Journal of Macromolecular Science Part B-Physics
·
2026
·
IF 1.4
Ziyan Wang
In recent years, zinc-ion hybrid capacitors (ZIHCs) have garnered significant interest owing to their advantages, including eco-friendliness, affordability, inherent safety, and straightforward assembly under ambient conditions. These devices integrate a capacitor-type electrode with a battery-type electrode, effectively merging the superior power output and extended cycle life of supercapacitors with the high energy storage capacity characteristic of zinc-ion batteries. Nevertheless, the limited availability of active sites for Zn2+ storage in carbon-based cathodes, coupled with poorly optimized pore structures that hinder ion transport, results in suboptimal electrochemical performance. Here, we propose a ZnCu-MOF derived N-doped ordered mesoporous carbon materials (ZnCu-MC). N-doping strategy could improve the hydrophilicity of the electrode materials, reducing interfacial contact resistance, while the porous structure enabled rapid Zn2+ migration, critical for ultra-high rate performance. Therefore, Zn//ZnCu-MC full cell realized high specific capacity of 170 F g−1 at 1 A g−1 and 92% capacity retention after 65000 cycles. This work not only provides a promising strategy to improve the Zn2+ storage capability of carbonaceous materials but also sheds lights on charge-storage mechanism and advanced electrode materials’ design for ZIHCs toward practical applications.
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Catalysts
·
2026
·Vol. 16
·期 3
·250
·
IF 4.5
Benqun Yang,Rui Yang,Lisha Dong,Haimei Xu,Shiming Qiu,Huimin Yang,Zhifeng Li,Guofang Zuo
Traditional oxidative dehydrogenation of n-butene has typically required relatively high operating temperatures (400–500 °C), which has driven increasing interest in the development of catalysts capable of delivering high activity at lower temperatures. In this study, zinc ferrite (ZnFe2O4-ST) was successfully synthesized via hydrothermal hydrolysis of Zn–Fe oleate and demonstrated remarkable catalytic performance for the oxidative dehydrogenation of n-butene under mild conditions. At 300 °C, ZnFe2O4-ST achieved a conversion of 72.9% with 92.1% selectivity toward 1,3-butadiene, a result that, to the best of our knowledge, ranks among the best reported in the literature. By contrast, ZnFe2O4prepared by conventional coprecipitation (17.2% conversion with 91.3% selectivity) and sol-gel (10.1% conversion with 86.4% selectivity) methods showed much lower activities, highlighting the critical influence of synthesis strategy on catalytic performance. To better understand the origin of these differences, a detailed structural and physicochemical characterization was undertaken using X-ray diffraction (XRD), thermogravimetric analysis (TGA), transmission electron microscopy (TEM), N2adsorption–desorption, X-ray photoelectron spectroscopy (XPS), H2-temperature-programmed reduction (H2-TPR), temperature-programmed re-oxidation (TPRO), and NH3-temperature-programmed desorption (NH3-TPD). These analyses revealed that the as-synthesized ZnFe2O4-ST possessed a significantly smaller average particle size, a larger specific surface area, and superior reducibility compared with the other samples. These properties are believed to be the key factors underpinning its outstanding catalytic behavior and provide important insights into the design of efficient low-temperature catalysts for selective oxidative dehydrogenation.
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APPLIED CATALYSIS A-GENERAL
·
2026
·
IF 4.8
Dan Xu,Zhuoya Bao,Chengyao Tian,Yong Su,Angang Song,Hui Fu,Hengyi Fang,Rongkai Kang,Jianmei Wang,Arthur Ernest Koschany,Mingxing Tang,Mingdong Yi,Shuyuan Wang
1,2,6-Hexanetriol tailors KL zeolites with varied micro-/mesopore ratios. • ALD introduces Pt species into both microporous and mesoporous KL regions • A balanced micro-/mesopore architecture promotes toluene production. • An optimized pore architecture suppresses the formation of isomers. The pore architecture of KL zeolite plays a critical role in linear alkane aromatization over Pt-based catalysts. However, how the interplay between microporous confinement and mesopore-enabled diffusion regulates Pt species and the subsequent formation of aromatics remains insufficiently understood. Herein, 1,2,6-hexanetriol was selected as a zeolite growth modifier to tailor the porous structure of KL zeolite with varied micro-/mesopore ratios. Pt species were then introduced into the KL zeolites by atomic layer deposition, affording a series of Pt/KL catalysts in which Pt species were distributed in both microporous and mesoporous regions. The Pt/KL-T 1 catalyst with a mesopore-to-micropore volume ratio of 1.2 gave an enhanced toluene formation rate (7.6 × 10 2 mmol Toluene ·g Pt –1 ·h –1 ), which was approximately twice that of the purely microporous Pt/KL catalyst. Combined structural characterizations and molecular dynamics simulations indicated an appropriate balance between micropore and mesopore facilitates the diffusion and further dehydrocyclization of alkene (σC 7 = ) intermediates, while suppressing isomer formation. These findings clarify the balance of micro- and mesoporosity in KL zeolite and provide a strategy to tune Pt/KL-based catalysts for alkane aromatization. Download: Download high-res image (190KB) Download: Download full-size image
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CERAMICS INTERNATIONAL
·
2026
·
IF 6
Yan Chen,Qingsong Luo,Shuang Gao,Runduo Teng,Qiyuan Fu,Yanting Wang,Changhao Feng
The highly sensitive and rapid detection of n-butanol holds great significance for environmental protection and human health. In this study, Ag-decorated ZnO/SnO 2 (AZSO) nanofibers were fabricated via electrospinning followed by an Ag decoration process. Compared with the undecorated ZnO/SnO 2 nanofibers (ZSO), the as-prepared AZSO sensor exhibited enhanced gas-sensing performance, as its response to 30 ppm n-butanol increased from 29.68 to 37.15. Meanwhile, at the optimal operating temperature of 150 °C, it demonstrates an ultra-fast response time of only 1 s, and its recovery time is drastically shortened from 1776 s to 227 s. In addition, AZSO exhibited stronger selectivity towards n-butanol, accompanied by excellent repeatability and long-term stability. The enhanced gas-sensing performance of AZSO was attributed to the synergistic effect of the Ag spillover effect, the ZnO/SnO 2 n-n heterojunction, and the interfacial electron transfer.
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JOURNAL OF MOLECULAR LIQUIDS
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2026
·
IF 5.2
Fangxu Li,Qing Tang
To enhance the enrichment efficiency of copper oxide ores, calcium polysulfide (CaSx) in combination with potassium n-butoxypropyl xanthate (BPX) was applied for the sulfidization flotation of malachite in this study—marking the first reported use of this reagent system for such a purpose. Flotation experiments demonstrated that the CaSx-BPX system exhibited superior selectivity and separation performance for malachite relative to calcite and quartz, outperforming three reference systems: CaSx-Sodium isobutyl xanthate(IBX), Na 2 S-BPX, and Na 2 S-IBX. Under optimized conditions (pH = 7, CaSx dosage of 200 mg/L, and BPX dosage of 100 mg/L), the recovery of malachite, calcite, and quartz were 98.23%, 5.89%, and 2.35%, respectively. Zeta potential analyses showed a negative shift in the surface potential of malachite over the pH range of 7–12 after the addition of CaSx, followed by a further negative shift upon BPX adsorption. The XPS results further indicate that CaSx forms stable Cu(I/II)–S chelates on the malachite surface. Subsequently, the sulfided malachite chemically reacts with BPX to form C–S–Cu(I/II) chemical bonds. Contact angle measurements revealed that malachite undergoes a transition from hydrophilic to hydrophobic upon treatment with CaSx–BPX, whereas calcite and quartz retain their hydrophilic nature. This differential wettability provides a rational explanation for the high flotation selectivity achieved among the three minerals.
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Journal of Stroke & Cerebrovascular Diseases
·
2026
·
IF 2.1
Tao Ye,Xuandong Kong,Xinhuang Lv,Qiyao Li,Hangqi Jin,Mozi Chen,Jiaming Liu,Ming Zhao
Background Trimethylamine-N-oxide (TMAO), a metabolite produced by gut microbiota, has been linked to brain disease; however, its role in intracerebral hemorrhage (ICH) remains unclear. Methods Animal experiments were conducted to demonstrate the effects of TMAO on collagenase-induced rat models of ICH. Neurological function was evaluated using the modified neurological severity score (mNSS), and neuronal damage was assessed by NeuN staining. Microglial activation and pro-inflammatory cytokine expression were examined. To further investigate the mechanism of TMAO, we performed Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis on its predicted molecular targets. BV2 microglia were treated with TMAO to assess the levels of reactive oxygen species (ROS), cyclooxygenase-2 (COX-2), NOD-like receptor protein 3 (NLRP3), and caspase-1. Moreover, ICH rats were intragastrically treated with TMAO precursor L-carnitine (LC), and antibiotic cocktail treatment was used to deplete the gut microbiota, then assessed the effect. Results Our results showed that TMAO administration exacerbated neurological deficits and microglial-mediated neuroinflammation in ICH rats. NOD-like receptor signaling pathway was a key mechanism promoting ICH pathogenesis and confirmed that TMAO supplementation exacerbated microglial activation by regulating NLRP3 inflammasome activity in vitro . Moreover, gut microbiota depletion attenuated TMAO-induced activation of NLRP3 and the subsequent neuroinflammatory response in ICH. Conclusion Collectively, these findings showed that Microbial Metabolite TMAO contributes to ICH-induced neuroinflammation by activating the NLRP3 signaling pathway.
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PubMed
高影响因子
Journal of Materials Chemistry C
·
2026
·
IF 5.1
Yuhao Liu,Hongguang Li,Shuaishuai Liu,Hongzhen Li,Yiran Zhang,Kaipeng Zhuang,Jinrui Li,Nicolas Godbert
Bearing a highly symmetric and rigid structure, fullerene C60 is a fascinating building block in supramolecular chemistry. The fact that the C60 moiety can be chemically modified brings infinite possibility in fine tuning the self-assembled structures. Herein, we report the synthesis of an N-substituted fulleropyrrolidine bearing adamantane (Ad) where the Ad unit was anchored onto the C60 moiety through only one-step reaction. Self-assembly of the Ad-C60 hybrid was investigated via a modified liquid-liquid interfacial precipitation (LLIP) method. Superstructures with rich morphologies were obtained, including spheres, hexagons, cubes, flowers and stacked flakes. Self-assemblies from xylene systems were selected as examples for deeper investigation. The internal organization was probed by power X-ray diffraction, which confirms the formation of monoclinic and orthorhombic lattice. Measurements on nonlinear optical performance revealed reverse saturable absorption. The photoluminescence of the Ad-C60 hybrid, both in solution and in the crystalline form, was also discussed with close comparison to two of its monosubstituted counterparts. This work provides insight on the structureproperty relationship of the C60-based superstructures, and strengthens the charming feature of C60 in both supramolecular chemistry and material science.
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NATURE
·
2026
·Vol. 654
·期 8117
·69-75
·
IF 56.1
Wang Di,Li Saisai,Ding Zijin,Xu Jian,Chen Xingyu,Zheng Qiao,Alshahrani Thamraa,Liu Siyu,He Tingwei,Yue Xinxin,Qaid Saif M. H.,Wei Keyu,Fu Xuewen,Feng Lin,Yang Ou,Ju Huanxin,Jiang Yuanzhi,Chen Jun,Yuan Mingjian
Conventional n–i–p architecture remains a robust platform for scalable perovskite photovoltaics 1 , 2 , yet its steady-state efficiency has stagnated at about 26% (ref. 3 ), lagging behind their p–i–n counterparts 4 . This performance gap arises from persistent non-radiative recombination at textured electron transport layer (ETL)/perovskite interfaces, yet the underlying physical origin remains unknown. Here we show that these losses originate from the synergistic combination of band misalignment and electron accumulation at the buried interface. To address this dual challenge, we develop a continuously graded n + /n-doped SnO 2 ETL through a ligand-competitive binding strategy, which enables spatially defined doping that creates a built-in electric field. This graded architecture simultaneously minimizes band offset and accelerates electron extraction, thereby effectively suppressing the cross-interface recombination. The resulting n–i–p perovskite solar cells (PSCs) achieve a certified steady-state power conversion efficiency (PCE) of 27.17% (27.50% in reverse scan), the highest for n–i–p PSCs reported so far. The scalability of this strategy is further demonstrated by achieving a PCE of 25.79% for a 1 cm 2 device and 23.33% for a perovskite module with a 16.02 cm 2 aperture area. This work establishes a generalized example for energy-band engineering in metal-oxide transport layers, overcoming a fundamental efficiency bottleneck in conventional perovskite photovoltaics.
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CERAMICS INTERNATIONAL
·
2026
·
IF 6
Ju He,Tianrun Ma,Bohua Duan,Dezhi Wang,Zhuangzhi Wu,xinli Liu
Ti(C,N)-based cermets are widely used in cutting tools and high-temperature structural components, but their application is limited by difficulties in fabricating large and complex-shaped parts. In this study, Ti(C,N)-based cermets were prepared via gel-cast using a CoCrCuFeNi high-entropy alloy (HEA) as the binder. The effects of solid loading on slurry stability and green body formation, as well as the influence of sintering temperature on microstructure and mechanical properties, were investigated. The results show that stable slurry and uniform green bodies were obtained at a solid loading of 55 vol%. With increasing sintering temperature, densification and mechanical properties improved concurrently, while the fracture mechanism transitioned from intergranular fracture to matrix tearing. The Ti(C,N)-based cermet sintered at 1550 °C for 60 min exhibited excellent properties, with a relative density of 96.42%, hardness of 1665.67 HV30, bending strength of 671.75 MPa, and fracture toughness of 6.44 MPa m 1/2 , comparable to conventional Ti(C,N)-Ni cermets. These results demonstrate that gel-cast with a HEA binder is a promising approach for fabricating large, complex-shaped Ti(C,N)-based cermets.
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MOLECULAR AND CELLULAR BIOCHEMISTRY
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2026
·
IF 4.7
Li Sijie,Huang Huanhuan,Feng Jiahui,Gu Qiang,Sun Daquan
Hepatocellular carcinoma (HCC) ranks among the most lethal cancers, and its dismal prognosis underscores the urgent need to elucidate the underlying carcinogenic mechanisms. Endoplasmic reticulum lipid rafts associated protein 2 (ERLIN2), an endoplasmic reticulum protein, has been implicated in various malignant tumors. However, its functional role in HCC remains poorly understood. Here, we found elevated ERLIN2 expression and N-glycosylation modification at asparagine 106 (N106) in HCC. We identify site-specific N-glycosylation as a crucial advantage of ERLIN2 that may result in aberrant cancer cell growth. Overexpression of either N-glycosylated ERLIN2 (wild-type, WT) or an asparagine-to-glutamine mutant (N106Q) in HCC cell lines indicated that N106 N-glycosylation of ERLIN2 acts as an important advantage in the tumorigenesis and triggers aberrant cell proliferation, migration, and invasion. Furthermore, we found that E3 ubiquitin ligase membrane-associated ring-CH-type finger protein 6 (MARCHF6) can mediate the ubiquitination degradation of ERLIN2, and this effect is more significant after the N-glycosylation at the N106 site is inhibited. In addition, excessive N-glycosylation at this site enhanced the interaction between ERLIN2 and cyclin B1 (CCNB1), leading to dysregulated CCNB1 expression and further accelerating the progression of HCC. Comprehensive studies confirm that N-glycosylation is a significant post-translational modification of ERLIN2 in HCC, and elucidating this mechanism may pave the way for the development of novel therapeutic strategies in the future.
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高影响因子
CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS
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2026
·
IF 0.8
Wu Qilong,Wang Shuang,Li Fashe,Ni Zihao,Zhou Li
With the growing global demand for renewable energy, biodiesel has garnered widespread attention due to its advantages such as renewability. However, owing to its high viscosity and poor low-temperature performance, n-butanol is introduced to improve its kinematic viscosity and low-temperature properties. This study determined the kinematic viscosity, density, freezing point, cold filter plugging point, and calorific value of Jatropha curcas biodiesel/n-butanol blended fuel, and employed GA-BP, PSO-BP, and BP models for prediction. Results indicate that at the ratios set in this experiment, increasing n-butanol content reduces the kinematic viscosity and density of the blended fuel. When the n-butanol ratio reaches 60%, the maximum decreases in freezing point, cold filter plugging point, and calorific value reach 18%, 21%, and 10%, respectively. The GA-BP model achieved training set determination coefficients close to 1 for all indicators in the prediction task, with the lowest correlation coefficient reaching 95.26%. Its prediction accuracy outperformed both the PSO-BP and BP models. After reformulating the blended fuel, the GA-BP model yielded predicted values with a minimum relative error of 0.11% compared to experimental measurements, while the maximum relative error remained below 9.94%. Overall, the GA-BP model demonstrated higher predictive accuracy for both linear and nonlinear data, providing reliable data support for blended fuel design and application.
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CRYSTAL GROWTH & DESIGN
·
2025
·
IF 3.4
Kaiwei Wang,Fumin Wang,Xubin Zhang,Yi Zhai,Mingshuai Sun,Yan Chen,Jiaxing Zhang,Yihao Wang,Hongyu Wang,Yang Qin,Hao Ruan,Xuyang Zou
The nanosheet MFI zeolite synthesized with a short b-axis length exhibits broad potential for industrial applications due to its ability to facilitate mass transfer through the large straight-through channel along the b-axis. The current focus of research lies in the regulation of the zeolite crystal anisotropic growth rate through the addition of specific additives to the precursor liquid. The range of available additives, however, is limited, and their effects as well as potential mechanisms are still poorly understood. The impact of incorporating ten mononitrogen compounds into the gel on crystal growth was investigated. The influence of the N-containing compounds (functional group, C/N ratio, electrostatic potential of N atoms, and compound concentration) and growth time on crystal size was analyzed. N,N-dimethylformamide (DMF) and N-methylformamide (NMF) were revealed as potential inducers of the nanosheet zeolite. Herein, the effect of DMF on the nonclassical growth of the nanosheet zeolite is unveiled within crystallization engineering. The effects of various synthetic parameters on the DMF-assisted synthesis of nanosheet zeolites were also investigated. It is revealed that DMF plays a role in accelerating crystal growth and in regulating anisotropic crystal growth. This strategy can be extended to the synthesis of different heteroatomic nanosheet zeolites (such as Al-MFI, Fe-MFI, and Ti-MFI), and it is suitable for different types of silicon and metal sources. This study presents a straightforward strategy for the systematic and precise design and synthesis of nanosheet MFI zeolites, which exhibits significant potential for industrial utilization.
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