Small Methods
·
2026
·
IF 9.1
Zhengyu Wei,Lingzhe Meng,Xue Qin,Faheem Naseem,Wei Wei
Intercalation-based exfoliation offers a cost-effective approach to producing 2D materials. While molecular intercalation surpasses ionic methods in preserving the crystallinity and intrinsic properties of 2D materials, its broader adoption is limited by weak driving forces and slow kinetics. To address these challenges, we propose an interlayer modulation strategy using H 3 PO 4 -amine complexes as mediators. Structural and molecular dynamics analyses demonstrate that these complexes regulate interlayer proton activity through strong hydrogen bonding, thereby optimizing interlayer dynamics to enable in situ PW 12 formation and efficient graphite exfoliation. The PW 12 intercalant shows excellent recyclability via simple alkaline hydrolysis and regeneration, establishing a sustainable route for graphene production. This work overcomes the barrier to molecular intercalation by rationally engineering complex molecular intercalation, achieving universal and high-throughput exfoliation of van der Waals layered materials.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Analytical Methods
·
2026
·
IF 2.6
Ningbo Li,Yongdong Wei,Mengsi Liang,Wenkun Zhang,Jie Qiao
Given that ochratoxin A (OTA) exhibits immunotoxic, teratogenic, and carcinogenic properties, it is essential to monitor its presence in food samples. In the present work, a novel electrochemical aptasensor for OTA detection uses β-cyclodextrin-functionalized graphene (CG) to enhance electron transfer and provide abundant double-stranded DNA (dsDNA) binding sites. The sensor immobilizes OTA aptamers, complementary DNA (cDNA), and ferrocene-labeled dsDNA on a gold nanoparticle-modified electrode. The host–guest interaction between β-cyclodextrin (β-CD) and ferrocene (Fc) stabilizes the sensing layer, while thiolated dsDNA ensures strong attachment to AuNPs. Without OTA, impedance is high and current is low. In the presence of OTA, its high affinity for the aptamer induces conformational changes in dsDNA. Upon applying an oxidative potential, ferrocene is oxidized to Fc+, which, due to reduced hydrophobicity, dissociates from β-CD. This releases dsDNA from the electrode surface, reducing the impedance and enhancing the current response. The sensor demonstrates a robust response across a concentration range of 1 pg mL−1 to 100 ng mL−1, achieving a detection limit of 0.78 pg mL−1. Notably, this method has been successfully applied to detect OTA in wine, yielding high recovery rates of 96.20% to 98.67%. These findings suggest that the MCH/AuNPs/dsDNA/CG/GCE configuration is a promising electrochemical sensor for OTA detection.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Energy Materials
·
2026
·Vol. 6
·期 1
·N
·
IF 11.2
Hanzhong Cui,Junpeng Fan,Jin Zhang
This study presents a novel slit evaporation self-assembly method for fabricating freestanding sulfuric acid-treated reduced graphene oxide/commercial graphene films (S-ATrGO/CG). The unique capillary slit-induced self-assembly process facilitates the alignment and stacking of graphene flakes, resulting in a well-ordered, laminated film. The treatment of graphene oxide (GO) with sulfuric acid facilitates the ring-opening of inert functional groups, converting them into active functional groups. Sulfuric acid-treated graphene oxide (ATGO) can serve as an effective binder for adhering commercial graphene flakes. X-ray photoelectron spectroscopy was used to quantitatively analyze the oxygen-containing functional groups in GO, ATGO, and S-ATrGO/CG. A series of electrochemical tests were conducted to investigate the behavior of the S-ATrGO/CG films, which exhibited well-defined redox peaks, indicating the contribution of unreduced oxygen-containing groups to redox reactions and pseudocapacitance. The S-ATrGO/CG films exhibit superior electrochemical performance, with an ultra-high area-specific capacitance of 1,589.78 mF cm-2 at a scan of 5 mV s-1 and an impressive initial capacitance retention of 99.80% after 20,000 cycles at a current density of 50 mA cm-2. This study highlights the potential of S-ATrGO/CG films as high-performance electrodes for supercapacitors, contributing to the advancement of sustainable energy storage systems.
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2026
·Vol. 16
·期 2
·128
·
IF 4.3
Bo Li,Nanhui Zhang,Yuxing Lei,Mengmeng Zhu,Haitao Yang
Electric-field-sensitive dielectrics play a crucial role in electric field induction sensing and related capacitive conversion, with interfacial polarization and charge accumulation largely determining the signal output. This paper introduces graphene/transition metal dichalcogenide (TMD) (MoSe 2 , MoS 2 , and WS 2 ) heterojunctions as functional fillers to enhance the dielectric response and electric-field-induced voltage output of flexible polydimethylsiloxane (PDMS) composites. Density functional theory (DFT) calculations were used to evaluate the stability of the heterojunctions and interfacial electronic modulation, including binding behavior, charge redistribution, and Fermi level-referenced band structure/total density of states (TDOS) characteristics. The calculations show that the graphene/TMD interface is primarily controlled by van der Waals forces, exhibiting negative binding energy and significant interfacial charge rearrangement. Based on these theoretical results, graphene/TMD heterojunction powders were synthesized and incorporated into polydimethylsiloxane (PDMS). Structural characterization confirmed the presence of face-to-face interfacial contacts and consistent elemental co-localization within the heterojunction filler. Dielectric spectroscopy analysis revealed an overall improvement in the dielectric constant of the composite materials while maintaining a stable loss trend within the studied frequency range. More importantly, calibrated electric field induction tests (based on pure PDMS) showed a significant enhancement in the voltage response of all heterojunction composite materials, with the WS 2 -G/PDMS system exhibiting the best performance, exhibiting an electric-field-induced voltage amplitude 7.607% higher than that of pure PDMS. This work establishes a microscopic-to-macroscopic correlation between interfacial electronic modulation and electric-field-sensitive dielectric properties, providing a feasible interface engineering strategy for high-performance flexible dielectric sensing materials.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2026
·
IF 2.5
Yu Wang,Rong Zhong,Chirstopher Bassanyin,Jiake Li,Hedong Jiang,Xin Liu,Ziyi Chen,Pingchun Guo,Hua Zhu,Yanxiang Wang
In this study, a photorechargeable supercapacitor was prepared with ZnMoO4, Zn(CF3SO3)2 and reduced graphene oxide hydrogel (rGH) as the photoanode, electrolyte and cathode, respectively. The microstructure, phase composition, light absorbance, specific surface area and chemical structure of products and the photoelectrochemical performance of supercapacitors were characterized using field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), high-resolution transmission electron microscopy (HR-TEM), ultraviolet-visible (UV-vis) spectroscopy, Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and electrochemical workstation. The ZnMoO4//rGH supercapacitor exhibited a high specific capacity of 156.09 F g−1 under photoelectric synergistic charging (namely, a light intensity of 95 mW cm−2 and a current density of 0.5 A g−1), which increased by 35.66% relative to that of only electric charging. Meanwhile, the capacity retention and coulombic efficiency rates of the device are 137% and 100%, respectively, under photoelectric synergistic charging and discharging for 10 000 cycles. This suggests that the ZnMoO4//rGH photorechargeable supercapacitor exhibits excellent stability and shows applications in the wearable electronic industry.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2026
·
IF 7.9
Yiran Liu,Hanling Guo,Ruyi Jing,Enhui Zhang,Fengxian Gao,Min Gong,Xiang Lin,Liang Zhang,Dongrui Wang
Rechargeable aqueous Zn||MnO 2 batteries using near-neutral electrolytes have attracted considerable interest owing to their environmental benignity and high safety. However, MnO 2 cathodes with high mass loading suffer from sluggish reaction kinetics and structural degradation during long-term cycling, particularly under low-current-density conditions. Limited ion diffusion in thick electrodes results in capacity fading, while slow proton intercalation aggravates irreversible phase transitions, leading to active material dissolution and rapid capacity loss. To address these challenges, we propose a dual-modification strategy involving Ce doping and reduced graphene oxide (rGO) coating. The charge compensation effect induced by Ce doping increases the Mn 3+ /Mn 4+ ratio in MnO 2 from 0.36 to 0.61, effectively optimizing the electronic structure and improving lattice stability. Meanwhile, the constructed three-dimensional rGO conductive network reduces interfacial charge-transfer resistance and alleviates volume strain during cycling. Benefiting from this synergistic effect, the composite cathode achieves an areal capacity of 2.05 mAh cm −2 at 0.1C and retains 77.8 % of its initial capacity over 507 cycles at 2 C. This work offers a novel synergistic strategy for designing high-mass-loading cathodes and advances the practical implementation of Zn||MnO 2 batteries in grid-scale energy storage.
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2026
·
IF 5.4
Jin-yang-zi Li,Yi-da Wang,Yu-chen Zhang,Ling Li,Qian Zhang
This study developed a S-doped two-dimensional molybdenum carbide composited with graphene oxide (S-Mo x C/GO) for efficient electrochemical degradation of methyl orange (MO). The incorporation of S refined the MoₓC nanocrystals and reduced graphene stacking, significantly enhancing electrocatalytic performance. The S- Mo x C /GO system achieved 99.9% removal of 10 mg/L MO within 45 min, outperforming the undoped counterpart (95.2%). Quenching tests identified singlet oxygen ( 1 O 2 ) as the dominant reactive species. DFT calculations revealed that S doping facilitates H 2 O adsorption and promotes electron transfer from H 2 O to adjacent Mo sites, thereby accelerating the activation of oxygen species for 1 O 2 generation. Degradation pathways were proposed based on HPLC and computational analysis. Additionally, toxicological assessment indicated that most degradation products exhibit low ecological risk. This work elucidates the role of S doping in enhancing catalytic activity and provides a feasible strategy for designing efficient Mo x C-based catalysts for organic wastewater treatment.
✓ 已验证
产品关联
DOI
高影响因子
POLYMER COMPOSITES
·
2026
·
IF 4.7
Yanan Sun,Zuquan Jin,Bo Pang,Lin Yang,Shicai Li,Zhixin Wang
Glass fiber reinforced polymer (GFRP) composites find extensive application in the field of concrete structures, but their long-term performance is critically limited by the degradation of the polymer matrix under alkaline concrete environments. This paper presents a twofold modification strategy of using molecular barriers and stable crosslinking structure in the resin to improve its hydrophobicity, alkali hydrolysis, and interfacial bonding, and thus increase the durability of the GFRP composites. Results show that the synergistically modified system exhibits a 98.84% increase in hydrophobicity (contact angle: 140.58°) and an 80.70% reduction in surface roughness after alkali exposure, compared with the unmodified resin. After being subjected to prolonged alkaline aging, the modified resin shows a 61.21% increase in tensile strength retention, while the associated GFRP bars exhibit a 19.68% improvement in their strength retention. In addition, the synergistic effect of the three-dimensional hybrid structure significantly enhances the interfacial adhesion between the fiber and resin. The interfacial interaction energy between the modified resin and glass fiber increased to 16 kJ/mol, accompanied by a 135.29% increase in maximum debonding strain. Therefore, this work provides a chemically synergistic and functionally graded resin matrix, which enables GFRP composites to retain long-term performance in highly alkaline and corrosive concrete environments. Summary Developed a novel synergistic barrier-hybrid network approach to modify resin. Explained the synergistic effects in composites by experiments and simulations. Enhances the corrosion resistance and interfacial adhesion of GFRP bars.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Storage
·
2026
·
IF 9.8
Xintian Yang,Ming Li,Xin Li,Yali Liu,Ying Zhang
Mannitol water-based phase change materials have good prospects in the field of fruit and vegetable refrigeration and preservation. However, the unresolved trade-off between high latent heat and low thermal conductivity impedes the advancement of this technology. This paper fabricated the composite mannitol water-based phase change materials with expanded graphite as thermal conductive fillers modified by cetyltrimethylammonium chloride (CTAC). The antagonistic effect influenced by the non-polar nature and particle size of the expanded graphite was verified. The thermal properties of the composite materials were evaluated through differential scanning calorimetry, under different particle sizes of modified expanded graphite and proportions of modifiers, respectively. The optimum adsorption capacity was achieved with 80 mesh expanded graphite modified through 0.09 g CATC, which was increased by 74.13% compared to that of the unmodified expanded graphite. The contact angle decreased to 9.36° with the CTAC. The melting temperature of the composite material with a mass fraction of 9% MEG-80 was −2.43 °C, and the latent heat of melting is 277.19 J/g. Compared to mannitol water-based phase change materials, the maximum decrease in latent heat of melting was less than 10.31%. After 100 freeze-melt cycles, there was a small fluctuation in its melting temperature. The latent heat of melting only decreased by 3.72%. This study provides data support and reference for the feasibility of applying MEG/MW composite phase change materials in food refrigeration and preservation.
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9
Zhi Yang,Lei Chen,Cheng Chen,Habib Ullah,Dawei Li,Yunxia Zhu,Kaijie Yang,Xiaoying Zhu,Baoliang Chen
Interfacial solar evaporation provides a sustainable pathway for freshwater production, yet it suffer critical failure in hypersaline conditions due to salt accumulation. Conventional Janus evaporators mitigate surface fouling yet fail to harvest salts as valuable resources. In this work, we introduce a wing-shaped Janus evaporator that spatially separates evaporation from crystallization through a rationally designed asymmetric interfacial force field, engineered through synergistic control of surface wettability and three-dimensional geometric inclination. This design directs brine flow to the edges for localized salt crystallization, preserving a pristine photothermal surface. The system delivers a high evaporation rate of 2.055 kg m −2 h −1 from pure water and a salt recovery rate of 69.413 g m −2 h −1 from 15 wt% brine over 120 h continuous operation. By transforming salt fouling into a resource recovery, this work establishes a paradigm shift toward zero-liquid-discharge solar desalination with dual output of freshwater and salts.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.7
Yuan Tian,Jie Shi,Nanxiang He,Jinze Wang,Sicong Tan,Qian Feng,Zhaoyang Xu
Silk fibroin (SF) is a natural biopolymer that is highly suitable for preparing biocompatible composite hydrogel strain sensors due to its excellent biocompatibility, amphiphilicity, and biodegradability. However, the excessive crystallization of β-sheet structures in SF limits the tensile and adhesive properties of pure SF hydrogels, severely restricting their application in hydrogel sensors. This study addresses this problem by introducing polyacrylamide (PAM) into the SF hydrogel system to construct a double-network structure. The flexible PAM chains regulate the β-sheet crystallization in SF through intermolecular forces, simultaneously altering the network morphology of the PAM/SF hydrogel, thereby improving its tensile and adhesive properties. Furthermore, this study introduces tannic acid-modified reduced graphene oxide (TA-rGO) into the PAM/SF double-network hydrogel system. This not only imparts conductivity to the hydrogel but also further enhances its adhesion. After in-situ reduction, some oxygen-containing functional groups in graphene oxide (GO) are retained, thus maintaining the integrity of the hydrogel structure. By optimizing the ratio of SF and GO, the PTSG-4 hydrogel with excellent mechanical and adhesive properties was obtained. This hydrogel exhibits a maximum tensile stress of 221.65 kPa, a fracture elongation of 1467.36%, and an adhesion strength of 32.48 kPa on pigskin. The strain sensor assembled based on this hydrogel demonstrates excellent stability (500 cycles at 60% strain), high sensitivity (GF = 9.43), and a wide measurement range (1350%). It can also self-adhere to various parts of the human body, enabling real-time detection of human movement, providing an innovative method for the development of next-generation flexible electronic devices.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2026
·
IF 5.4
Meijuan Shi,Huirui Zhu,Yijie Wang,Yumeng Guo,Yuyao Wang,Hongqin Wang,Na Wang,Tao Gong,Rui Guo
Graphene oxide (GO) nanostructures enable precision tumor delivery of anticancer drugs/genes, enhancing bioavailability and supporting photothermal tumor ablation. However, existing research predominantly focuses on single tumor-targeting strategies, there is still an urgent need to explore GO-based nanodelivery platforms with broad-spectrum antitumor effects. This study presents a facile and green synthesis method to prepare GO nanostructure (GO-PEG-PEI-FA, GPPF) for targeted delivery of si PD-L1 and photothermal-immunotherapy for cancer treatment. GPPF can be selectively internalized by MDA-MB-231 , HCT116 , and A2780 cells, subsequently achieving lysosomal escape and downregulating PD-L1 gene expression by approximately 69%. Under 808 nm laser irradiation, 40 μg/ml GPPF reduced the viability of three cancer cell lines by 22.91%, 27.31%, and 60.06%, respectively. The photothermal effect induced elevated ROS generation, promoting immunogenic cell death in tumor cells. Either GPPF/si PD-L1 alone or in combination with phototherapy significantly inhibited the growth of triple-negative breast cancer tumors, with synergistic enhancement of cytotoxic T lymphocytes infiltration. This study provides insights into the design of GO-based platforms to combine photothermal therapy and immunotherapy, particularly for triple-negative breast cancer.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）