angle of SD and the corresponding original α-S (SA) showed the hydrophilicity of α-S had been improved. The photocatalytic ability of SD and SA was evaluated by photocatalytic decomposition of Methylene blue (MB) solution. The MB elimination rate with SD in the photocatalytic process was 2.46 times as great as that with SA under visible light. The enhanced photocatalytic ability could be attributed to the improved hydrophilicty of α-S.
研究领域:
材料科学
·
光催化
·
环境化学
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DOI
高影响因子
DESALINATION
·
2026
·
IF 9.9
Siyoung Byun,Young Jin Seo,Chi Hoon Park,Sanghyun Jeong
Membrane distillation (MD) has been noted for concentrating and separating both short- and long-chain PFASs to highly concentrated levels, facilitating the effective destruction of PFASs. However, MD has critical limitations, including membrane wetting and fouling, which can be disrupted over long-term operation with high-quality permeate water. This study developed asymmetric Janus polydopamine (PDA)/polyvinylidene fluoride (PVDF) membranes with a hydrophilic-hydrophobic dual-layer structure to effectively separate PFASs without any wetting and fouling from highly concentrated feed water. A direct current MD experiment was conducted using 0.1 M NaCl containing 20 mg L −1 short-chain (perfluoropentanoic acid, PFPeA) and long-chain PFASs (perfluorooctanoic acid, PFOA). For short-chain PFPeA, the Janus membranes achieved outstanding salt rejection (~99.50%) and a low PFAS concentration (~6 μg L −1 ) in the permeate water, with stable and enhanced flux for long-term periods. Otherwise, for long-chain PFOA, despite highly concentrated PFAS levels, they demonstrated significant membrane anti-wetting and anti-fouling with high salt rejection (~99.40%), low PFAS concentration (approximately 3.5 μg L -1) , as well as stable flux. In addition, they exhibited high concentrations of PFASs in the feed solution (more than 1.60–1.89 times the initial feed water concentration). However, PFAS substances were found to penetrate PVDF membranes and cause fouling, as confirmed by molecular dynamics simulations, making it difficult to use for MD operation to remove and concentrate PFAS compounds. Consequently, the Janus membrane is expected to be applied in practical applications, especially for effectively concentrating and separating PFASs prior to the destruction of these compounds.
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DOI
高影响因子
Materials Today Chemistry
·
2025
·
IF 6.7
Henigul osman,Xiaohui Tang,Dong Zhang,Bo Liu,Jie Gao,Xin Chen,Tao Jiang,Haobo Pan,Yingbo Wang
To address the dual challenges of controlled drug delivery and microenvironment modulation in repairing osteoporotic bone defects, we developed a multifunctional poly(l-lactic acid) (PLLA)-based composite fibrous scaffold (PLLA/PDA/ZIF-8@Qu). The scaffold was fabricated via electrospinning, followed by in situ polydopamine (PDA) polymerization to robustly immobilize ZIF-8 nanocarriers loaded with quercetin (Qu) on the fiber surface. The mussel-inspired PDA coating served as an adhesive interlayer between ZIF-8 and PLLA. Additionally, it provided near-infrared (NIR) responsiveness and surface functionalization capability. Under osteoporotic acidic conditions (pH 5.0–6.0), the scaffold exhibited pH-triggered release behavior, ZIF-8 degradation accelerated Zn 2+ release, and cumulative Qu release reached 90 %. Zn 2+ contributed to antibacterial activity, while the PDA coating enabled NIR-driven photothermal/photodynamic synergy, achieving 100 % inhibition against both E. coliand S. aureus. Quercetin (Qu) exerted antioxidant effects via the Nrf2/ARE pathway and promoted macrophage polarization toward the M2 phenotype, thereby ameliorating the local inflammatory microenvironment. In vitro , the scaffold enhanced osteogenic differentiation of bone marrow mesenchymal stem cells, as indicated by a 2.3-fold increase in alkaline phosphatase activity, a 1.85-fold increase in mineralized nodule formation, and upregulated Runx2 expression. In a rat femoral defect model, the scaffold group at 8 weeks post-implantation showed increased bone mineral density (BMD) from 0.454 to 0.935 g/cm 3 and trabecular number (Tb.N) from 0.694 to 0.923 mm −1 , with the defect largely filled by newly formed bone. Collectively, these results demonstrate that the PDA-enabled, ZIF-8/Qu-integrated PLLA scaffold couples pH-responsive release with antibacterial, anti-inflammatory, and pro-osteogenic functions, supporting its potential as a bone repair material responsive to pathological microenvironments.
研究领域:
生物医学工程
·
组织工程
·
药物递送系统
·
骨再生医学
·
纳米材料
·
生物材料
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Huaqiang Zhu,Shuo Wang,Zhanjun Guo,Hongdi Fu,Xinyi Han,Haiyang Wang,Yonghao Zhao,Haiyue Yu,Yong Yang,Siyuan Tang,Yiheng Li,Yanrui Hu,Tinglu Song,Meishuai Zou
Al-Li alloys are promising fuels for composite solid propellants due to their high energy density and favorable combustion characteristics. However, their application is limited by poor storage stability and inadequate interfacial adhesion. This study presents a novel dual-layer synergistic coating strategy using fluorinated alkylsilane (FAS) and polydopamine (PDA) to improve the interfacial stability of Al-Li alloys and the mechanical performance of Al-Li alloy-based propellants. The Sequential chemical deposition of FAS hydrophobic layer and PDA adhesive layer onto Al-5Li alloy particles was successfully accomplished and uniformly covered. The interfacial adhesion and wettability are increased by introducing catechol groups, which addresses the problems caused by FAS coating. Thermal analysis revealed negligible weight loss (≤0.191 %) from organic coating decomposition, indicating minimal impact on energy density. Mechanical testing showed that the fracture stress of propellants containing Al-5Li@FP particles was significantly improved to 1.593 MPa, and even surpassed those with pure aluminum, which was 1.263 MPa. Combustion experiments further showed a significant enhancement in the burning intensity of the modified alloy powders. This study achieves synergistic improvement of stability and interfacial adhesion in Al-Li alloys via a rationally designed PDA and FAS bilayer interface. Thereby offering an innovative pathway for developing high-performance solid propellants.
研究领域:
材料科学
·
航空航天工程
·
含能材料
·
表面化学
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产品关联
DOI
高影响因子
Frontiers in Chemistry
·
2020
·
IF 3.693
Wang Xiaodong,Hu Weizhao,Hu Yuan
In this study, h-BN@PDA@TiO2 hybrid nanoparticles were prepared and used as functional fillers to prepare PVA nanocomposites, and the effects of hybrid particles on PVA thermal conductivity and flame retardant properties were studied. The results showed that hybrid particles could significantly improve the thermal conductivity and flame retardant performance of PVA composites, and effectively inhibit the release of toxic gases such as combustible pyrolysis products and CO, which enhanced the fire safety of PVA composites. When the addition amount of hybrid particles is 5 wt%, the thermal conductivity of PVA composites is 239.1% higher than that of the pure PVA and the corresponding temperature of PVA composites with a mass loss of 5 wt% was 16.2°C higher than that of the pure PVA. This is due to the barrier effect of h-BN and the protective effect of dense carbon layer catalyzed by TiO2.
研究领域:
材料科学
·
化学工程
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DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）