RARE METALS
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2025
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IF 11
Jiang Xue,Qu Dan-Yao,Zhang Jun-Nan,Kloper Viki,Zhang Ke-Fan,Zhang Guang-Jian,Wang Lei,Pan Ming-Hu,Guo Quan-Min,Chen Li,Huang Wei-Tian,Gao Jian-Zhi,Haick Hossam,Wu Wei-Wei
The field of disease smelling diagnosis has experienced a major breakthrough with the development of the electronic nose (E-nose) that utilizes thiol-capped gold nanoparticles (GNPs). This study focuses on overcoming the challenges of sensors to detect VOCs stably confounding with interferents of humidity and pressure, and clarifying their essential mechanism. An innovative and straightforward method for synthesizing GNPs and modifying their surface has been developed. This unique approach deviates from the conventional Brust method by completely removing any traces of tetraoctylammonium bromide (TOAB), ensuring reproducibility and simplicity of use. This modification enhances the sensor’s responsiveness to both polar and non-polar VOCs, as well as strengthen selectivity and anti-interferant capabilities. The mechanism of generating sensing cross-talk from TOAB residue is proposed through rigorous sensing experiments, X-ray photoelectron spectroscopy (XPS) results, and theoretical analysis. Thus, this study enhances the responsiveness of the sensor to both polar and non-polar VOCs, while also strengthening its selectivity and anti-interferent capabilities. This could potentially revolutionize the practical applications of E-nose in smelling diagnosis. Graphical abstract
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高影响因子
Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Meiqi Wang,Jialiang Kang,Jia Yang,Zhuoxin Wen,Manman Zhao,Zhanxiong Li
This study successfully introduced zinc-based layered metal hydroxides (Zn-LMHs) onto the fiber surface and subsequently transformed them into ZnO micro-nanostructures through a controlled process. In conjunction with low-surface-energy organosilicon materials, these structures facilitated precise modulation of the micro-nano structural features on the fiber surface. The crystalline characteristics of the ZnO micro/nano flower-like architectures on the cotton fiber surface were systematically investigated using XRD. The results confirmed that the micro/nano flower structure size could be controlled by optimizing the production parameters. SEM and AFM revealed a substantial increase in root mean square roughness (Rq = 164.0 nm), arising from cooperative interfacial coupling effects between architecturally engineered zinc oxide (ZnO) hierarchical micro-nano floral assemblies and siloxane-based surface modification layers. The modified cotton fabric exhibited remarkable superhydrophobic characteristics, achieving a water contact angle of 165.8° and a rolling angle of 5.0°. Thermogravimetric analysis (TGA) revealed that the treated cotton fabric displayed improved thermal stability, with a final decomposition temperature of 454.2 °C and a residual carbon content of 20.3 %. Moreover, the functionalized fabric demonstrated exceptional performance in terms of self-cleaning, antifouling, durability, and recyclability, alongside superior UV resistance and antibacterial properties. A novel and effective strategy for designing and fabricating advanced multifunctional textiles is proposed in the study.
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高影响因子
Natural Gas Industry B
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2025
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IF 6.5
Kuiqian Ma,Shuoshi Wang,Lei Zhang,Haojun Wu,Jintao Wu,Ping Guo,Lei Huang,Qixuan Zhang,Limiao Wang
There are limited quantitative studies on condensate gas using microfluidics under high-pressure and high-temperature conditions. This study employed microfluidics chips based on real porous media structures to conduct constant volume depletion experiments and investigate the microscopic mechanisms of condensate gas recovery. The aim of the experiments was to reveal the phase-behavior differences between bulk-phase gas and gas contained in porous media. The results revealed that condensate oil recovery in microfluidics experiments was higher than that in PVT cell tests, and nonuniform condensation and evaporation were exclusively observed in the microfluidics experiments. Furthermore, lower pore connectivity resulted in higher depletion recovery, while more developed fractures led to reduced recovery. Specifically, the chip with fewer fractures achieved the highest recovery (71.15 %), whereas the highly fractured chip exhibited the lowest recovery (56.11 %). These findings demonstrate that oil saturation during the process of constant volume depletion (CVD) of gas condensate within porous media is lower than that observed in the PVT cell, thus providing experimental evidence for optimizing condensate gas development in field applications.
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高影响因子
APPLIED SURFACE SCIENCE
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2025
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IF 6.9
Jiabing Chen,Xiaowei Zhu,Mengheng Wang,Xingmao Jiang,Xiaojun Lu
The reaction rate of alkoxycarbonylation is typically lower when using heterogeneous catalysts compared to homogeneous catalysis, primarily due to the reduced ability of the active sites to activate the reactants. To address the insufficient activation of reactants on the Ru/CeO 2 catalyst for ethylene methoxycarbonylation, this study investigates the doping of CeO 2 with Pr 3+ ions. By substituting Ce 4+ with Pr 3+ in the CeO 2 , richer oxygen vacancies are generated, which enhance the activation of CH 3 OH. This doping significantly increases the reaction rate of ethylene methoxycarbonylation to methyl propionate (MP), achieving a rate of 86.1 g·g Ru -1 ·h −1 while maintaining a selectivity of over 99 %. Notably, Pr doping also induces the formation of Ru-O-Ce species in the catalyst, which hinders the reduction of Ru species. However, this hindered reduction is counterbalanced by the enhanced dispersion of Ru species, as Pr doping promotes the formation of smaller Ru nanoparticles. Thus, an optimal level of Pr doping exerts a synergistic effect by positively influencing both the CeO 2 support and the Ru metal, thereby improving their respective abilities to activate the reactants and enhancing the overall performance in the ethylene methoxycarbonylation reaction to produce MP.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2025
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IF 9
Luhui Yang,Kun Chen,Jiluosi Fu,Qian Zhao,Niaz Ali Khan,Yuxiang Liu,Xihu Cheng,Zihan Yu,Mengying Long
Traditional thin-film composite (TFC) nanofiltration polyamide membranes exhibit a trade-off effect with a high selectivity but a low water permeability. To address this issue, lantern[3 3 ]arene (L[3 3 ]A), with a macrocyclic structure and hydroxyl groups, constructed an interlayer between polyamide (PA) layer and ultrafiltration membrane substrate to improve the permeability as high as 39.3 L m 2 h −1 bar −1 while remaining a high rejection of 99.3 % for 1000 ppm Na 2 SO 4 solution. The L[3 3 ]A interlayer enhanced the hydrophilicity of the substrate, enriched of piperazine (PIP) molecules on the substrate, and slowed PIP diffusion, thereby regulating the interfacial polymerization (IP) process. The TFC membrane with the L[3 3 ]A interlayer featured a thin and wrinkled PA layer, which respectively reduced the mass transfer distance for water molecules and increased the effective filtration area. Furthermore, antifouling tests using bovine serum albumin (BSA) as a model foulant demonstrated the improved antifouling performances of the 1L-PA membrane, achieving a remarkable flux recovery rate (FRR) of 96.2 %. This study presents a promising solution for the preparation of high-performance nanofiltration membranes.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Hang Xu,Lili Jiang,Yan Hu,Jitao Lin,Chao Zhou,Zhijun Zhong,Xiaomin Li,Chuanqiang Yin,Changxin Tang,Lang Zhou
Polyimide (PI) has emerged as a promising material for constructing efficient gas separation membranes due to its excellent stability and gas separation properties. Herein, we report a novel composite membrane structure that utilizes the synergistic effect to achieve efficient H 2 /CO 2 separation by skillfully integrating the advantages of three different functional layers. The support layer consists of a PI fiber membrane loaded with zeolitic imidazolate framework-67 (ZIF-67) using an in-situ growth method, which not only enhances the overall mechanical strength of the membrane, but also provides complex gas transport pathways to improve selectivity. The intermediate layer is made of polydimethylsiloxane (PDMS), which prevents excessive penetration of the selective layer solution into the support layer. The selective layer is a mixed matrix membrane composed of polyetherimide (PEI) as the polymer matrix and zeolitic imidazolate framework-67 (ZIF-67) as the porous filler, which provides critical molecular sieving functionality. Compared to pure polyetherimide (PEI) film, the composite membranes have significantly improved mechanical and gas transport properties, with H 2 permeability of 83.4 Barrer and H 2 /CO 2 selectivity of 5.4. Additionally, the composite membranes exhibit excellent hydrophobicity and thermal stability. Given their outstanding overall performance, the composite membranes developed in this study demonstrate significant potential for CO 2 capture and H 2 recovery applications.
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JOURNAL OF POWER SOURCES
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2025
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IF 7.9
Zhanwen He,Yibo Guo,Xiaomeng Zhou,Haijun Zhang
In response to the deficiencies of existing fire extinguishing agents, such as insufficient cooling performance, electrical conductivity, and the generation of toxic gases when dealing with lithium battery fires, this study has developed a composite powder fire extinguishing agent that combines commercial ABC dry powder (the main component is ammonium phosphate.) with disodium hydrogen phosphate dodecahydrate (DHPD) to address lithium-ion battery fires. Experiments have shown that 35 %DHPD@ABC can reduce the fire temperature by 297 °C within 20 s in a oil pool fire experiment, representing a 34 % improvement in cooling performance. In thermal runaway (TR) suppression tests, it rapidly lowers the battery temperature to 162 °C, with an 80 % increase in cooling efficiency and effective prevention of TR propagation. Differential scanning calorimetry (DSC) and thermogravimetric infrared (TG-IR) analyses reveal that the fire-extinguishing mechanism integrates chemical inhibition with physical cooling and isolation. This composite powder fire extinguishing agent offers an innovative strategy for the prevention of lithium-ion battery fires.
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Animal Nutrition
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2025
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IF 7.5
Qingyan Yin,Xingwei Jiang,Huifeng Liu,Peiyue Wang,Xiaodong Su,Jun Zhang,Xinjian Lei,Junhu Yao
An essential function carried out by bile acids (BA) is to aid in lipid absorption, as they emulsify lipids and combine with them to form chylomicrons. While BA have been utilized as lipid emulsifiers in monogastric and aquatic animals, their impact on ruminants remains relatively unexplored. Two experiments were conducted to investigate the effects of BA on the lipid absorption of lactating dairy goats. In experiment 1, twelve lactating goats with similar days in milk (42 ± 2 d), body weight (46.2 ± 5.1 kg), and milk yield (1.62 ± 0.33 kg) were administered four BA doses (0, 1, 2, or 4 g/d) to explore the effects of BA supplementation. The results observed a positive correlation between the BA dose and plasma total bile acid concentration ( P < 0.001). Notably, when goats received BA, there was a trend of increase in the proportion of preformed fatty acids in milk ( P = 0.079). In experiment 2, eighteen lactating goats with similar days in milk (100 ± 6 d), body weight (45.0 ± 3.7 kg), and milk yield (1.60 ± 0.31 kg) were divided into two groups (HF and HFB): HF group received no BA, while HFB group received BA (4 g/d). Both the groups were fed diets with fat powder supplementation (1% of dry material) for 5 weeks. BA supplementation led to a significant increase in milk yield ( P = 0.024) and fat concentration ( P = 0.045). Meanwhile, there was a significant rise of total bile acid concentration in plasma ( P < 0.001), rumen ( P < 0.001) and feces ( P < 0.001). Additionally, BA supplementation had a significant impact on blood metabolism, up-regulating 241 metabolites and down-regulating 208 metabolites ( P < 0.05). BA supplementation also altered the correlations among various plasma lipid components ( P < 0.05). In fatty acid (FA) analysis, 26 different FA were detected, out of which 16 showed significant down-regulation upon BA supplementation ( P < 0.05). In conclusion, BA supplementation positively influenced lactating dairy goats, particularly when fed diets with fat powder supplementation. BA supplementation enhanced milk yield, improved milk fat concentration, and significantly altered lipid-related blood metabolism. These findings suggest that BA supplementation could be a valuable strategy for enhancing dairy production and lipid metabolism in dairy goats, offering potential benefits for the dairy industry.
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PubMed
高影响因子
Reaction Chemistry & Engineering
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2025
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IF 3.1
Yuhan Wang,Mohsin Pasha,You Ma,Guozhi Qian,Minjing Shang,Yuanhai Su
The photochemical transformations under solvent-free conditions provide a gateway towards sustainable and green chemistry. In this work, we established a continuous-flow photochemical system with a capability of automatically switching between different capillary microreactors and synthesized quadricyclane from norbornadiene under solvent-free conditions at near-unity conversion and yield in short residence times and low photosensitizer loading. Various parameters such as photocatalyst loading, capillary size, geometry and configuration were investigated to optimize the quadricyclane yield and selectivity. We developed an updated kinetic model for this solvent-free reaction system and validated its zero-order kinetics by varying light intensity, initial NBD concentration and photosensitizer. This kinetic model was also validated under double-side irradiation conditions that involved the presence of reflecting mirror. Computational fluid dynamics (CFD) simulations were performed to characterize the light intensity distribution, and the shape and size of the capillary microreactor were integrated into the reaction rate equation as an auxiliary variable of light intensity to define the effective specific surface area. Moreover, the scope of linear correlations between effective surface area and apparent rate constants was extended for chip-based glass microreactors. Finally, based on the reaction rate equation, we designed and tested a reactor with high production capacity, which can achieve a daily output of 3 kg of quadricyclane.
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JOURNAL OF THE ENERGY INSTITUTE
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2025
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IF 6.2
Liang Guo,Yimo Zhu,Degang Li,Wanchen Sun,Yanbin Shi,Changcheng Liu,Hao Zhang,Xia Liu,Jiahui Han,Yanan Guo,Fei Yue
In this paper, the basic combustion characteristics of blends of ammonia and several typical hydrocarbon fuels (including n-heptane, gasoline and RP-3 kerosene) are explored. The results show that the Laminar Flame Speed (LFS) of ammonia combustion assisted by n-heptane is faster than that of the ammonia combustion assisted by gasoline. The equivalent ratio of RP-3 kerosene/ammonia co-combustion corresponding to the highest LFS is evidently higher than other two fuels, and its equivalent ratio of lean burn limit is also higher. Further analysis of chemical reaction kinetics reveals that carbon-based fuels and ammonia interact with each other primarily via the competition to obtain active free radicals, such as OH, H, and O. Besides, the strength of C-N cross-reaction is relatively low and has little influence on the overall reaction path. Comparing the three co-combustion processes, the Markstein length of RP-3 kerosene-assisted ammonia combustion is higher, which is conducive to improving the stability of flame, especially under the high equivalent ratio. With the variation of temperature, the Markstein length of the n-heptane assisted ammonia combustion changes most significantly, and the addition of iso-alkanes will weaken the sensitivity of Markstein length to temperature.
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CONSTRUCTION AND BUILDING MATERIALS
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2025
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IF 8
Mei Deng,Wenli Zhang,Xinli Gan,Xuejuan Cao,Boming Tang,Xinqiang Zhang
Asphaltene aggregates depolymerization is a critical factor in aged asphalt rejuvenation, yet the impact of major rejuvenator components remains unclear due to asphaltenes’ complex structure. Unlike previous simulation-based investigations, this study employs various characterization techniques to reveal asphaltene aggregate behaver during oxidative aging and the microscopic depolymerization mechanism and structure-activity relationships of 10 representative bio-based and petroleum-based rejuvenator compounds. The results revealed that oxidative aging increased the stacking density and order of aromatic layers within asphaltene aggregates and promoted O-H···O hydrogen bond formation. Additionally, oxidation reduced the critical micelle concentration of asphaltenes and caused fluorescence quenching, resulting in the development of dendritic three-dimensional aggregates with equidistant, layered, and porous structures. However, the introduction of rejuvenators disrupted the stacking of aromatic layers but had minimal impact on the arrangement of aliphatic chains. Rejuvenators containing heteroatoms further promoted depolymerization by forming hydrogen bonds with asphaltene molecules, reducing the aggregate size and producing more dispersed and irregular structures. The bio-rejuvenators with heteroatom functional groups exhibited superior depolymerization efficiency. This study provides mechanistic insights into rejuvenator-induced asphaltene depolymerization and establishing a foundational reference for the molecular design of efficient rejuvenators in recycled asphalt applications.
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高影响因子
Journal of Materials Chemistry A
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2025
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IF 9.5
Fei Guo,Lingfeng Wang,Huixin Dong,Pengyu Yan,Shishuo Wang,Qingquan Li,Shaohua Yin,Guoli Zhou,Ning Zhang,Xiao Wu,Yuandong Jia,Gaohong He,Xiaobin Jiang
High ion-selectivity and robust long-term stability are critical performance metrics for nanofiltration (NF) membranes targeting lithium extraction from high-salinity brines with impurities and high magnesium lithium ratios. Herein, a positive and negative heterostructure dual-layer NF membrane with sub-10 nanometer PA layer on 2D Zn-TCPP nanosheets through interfacial polymerization method coupled with vacuum assisted filtration was constructed. PA layer with positively charge on the top performed as the ‘shield’ that effectively retains Mg2+, while negatively charged Zn-TCPP coupled with uniform pores performed as the ‘accelerator’ to facilitate Li+ permeate. The addition of Zn-TCPP can increase the membrane free volume fraction and construct effective screening channels. An appropriate amount of Zn-TCPP nanosheets can construct PA layers as thin as 5 nm and lead to the best Li/Mg separation performance. (Water permeance of 6.79 L⋅m−2⋅h−1 bar−1 over 360 hours continuous operation when Mg/Li ratio is 50:1, and Li+/Mg2+ separation factor is 80.79). In the ternary metal ions solution tests (Li⁺, Mg²⁺, X⁺, where X = Na⁺ or K⁺ with doubled concentration), Li+/Mg2+ separation factor remains still above 40. The DFT simulations and molecular dynamics reveal The transmembrane energy barrier for Mg²⁺ significantly exceeds that for Li⁺ across the membrane. The adsorption heights of ions on Zn-TCPP in a stable state, the different ion perforation energy and ion diffusion rate furtherly explain the reason for the membrane with excellent separation performance.
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高影响因子
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