JOURNAL OF MATERIALS SCIENCE
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2026
·
IF 3.9
Duan Jianguo,Yu Xinyang,Lei Kun,Wang Yaxiong,Ma Qing,Yu Qihui,Li Xinsheng
Organic phase change materials (PCMs) are considered one of the critical thermal storage materials in medium and low-temperature solar thermal conversion and storage technologies. However, PCMs face challenges such as low photothermal conversion efficiency and liquid leakage, which significantly hinder their practical applications. This study developed a novel paraffin wax/3D graphene-Cu nanowire (PW/GCu) porous composite PCM. Copper nanowires (CuNWs) were embedded as thermal bridge within the GCu aerogel framework. The addition of copper nanowires markedly enhances the photothermal conversion performance and thermal conductivity of the composite material. Specifically, the thermal conductivity of PW/GCu 1.5 reached 0.85 W·m⁻ 1 ·K⁻ 1 , increasing by 347.3% compared to pure PW. The latent heat value reached 165.8 J·g⁻ 1 , approximately 90% of that of pure PW. After 100 thermal cycles, the enthalpy value decreased by only 1.17%. The leakage rate remained below 7%. Under a solar irradiance of 120 mW·cm⁻ 2 , the photothermal conversion efficiency of PW/GCu 1.5 reached 89.5%. Even after 200 photothermal cycles, it maintained excellent photothermal conversion efficiency and rapid thermal response behavior. This combined strategy offers a viable approach for fabricating structurally stable, highly absorbent, efficient heat conversion and storage materials, demonstrating significant application potential in solar thermal utilization.
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JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 2.8
Changchuan Wang,Jinchuang Zhang,Bingpei Li,Jiao Jia,Yingliang Liu
Poly(methyl methacrylate) (PMMA) exhibits a high coefficient of friction, limiting its use in tribological applications. To address this, graphene oxide (GO), synthesized via the Hummers method, is functionalized with silane KH570 to enhance its compatibility and subsequently incorporated into PMMA through in situ bulk polymerization, resulting in PMMA/KH570-GO composites. The structural, morphological, and functional properties of the composites are characterized using x-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, Raman spectroscopy, scanning electron microscopy (SEM), and atomic force microscopy (AFM). Mechanical and tribological behaviors are assessed through tensile and pin-on-disc tests. The results indicate that the addition of 0.06 wt% KH570-GO enhances tensile strength by 13.4%, achieving a value of 76.25 MPa, and significantly reduces the coefficient of friction from 0.7 to 0.25, compared to pure PMMA. Beyond this threshold, a higher KH570-GO loading of 0.20 wt% diminished the tensile strength to 59.23 MPa. The optimal content, in contrast, improved mechanical properties and promoted the development of a lubricating graphitic film during friction, which collectively contributed to a marked enhancement in tribological performance.
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.9
Cong Liu,Tong Lu,Bo Cheng,Rong Chen,Yong Huang,Hao Yang
This study presents the development of a durable, superhydrophobic composite cotton fabric with enhanced photothermal antibacterial properties. Graphene oxide (GO) was first deposited onto cotton fabric to create an anchoring layer, followed by the in-situ growth of ZIF-67 nanoparticles. The fabric was further modified with polydimethylsiloxane (PDMS) to impart a low-surface-energy coating, enhancing both hydrophobicity and stability. GO not only significantly enhanced photothermal conversion efficiency, but also improved the dispersivity and adhesion of the nanoparticles. The resultant GO/ZIF-67/PDMS composite fabric exhibited excellent photothermal performance, reaching 103.2°C within one minute under near-infrared (NIR) irradiation (0.6 W/cm 2 ). The antibacterial activity of the composite was evaluated against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli . Under NIR irradiation for 5 min, the survival rates of E. coli and S. aureus were reduced to 0.01% and 9.35%, respectively. Moreover, the fabric maintained both photothermal and hydrophobic properties even after 10 washing cycles in sodium dodecyl sulfate (SDS) solution or 100 abrasion cycles, demonstrating outstanding durability. These results highlight the potential of GO/ZIF-67/PDMS composite fabric in antibacterial textile with self-cleaning property, particularly in the photothermal antibacterial application.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2026
·
IF 8.3
Wenyao Xue,Ziyue Wang,Hongliang Fu,Guanjie Xue,Jing Zhao,Yue Lian,Zhifeng Wang,Yongfeng Hu,Huaihao Zhang
Four-electron transfer process of oxygen evolution reaction (OER) has become a bottleneck restricting water electrolysis, due to its inherently high kinetic energy barrier. Therefore, the exploration for high-efficiency and long-term stable non-noble metal OER catalysts is crucial for sustainable energy conversion. This work designs a molten salt-mediated ball milling-pyrolysis stepwise treatment to synthesize spongy V 2 O 5 composite Fe-intercalated graphitic nitrogen (N–V 2 O 5 @FeC). Specifically, Fe-intercalated graphite is achieved using the FeCl 3 /KCl molten salt system, a highly conductive FeC substrate being constructed accordingly. Then, NH 3 generated from melamine pyrolysis enables spongy porous structure construction and N-doping. N–V 2 O 5 @FeC catalyst possesss the following advantages: First, spongy porous structure greatly increases exposure of active sites, while Fe intercalation-induced graphite edge defects and Fe–O–V bonds jointly enhance active site density of V 2 O 5 composite, thereby boosting catalyst activity. Second, N-doped carbon network improves electron transport performance, enabling catalyst's charge transfer resistance decline to 19.9 Ω. Moreover, dual stabilization mechanisms of Fe–O–V stable structure and chemical anchoring of V–O–C bonds endow the material with good structural stability under alkaline conditions. In detail, N–V 2 O 5 @FeC reaches 10 mA cm −2 current density at only 299 mV overpotential in alkaline solution, with low Tafel slope (53.0 mV dec −1 ) and 50-h stability.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Hongyu Wang,Ran Song,Guiru Chen,Fei Wang,Luying Wang,Jiandu Lei,Jing Liu
Conductive hydrogels derived from natural biomass are considered ideal candidates for flexible electronics and biomedical applications. However, developing conductive hydrogels that simultaneously achieve high mechanical strength, strong adhesion, good conductivity, and excellent biocompatibility remains a significant challenge. Herein, a multifunctional dual-network hydrogel (PGO/ CO -CA) composed of a carboxymethyl cellulose-based dynamic crosslinking network and a polyacrylamide network is proposed. Inspired by mussel adhesive proteins, polydopamine-modified conductive graphene nanosheets were incorporated to endow catechol-like adhesion and enhance the conductivity (0.46 S/m) and sensitivity (gauge factor, GF = 2.26). Additionally, branched polyethyleneimine (PEI) was introduced to strengthen the hydrogel network through electrostatic interactions and to enhance durability across a wider sensing range. By adjusting the Schiff-base crosslinking ratio and the PEI content, the hydrogel exhibited tunable modulus (stress: 113.5 kPa; strain: 1672%), which matched skin tissue, making it suitable for real-time motion signal monitoring and Morse code transmission. The hydrogel exhibited strong tissue adhesion (13.7 kPa), enabling conformal attachment to the skin for accurate physiological signal detection (electrocardiogram and electromyographic) and machine-learning-based gesture recognition (accuracy: 98%). Furthermore, it formed a robust physical barrier on wound surfaces, achieving rapid and effective hemostasis. In summary, the multifunctional biomass hydrogel developed in this work holds great promise for applications in flexible sensing and emergency hemostasis.
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ELECTROCHIMICA ACTA
·
2026
·
IF 5.6
Xiuhao Jiao,Yuqing Xu,Yiwen Ren,Shaolong Li,Zepeng Lv,Yong Fan,Bin Yang,Jilin He,Jianxun Song
Electrode stability is a critical determinant of the long-term operational efficiency and service life of electrochemical systems. Molten salt electrolysis technology utilizing consumable anodes offers a promising green and low-carbon pathway for the preparation of refractory metals and alloys, owing to its process simplicity, environmental friendliness, and high product purity. However, during electrolysis, the coupled thermo-mechanical fields can induce localized stress concentration in the anode, posing challenges to its structural integrity. This paper takes the electrolytic extraction of metallic zirconium using ZrC x O y anode as an example to study the stability of consumable anodes. Through a combination of experimental and simulation approaches, we systematically analyze the influence of key parameters-including anode geometry, immersion depth, and electrolysis temperature-on stability. The findings aim to provide theoretical guidance for optimizing electrolysis processes and designing robust anode structures.
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ELECTROCHIMICA ACTA
·
2026
·
IF 5.8
Yuting Zhang,Jia He,Shanshan Zhang,Qi Lin,Jieping Cao,Zhenping Liu,Huikai Shao,Jinxian Huang
A thiolated graphene/AuNPs nanointerface was constructed to enhance electron transfer. • An electropolymerized EMIP layer enabled selective epitope-based recognition of AFP. • A sensitive epitope-imprinted electrochemical biosensor was developed for AFP analysis. • The sensor exhibited a wide linear range (0.001–100.0 ng mL −1 ) and a low LOD of 0.069 pg mL −1 . • The biosensor enabled reliable AFP determination in spiked human plasma samples. Alpha-fetoprotein (AFP) is a clinically important serum biomarker for the early diagnosis of hepatocellular carcinoma. However, conventional AFP detection methods often suffer from limited sensitivity, selectivity and operational complexity. In this work, an electrochemical biosensor based on an epitope molecularly imprinted polymer (EMIP) was developed for the sensitive and selective determination of AFP. The sensing interface was constructed by electropolymerization of o -phenylenediamine ( o -PD) on a gold electrode sequentially modified with thiolated graphene (G–SH) and gold nanoparticles (AuNPs), using the AFP C-terminal dodecapeptide (KLISKTRAALGV) as the epitope template. The excellent analytical performance of the biosensor can be attributed to the synergistic integration of the EMIP recognition layer, G–SH, and AuNPs, which provide highly selective molecular recognition, an enlarged electroactive surface area and accelerated interfacial electron transfer. Under the optimized conditions, the proposed biosensor exhibited a wide linear range of 0.001–100.0 ng mL −1 , and a low detection limit of 0.069 pg mL −1 , together with excellent selectivity against NMP22, bovine serum albumin (BSA), human serum albumin (HSA), and neuron-specific enolase (NSE), good reproducibility, and satisfactory storage stability. Satisfactory recoveries obtained in spiked human plasma samples demonstrated its potential applicability for AFP determination in complex biological matrices. This work provides a sensitive and robust platform for AFP determination and highlights the potential of epitope-imprinted electrochemical biosensors for hepatocellular carcinoma screening and clinical biomarker monitoring. An epitope-imprinted electrochemical biosensor integrating an electropolymerized EMIP film with a thiolated graphene/AuNPs nanointerface was developed for AFP detection. The biosensor combines highly selective molecular recognition with enhanced electron transfer, achieving a 0.069 pg mL −1 detection limit and successful analysis of spiked human plasma samples. Download: Download high-res image (303KB) Download: Download full-size image
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CONSTRUCTION AND BUILDING MATERIALS
·
2026
·
IF 8.9
Panpan Wang,Shuangshuang Wang,Songtao Lv,Jinguo Ge,Dejun Mao,Zhang Han
Achieving efficient structural integration in epoxy asphalt remains challenging because the cured epoxy phase is prone to forming heterogeneous domains within the asphalt matrix, limiting the connectivity of the cured epoxy domains and overall performance. Here, we report a graphene oxide (GO)-assisted reactive bridging strategy that enables the molecular-level integration of epoxy resin (ER) and asphalt through a continuous GO-ER/asphalt crosslinked network. GO acts as a multifunctional reactive platform, where its oxygen-containing groups covalently anchor ER chains and provide active sites for subsequent curing with methyl tetrahydrophthalic anhydride (MTHPA). This sequential grafting and curing process transforms the epoxy asphalt system from a loosely dispersed multiphase structure into a chemically connected network with enhanced continuity and compatibility. The resulting GO-ER crosslinked network suppresses free volume, restricts molecular mobility, strengthens interfacial interactions, and improves thermal stability, thereby promoting more effective stress transfer and deformation resistance. Consequently, the GO-ER modified asphalt exhibits improved storage stability, high-temperature rutting resistance, elastic recovery, fatigue resistance, and tensile performance, while maintaining a favorable balance between strength and deformability. This work reveals a molecular-level reactive bridging mechanism and provides a general strategy for designing high-performance epoxy asphalt materials through GO-assisted interfacial regulation.
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Nanomaterials
·
2026
·Vol. 16
·期 16
·1028
·
IF 4.8
Wei Zhou,Haseeb Ur Rehman,Zeming Wang,Oleksandr Ivasenko
Graphite-based nanocomposites with nitrogen-rich covalent two-dimensional materials are promising for energy, catalytic and sensing applications, but their controlled construction remains challenging because both graphite and many covalent 2D materials consist of stacked sheets that are difficult to integrate homogeneously without prior exfoliation, dispersion, mixing, and restacking. Here, we explore a solvent-free strategy that uses melamine-confined graphite as a preorganized precursor for chemical transformations between graphene layers. We demonstrate that intercalated melamine can undergo reaction pathways analogous to those of bulk melamine, enabling not only the previously reported formation of graphite/g-C3N4composites but also the construction of a new graphite/melem composite. The same concept is further extended to multicomponent solid-state reactions by introducing pyromellitic dianhydride, enabling the formation of new graphite/polyimide-linked two-dimensional material composites from either melamine or melem precursors. Comparison of one-pot and stepwise routes shows that precursor preorganization within graphite improves framework preservation, structural continuity, and morphological homogeneity. Overall, this work presents graphite interlayers as confined reaction environments for transforming simple nitrogen-rich molecules into integrated graphite/2D-material composites, providing a scalable platform for exploring solid-state chemistry and hybrid material synthesis between graphene layers.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·Vol. 65
·期 30
·16281-16300
·
IF 3.9
Zhang Xuan,Wang Bo,Hu Zhi,Wang Yue,Feng Ru,Liu Shucheng
Agricultural
waste peanut shells are rich in cis -diol flavonoid
luteolin (LTL). However, conventional separation
materials suffer from insufficient specific sites, binding limitations
only under alkaline environments, and poor anti-interference performance
in complex matrices. Herein, an integrated fabrication strategy combining
in situ polymerization in mesoporous soft confined space and teamed
boronate (TBA)-functional molecular imprinting technology is innovatively
proposed. The hierarchical substrate of GO@MS was covalently assembled
via a thiol–ene click reaction, and a boronate affinity-imprinted
polymer was grown confinedly inside mesoporous channels. The TBA molecular
group as a functional monomer would be used for specific recognition
of LTL under neutral conditions. As a result, the prepared MI-GO@MS@GLYMO-TBA
exhibits high binding capacity (61.78 μmol g –1 ) for LTL at 308 K under physiological pH (7.4), with an equilibrium
time of 360 min. In addition, MI-GO@MS@GLYMO-TBA could be recycled
six times with a slight loss of 8.00% in adsorption. Meanwhile, the
commercially available LTL with 85% purity could be easily enriched
and further extracted with high selectivity (up to 93.67%). Remarkably,
the purified LTL solutions displayed lasting antibacterial performance
against Staphylococcus aureus ( S. aureus ) with an inhibition zone of 12.15 mm. Therefore,
the MI-GO@MS@GLYMO-TBA nanocomposite could be potentially developed
as a feasible and efficient method to achieve the goals of green sustainable
chemistry for precise identification and separation of LTL from complex
samples from agricultural wastes.
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ACS Applied Polymer Materials
·
2026
·Vol. 8
·期 15
·13358-13365
·
IF 5.2
Wang Feifei,He Mantang,Yang Yanan,Hu Hongmei,Han Chaofeng,Li Yaping,Cao Jiliang
With the rapid advancement of electronic devices, electromagnetic
radiation has increasingly caused environmental interference, thereby
stimulating the development of flexible and wearable electromagnetic
interference (EMI) shielding materials. However, it remains challenging
to achieve EMI shielding textiles that simultaneously possess facile
fabrication, high shielding efficiency, and excellent durability.
Herein, a multilevel composite conductive network composed of reduced
graphene oxide (rGO) and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)
(PEDOT:PSS) was successfully constructed on silk fabric (SF) via a
layer-by-layer self-assembly strategy, resulting in a flexible EMI
shielding fabric (SF-PEDOT:PSS-rGO). Specifically, PEDOT:PSS formed
a uniform conductive coating through in situ polymerization, while
rGO further established a continuous conductive network and strengthened
the interfacial interactions among the different components. Benefiting
from the synergistic effect conductive network and interfacil interactions
among PEDOT:PSS, rGO, and SF, the resulting textile exhibited outstanding
EMI shielding performance with a maximum shielding efficiency of approximately
80%. Moreover, the fabric demonstrated excellent durability, retaining
over 80% of its initial shielding efficiency after 30 washing cycles,
while maintaining stable surface resistance and EMI shielding performance
during repeated folding and tape-peeling tests. This study provides
an effective strategy for constructing durable multilevel conductive
networks on textile substrates and offers valuable guidance for the
development of high-performance wearable EMI shielding materials.
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CARBON
·
2026
·
IF 12.7
Yuting Luan,Hao Wu,Xiaoyu Jiang,Xinyue Hou,Li Li,Yongfu Lian
Ru nanoparticles anchored on a heteroatom-doped carbon matrix enriched in pentagonal defects are prepared. • Synergy of pentagonal defects and heteroatoms tunes Ru electronic structure for HzOR and HER. • Ru on S-doped carbon enriched in pentagonal defects delivers superior HER and HzOR activity, surpassing Pt/C. • HzOR-assisted HER system needs only 0.485 V to reach 1 A cm −2 in a flow electrolyzer. Replacing the anodic oxygen evolution reaction with the hydrazine oxidation reaction (HzOR) enables energy-saving hydrogen production but demands efficient bifunctional electrocatalysts. Herein, an electrocatalyst based on ruthenium nanoparticles (Ru NPs) anchored on a uniquely engineered carbon matrix that integrates pentagonal defects and non-metal heteroatoms (Ru/PDXC, X = S, N or P) is designed. Through the synergistic coupling of pentagonal defects and non-metal heteroatoms, the electronic structure of Ru NPs is tailored, thereby enabling modulation of the adsorption energetics of key intermediates for both HzOR and hydrogen evolution reaction (HER). The synthesized Ru/PDSC catalyst delivers outstanding bifunctional activity, requiring a working potential of −70 mV for HzOR and an overpotential of 17 mV for HER to reach a current density of 10 mA cm −2 , outperforming commercial Pt/C. In a two-electrode HzOR-assisted HER system, a low cell voltage of 28 mV is sufficient to achieve a current density of 10 mA cm −2 . Moreover, the flow electrolyzer yields an industrially relevant current density of 1 A cm −2 , requiring a cell voltage of just 0.485 V. This study contributes a fundamental insight for the design and synthesis of advanced bifunctional Ru-based electrocatalysts by engineering the pentagonal defects and non-metal heteroatoms of a carbon matrix. Download: Download high-res image (458KB) Download: Download full-size image
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危险品化学品经营许可证（带存储）