JOURNAL OF APPLIED POLYMER SCIENCE
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2026
·
IF 3.1
Jiehao Qu,Jicheng Li,Guang Yang,Nianzhao Gao,Xiangdong Liu
Poly(methyl methacrylate) (PMMA) possesses high optical transparency but suffers from insufficient mechanical strength. Most toughening methods compromise optical clarity, processability, or industrial scalability. Herein, we present a scalable toughening strategy based on copolymerization of methyl methacrylate (MMA) with 2-hydroxyethyl methacrylate (HEMA), combined with transesterification between their units. The resulting random MMA-co-HEMA copolymers retain excellent visible-light transmittance (above 90.0%, 5 mm) while achieving remarkable mechanical enhancements, including increases of 74% in tensile strength and 22% in impact strength compared with linear PMMA. Further studies reveal that the transesterification between HEMA and MMA units induces a lightly cross-linked network. This approach not only offers advantages in simplicity, cost-effectiveness, and compatibility with industrial processes such as casting molding, but also effectively prevents uncontrollable autoacceleration during bulk polymerization. These findings provide new insights for the designing of high-performance optical thermoplastics with promising potential in structural optical applications.
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Nanoscale
·
2025
·Vol. 17
·期 25
·15289-15300
·
IF 5.1
Yan Xin,Yunnian Ge,Ming Lei,Shen Cai,Chen Zhao,Huai Zhang,Huajun Tian
Zn powder anodes hold great promise for aqueous zinc-ion batteries (AZIBs) owing to their structural tunability, facile processability, and cost-effectiveness. However, their practical application is hindered by severe side reactions and uncontrolled dendrite formation, leading to rapid capacity degradation. Herein, we develop a Zn powder-based anode (ZnSn@ZP) with a Zn–Sn metal interface layer, fabricated via a simple electrodeposition strategy, to achieve uniform Zn deposition/stripping. The dense Zn–Sn interphase layer effectively mitigates anode corrosion, regulates nucleation, and suppresses dendritic growth, leading to remarkable electrochemical performance. The symmetric ZnSn@ZP cell exhibits exceptional cycling stability exceeding 1500 h at 1 mA cm−2 with an initial voltage hysteresis of 16.4 mV. The ZnSn@ZP//Cu asymmetric cell demonstrates superior average coulombic efficiency of 99.6% over 2500 cycles, indicating improved Zn deposition/stripping performance. Furthermore, the full cell assembled with the MnO2 cathode exhibits excellent cycling performance, maintaining stable cycling for 1800 cycles even at 1 A g−1 with negligible capacity decay. This work presents an effective, cost-effective and scalable interface engineering strategy, offering new insights for developing high-stability Zn powder-based anodes.
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Carbon Neutralization
·
2026
·Vol. 5
·期 4
·e70190
·
IF 21.5
Qianwang Ye,Hanqing Dai,Zhile Han,Guoqi Zhang,Fei Han,Wanlu Zhang,Ruiqian Guo
We report a bioinspired, transparent green plant-like window that integrates passive cooling, thermal insulation, and solar-driven waste heat recovery to reduce building energy consumption. By mimicking leaf transpiration, the system uses a carbon quantum dot-doped CPPB hydrogel to achieve high visible transmittance (~92%) while blocking UV and NIR radiation. A self-powered water circulation layer repurposes solar heat for domestic water heating. Outdoor field tests and 168-h solar simulator exposure confirm long-term thermal stability and cooling up to 21.9°C. Simulations across 30 global cities show annual cooling energy savings up to 569.1 MJ/m 2 . This scalable, multifunctional window offers a sustainable path toward net-zero energy buildings.
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CEMENT & CONCRETE COMPOSITES
·
2023
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IF 10.5
Shujun Li,Gaofeng Chen,Yasong Zhao,Zhenhai Xu,Xu Luo,Cheng Liu,Jianming Gao
Knowing the reactivity of recycled brick powder (RBP) is fundamental for its correct and efficient utilization. In this work, the dissolution behavior of RBP in NaOH solution and the degree of reaction in cement matrix were studied to investigate the reactivity of RBP. The results revealed that the main active species of RBP, Si and Al, showed obvious lasting dissolution with a significant non-steady state dissolution stage, indicating that the reaction proceeds slowly. The dissolution mechanism controlled by the phase boundary reaction, with activation energies of 82.74 kJ/mol and 75.79 kJ/mol for Si and Al dissolution, respectively, further confirmed this finding. The strength activity index, thermogravimetric analysis , selective dissolution, BSE-IA-Mapping and MAS NMR all confirmed reactivity of RBP. Additionally, reaction rims were observed around RBP particles in cement paste . The low Ca/Si and Ca/Al ratios and their significant increases in a direction from the particle boundary to the paste demonstrate that the rim was a hybrid phase composed of the original RBP components and the reaction products.
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CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Kai Liu,Yuhang Xia,Qingqing Zhang,Yanying Du,Yusheng Shi,Sanjay Joshi,Chunze Yan,Yanjiao Wu,Shangyu Huang,Huajun Sun
Herein, the effect of the binder content in lead zirconate titanate (PZT) slurry has been systematically studied to improve the piezoelectric properties of PZT ceramics prepared via material extrusion 3D printing . For smooth printing, a slurry with a binder concentration ranging from 6 to 12 wt% was proposed. The porosity of the green body first decreased and then increased with an increase in the binder concentration, and the minimum porosity was obtained when the binder concentration reached 10 wt%. Samples with increased density were obtained after debinding and lead-rich atmosphere sintering. PZT piezoceramics fabricated using a binder content of 10 wt% exhibit the maximum relative density (96.9%), largest piezoelectric constant (342.6 pC/N) and dielectric constant (1621). Based on the above process, the wood pile structure and helical twentytetrahedral structural components were successfully fabricated using the material extrusion process. This research lays the foundation for the engineering application of 3D printing to fabricate high-performance piezoceramics with complex shapes.
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ChemistrySelect
·
2023
·Vol. 8
·期 9
·e202203501
·
IF 2.1
Br. Yundi Zhang,Mingyu Cui,Yidong Zhang,Wei Xu,Min Wang,Rong Shao,Jianfei Ding
Graphical The PMD conversion, TBPM selectivity, yield and the catalytic stability were obviously improved on the nanocrystalline HZSM-5 (Z-1) prepared by supercritical hydrothermal synthesis, because it had more amount of framework tetrahedral Al species and the total acidity, higher surface area and pore volume than those of HZSM-5 (Z-2) prepared by conventional hydrothermal synthesis. The nanocrystalline HZSM-5 was synthesized by supercritical hydrothermal synthesis for the first time and investigated in catalytic esterification of pyromellitic dianhydride(PMD)and n-butanol to tetrabutyl pyromellitate(TBPM). The HZSM-5 prepared by conventional hydrothermal synthesis was also examined for comparison. The catalysts were studied using XRD, N 2 adsorption, NH 3 -TPD, Pyridine-adsorption FT-IR, SEM, [27] Al MAS NMRandCHNS analysis. According to the results of characterization, the supercritical hydrothermal condition was helpful to reduce the size of crystal particles and improve the crystallinity of HZSM-5, and shorten the crystallization time. The surface area, especially external surface area, and pore volume were increased, and the total acidity was increased. The strong acid sites were transformed into the weak acid sites, and the strength of weak and strong acid was weakened. The amount of framework tetrahedral Al species and Brönsted acid sites were increased. Therefore, the formation of coke was retarded, and thePMD conversion, the TBPM selectivity and the catalytic stability were obviously improved.
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AICHE JOURNAL
·
2023
·Vol. 69
·期 7
·e18080
·
IF 3.7
Zhikai Liu,Mei Yang,Zhengya Dong,Chaoqun Yao,Guangwen Chen
A facile and robust ultrasonic micromixer was developed to intensify antisolvent precipitation via ultrasonic cavitation. The gas supersaturation created from solvent–antisolvent mixing was found to be a novel driving force which facilitated the generation of cavitation bubbles (CBs). Instead of being attached on the channel wall, numerous CBs translated across the microchannel at a speed up to 1.7 m/s, inducing intense transverse flow over the cross-section. The unique cavitation behavior enabled rapid mixing (mixing time 15–45 ms at 30 W) of solvent–antisolvent over wide Reynolds number range (70–500) and flow rate ratio (5:1–2:3), providing better operability for antisolvent precipitation. The effects of ultrasonic power, total flow rate, flow rate ratio, and solvent on cavitation behavior and mixing performance were quantitatively studied. Finally, the potential of the ultrasonic micromixer as a new tool for antisolvent precipitation was demonstrated by synthesizing size-controllable and monodisperse polymeric nanoparticles in a high-throughput and reproducible manner.
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ENVIRONMENTAL POLLUTION
·
2023
·
IF 8.9
Yangbin Liu,Nian Liu,Minghua Lin,Caifeng Huang,Zhijun Lei,Hongshuai Cao,Fugang Qi,Xiaoping Ouyang,Yun Zhou
The traditional semiconductor photocatalysts for solving the related environmental aggravation are often challenged by the recombination of photogenerated carriers. Designing an S-scheme heterojunction photocatalyst is one of the keys to tackling its practical application problems. This paper reports an S-scheme AgVO 3 /Ag 2 S heterojunction photocatalyst constructed via a straightforward hydrothermal approach that exhibits outstanding photocatalytic degradation performances to the organic dye Rhodamine B (RhB) and antibiotic Tetracycline hydrochloride (TC-HCl) driven by visible light. The results show that AgVO 3 /Ag 2 S heterojunction with a molar ratio of 6:1 (V6S) possesses the highest photocatalytic performances, 99% of RhB can be almost degraded by 0.1 g/L V6S within 25 min light illumination, and about 72% of TC-HCl can be photodegraded with the act of 0.3 g/L V6S under 120 min light irradiation. Meanwhile, the AgVO 3 /Ag 2 S system exhibits superior stability and maintains high photocatalytic activity after 5 repeated tests. Moreover, the EPR measurement and radical capture test identify that superoxide radicals and hydroxyl radicals mainly contribute to the photodegradation process. The present work demonstrates that constructing an S-scheme heterojunction can effectively inhibit the recombination of carriers, providing insights into the fabrication of applied photocatalysts for practical wastewater purification treatment.
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ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Ying Peng,Yongshuai Xie,Zhezhe Deng,Dehua Ma,Benxue Liu,Xinqiang Wang,Guanghui Zhang,Luyi Zhu
The inherent brittleness and hydrophilicity of ceramics pose a great challenge to designing a reliable structure that can resist mechanical loads and moisture in extreme conditions with high temperature and high humidity. Here, we report a two-phase hydrophobic silica–zirconia composite ceramic nanofiber membrane (H-ZSNFM) with exceptional mechanical robustness and high-temperature hydrophobic resistance. For the dual-phasic nanofibers, the amorphous silica blocked the connection of zirconia nanocrystals, and the lattice distortion was observed due to Si in the ZrO2 lattice. H-ZSNFM has strong strength (5–8.4 MPa), high hydrophobic temperature resistance (450 °C), high porosity (89%), low density (40 mg/cm3), low thermal conductivity (30 mW/m·K), and excellent thermal radiation reflectivity (90%). By simulating the actual high-temperature and high-humidity environment, 10-mm-thick H-ZSNFMs can reduce the heat source from 1365 to 380 °C and maintain complete hydrophobicity even in a water vapor environment of 350 °C. This means that it has superior insulation and waterproof performance even in a high-temperature water environment. For firefighting clothing, H-ZSNFM displayed waterproof and insulation layers, which have excellent thermal protection performance and achieve incompatibility between water and fire, providing valuable time for fire rescue and a safety line of defense for emergency personnel. This design strategy with mechanical robust and hydrophobic temperature resistance applies to the development of many other types of high-performance thermal insulation materials and presents a competitive material system for thermal protection in extreme conditions.
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JOURNAL OF CHEMICAL THERMODYNAMICS
·
2023
·
IF 2.6
Fuxin Yang,Bangju Wang,Yanhao Jiao,Houzhang Tan,Xiaopo Wang
Due to the lower boiling point and high solubility, ionic liquids are considered as the green and environmentally friendly chemicals, and widely studied in the absorption refrigeration cycles. However, the ionic liquids always possess high viscosity. In this work, 2,2,2-trifluoroethanol (TFE) was selected as a solvent to reduce the viscosity of ionic liquids. The densities and viscosities of TFE with three ionic liquids were measured at atmospheric pressure and temperature in the range of 293.15–333.15 K. The effect of solvents on reducing the viscosity of ionic liquids was analyzed. The excess properties of mixtures were calculated to analyze the interaction of the binary mixtures. The hard-sphere model was used to study the viscosity of pure substances and binary mixtures to further understand the interactions between ionic liquids and TFE.
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DIAMOND AND RELATED MATERIALS
·
2023
·
IF 4.1
Shiqi Zhang,Peidong Ling,Yi Chen,Jun Liu,Chun Yang
Herein, 2D/2D porous Co 3 O 4 nanosheets/rGO composites modified GCE (Co 3 O 4 /rGO/GCE) were proposed for electrochemical detection of tryptophan (Trp). The surface morphology and structure of Co 3 O 4 /rGO nanosheets were carried out using SEM, XRD , and Raman spectra . Electrochemical performance of Trp on as-synthesized modified electrodes were discussed by CV and EIS techniques. Moreover, the best electrochemical property was also investigated by varying test condition detailedly. Consequently, oxidation peak intensity and current density were 130.3 μA and 336.7 μA·cm −2 on Co 3 O 4 /rGO/GCE at working potential of 0.78 V ( vs. SCE electrode), respectively. They were more than 23-times greater than these on bare GCE in electrochemical detection of Trp. It was attributed to the synergy effect of 2D porous Co 3 O 4 nanosheets (high catalytic activity) and 2D rGO nanosheets (large electrochemical active area). After the optimization, wide linear determination ranges (from 1.0 to 800 μM) and low LOD of 0.26 μM (S/N = 3) were acquired. In addition, these electrodes were further successfully applied to the determination of Trp in commercial amino acid injection samples. This 2D porous Co 3 O 4 /rGO modified GCE sensor could provide a slight view on the design of 2D/2D composite materials with high electrochemical properties.
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APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Adham AL-AKHALI,Kaixun NIE,Duoxun FANG,Zhengqiang TANG
Fabricating underwater superoleophobic surfaces is an advanced technique for controlling undesirable oil and wax adhesion on engineering structures and household appliances. This article presented a facile method based on the combination of laser ablation of stainless steel substrates followed by magnetron sputtering of a metallic tungsten target to fabricate superhydrophilic and underwater superoleophobic surfaces. The results showed that the laser-ablated stainless steel substrate without coatings exhibited hydrophilicity and underwater oleophobicity. However, its transition to superhydrophilicity and underwater superoleophobicity with a 0° water contact angle and higher than 156° underwater oil contact angles occurred after the deposition of a thin tungsten film followed by annealing at 300 °C. The prepared surface maintained its wetting behavior for more than 4 weeks, even in corrosive aqueous HCl and NaOH solutions. According to the data from SEM and XPS, this distinguished wetting behavior resulted from the presence of the regular microscale texture patterns, abundant hydroxyl content, and low carbon content on the tungsten layer after annealing at 300 °C. Thus, laser ablation combined with magnetron sputtering of tungsten demonstrated effective results in fabricating superhydrophilic and underwater superoleophobic surfaces that are independent of the initial wetting of the substrates.
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危险品化学品经营许可证（带存储）