JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
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2026
·
IF 7.1
Yong-hong Niu,Yuan Tian,Lifei Yang
Hydrogen-rich syngas was produced from co-gasification of CS and CG. • 4Ce-8Ni/C-CaO markedly enhanced H 2 formation and syngas quality. • The maximum H 2 content reached 59.71 mol%. • Ce promoted Ni dispersion, oxygen vacancy formation, and coke resistance. The catalytic co-gasification of agricultural residues and coal-derived solid wastes offers an industrially promising route for converting low-value carbon resources into hydrogen-rich syngas. In this study, a Ce-Ni/C-CaO composite catalyst was prepared by impregnation and applied to the steam-assisted co-gasification of corn stover (CS) and coal gangue (CG) in a two-stage fixed-bed system. The effects of metal loading, feedstock ratio, temperature, and steam flow rate were investigated, the structure-performance relationship of the catalyst was further examined using XRD, SEM/BET, TEM/STEM-EDS, XPS, H 2 -TPR and O 2 -TG analyses. Under the optimal conditions of CS:CG = 5:5, pyrolysis at 850 ℃, reforming at 900 ℃, and a steam flow rate of 1 mL/min, the 4Ce/8Ni-C/CaO catalyst achieved an H 2 content of 59.71 mol% and a total gas yield of 19.13 mmol/g and an H 2 /CO ratio of 5.22. Characterization results indicated that the Ce species regulated the distribution of surface oxygen species, enhanced oxygen mobility, promoted the Ce 4+ /Ce 3+ redox cycle, and influenced the evolution of catalyst pore structure during the reaction. Download: Download high-res image (221KB) Download: Download full-size image
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高影响因子
MICROCHEMICAL JOURNAL
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2026
·
IF 5.2
Haiyan Wu,Jianlei Wu,Nian Huang,Jean-François Masson,Haifeng Zhou,Wenjuan Zhou,Wei Lin,Guobin Liang
A sensitive ratiometric electrochemical strategy for MMC detection is developed. • Polythionine serves as an internal reference for improved response stability. • Ce-Ni-MOF/MWCNTs enhance interfacial electron transfer. • Molecular imprinting enables selective MMC recognition. • MMC detection is validated by UPLC-QTOF-MS in water samples. Mitomycin C (MMC) is a widely used antitumor antibiotic, and its rapid and selective detection is crucial for monitoring its occurrence in environmental water samples. In this work, a ratiometric electrochemical sensor was constructed by sequential modification of a bimetallic Ce-Ni-metal-organic framework (Ce-Ni-MOF)/multi-walled carbon nanotube (MWCNTs) composite, polythionine (pThi) and a molecularly imprinted polymer (MIP) on a glassy carbon electrode. The Ce-Ni-MOF/MWCNTs composite facilitated electron transfer, contributing to the enhanced sensitivity of the sensing platform. The pThi was electropolymerized onto the modified electrode surface to provide an internal reference signal, while the ratiometric response was achieved through two electrochemical channels, with the [Fe(CN)₆] 3−/4 − redox probe serving as the response signal and the pThi signal as the reference, enabling effective correction of measurement variations. Under optimized conditions, the sensor exhibited a linear response to MMC over the concentration range of 0.1–100 nM, with a low detection limit of 0.046 nM and a limit of quantification of 0.075 nM. Owing to the specific molecular recognition of the MIP layer and the internal reference function of pThi, the proposed sensor demonstrated satisfactory selectivity, repeatability, reproducibility and stability. Furthermore, the sensor was successfully applied to the determination of MMC in water samples, achieving recoveries of 87–112%. The analytical performance of the proposed sensor was further validated by comparison with the results obtained using ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UPLC-QTOF-MS). This work presents a reliable and sensitive ratiometric electrochemical sensing strategy and demonstrates its feasibility through a proof-of-concept study for MMC detection in environmental water samples. Download: Download high-res image (304KB) Download: Download full-size image
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2026
·
IF 4.6
Xiaobo Ma,Weibin Li
A new approach is proposed for in-situ growth of carbon nanotubes on the surface of ZIF-8 particles. • The double-layer carbon encasing effectively suppresses the volume expansion of silicon nanoparticles. • The silicon carbon composite exhibits excellent cycling performance for lithium-ion battery anodes. • Abundant CNT-containing carbon framework boosts conductivity and lithium ion diffusion kinetics. Silicon-based materials as anode materials for lithium-ion batteries, face critical challenges including significant volume expansion during charge/discharge cycles and low electronic conductivity. Carbon-coated silicon particles represent a promising approach, and their cycling stability falls short of the need in practical applications. Here, a novel method to in-situ synthesize dual-layered carbon-coated silicon nanoparticles rich in carbon nanotubes has been reported as an anode material for lithium-ion batteries. It exhibits outstanding lithium storage performance, maintaining a discharge capacity of 1007.1 mAh g −1 after 1000 charge/discharge cycles at current density of 0.5 A g −1 , demonstrating a capacity retention rate of 99.9%, while maintaining a low volumetric expansion rate of only 40% after 1000 cycles as compared to the value of 155% for the bare Si electrode investigated by the top-view digital photographs and cross-sectional SEM image. Even at 1 A g −1 high current density, the composite maintains a high reversible capacity of 705.4 mAh g −1 with 92.1% capacity retention rate after 1000 charge/discharge cycles. It is found that the better electric performance above is closely related with the carbon nanotubes outside the unique dual-layered carbon-coated silicon nanoparticles, which significantly enhances the electrode electrical conductivity and lithium-ion diffusion coefficient (≈10 −10 cm 2 s −1 ). This work provides a valuable technical route to develop silicon-based anode materials with high electrical conductivity and reactivity. Download: Download high-res image (143KB) Download: Download full-size image
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高影响因子
OPTICS AND LASER TECHNOLOGY
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2026
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IF 5.2
Liang Yang,Tiqun Wei,Zihao Han,Zhihao Jiang,Jianwei Dao,Run Hu
Traditional phosphor-in-glass (PiG) composites require high preparation temperatures, which can cause thermal degradation of phosphors. Therefore, comparative studies on glass systems were conducted to explore the feasibility of preparing high-performance PiG at lower temperatures. Through systematic comparison of various glass systems, an ultra-low melting tin fluorophosphate glass was selected as the matrix, enabling the successful preparation of full-spectrum daylight-like PiG at a significantly reduced temperature of 350 °C. This temperature is far lower than the processing temperatures required for tellurite or borosilicate glass systems. The mild preparation conditions effectively preserved the structural integrity of the incorporated RGB phosphors (green (Ba,Sr) 2 SiO 4 :Eu 2+ , blue BaMgAl 10 O 17 :Eu 2+ , and red CaAlSiN 3 :Eu 2+ ), as confirmed by XRD and SEM analyses, which showed uniform dispersion of phosphors in the glass matrix and minimal interfacial reactions. The white LED packaged with this PiG exhibited a continuous full spectrum covering 420–780 nm and excellent color rendering properties (R a = 92, R 9 = 92.2, R 13 = 92.7), with a spectral profile close to natural daylight, making it suitable for human-centric lighting. Furthermore, the PiG retained approximately 90% of its thermal stability at 423 K. By combining glass system comparison with low-temperature preparation techniques, this study achieved outstanding optical performance while significantly reducing the fabrication temperature, providing a viable material pathway for the development of full-spectrum daylight-like LEDs and their potential applications in health-conscious lighting.
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高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
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2026
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IF 9.2
Chuan Cao,Siyang Chang,Zhirong Sun,Jun Cui,Xiang Hu
Alloy catalysts have been recognized as one of the promising methodologies to modulate the electronic structure to generate ·OH. Although various alloy catalysts play an essential role in H 2 O 2 activation, systematic investigations conducted within a unified framework remain scarce. Here, three adjacent transition metals (Mn, Co, and Ni) were employed as dopants to construct a series of Fe 3 O 4 -FeM/C (M = Mn, Co and Ni) alloy catalysts, and their H 2 O 2 activation performance and underlying catalytic mechanisms were systematically investigated. Density functional theory analysis indicated that the alloy structure can form a built-in electric field within the catalyst, which can facilitate the migration of electrons from the catalyst interior to the exterior. Meanwhile, according to the bader charge analysis, the amount of charge transferred to the carbon shell follows the order: Mn (0.36 e − ) > Co (0.19 e − ) > Ni (0.01 e − ). This trend indicated that when Mn formed an alloy with Fe, it most effectively facilitated electron migration from the internal metal sites to the external carbon shell, thereby markedly enhancing the catalytic activation of H 2 O 2 . Therefore, the Fe 3 O 4 -FeM/C exhibited superior performance compared with the other electrodes, achieving a 92.0% degradation of tetracycline within 12 min. Furthermore, electron spin resonance tests combined with probe quantification verified that transition metals incorporation enhanced the production of ·OH species, among which the Mn-doped catalyst exhibited the most significant enhancement. This study elucidates the catalytic mechanism of alloy catalysts toward H 2 O 2 from an electronic transfer perspective, providing theoretical guidance for the reasonable design of highly active alloy catalysts.
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PubMed
高影响因子
MATERIALS & DESIGN
·
2026
·
IF 8.2
Yunxuan Huang,Xing Gong,Guotao Liang,Yanfeng Li,Kaiming Wang,Liping Yan,Huacheng Zhu,Yang Yang,Yanping Zhou
Microwave surpasses conventional heating in boosting dielectric loss of CoNi@C. • Magnetic loss contributes negligibly to the total microwave loss of CoNi@C. • GA|NLLS analysis unveils dominant role of electron injection from CoNi to C. • CoNi@C-based M 1 -D-M 2 absorber achieves 7.7–18.0 GHz bandwidth up to 60°. Developing microwave absorbing materials that integrate a wide effective absorption bandwidth (EAB) with superior angular and polarization stability is a key research direction in the field. In particular, MOF derived magnetic metal/carbon composites (MMOF-MM/C) that integrate both magnetic and electric loss mechanisms, have attracted widespread attention. To date, the role of the high content of magnetic metal in MMOF-MM/C for microwave absorption awaits systematic investigation. In this work, a microwave-assisted fast calcination strategy was proposed to synthesize well-dispersed, welded, homogenous CoNi@C-MW micro/nano hierarchical structure. Analysis of impedance matching ratios and attenuation constants reveals that the permeability of CoNi@C-MW contributes only minimally to microwave absorption in the 2.0–18.0 GHz frequency range. GA|NLLS fitting shows that CoNi metal enhances conduction and polarization losses in CoNi@C-MW, increasing polarization loss by nearly 50 % and conduction loss by up to three times. This is attributed to thicker, more graphitized carbon layers that facilitate electron injection from CoNi to carbon, and a well-dispersed, uniform particle structure that promotes heterogeneous interface polarization. Furthermore, a magnetic-dielectric-magnetic (M 1 –D–M 2 ) sandwich-structured absorber was further constructed, delivering an EAB covering 7.7–18.0 GHz at an angular stability up to 60° under both TE and TM polarizations. Download: Download high-res image (211KB) Download: Download full-size image
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高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
·
2026
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IF 9.9
Tiantian Li,Weipeng Huang,Yi Li,Lijuan Zhu,Ce Liang
Homologous interfacial engineering enables atomic anchoring of P-CNPs onto C-Ti 3 C 2 T x via Ti-O-C covalent bonds. • Hierarchical architecture acts as wave confinement walls, inducing Maxwell-Wagner polarization and extended dissipation paths. • EMI SE reaches 75.44 dB at 4 wt% loading with absorption as the dominant shielding mechanism. • Composite achieves 215.4 MPa tensile strength, overcoming conductivity–mechanical integrity trade-off. Achieving a synergistic balance between electromagnetic interference (EMI) shielding and mechanical robustness in carbon fiber-reinforced polymers (CFRPs) remains a fundamental challenge due to the long-standing trade-off between electrical conductivity and mechanical integrity. Here, we report a homologous interfacial reinforcement strategy to engineer a hierarchical architecture via the atomic-scale anchoring of C-Ti 3 C 2 T X and polyimide/polydopamine-derived carbon nanoparticles (P-CNPs). The formation of Ti-O-C covalent bonds yields a continuous hybrid network that effectively suppresses MXene restacking. This hierarchical configuration acts as electromagnetic-wave confinement walls, inducing pronounced Maxwell-Wagner polarization and extending energy-dissipation pathways through multiple internal reflections. The composite achieves a high EMI shielding effectiveness (SE) of 75.44 dB at a low filler loading of 4 wt%, while maintaining an excellent tensile strength of 215.4 MPa. The homologous interfacial engineering strategy presented here offers a transformative route for simultaneously integrating mechanical robustness with absorption-enhanced EMI functionality, providing new design insights for integrated materials in aerospace and microelectronics. Download: Download high-res image (324KB) Download: Download full-size image
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高影响因子
JOURNAL OF POWER SOURCES
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2026
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IF 8.4
Bowen Li,Haidong Xie,Hui Tian,Haojie Xu,Kaiyi Chang,Li Zhang,Chang Li,Jiao Hou,Xinwei Wang,Beiping Wang,Hui Lu,Shaolin Yang,Chunping Hou
Silicon suboxides (SiO x ) are promising anodes for lithium-ion batteries, but their practical application is hindered by severe volume fluctuation and sluggish (de)lithiation kinetics. Herein, a hierarchical disproportionated-SiO x -based composite, D-SiO x @NC/C@CNTs/rGO-2, consisting of disproportionated SiO x (D-SiO x ) with in situ generated Si/SiO 2 domains, a nitrogen-doped carbon/carbon (NC/C) interphase, and an interconnected CNTs/rGO conductive framework, is constructed through thermal disproportionation, interphase engineering, and multidimensional conductive-network design. Thermal disproportionation induces the in situ formation of Si domains embedded in a SiO 2 buffering matrix, in which Si provides lithium-storage activity while SiO 2 alleviates volume variation and enhances structural stability. Meanwhile, a conformal nitrogen-doped carbon interphase mitigates chemo-mechanical stress and stabilizes the active interface, and the intertwined CNTs/rGO framework builds an efficient conductive network. As a result, the optimized anode delivers a reversible capacity of 876.4 mAh·g −1 after 500 cycles at 0.5 A g −1 , with a capacity retention of 83.7%, while electrode swelling is suppressed to ≈52% versus ≈159% for bare D-SiO x . Operando electrochemical impedance spectroscopy combined with distribution of relaxation times reveals reduced interfacial polarization and faster apparent Li + transport. A pre-lithiated LFP||D-SiO x @NC/C@CNTs/rGO-2 full cell also shows an initial Coulombic efficiency of 96.15% and stable cycling over 200 cycles.
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高影响因子
Science China-Life Sciences
·
2026
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IF 9.6
Cai Xia,Liu Yike,Li Jialuo,Zhao Zhuoran,Yao Xinyu,Zhai Zhihao,Liucong Mingmei,Liu Yujie,Wang Xue,Mochizuki Kazufumi,Tian Miao
Tetrahymena is a well-established ciliate model organism, known for its nuclear dualism and unique mechanism for transposon defense, wherein transposons are kept within the highly heterochromatinized micronucleus (MIC), which is transcriptionally inert except during meiosis. The discovery of preferential transcription in the meiotic MIC at regions enriched with transposons and the identification of MIC transcription regulatory proteins emphasize the necessity to elucidate the underlying mechanisms driving this process. In this study, we demonstrate that G/C-rich tracts are overrepresented in meiotic non-coding RNA (ncRNA) transcription regions and that RNA polymerase II (Pol II) is highly enriched at and around these tracts. Further analysis revealed that Pol II’s association with G/C-rich tracts is not abolished in cells lacking Rib1, a Mediator complex-associated protein essential for MIC ncRNA biogenesis. Nevertheless, in the absence of Rib1, Pol II showed abnormal association with the meiotic MIC chromatin, suggesting that Rib1 is critical for maintaining Pol II’s binding specificity. Through Rib1 truncation analysis, we found that the intrinsically disordered region, which contains putative phase-separating peptides, is crucial for its function. Disruption of phase-separation, either by deleting these peptides or by treating cells with a phase-separation disruption reagent, leads to aberrant localization of both Rib1 and Pol II on the MIC chromatin, implicating that Rib1 likely facilitates the MIC ncRNA transcription via phase-separation.
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PubMed
高影响因子
Surface Science and Technology
·
2026
·Vol. 4
·期 1
·29
·
IF 7
Huang Shuang,Yu Zhiyun,Mao Ronghui,Huang Du,Wei Xuanchen,Liang Tianquan
This work investigates the growing behavior of reaction layers on TiO 2 -doped Al 2 O 3 ceramics in molten CMAS at 1250 °C. Initial reactions rapidly form Ca 2 MgSi 2 O 7 and CaAl 2 Si 2 O 8 phases. A thin-dense CaAl 2 Si 2 O 8 reaction layer (DRL) forms within 15 min, evolving into a double-layered structure (outer CaAl 2 Si 2 O 8 / inner MgAl 2 O 4 ) after 4 h. The reaction layer thickening follows the parabolic law, with a rate that decreases significantly after 4 h as the DRL plays a positive role in inhibiting the diffusion of Si 4+ , Al 3+ , and less effect on the, Mg 2+ and Ca 2+ . Crucially, the study elucidates the mechanism by which TiO 2 modulates the growing kinetics: TiO 2 enhances the chemical driving force for Ca 2+ infiltration through the DRL. This accelerated diffusion leads to the precipitation of a CaTiO 3 zone beneath the DRL, which alters the local compositional gradients and sustains the reaction layer growth. Kinetic models describing the layer thickness over time were established, and the underlying corrosion mechanisms were analyzed.
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高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2026
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IF 8.2
Bingzhu Wang,Wenhao Dou,Huan Guo,Jianjun Sha
To address the challenges of achieving densification at lower sintering temperatures and precise control over the microstructure in UHTCs-SiC, a novel reactive hot-pressing sintering technology was proposed to realize the low-temperature densification of fine and uniform (Zr,Ti)B 2 -(Zr,Ti)C-SiC ceramics, as well as the accurate tailoring of phase compositions. The intrinsic relationship between phase compositions, microstructural tailoring and mechanical performance was revealed. As the molar ratio of (Zr,Ti)C/(Zr,Ti)B 2 decreases, rod-shaped microstructural units (ultra-high temperature borides) progressively develop within the ceramic. These elongated features play a beneficial role in deflecting propagating cracks. When coupled with equiaxed (Zr,Ti)C grains, this combination allows the synergistic strengthening and toughening mechanisms to be fully activated, so the (Zr,Ti)B 2 -(Zr,Ti)C-SiC ceramics with a (Zr,Ti)C/(Zr,Ti)B 2 molar ratio of 1:2 exhibit a flexural strength of 479.2 MPa and a fracture toughness of 3.84 MPa·m 1/2 , which are 62.2 % and 40.7 % higher than those of (Zr,Ti)C-SiC ceramics, respectively.
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高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·123598
·
IF 7.5
Di Li,Huimin Zhu,Yuan Zhang,Shaofei Yang,Ruiyu Zhu,Jiaoe Dang,Fang Song,Jun Zhou
The escalating global energy crisis and environmental pollution has drawn increasing attention. As a green and sustainable alternative, photocatalytic H 2 O 2 synthesis has attracted widespread interest. In this study, we has designed a novel exciton-regulated photocatalyst (Bi@g-C 3 N 4 /ST-NS) by integrating bismuth-doped graphitic carbon nitride with porphyrin-based supramolecular nanostructures (ST-NS). The composite was synthesized through a sequential process involving solvothermal reaction, high-temperature calcination, and solution-phase self-assembly. We systematically investigated its crystal structure, photoelectronic properties, and the mechanistic basis of photocatalytic H 2 O 2 production. Characterization results confirmed the successful incorporation of Bi single atoms into the sixfold cavities of g-C 3 N 4 , forming a p-n heterojunction with ST-NS while preserving the crystallinity of the host matrix. The built-in interfacial electric field not only promoted efficient charge separation but also extended the visible-light absorption range and prolonged the carrier lifetime. Performance evaluations revealed that Bi@g-C 3 N 4 /ST-NS exhibited significantly enhanced H 2 O 2 generation activity compared to pristine Bi@g-C 3 N 4 , with optimal performance achieved at a 10:1 mass ratio. Under visible-light irradiation, the H 2 O 2 concentration reached 1134 μM in the reaction solution, representing a 2.5-fold improvement over Bi@g-C 3 N 4 . Mechanistic studies indicated that the heterojunction facilitated efficient intersystem crossing from singlet to triplet excitons. Rather than following the conventional superoxide radical (·O 2 - ) pathway, these triplet excitons activated ground-state oxygen to generate singlet oxygen ( 1 O 2 ) via resonance energy transfer. The subsequent highly selective two-electron reduction of 1 O 2 yielded H 2 O 2 , effectively circumventing the high-energy barrier steps associated with traditional pathways. This work thus presented a promising strategy for the rational design of high-efficiency photocatalytic systems through exciton regulation.
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高影响因子
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