Nature Communications
·
2026
·
IF 18.1
Lei Ying,Chen Chao,Zhan Xu,Xie Mingshu,Wang Ying,Li Hao,Zhang Jiale,Liu Ping
Animals integrate internal states to guide survival-critical decisions, but whether and how intestinal bacteria influence this process by interacting with host metabolic cues remains unclear. Here we show that the intestinal pathogen P. aeruginosa overrides host decision-making in fasted C. elegans by modulating central serotonin (5-HT) signaling. Fasting promotes risk-taking by activating an intestinal energy-sensing pathway that induces the chemoreceptor SRI-36 in ADF 5-HT neurons, sensitizing ADF to food odors and triggering moderate 5-HT release that drives food attraction despite risk. In contrast, intestinal P. aeruginosa reverses this strategy by activating a distinct immune-brain axis that further amplifies SRI-36 expression and ADF sensitivity, leading to excessive 5-HT release that suppresses food attraction and prioritizes safety. These findings reveal a gut-to-brain mechanism by which metabolic and immune signals converge on central 5-HT to reshape behavioral strategies.
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PubMed
高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
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2026
·
IF 3.5
Zuliang Wang,Aotian Gu,Chunhui Gong,Xiqing Xu,Peng Wang,Yi Yang
This work describes the synthesis of a ZrP–C composite adsorbent using MOF-808 as a template via one-step, high-temperature carbonization. The adsorption performance of ZrP–C material toward fluoride ions was investigated as a function of time, solution concentration, temperature, pH, and coexisting anions. After 3 h, the ZrP–C-3 adsorbent achieved saturation in fluoride uptake, demonstrating a final uptake of 37 mg/g at equilibrium. Fit the adsorption process using kinetic and isothermal adsorption models. The study revealed that adsorption was dominated by monolayer chemical adsorption. Adsorption was found to be endothermic, according to thermodynamic studies, with higher temperatures favoring increased uptake. Combined XPS, XRD, and FT-IR studies revealed that ion exchange, surface complexation, and electrostatic interactions jointly governed fluoride removal. For low-concentration fluoride-containing water bodies, typically those with concentrations below 20 mg/L, adding an appropriate amount of adsorbent could effectively reduce the wastewater concentration to meet national standards. These results highlight the strong potential of ZrP–C-3 for practical applications in fluoride removal from wastewater.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Mengyao Zhang,Peng Miao,Haonan Zhang,Kaiwang Lu,Weixing Chen,Jinjin Dang,Yaozu Liao,Jie Kong
With the rapid development of electronic technology, electromagnetic pollution and thermal issues are increasingly exacerbating, particularly those enabling microwave-infrared compatibility. However, the integration of electromagnetic protection and thermal management remains a pivotal challenge. This study focuses on the multifunctional compatibility of microwave absorption and infrared stealth, addressing the critical challenge of integrating electromagnetic protection with thermal management for radar-infrared composite detection scenarios. In this work, accompanied by a high-temperature pyrolysis process, three-dimensional conductive network Fe 3 C/C-SiCN (3D Fe 3 C/C-SiCN) composite fibers with microwave absorption and low infrared emissivity were designed and prepared via the electrospinning technique. The Fe 3 C/C-SiCN fibers achieve broadband absorption and low infrared emissivity, an integrated advantage distinguishing them from traditional single-function materials. Microwave absorption and low infrared emissivity by precisely controlling the carbonization temperature, achieving a reflection loss (RL) of −25.11 dB at 1.58 mm, an effective absorption bandwidth (EAB) of 4.72 GHz, and stable long-wave infrared (LWIR) emissivity of 0.51 (at 50 °C) in 8–14 μm with a loading of 30% under a temperature of 700 °C. The synergistic effects of Fe 3 C-induced magnetic and interfacial polarization losses, the conductive SiCN-derived carbon network, and the thermally insulating 3D porous structure with low LWIR emissivity result in outstanding multifunctional performance. Fe 3 C/C-SiCN composite fibers would hold significant importance in the fields of electromagnetic protection, offering a novel solution for multifunctional electromagnetic protection beyond conventional single-band absorbers.
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高影响因子
CERAMICS INTERNATIONAL
·
2018
·Vol. 44
·期 7
·8550-8555
·
IF 3.057
Jing Zhang,Yanjing Li,Tingting Gao,Xuefeng Sun,Pei Cao,Guowei Zhou
In this study, flower-shaped TiO 2 /C embedded with fish-scale-like MoS 2 (TiO 2 /C/MoS 2 ) microspheres were synthesized by impregnating MoS 2 into the interspace of TiO 2 /C. The TiO 2 /C/MoS 2 microspheres (diameter of 2–3 µm), which are composed of several homogeneous flake-shaped petals, were then applied as anode in lithium-ion batteries. MoS 2 has a fish-scale shape with size of approximately 10 nm. In addition, MoS 2 is connected to the TiO 2 petal surface. In the flower-shaped TiO 2 /C/MoS 2 microspheres, TiO 2 acts as backbone for MoS 2 that can effectively minimize the strain of volume changes. The fish-scale-like MoS 2 can provide more active sites for reactions. The flower-shaped TiO 2 /C/MoS 2 electrode exhibits a discharge capacity of 621 mA h g −1 at 100 mA g −1 after 100 cycles, which is much higher than that of TiO 2 /C electrode (291 mA h g −1 ) and pure MoS 2 electrode (160 mA h g −1 ). Compared with TiO 2 /C and pure MoS 2 , the structural and compositional features of the TiO 2 /C/MoS 2 microspheres enhance the specific capacity and cycling stability.
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JOURNAL OF SUPERCRITICAL FLUIDS
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2024
·
IF 3.4
Jianqiao Yang,Yining Ding,Fen Zhao,Shuzhong Wang,Yanhui Li,Donghai Xu
In this study, a Cr coating was fabricated on Ni-based alloys to prevent under-deposit corrosion. The effect of salt deposition on the structural integrity of the Cr coating in SCW environment with/without oxygen was investigated. Results show that the Cr coating kept its integrity after exposure in SCW environment, successfully avoided the metallic ions leaching from Ni-based alloys. The structure of the oxide layer after exposure is a thin Fe 2 O 3 or FeCr 2 O 4 layer and a Cr 2 O 3 layer. The oxidation rate of the Cr coating decreased to one third of the sample after exposure in the same environment without salt deposit layer, indicating that the inward mass-transfer of oxygen to the alloy surface was inhibited by the salt deposit layer. The volume expansion of the sample due to the growth of Cr oxide layer was restrained by the salt deposit layer, forming a growth stress in the coating.
研究领域:
材料科学
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腐蚀科学
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高温材料学
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表面工程
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能源材料
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化学工程
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高影响因子
APPLIED SURFACE SCIENCE
·
2010
·Vol. 257
·期 9
·3920-3923
·
IF 1.616
Hongxu Guo,Jianhua Chen,Wen Weng,Shunxing Li
A visible light-driven photocatalyst, C-doped Zn 3 (OH) 2 V 2 O 7 , prepared by a hydrothermal method was studied. The as-prepared catalyst was characterized by SEM, XRD , DRS, and XPS , and exhibited efficient photocatalytic activity in the degradation of methylene blue (MB) under visible-light irradiation. Besides decoloring, the decomposition of MB was also observed, further demonstrating the performance of the photocatalyst. The carbon existing on the surface of Zn 3 (OH) 2 V 2 O 7 nanorods was free and in carbide form. Dye degradation followed first-order kinetics, and was explained on the basis of the Langmuir–Hinshelwood mechanism.
研究领域:
材料化学
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光催化
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纳米材料
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环境化学
·
无机合成
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2018
·
IF 3.779
Yunzhao Liu,Xiaowei Chi,Qi Han,Yuexiu Du,Jianhua Yang,Yu Liu
Sodium–oxygen (Na−O 2 ) batteries are being extensively studied because of their higher energy efficiency and lower cost compared to those of lithium–oxygen (Li–O 2 ) batteries. However, highly efficient and durable cathode catalysts are very limited, thus considerably hindering the application of Na–O 2 batteries. Herein, a vertically self-standing C@NiCo 2 O 4 nanoneedle arrays (C@NiCo 2 O 4 -NAs) have been delicately designed and fabricated by a facile hydrothermal method . The NiCo 2 O 4 nanoneedles are in-situ grown on the carbon paper , forming an unique urchin-like structure, which is directly used to Na–O 2 batteries as a self-standing and binder-free cathode for the first time. Under a current density of 50 mA g −1 , the Na–O 2 battery containing C@NiCo 2 O 4 -NAs cathode shows a high initial discharge capacity of 6500 mAh g −1 (based on NiCo 2 O 4 material mass) and low over-potential of 0.6 V due to the numerous catalytic sites and high electron mobility of C@NiCo 2 O 4 -NAs. SEM, XPS and FTIR tests have confirmed the formation of thin film-like Na 2 O 2 discharge product on the surface and gaps of NiCo 2 O 4 nanoneedles, and the special film-like structure can facilitate the decomposition of Na 2 O 2 in the subsequent charging process and reduce the over-potential notably. Meanwhile, the robust urchin-like structure of C@NiCo 2 O 4 -NAs renders the Na–O 2 battery a high cyclic stability up to 120 cycles when the specific capacity is limited to be 800 mAh g −1 .
研究领域:
储能
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材料科学
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电化学
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纳米材料
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2026
·
IF 6.3
Liying Pan,Qiu Zhang,Xueyue Lyu,Chenyang Zhang,Xinrui Wang,Jiawei Qi,Guangdong Zhao
Addressing the challenges associated with noise pollution problem necessitates the development of composite materials exhibiting both sound absorption and fire resistance under extreme environmental conditions. Conventional foam materials are limited by inadequate heat resistance, insufficient moisture resistance, and suboptimal functionality, rendering them unsuitable for such harsh environments. A new SiO 2 /C/SiBOC ceramic matrix porous sound-absorbing material was fabricated through a combination of sol-gel process, electrospinning, and organic impregnation techniques. Polyurethane foam (PUF) served as a template to establish a porous structure, while the SiBOC ceramic matrix conferred high-temperature resistance, and SiO 2 /C fiber reinforced the mechanical properties. Compared to traditional sound-absorbing materials, the developed composite demonstrates efficient sound absorption at low frequencies (NRC = 0.46) and across a broad frequency range (25–6500 Hz, α > 0.8). Additionally, it exhibits excellent thermal stability at elevated temperatures (up to 1400 °C), low thermal conductivity at room temperature (0.03463 W/m·K), high compressive strength (2.21 MPa), superior moisture resistance (contact angle θ = 101.4°), and a lightweight structure. This study contributes by proposing and validating a new design concept for porous ceramic composites, which can simultaneously balance acoustic, thermal, and mechanical properties as well as moisture resistance, effectively filling the gap in application areas of existing material systems.
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高影响因子
Advanced Composites and Hybrid Materials
·
2026
·
IF 15.5
Yang Cao,Luo Jialiang,Wang Yue,Xue Yiqing,Liu Guigao,Lu Zhehong,Wang Suwei,Jiang Wei
Rational microstructure design and compositional regulation have emerged as effective pathways to enhance electromagnetic wave (EMW) absorption, However, simultaneously achieving strong absorption, broad bandwidth, thin thickness and low filler loading remains challenging. Herein, three-dimensional hierarchical heterostructures comprising amorphous carbon-wrapped magnetite supported on flower-like reduced graphene oxide (Fe₃O₄@C/FRGO) was constructed through spray-drying assembly, spatially confined solvothermal crystallization, and defect-modulated carbonization. By tailoring the reduction degree of FRGO and tuning ferrite composition through thermal treatment, the dielectric-magnetic properties and interfacial interactions are precisely regulated. With merely ≈ 3.26 wt% incorporation of FRGO, the optimized composite exhibits a minimum reflection loss (RL min ) of -66.29 dB at 1.94 mm (20 wt% filler) and a broad effective absorption bandwidth (EAB) of 6.60 GHz (11.30–17.90 GHz) at 2.73 mm (30 wt% filler). This exceptional performance is attributed to the engineered heterointerfaces that facilitate multi-path energy dissipation via magneto–dielectric coupling optimized impedance matching, intensive interfacial polarization from abundant hierarchical architectures and the flower-like structure induced multiple scatterings. This study highlights the pivotal role of interfacial engineering in heterostructured absorbers and offers a design paradigm for high-performance EMW-absorbing materials through coordinated component–structure modulation. Graphical abstract The alternative text for this image may have been generated using AI.
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高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Nana Hou,Kaikai Wang,Yu Miao,Haiqian Zhang,Shuquan Chang
High-performance neutron shielding materials are essential for advanced nuclear energy technologies. However, it remains a challenge to integrate high thermal insulation and neutron shielding capabilities. In this work, mullite fiber mats with good thermal insulation properties and stability were used as the reinforcing skeleton. First, Gd2O3–Al2O3 binary aerogels were in situ synthesized on the skeleton via the sol–gel and ambient pressure drying method. Subsequently, the organic precursor derivatives in the aerogel were converted into carbon through high-temperature calcination, thereby obtaining Gd2O3–Al2O3–C ternary aerogel/mullite fiber composites. Benefiting from the effective suppression of heat transfer by the micronano pores and the high neutron absorption capability of Gd2O3, the as-prepared composites achieved high-efficiency synergistic thermal insulation and neutron shielding. At a thickness of 10 mm, the composites achieved a thermal conductivity of 0.041 W/(m·K) and a thermal neutron shielding efficiency of 88.15%. This provides a novel strategy for the design and development of multifunctional protective materials for thermal insulation and radiation shielding in the field of nuclear energy.
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PubMed
高影响因子
KOREAN JOURNAL OF CHEMICAL ENGINEERING
·
2026
·
IF 3.4
Wang Xiaoqi,Yang Pengwei,Yu Linzhu,Jiang Haoxuan,Ma Jingxiang,Ma Xiangshuai,Ma Shuangchen
Electrochemical nitrogen reduction reaction (eN2RR) is a highly promising approach for ammonia synthesis under normal temperature and pressure conditions. However, its practical application is limited by the low activity and selectivity of the catalysts. In this study, a series of Fe-MOFs materials were prepared by hydrothermal method, and further sintered to obtain Fe@C materials. The electrocatalytic performance of these materials in eN2RR was systematically investigated. The results showed that MIL-53(Fe)-2 exhibited excellent catalytic activity at -0.4 V vs. RHE, with an ammonia production rate of 1.443 µg·h⁻¹·mg⁻¹ and a Faradaic efficiency of 5.972%. In contrast, the Fe@C material derived from MIL-53(Fe)-1, although having rapid activation characteristics within a narrow potential window, did not perform as well as the former. This work provides a new material strategy and experimental basis for the design of iron-based eN2RR catalysts.
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高影响因子
GEOPHYSICAL RESEARCH LETTERS
·
2026
·Vol. 53
·期 14
·e2026GL122763
·
IF 5
Yuanjing Li,Liangliang Zhang,Fabin Pan,Xiaojing Lai,Xiang Wu,Feng Zhu
Mercury is one of the few terrestrial planets in the solar system with a magnetic field, yet the energy source to power its core dynamo remains unclear to date. Si, C, and possibly H are the top candidate light elements for its liquid core. Here, we showed experimentally that Si, C, and H in Fe-Si-C and Fe-Si-C-H liquids share a simultaneous solubility at 9–21 GPa, 1,400°C–2,200°C, and this solubility decreases with decreasing temperature. When exceeding the simultaneous solubility, light elements will exsolve from the Fe melt as elemental phases such as diamond, graphite, silicon, and H 2 . We infer that if Mercury had an early liquid core primarily composed of saturated Fe-Si-C-(H) liquid, subsequent cooling would lead to continuous light element exsolution in its liquid core. The gravitational potential released by the exsolved light elements can drive the compositional convection and power its long-term core dynamo.
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