INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2025
·
IF 3.9
Yu Chen,Zhuojia Shi,Yuqing Zhang,Yaxue Shen,Zheng Li,Yanlong Wang,Minghui Feng,Qi Liu,Xiaojie Zhao
One hundred low-melting mixture solvents (LoMMSs) are utilized to systematically investigate the impact of acid–base regulation on the leaching efficiency of all-solid-state electrolytes. Results show that the acidity of LoMMSs is positively correlated with the Li leaching efficiency in the all-solid-state electrolytes aluminum-doped lithium lanthanum zirconium oxide and lithium lanthanum zirconium tantalum oxide (LLZTO); however, there is a two-piece linear fitting tendency between the acidity of LoMMSs and La leaching efficiency in the LLZTO. Furthermore, the impact of factors such as the temperature, time, and liquid-to-solid ratio on the dissolution of all-solid-state electrolytes by LoMMSs is also investigated. The leaching efficiencies of LoMMSs for recovering Li and Zr from the all-solid-state electrolytes are 99.24 and 83.74%, respectively. When LoMMSs and the all-solid-state electrolytes are scaled up 100 times to simulate industrial applications, the leaching efficiency of Li decreases only slightly (from 94.81 to 94.70%).
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高影响因子
Nanoscale
·
2015
·Vol. 7
·期 27
·11720-11726
·
IF 7.394
Juan Zheng,Yeru Liang,Shuqin Liu,Yajuan Ding,Yong Shen,Tiangang Luan,Fang Zhu,Ruifen Jiang,Dingcai Wu,Gangfeng Ouyang
Development of facile and effective methods for fabrication of high-performance solid phase microextraction (SPME) fibres remains a great challenge. Herein, a new class of ordered mesoporous polymers (OMPs) in situ coated on a stainless steel wire were successfully developed and utilized as a highly sensitive and stable SPME fibre for the first time. Because of the highly ordered mesoporous structure of its OMP coating, the π–π interactions and the dispersion forces, the OMP-coated SPME fibre exhibited much better extraction properties as compared to the commercial PDMS fibre. The findings could provide a new benchmark for preparing well-defined porous materials for the SPME application.
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高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Dan Wang,Yuanmin Gong,Meiting Yan,Jiaqi Chen,Xueping Tao,Yang Zhou,Yan Ma,Li Rao,Panpan Chen,Qifeng Fu
Carbon dots (CDs) hold great potential for chromatographic separations. However, their application in chromatographic stationary phases has been limited by two major synthetic challenges: (1) insufficient control over surface chemoselectivity caused by impurity co-adsorption, and (2) structural heterogeneity arising from uncontrolled solvothermal byproducts. To address these limitations, we developed a self-polymerization-driven strategy to synthesize high-purity hydrophobic CDs from 8-amino-2-naphthol (8N2OH) and 2,3-dihydroxynaphthalene (DHN). These CDs were incorporated into organic polymer monoliths via in situ copolymerization, yielding novel 8N2OH-CDs and DHN-CDs hybrid monolithic stationary phases for reversed-phase capillary liquid chromatography. The synthesized CDs were thoroughly characterized, with high purity confirmed by proton nuclear magnetic resonance. The resulting monolithic columns exhibited high permeability and uniformity, as demonstrated by field emission scanning electron microscopy, attributed to the excellent dispersion of the CDs. The chromatographic performance was evaluated using nine types of neutral, alkaline, and acidic compounds, as well as Tanaka standard test mixtures. Compared to unmodified columns, the CD-modified monoliths showed significantly enhanced retention strength and selectivity, supported by Tanaka tests revealing multifactorial retention mechanisms. This work demonstrates the potential of high-purity hydrophobic CDs as versatile modifiers for high-performance chromatographic stationary phases.
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高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Jiayi Qu,Yujun Guo,Xingtai Chen,Xiaoning Wang,Davoud Dastan,Xi-Tao Yin,Xiaoguang Ma
Dy 2 O 3 -CdS nanomaterials was firstly prepared by a one-step hydrothermal method for the rapid detection of n-butanol. In comparison with the sensor solely based on CdS, the integrated gas sensitivity performance of the sensor S 2 (containing 10 mol % Dy 2 O 3 ) for n-butanol was significantly improved, with a response value of up to 130, 3.25 times higher than that of the pristine CdS for 100 ppm n-butanol gas at an optimal operating temperature of 200 °C, this represents a substantial enhancement in the sensitivity of n-butanol detection, outperforming many existing sensing materials. Secondly, the sensor not only demonstrates excellent selectivity and long-term stability towards n-butanol but also enables highly precise detection within the wide concentration range of 5-300 ppm, Additionally, it possesses a fast response/recovery time of 25/18 s, significantly improving the detection efficiency. After a sequence of characterization utilizing XRD (X-ray diffraction), SEM (scanning electron microscope), TEM (transmission electron microscope), XPS (X-Ray photoelectron spectroscopy), the study reveals that the superior gas-sensing performance is attributed to the formation of n-n type heterojunctions, the interconnection of CdS nanomicrospheres by Dy 2 O 3 nanorods that facilitates gas transport, and the unique 4f electrons of Dy 2 O 3 . These findings provide new insights into the design of high-performance gas sensors, distinguishing this work from previous studies and making it a valuable contribution to the field of n-butanol detection.
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INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Luowen Sun,Jiayi Zhong,Hongyang Zhou,Xiaoqi Liu,Jin Gu,Chuanshuang Hu,Xiuyi Lin
Camellia oleifera shells (COS) are agricultural by-products that commonly discarded and burned, causing pollution to the environment. Due to their high holocellulose content, COS present a promising and cost-effective biomass resource, retaining both cellulose and hemicellulose. Leveraging this potential, holocellulose separators were fabricated via dissolution-regeneration and nonsolvent-based phase separation methods. The obtained holocellulose separator demonstrated a high porosity rate of 68.2 %, good thermal stability (to 190°C) and high ionic conductivity in sodium-ion batteries (2.38 mS/cm). Furthermore, the battery assembled with the holocellulose separator exhibited higher specific capacity and better stability compared to those using glass fiber separators, highlighting its potential for sustainable and high-value applications.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Qingsong Luo,Yu Wan,Zhenxing Wang,Shuang Gao,Yan Chen,Changhao Feng
In the field of environmental monitoring, metal oxide semiconductor (MOS)-based gas sensors demonstrate significant advantages in detecting volatile organic compounds (VOCs) in ambient air. Gas sensors based on Yttrium-doped Zinc Ferrite nanofibers (Y-doped ZFO NFs) are fabricated via a conventional electrospinning method, with varying molar ratios of Y/Zn (0 at%, 2 at%, 4 at%, and 6 at%). Here, the doping of rare earth element Y significantly enhances the gas sensing performances. The structural and morphological information of both pristine ZFO and Y-doped ZFO NFs have been characterized by X-ray diffraction (XRD), Scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), and Transmission electron microscope (TEM). Compared with pure ZFO, the 4 at% Y-doped ZFO (S3) exhibits a 4.46-fold higher response (R a /R g = 43.1) to 100 ppm n-butanol at 150℃ with a fast response time of 11 s. Additionally, the Y-doped ZFO NFs gas sensors exhibit outstanding selectivity, remarkable long-term stability, and a low limit of detection (LOD) attributed to their small grain size, porous and rough morphology, abundant oxygen vacancies, and the formation of n-n heterojunctions.
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高影响因子
LANGMUIR
·
2025
·
IF 3.9
Ruoxin Zhang,Hongsheng Lu,Lingyan Wei,Xingyu Lin,Ziteng Yang,Jie Qi,Zheng Zhang
Interfacial self-assembly offers a promising route to fabricate functional materials, yet achieving robust mechanical performance remains challenging. Here, the self-assembly of nonionic surfactant polyoxyethylene monoalkyl ether (AEO-9) at oil–water interfaces was systematically investigated to form a high-strength interfacial gel. During the self-assembly process, the mechanical strength of the interfacial gel progressively increased, reaching a maximum equilibrium value of 4200 Pa after 24 h. Furthermore, significant gradients in the composition, microstructure, and micromechanical properties of the interfacial gel along the sample height were revealed by fluorescence microscopy, small-angle X-ray scattering (SAXS), and atomic force microscopy (AFM). This unique interfacial self-assembly behavior was further studied via dynamic light scattering and molecular simulations. The solubility differences and polar–hydrophobic interactions are the key factors. Directional migration of AEO-9 from the oil phase (low solubility) to the aqueous phase (high solubility), driven by solubility differences, was found to establish a transient interfacial concentration gradient. This gradient facilitated interfacial enrichment of AEO-9, which was subsequently organized into gradient lamellar liquid crystals (LC) through compositional heterogeneity and polar–hydrophobic interactions. The gradient variations in micromechanical properties were correlated with the gradient structural packing. Moreover, the effects of AEO-9 concentration, brine, temperature, and oil type on the gel’s mechanical properties were examined, highlighting their roles in modulating the polar–hydrophobic balance. This study reveals the dual control of solubility-driven migration and interfacial interactions on gradient formation, establishing a framework for the design of high-performance interfacial materials.
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高影响因子
INORGANIC CHEMISTRY
·
2025
·
IF 4.7
Qing-Shuai Zhang,Yu-Le Wang,Li Yue,Yu-Dong Shan,Song-Hai Wu,Yong Liu,Xu Han
Although selective oxidation of benzene to phenol (SOBP) by H2O2 is an important chemical process, overoxidation of benzene by the produced nonselective •OH during the activation of H2O2 inevitably reduces the oxidation selectivity. We, therefore, attempt to mediate the oxidation selectively by using electrophilic KHCO3 in the oxidation system. In this study, Mo–Cu/NC has been successfully synthesized via ball-milling bimetallic Mo–Cu and N-doped carbon, which exhibits high reactivity in SOBP by H2O2 and KHCO3 with a desirable phenol yield of 25.1% and selectivity of 100%. A series of characterizations and DFT calculations reveal that the reaction between H2O2 and KHCO3 produces HCO4–, which is then moderately activated on Mo1Cu2/NC via the nonradical pathway with the formation of Mo-(η2-O2) peroxo. Meanwhile, Ov at Mo1Cu2/NC facilitates the adsorption of benzene, which is then selectively oxidized by Mo-(η2-O2) peroxo to phenol via the oxygen atom transfer pathway. This study provides new insights on the importance of Mo-(η2-O2) peroxo mediated by H2O2–KHCO3 in selective oxidation of aromatic C–H bond via the nonradical pathway.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Huai Wang,Zhenyu Yuan,Renze Zhang,Mengran Ran,Liyun Qin,Hanyang Ji,Kaiping Yuan,Fanli Meng
Aniline is not only a type of carcinogen but also the raw material for the preparation of drugs. Therefore, the detection of aniline is of great significance in human health and environmental protection. In this paper, rGO-SmFeO 3 -In nanocomposites were prepared by hydrothermal method for the detection of aniline by combining the excellent properties of rGO and In. The lattice, micro-morphology, elemental distribution and chemical state of the gas-sensitive material were analyzed through XRD, SEM, EDS, and XPS characterizations, which confirmed that the In-doped SmFeO 3 (SFO) nanoblocks-assembled microspheres composited on rGO were successfully prepared, and the nanocomposite possessed abundant oxygen vacancies. The gas sensitivity test results showed that 2 wt% rGO-SFO-1.5 wt% In had excellent gas sensitivity to aniline gas. At 200℃, 2 wt% rGO-SFO-1.5 wt% In had a higher response value of 64.2–100 ppm aniline, which was 6 times that of SFO, and showed a faster response and recovery process (10 s/5 s). In addition, the sensor demonstrated its ability to detect aniline at a lower detection limit of 1 ppb with a response rate of 1.25. Furthermore, the gas sensor was integrated into the embedded system to achieve real-time detection of aniline gas. This study provides a new reference for the development of low detection limit and high sensitivity aniline gas sensor.
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高影响因子
FUEL
·
2025
·
IF 7.5
Teng Chen,Huashuai Gao,Ping Qi,Shizhao Yang,Xin Xu,Jun Ma,Li Guo,Jingpei Cao,Jianqiang Hu
Coking substance in ester aviation lubricating oil has a great effect on the flight safety of aircraft, however its origin and forming mechanism is complicated and controversial. Herein, the coking mechanism of ester lubricating oil is investigated deeply based on the crankcase simulation test and thin film oxidation evaluation. Besides, its structural and compositional change is also detected through in situ thermal infrared spectroscopy and gas chromatography-mass spectrometer analysis. The results reveal that oil film can be detected when the oxidation time extends to 40.31 min during the thin film oxidation test at 613 K. Whereas, the weight of carbonaceous deposits increases obviously until the oxidation time extends to 4 h in thick oil oxidation at 613 K. The thin film oxidation is evidently identified as the origin for the formation of coking substance, and its formation process involves the orderly breakage of C-O and C–C bands, the formation, polymerization and carbonization of RCOO• and peroxides. More importantly, the tribological performance of ester lubricating oil before and after oxidation and the real characteristics of coking substance are also discussed contrastively, which providing a foundation for safely using this type of lubricating oil.
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高影响因子
AICHE JOURNAL
·
2025
·
IF 4
Qinghua Liu,Guoxuan Li,Chengmin Gui,Minghao Song,Fei Zhao,Shengchao Yang,Zhigang Lei,Pan Xu
Deep eutectic solvents (DESs) were regarded as promising absorbents in many absorption processes. Here, we use randomly methylated β -cyclodextrin (RAMEB) to further improve the absorption capacity of DESs for aromatic VOCs. We found benzene and toluene vapor pressures obviously decreased after adding 2% RAMEB (molar fraction) to DESs. Dynamic absorption experiments also confirmed this enhancement effect; the dynamic absorption efficiency for benzene and toluene increased by 6.12% and 9.23%, respectively, at a 5 mL/min solvent rate. Water was used to reduce the viscosity of DESs; the humidity and regeneration stability were evaluated experimentally. At the molecular level, the strong host–guest interactions between RAMEB and aromatic VOCs were identified as the main reason for improving the absorption capacity of DESs. Additionally, the roles of hydrogen bond donor and acceptor molecules were analyzed. π–π stacking and CH–π interactions were also identified as significant contributors to the aromatic VOCs absorption process.
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APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Xuekun Yang,Fang Chen,Fangrong Qin,Peng Huang,Cheng Du,Yuanxin Jiang,Songjie Deng,Aolin Ding,Yang Gan,Weiliang Wang,Shusheng Pan,Haiming Huang,Shaolin Zhang
Two-dimensional (2D) graphene-like metal oxides are promising for gas sensing due to their high surface area to volume ratio. This study presents an optimized van der Waals stripping method for fabricating ultrathin In 2 O 3 and SnO 2 films and the In 2 O 3 / SnO 2 heterostructure. The heterojunction sensor demonstrated high performance ethanol detection at 100 ppm, with a response value (R a /R g ) of 13.93, rapid response/recovery times (7 s/29 s), and excellent selectivity. Density functional theory (DFT) simulations revealed that the enhanced performance originates from synergistic interfacial effects that promote electron transfer and selective ethanol adsorption. This work provides a scalable strategy for synthesizing 2D heterostructures and demonstrates their potential for developing advanced gas sensors.
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