PROGRESS IN ORGANIC COATINGS
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2025
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IF 7.3
Wanting Li,Suyun Liu,Hu Liu,Zhijun Dong,Rui Liu,Fuhui Wang,Li Liu
To address the limitations of traditional organic coatings low thermal conductivity and inadequate thermal management effect, this study developed novel thermally conductive phase change anticorrosion coatings (PS-x/EP) based on paraffin@silica (Pn@SiO 2 ) microcapsules. The Pn@SiO 2 microcapsules were prepared by interfacial polymerization with the optimal preparation parameters identified, high encapsulation efficiency (E = 85.53 %), phase change enthalpy (ΔH m = 154.93 J/g) and high thermal conductivity (0.355 W/ (m.K)) were obtained. The thermal conductivity of the composite coatings was increased by up to 54.9 % compared to the epoxy coating (EP) through local thermal conduction pathways formed by the Pn@SiO 2 microcapsules. Moreover, the phase transition of paraffin (Pn) effectively buffered temperature fluctuation and reduced temperature of the coatings. Electrochemical impedance spectroscopy (EIS) and salt spray test results demonstrated that the composite coatings containing within 20 % filler-maintained superior anti-corrosion performance, with |Z| 0.01 Hz of the PS-1/EP (5 %) coating maintained 2.15 × 10 9 Ω∙cm 2 after 30-days immersion in 3.5 % NaCl solution. This work provides a new strategy for the development of thermally conductive anti-corrosion coatings that with efficient thermal management and anticorrosion properties, offering potential for applications requiring dual-functional regulation.
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高影响因子
FUEL
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2025
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IF 7.5
Renjie Yang,Genmao Guo,Pengfei Chen,Yang Yang,Fangming Jin
Cellulosic biomass, as the most abundant renewable resource on Earth, holds great potential for achieving carbon neutrality through efficient valorization, where its hydrolysis to glucose represents a critical initial step. Conventional methods relying on homogeneous acids face limitations such as poor catalyst recycling and significant environmental issues. Carbon-based solid acids (CSAs) for cellulose hydrolysis have emerged as promising alternative, yet, their synthesis often requires high-temperature calcination to construct stable aromatic frameworks, leading to complex and energy-intensive processes. In this study, we propose a novel approach of utilizing the inherent aromatic structure of lignite for synthesizing lignite-derived solid acids (LSAs). We found that lignite was successfully sulfonated directly at low temperature without prior calcination. The synthesized LSAs which possess abundant sulfonic and weak acid sites, proved rapid and efficient hydrolysis of cellulose, resulting in high glucose yield of 57.4 % in just 45 min at 190 °C. In situ Fourier-transform infrared (FTIR) analysis further revealed the weakening of hydrogen bonds and cleavage of glycosidic bonds in cellulose facilitated by LSAs. This work provides a sustainable and low-carbon way for the integrated valorization of lignite and cellulosic biomass.
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高影响因子
FUEL
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2025
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IF 7.5
Xiaoli Zhang,Yimin Wang,Li Cui,Yuewen Chen,Xiya Zhang,Yihu Ke,Zhen Yuan,Hai Liu,Zhile Xiong
The selective oxidation of glycerol to dihydroxyacetone (DHA) is an essential route to effectively utilize the by-product glycerol of biodiesel, but the difficulty in balancing the activity and recycling stability of the catalyst severely limits the practical application of this process. Herein, we utilize the morphology engineering strategy of Au-loaded Cu-Zn composite oxide catalyst to optimize the catalytic performance. By regulating the calcination temperature, the Cu 0.1 Zn 0.9 O-T supports with morphologies such as microrod clusters, microrods, microspheres and yolk shells are obtained, and a series of Au/Cu 0.1 Zn 0.9 O-T catalysts are synthesized by loading Au NPs prepared through the plant-mediated method. The glycerol oxidation experiments reveal that catalyst morphology exerts a significant influence on efficacy. Among the tested catalysts, the microrod-structured Au/Cu 0.1 Zn 0.9 O MR exhibited the best performance, achieving complete glycerol conversion (100 %) and a DHA selectivity of 82.3 %. Particularly, Au/Cu 0.1 Zn 0.9 O MR exhibits excellent cycling stability that outshines most current catalysts, while maintaining 68.8% glycerol conversion and 78.2 % DHA selectivity after five runs. The underlying mechanism of the influence of catalyst morphology on the glycerol conversion performance is further revealed by a series of characterizations and density functional theory calculations.
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高影响因子
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES
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2025
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IF 1.8
Hai-Wen Tang,Jin-Jin Jiang,Liu-Si Yu,Hong-Lin Yu,Yun-Qian Zhong,Li-Mei Yu,Su-Jun Wang,Huan Zhang
This study presents a dual-carbon modified LiMn0.6Fe0.4PO4 cathode (LMFP/SWNT/C) through the combined integration of amorphous carbon and single-walled carbon nanotubes (SWNTs). The composite was synthesized via a solvothermal approach followed by carbonization, forming a homogeneous conductive network with enhanced graphitization (IG/ID ratio = 3.24–4.24 versus 0.98–0.99 for LMFP/C). Electrochemical characterization revealed superior performance, including a high discharge capacity of 160.8 mAh g−1 at 0.1C and excellent cycling stability (124.9 mAh g−1 with 92.6% capacity retention after 280 cycles at 1C). In-situ electrochemical impedance spectroscopy (EIS) coupled with distribution of relaxation times (DRT) analysis indicated that the addition of SWNTs could improve the electronic conductivity. These results demonstrate the effectiveness of hybrid carbon architectures for optimizing LMFP cathode materials.
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高影响因子
JOURNAL OF THE TEXTILE INSTITUTE
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2025
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IF 1.5
Fei Yin,He Li,Xinxin Zhang,Roman A. Surmenev,Jianyong Yu,Shichao Zhang
Complex-component oily aerosols are more harmful to health than solid particulates, but current filtering materials are ineffective against high-temperature liquid-phase contaminants, highlighting the need for better purification methods. Herein, polyimide (PI) electrospun nanofiber membranes with spindle-bead structures and electret treatment are developed. The electret in nanofiber membranes captures oily aerosols, while spindle-bead structures create a Laplace pressure gradient that directs oil droplets from fibers to spindle nodes, enabling droplet detachment. The nanofiber filter membranes show stable surface potential (2.05 kV), and superior lipophilicity (dioctyl sebacate [DEHS] wetting time of 6 s), which enable the membranes to achieve efficient filtration of oily aerosols (>99.8%) and low-pressure resistance (∼68 Pa). Moreover, the membranes demonstrate exceptional thermal stability, retaining structural integrity and mechanical properties at 200 °C, making them ideal for high-temperature oily aerosol filtration. This strategy opens up a pathway for the design of high-temperature oily aerosol filtration materials.
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高影响因子
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES
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2025
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IF 1.8
Chuan Long,Feifei Fang,Jingjing Wang,Bowen Xia,Chenyi Shao,Yinglong Yu,Yanfei Wang
Platinum-based catalysts are the best performing hydrogen evolution reaction (HER) catalysts in proton exchange membrane water electrolysis (PEMWE) for producing green hydrogen. Thus, developing Pt-based catalysts with high HER activity and stability is critical to promote the widespread application of PEMWE. Here, A series of Pt-based catalysts on different modified-carbon supports (Vulcan XC-72, Vulcan XC-72R, Ketjenblack EC-300J, and Ketjenblack EC-600JD) were prepared via a facile and efficient urea-assisted one-pot synthetic strategy. A systematic study and comparison with commercial catalysts were performed to elucidate the effect of the support on the catalyst properties through comprehensive physicochemical characterization and electrochemical evaluation. The resulting Pt/C600J catalyst exhibits excellent activity and stability for acidic hydrogen evolution reaction, which achieves an overpotential of 10 mV at 10 mA/cm2 and 18 mV after 20,000 CV. Notably, the Pt/C600J exhibited higher performance than commercial catalysts in a proton exchange membrane water electrolysis device, with a voltage of 1.79 V at a current density of 2 A/cm2. The device operated stably at 2 A/cm2 for 300 h without significant voltage increase, which is promising for PEMWE applications. These results provide guidance for the selection of carbon support for Pt-based catalysts and the development of advanced water electrolysis catalysts.
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高影响因子
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES
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2025
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IF 1.8
Zekun Li,Bo Meng
Conventional methods of preparing carbon nano in most cases prepare worm-like carbon nanomaterials in a single dispersed arrangement, agglomerated into a spherical worm-like carbon nano is more special and uncommon. Tetradecyl trimethyl ammonium bromide (TTAB) and potassium chloride were used as raw materials, and sphericity of worm-like carbon nano could be prepared by in situ carbonization method. This particular morphology is called worm-like carbon nanospheres. The yield of worm-like carbon nanospheres was calculated to be about 5‰ using tetradecyl trimethyl ammonium bromide as the carbon source. A series of characterization means such as SEM, FT-IR, Raman, XRD and XPS were used for characterization. The characterization results show that the size of worm-like carbon nanospheres is between 300 and 600 nm, relatively dispersed, and the aggregation phenomenon is not obvious. The structure of worm-like carbon nanospheres has some defects with graphitization degree ID/IG = 0.8. About the formation mechanism of worm-like carbon nanospheres is explained accordingly in the existing cases.
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高影响因子
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES
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2025
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IF 1.8
Baojin Yang,Shimin Dang,Haichao Li
In this study, carbon nanorods (CNRs) were synthesized via a surfactant@salt self-assembly strategy, overcoming the limitations of conventional carbon nanomaterials in morphology control. Sodium dodecylbenzenesulfonate (SDBS) served as the carbon precursor, while sodium chloride (NaCl) acted as a structural spacer to guide nanorod formation. The synthesized SDBS@NaCl CNRs were systematically characterized by SEM, XPS, FT-IR, XRD, and Raman spectroscopy. The results demonstrate that amorphous carbon nanorods with a partially graphitized ordered structure have been successfully synthesized. The CNRs feature dominant oxygen-containing functional groups (C–O, C = O), uniform diameters (∼60 nm), and tunable lengths (1200 ± 400 nm), achieving an exceptional L/D ratio of up to 30. This work not only validates the efficacy of the salt-mediated self-assembly approach but also underscores its potential for designing advanced carbon nanostructures with tailored dimensions and surface properties, paving the way for multifunctional applications in energy storage and catalysis.
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高影响因子
JOURNAL OF THE TEXTILE INSTITUTE
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2025
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IF 1.5
Yameng Xiao,Hualei Liu,Chen Sun,Xinran Han,Roman A. Surmenev,Xia Yin,Yi-Tao Liu,Jianyong Yu,Bin Ding
Porous carbon materials are widely used in adsorption and catalysis due to their highly adaptable pore structures and high specific surface areas. Nevertheless, porous carbon materials still face the bottleneck problem of mechanical strength and flexibility. Herein, we construct a porous carbon nanofiber membrane composed of beaded fibers and traditional straight fibers, demonstrating exceptional flexibility and efficient formaldehyde adsorption performance. Specifically, we regulate polyacrylonitrile solutions with different concentrations via a dual-nozzle electrospinning technique, followed by using controllable pre-oxidation and carbonization progress, obtaining flexible carbon nanofiber material with a hierarchical micro/mesoporous and beaded network structure. The softness of porous carbon nanofiber membrane is comparable to nonwoven fabrics and significantly lower than tissue paper, and it goes through 1000 buckling cycles at 50% deformation without damage. Furthermore, dynamic impregnation with lysine endows materials with synergistic physical and chemical adsorption, making its formaldehyde adsorption capacity reached 3.44 mg/g under ambient conditions, which shows great performance improvement compared with unimpregnated materials (0.8 mg/g). In this sense, this material overcomes the traditional trade-off between rigidity and adsorption performance in carbon materials, offering a possible solution for indoor formaldehyde purification.
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高影响因子
COMBUSTION AND FLAME
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2025
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IF 6.2
Shubao Song,Jiankun Shao,Lin Zhang,Jiachen Sun,Cheng Wang,Jun Yi,Zhiqiang Gao,Jianli Feng
Acetone (CH 3 COCH 3 ) is a key intermediate and a representative oxygenated volatile organic compound (OVOC) relevant to biofuels, atmospheric chemistry, and advanced propulsion systems. In the current study, shock tube pyrolysis experiments for acetone/Ar mixtures were performed over the temperature range of 1300–1952 K at atmospheric pressure, utilizing laser absorption diagnostics at 4854 nm and 3175 nm to monitor the temporal evolution of carbon monoxide (CO) and methane (CH 4 ), respectively. In addition, ignition delay time (IDT) measurements were conducted in a shock tube for CH 3 COCH 3 /Ar/O₂ mixtures at three equivalence ratios ( φ = 0.5, 1.0, and 2.0) over the temperature range of 1274–1601 K and 1.0 atm. The CO time-history data provided direct constraints on the unimolecular decomposition reaction R1 (CH 3 COCH 3 (+M)=>CH 3 CO + CH 3 (+M)), yielding a rate constant of k R1 (1304–1952 K, 1.0 atm) = 9.0 × 10 13 exp (−66,500 cal/mol/ RT ) s⁻¹, with an uncertainty of +28.7 %/−28.2 %. Additionally, CH 4 time-histories and IDTs measurements combined with sensitivity analysis were employed to refine the H-abstraction reactions R2 (CH 3 COCH 3 + CH 3 <=>CH 3 COCH 2 + CH 4 ) and R3 (CH 3 COCH 3 + H<=>CH 3 COCH 2 + H 2 ), respectively. A detailed kinetic model of acetone consisting of 41 species and 284 reactions was developed based on the FFCM-1 framework and optimized skeletal sub-model of acetone with updated rate constants of R1, R2 and R3. Validation against a wide range of literature data, including IDTs, laminar flame speeds and speciation data from literature, demonstrates the robustness and accuracy of the optimized kinetic model. This work highlights the critical role of laser-based diagnostics in resolving key elementary reactions and illustrates the advantages of compact, well-calibrated kinetic models for high-temperature acetone combustion research.
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高影响因子
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
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2025
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IF 4.6
Mingming Dong,Shuyong Yang,Peng Zhou,Yue Gao,Anshun Wang,Shenghui Tu
The accumulation of antibiotics in aquatic ecosystems poses a serious threat to the environment and to human health. Tetracyclines (TC) account for a significant proportion of antibiotic residues worldwide. In order to overcome the limitations of conventional degradation methods, we created a three-component S-scheme heterojunction consisting of BiVO 4 /MWCNTs@NH 2 -UiO-66 (Zr) using a two-step solvothermal process. This synergistic integration utilises: (i) MWCNTs as electron transport bridges; (ii) NH 2 -UiO-66 (Zr) for high TC adsorption (surface area of 931.86 m 2 g −1 ); and (iii) BiVO 4 for visible light harvesting. This architecture broadens light absorption, reduces charge recombination and enables dual-pathway Reactive Oxygen Species (ROS) generation. Under visible light, the optimised catalyst achieves 95.2 % TC degradation within 90 min–7.73 times faster than pristine BiVO 4 (k = 0.02721 vs. 0.00352 L mg −1 ·min −1 ). Radical trapping and EPR analyses confirm ·O 2 − and h + as the dominant species, while LC-MS reveals three degradation pathways. With 85.3 % activity retention after five cycles, this work provides a blueprint for the design of efficient, antibiotic-mineralising photocatalysts.
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高影响因子
Journal of Energy Storage
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2025
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IF 9.8
Xuyeke Chen,Xuefeng Shao,Yuxiang Zhang,Binrui Wang,Yanping Yuan
The flexible thermal energy storage using supercooled phase change materials (PCMs) allows thermal energy storage lasting flexible periods up to months and release when heat is on demand. As an essential part of latent heat retrieval, the crystallization triggering techniques were not fully investigated. The present work deals with the bubbling-triggered crystallization. Special attention is paid to the gas flow rate and bubble size effects. Xylitol, as a familiar polyalcohol, is screened as an energy storage medium with persistent supercooling. It is found that the estimated diameters of primitive and detached bubbles show an overall increasing trend with gas flow rate and gas tube size. Bubbling-triggered crystallization behavior is concerned with the bubbling conditions. A full crystallization probability was obtained with a 5 mm gas tube among the parallel tests. The crystallization temperature seems independent of gas flow rate. Both the minimum average crystallization durations and bubbling induction durations were obtained with a gas flow rate of 500 ml/min. However, the performance of bubbling agitation is not acceptable due to the long induction duration and apparent standard deviations. Under the guidance of the secondary nucleation mechanism, a coupled technique of bubbling with seeding was introduced to sufficiently trigger crystallization. The required induction duration is only 21 % of that with bubbling alone. The triggering performance was also improved, indicated by the raised crystallization temperature and accelerated crystallization rate. The experiment reproduction was greatly improved as well. The obtained results help to understand the bubbling-triggered crystallization of supercooled PCMs and to guide the gas injector design of a flexible thermal energy storage system.
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高影响因子
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