NEW JOURNAL OF CHEMISTRY
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2025
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IF 2.5
Guohao Xu,Jiaqi Liu,Xin Gao,Xuedong Zhu
Hollow b-oriented ZSM-5 with a thickness of approximately 80 nm was synthesized for methane co-aromatization with propane (MCP) through the desilication–recrystallization of b-oriented ZSM-5 using tetrapropylammonium hydroxide (TPAOH) as a template. A hollow structure was introduced into b-oriented ZSM-5 via desilication with OH− and a thin intact shell was formed during recrystallization of leached Si species under TPA+ template application. By regulating the recrystallization time, shell thicknesses could be controlled from 120 nm to 60 nm. Under a recrystallization time of 24 h, the hollow b-oriented ZSM-5 possessed suitable acidity as well as the largest SBET and daver. When the hollow b-oriented ZSM-5 zeolite was used as the support for a zinc-based catalyst, aromatic selectivity and the conversion of methane and propane were improved. A maximum aromatic selectivity of 87.5% was achieved, with methane and propane conversion of 10.7% and 77.9%, respectively.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Bowen Zhao,Jianyi Lu,Qing Xu,Fei Zheng,Zhiyong Zhou
Owing to its strong chemical inertness, sulfur hexafluoride (SF 6 ) is intrinsically resistant to degradation. Accordingly, a composite material was developed by coupling sulfidated nanoscale zero-valent iron (S-nZVI) with fly ash-derived zeolite ZSM-5, forming a multi-level heterostructure for efficient SF 6 degradation. Experimental results confirmed that the composite exhibited exceptional low-temperature degradation performance, achieving complete removal of 2 vol% SF 6 at 600 °C with a specific degradation amount of 206.1 mL/g. Remarkably, effective degradation was still maintained at 300 °C, surpassing the previously reported minimum temperature limit (∼450 °C) for SF 6 degradation. Kinetic analysis revealed a near-zero-order reaction behavior with an apparent activation energy of only 27.61 kJ/mol, indicating that the initial stage was dominated by adsorption, diffusion, or interfacial electron transfer rather than S F bond cleavage. Comprehensive characterization showed that the composite possessed Fe 0 /FeS and FeS/ZSM-5 dual heterointerfaces, serving simultaneously as adsorption carriers, electron donors and acceptors. Specifically, the microporous framework of ZSM-5 physically confines nonpolar SF 6 molecules through van der Waals and confinement effects, enriching their local concentration and forming a favorable adsorption-activation interface. Electrons released by Fe 0 migrate directionally to these enrichment sites under the drive of the multi-level heterostructure, enabling concurrent adsorption and electron-induced activation of SF 6 , and thereby facilitating S F bond cleavage. The resulting fluoride ions initially react with Fe 0 to generate FeF 3 , which subsequently interacts with the silicate framework to produce SiF 4 , establishing a mediated fluorine migration pathway from SF 6 to SiF 4 and enabling deep degradation with sustained reactivity.
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FUEL
·
2025
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IF 7.5
Shijie Ma,Hangcheng Song,Jun Chen,Shuyan Yu,Hongyu Zhao
Biomass-derived 5-hydroxymethylfurfural (HMF) to 2,5-dihydroxymethylfuran (DHMF) is a pivotal process in biomass valorization, however, it is hindered by the high cost of noble metal catalysts and environmental hazards posed by toxic copper-chromium systems. Herein, we report an unexpected discovery that naturally occurring Fe-Ti impurities in kaolinite act as a highly efficient heterogeneous catalyst for this reaction, challenging the conventional notion that impurities are detrimental to catalytic performance. Through hydrothermal synthesis and controlled reduction, Fe species are highly dispersed on the TiO 2 rutile surface, forming a synergistic Fe 2+ -oxygen vacancy-Ti 4+ (Fe 2+ -O v –Ti 4+ ) interface. The catalyst exhibits outstanding activity and selectivity under mild conditions (50 °C, 0.6 MPa H 2 ), achieving 97.6 % HMF conversion and 93.3 % DHMF selectivity, significantly outperforming catalysts based on kaolin and pure TiO 2 . Kinetic analysis reveals an apparent activation energy of 50.14 kJ/mol and a near first-order dependence on HMF concentration. Combined DFT calculations and in situ DRIFTS spectra confirm that the Fe 2+ -O v interface facilitates the adsorption of the HMF aldehyde group (adsorption energy −0.56 eV) and lowers the energy barrier for H 2 dissociation to 0.06 eV, enabling highly selective C=O hydrogenation. Moreover, the reaction benefits from the strong polarity of water and the hydrogen-bonding capacity, which further enhances catalytic performance. The catalyst retains over 90 % activity after 10 cycles, demonstrating excellent stability. This work not only provides a sustainable route for high-value utilization of kaolin-associated metal impurities, but also offers theoretical insights into the rational design of non-precious metal catalysts for biomass transformation.
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JOURNAL OF ELECTRONIC MATERIALS
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2025
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IF 2.5
Zhu Xingwei,Cheng Yongchao,Gu Xiuquan
A flexible temperature and humidity sensor has been developed based on a composite of polyvinylidene fluoride (PVDF) and thermoplastic polyurethane (TPU). The sensor performance was optimized by introducing graphene quantum dots (NGQDs) and ionic liquids (TFSI) into the polymer composite. This type of humidity sensors has high sensitivity, fast response, and excellent stability, making it suitable for use in wearable health monitoring. The addition of TPU into PVDF facilitates the formation of a porous structure which has both a large specific surface area and high hydrophilicity. After optimizing the PVDF/TPU mass ratio to 5:3, such a humidity sensor displays 1.46 times higher sensitivity than that of pure PVDF film, with a linear response range of 10–90% relative humidity. The response time and recovery time are 7.67 s and 6.37 s, respectively. Owing to the improved hydrophobicity, the sensors also exhibit a good stability in a high humidity environment for > 10 days without significant degradation. Moreover, such a composite also has the capability to distinguish normal breathing from rapid breathing, demonstrating its potential in wearable health monitoring.
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Nature Communications
·
2025
·Vol. 16
·期 1
·1-11
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IF 15.7
Zhu Zhijie,Qian Shuairen,Dong Xudong,Liu Shuang,Zhou Yuxuan,Nie Kaiqi,An Xingda,Li Chaoran,Cheng Yi,Yan Binhang,Feng Kai,Zhang Xiaohong,He Le
Plasmonic photocatalysis offers a promising route to harvest solar energy and drive chemical reactions by the generated heat and energetic charge carriers towards a low-carbon economy. Understanding the mechanisms of plasmonic photocatalysis is vital for the rational design of efficient catalysts but remains a great challenge. Here we report the discovery of an overlooked photocatalytic mechanism based on the enhanced coverage of CO on an Au-Ni heterostructure under light. Detailed studies reveal that hot carrier transfer from Au to Ni via plasmonic excitation increases the electron density of Ni, thereby boosting the population of Ni sites capable of CO adsorption. This increase in active CO-binding sites, rather than local heating or altered adsorption properties of individual Ni sites, is found to be the major contributor to the light-promoted CH 4 production in the Au-Ni-catalyzed CO hydrogenation reaction. This mechanism is further validated by the observation of higher CH 4 selectivity in photocatalytic CO 2 hydrogenation. Our study deepens the mechanistic understanding of plasmonic photocatalysis and offers new ideas for the design of advanced catalytic structures.
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Nature Communications
·
2025
·Vol. 16
·期 1
·1-12
·
IF 15.7
Guo Xingkui,Zhang Lijie,Zhuo Hao,Chen Chuyang,Yang Hang,Li Tian,Qi Haobo,Zhai Wei
Zwitterionic hydrogels have emerged as promising candidates for diverse applications, especially in epidermal electronics, due to their prominent hemocompatibility, superhydration, and nonfouling properties. However, their practical applications are often severely hindered by inadequate mechanical properties and limited functionalities. Here, we develop a mechanically robust zwitterionic hydrogel with an optimal combination of functions (RHOCF) by constructing a consolidated dynamic supramolecular framework and a spatially multiscale hierarchical structure. By finely introducing a reinforced entangled supramolecular network, along with hierarchical architectures across multiple length scales into the zwitterionic hydrogel system, we can engineer highly stiff and tough zwitterionic hydrogels that seamlessly integrate typically incompatible mechanical properties, including excellent stretchability, notable tensile strength, high fracture toughness, considerable stiffness, and great resilience. The RHOCF further integrates optical transparency, ionic conductivity, self-adhesion, and freezing tolerance, enabling conformal contact with dynamic, irregular surfaces for stable motion sensing and artifact-free electrophysiological signal acquisition.
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Journal of Neuroinflammation
·
2025
·Vol. 22
·期 1
·1-18
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IF 10.1
Zhang Lianshuai,Chen Kai,Zeng Ruicheng,Bu Guojun,Chen Xiao-Fen
Background The colony-stimulating factor 1 receptor (CSF1R) is a receptor tyrosine kinase essential for microglial development and homeostasis. While dysregulated CSF1R signaling has been implicated in Alzheimer’s disease (AD), the biological function of its soluble ectodomain (sCSF1R)—generated by a disintegrin and metalloproteinase 17 (ADAM17)-mediated cleavage—remains poorly understood in neurodegeneration. Methods We quantified sCSF1R levels in the brain and cerebrospinal fluid (CSF) of 5×FAD transgenic mice and wild-type controls using ELISA and immunoblotting, and reanalyzed publicly available CSF proteomic datasets from three independent, clinically characterized AD cohorts. Functional studies were performed in primary microglial cultures and through hippocampal delivery of recombinant sCSF1R into 5×FAD mice to evaluate its effects on microglial activity and amyloid pathology. Results In this study, we identify sCSF1R as a previously unrecognized, functionally active modulator of microglial responses in AD. Analysis of three independent clinical cohorts revealed significantly elevated sCSF1R levels in the CSF of AD patients, a finding recapitulated in both the brain and CSF of 5×FAD transgenic mice. Importantly, sCSF1R concentrations showed positive correlations with core AD biomarkers—including total tau, phosphorylated tau, and β-amyloid 1–42 (Aβ42)—and with measures of cognitive performance, highlighting its clinical significance and suggesting that sCSF1R may serve as a marker of disease-associated microglial responses. Functionally, recombinant sCSF1R enhanced microglial survival, migration, proinflammatory signaling, and Aβ phagocytosis in vitro. In vivo, administration of sCSF1R promoted microglial clustering around amyloid plaques, reduced Aβ deposition, and attenuated plaque-associated neuritic dystrophy in 5×FAD mice. Finally, we found that soluble TREM2 (sTREM2)—a CSF biomarker and potent activator of microglia—stimulates ADAM17-dependent cleavage of membrane-bound CSF1R, thereby driving the generation of sCSF1R. Collectively, these findings establish sCSF1R as a novel regulator of microglial function in AD and reveal a regulatory axis linking sTREM2, ADAM17 activity, and CSF1R shedding with potential implications for disease modulation. Conclusions These findings identify sCSF1R as a novel component of the neuroimmune signaling network in AD and highlight its dual potential as a CSF biomarker of beneficial microglial activation and a candidate therapeutic modulator of neuroinflammation and amyloid pathology.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
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2025
·Vol. 36
·期 1
·1-21
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IF 4.5
Lv Xueman,Liu Yan,Wang Lina,Liu Xuanting,Wang Shuo,Xu Zihe,Ma Yunhai
Mechanical compatibility is a major challenge in designing orbital bone scaffolds, which involving material selection, structural design and fabrication processes. In this study, a novel impact model database containing essential components involved in tissue engineering repair of orbital fracture was established for finite element analysis (FEA). The mechanical compatibility between various pattern-designed scaffold and the orbital bone defect site was tested to raise the optimized square pattern filled scaffold for the subsequent study. Based on the optimized structure, 3D printed bone scaffolds with different β-TCP contents were fabricated. It was confirmed that the composite scaffold containing 30% β-TCP and 70% polycaprolactone (PCL@30TCP) demonstrated significantly enhanced hydrophilicity, mechanical strength, water absorption, and accelerated degradation relative to other groups ( p < 0.05). In vitro evaluations confirmed the significant advantages in cytocompatibility and osteogenic activity of PCL@30TCP scaffold ( p < 0.05). Furthermore, rabbit orbital defect repair experiments demonstrated that the 3D-printed PCL@30TCP scaffold markedly promoted osteogenesis at the defect site through three synergistic mechanisms: enhancing neo-bone formation and maturation, guiding tissue growth into the interior structure of scaffold, and obviously upregulating bone morphogenetic protein 2 (BMP-2) and osteocalcin (OCN) expression ( p < 0.05). Importantly, comprehensive biosafety assessments validated the clinical applicability of the PCL@30TCP scaffold. These findings indicate that the square-patterned PCL@30TCP 3D-printed scaffold exhibits exceptional osteogenic performance both in vitro and in vivo, demonstrating clinical potential for orbital bone defect repair. Graphical
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JOURNAL OF POLYMER RESEARCH
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2025
·Vol. 32
·期 11
·1-8
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IF 2.8
Cao Yong,Tang Sisi,Kong Weili,Wang Xinyu,He Xiaomin,Li Haibin,Jin Jie,Zhang Jun
The (thio)urea/base bifunctional activation catalyst system activates monomers or propagating alcohols through hydrogen bonding, demonstrating exceptional selectivity and activity. A series of economical cyclic (thio)urea-base combinations were employed as catalytic systems for rac-lactide and ε-caprolactone ring-opening polymerization (ROP). Among these, cyclic ureas combined with potassium methoxide (MeOK) exhibited superior catalytic activity over their thiourea counterparts, with the U3/MeOK system displaying remarkable controllability in rac-lactide polymerization, producing polymers with exceptionally low dispersity (Đ < 1.10). Kinetic studies confirmed that the polymerization process was well-controlled and adhered to first-order kinetics. Comparative analyses indicated that the dual hydrogen atoms on the urea moiety enhance the regulation of rac-lactide ROP. A plausible catalytic mechanism for the urea/MeOK system in rac-lactide polymerization was postulated. Additionally, in toluene solution, the urea/ MeOK system showed moderate catalytic performance for ε-caprolactone polymerization with reduced control, yielding poly(ε-caprolactone) of higher polydispersity. This study offers a straightforward approach toward the production of biodegradable polymeric materials.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2025
·Vol. 36
·期 29
·1-17
·
IF 2.8
Sun Shuhui,Pei Qingyin,Zheng Guangwei,Zhang Haixia,Jing Zhenfeng,Zhang Sen,Li Xingfu,Tian Qingbo,Zhang Fengqing
In this study, Hf 4+ -doped BiFe 1− x Hf x O 3 ( x = 0–1.5 mol%) thin films were synthesized via the sol–gel method, and the effects of Hf doping on the structural and electrical properties were systematically investigated. The results reveal that 1.2-mol% Hf incorporation induces lattice distortion and grain refinement, significantly suppressing the formation of oxygen vacancies. Consequently, the Fe 3+ /Fe 2+ ratio increases to 2.03, and the relative concentration of oxygen vacancies decreases to 0.14. Under an applied electric field of 100 kV/cm, the leakage current density is reduced to 2.98 × 10 –6 A/cm 2 , while the remanent polarization reaches 93.92 μC/cm 2 . The dielectric constant is enhanced to 171, showing stable frequency dependence. Aging tests indicate a low polarization degradation rate of only 10.5%, and the optical band gap is widened to 2.60 eV. These results demonstrate that Hf 4+ doping synergistically improves the overall performance of BiFeO 3 thin films through defect suppression and lattice regulation. This work clarifies the mechanism by which Hf 4+ doping enhances the ferroelectric properties of BiFeO 3 films by inhibiting oxygen vacancy formation and optimizing the lattice structure, thereby providing a solid experimental foundation for the development of low-leakage, high-stability ferroelectric memory devices.
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Nature Communications
·
2025
·Vol. 16
·期 1
·1-12
·
IF 15.7
Pan Haibin,Bai Yang,Sun Kexuan,Yang Ming,Tian Ruijia,Meng Yuanyuan,Gao Jiangwei,Wang Yaohua,Wang Jingnan,Zhou Shujing,Song Zhenhua,Xiaoyi Lu,Liu Chang,Ge Ziyi
All-perovskite tandem solar cells (PTSCs) demonstrate exceptional potential to surpass the Shockley-Queisser (SQ) theoretical limit. However, practical implementation faces critical challenges due to a self-reinforcing photothermal-mechanical degradation mechanism originating from multiscale physical couplings. In this study, a multifunctional polyamine ligand triphenyltriamine thiophosphate (TPTA) was introduced into the tin-lead (Sn-Pb) perovskite solution system to establish an I-Sn-N coordination-mediated lattice stabilization framework, and the photothermal-mechanical coupling path was cut off from multiple aspects such as suppressing periodic oscillations and regulating stress. Consequently, single-junction Sn-Pb perovskite solar cells (PSCs) achieve a power conversion efficiency (PCE) of 23.4% and retaining 94.9% of initial performance after 950 hours of maximum power point (MPP) tracking. When the device is integrated into the 2-terminal (2 T) tandem architecture, its PCE reaches a significant level of 29.6 % (certified PCE of 28.9%), and 93.4% of the initial efficiency can be maintained after 900 hours continuous operation.
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JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
·
2025
·Vol. 40
·期 5
·1504-1513
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IF 1.1
Wang Yu,Yan Lisi,Cheng Bo,Yang Jing,Li Binbin,Wang Xinyu
To improve the controlled release ability, we prepared attapulgite into microspheres by spray drying. This research began with a thorough thermogravimetric analysis to optimize attapulgite’s heat treatment for drug loading. By advanced spray drying, attapulgite was transformed into microspheres, refining its drug release characteristics. Various parameters were examined, achieving optimal particle size and morphology at 25% solid content, 2.5% dispersant, and 3% binder. Attapulgite microspheres demonstrated exceptional encapsulation efficiency, exceeding 95% for doxorubicin hydrochloride, highlighting their versatility in drug delivery. FTIR and XRD were used to predict changes in material properties after spray drying. Notably, cytotoxicity tests confirmed the high biocompatibility of attapulgite microspheres, devoid of cell death induction. Attapulgite microsphere loaded with doxorubicin enable sustained drug release and maintain killing ability against tumor cells. This study confirms the viability of spray dried attapulgite microspheres for efficient drug loading and delivery and provides insights for innovative drug delivery systems that utilize the unique properties of attapulgite to advance therapeutics.
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