IONICS
·
2026
·
IF 3.4
Xie Shanshan,Chen Xiaotong,Li Xiaogang,Cheng Lanlan,Wu Rui,Li Jun,Wang Zongnan,Tu Huan,Xue Yutao,Yuan Aihua
Aqueous zinc-ion batteries (AZIBs) have emerged as promising candidates for next generation energy storage systems, benefiting from their high intrinsic safety, cost-effectiveness, and environmental benignity. However, practical applications of AZIBs are severely hindered by critical issues of poor reversibility, dendrite growth, interfacial corrosion, and the hydrogen evolution reaction (HER). Herein, trifluoroacetamide (TFA) is proposed to optimize the Zn²⁺ solvation configuration and stabilize the anode interface to suppress dendrite growth. In contrast to prior strategies relying on a single fluorine source (BF₄⁻or inert anions), this work uses BF₄⁻ and the -CF 3 group of TFA as dual fluorine sources for synergistic organic/inorganic interfacial regulation. ATR-FTIR, Raman, and NMR spectra show that TFA effectively modulates the Zn 2+ solvation structure, and XPS depth profiling confirms the formation of a dense hybrid SEI consisting of inorganic ZnF 2 (from BF₄⁻) and organic fluorides (from -CF 3 ). Comprehensive electrochemical and physical characterizations reveal that the 1 M Zn(BF₄)₂-5% TFA exhibits a minimum contact angle of 45°, which remarkably enhances the wettability Zn/electrolyte interface, enables uniform Zn deposition, and promotes stable three-dimensional diffusion kinetics. The Zn||Zn symmetric cell assembled with the same electrolyte delivers excellent long-cycle stability (≈ 360 h at 1 mA cm⁻² and 0.5 mAh cm⁻²) and high critical current density (12 mA cm⁻²). This work elucidates the pivotal role of TFA in modulating interfacial ion transport and Zn deposition behavior, furnishing a viable strategy for the construction of highly reversible zinc-based batteries.
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高影响因子
Advanced Optical Materials
·
2026
·
IF 7.2
Xuetao Yan,Lifei Chen,Yuze Ren,Kaixuan Cui,Tianliang Li,Lixing Lin,Zeyu Li,Haicheng Song,Yingying Chen,Zhenzhen Li,Lingyan Feng
Circularly polarized luminescence (CPL) materials are highly sought after for their unique chiroptical properties, but their rational design remains challenging. To address this, a machine learning (ML) platform that intelligently screens deep eutectic solvents (DES) for crafting G-quartet-based gels with tailored CPL is established. An ML classifier trained on experimental data predicts CPL activity with 0.916 accuracy. SHapley Additive exPlanations (SHAP) analysis identifies key DES molecular descriptors, guiding the discovery of novel materials that exhibit a record-high luminescence dissymmetry factor (g lum ) of 0.222 for nucleotide-based systems and achieve chirality inversion via DES modulation. The Sure Independence Screening and Sparsifying Operator (SISSO) algorithm further yields interpretable design formulas. Leveraging the distinct polarization of these gels, we demonstrate a fourth-level anti-counterfeiting strategy, decrypting concealed information via Morse and ASCII codes to enhance information security. This ML-driven methodology accelerates the discovery of high-performance CPL materials and opens new design avenues.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Chuanjiang Zhou,Xiao Song,Ran Wei,Shengjie Liu,Zhaoqiang Wu,Hong Chen
Conductive ionogels based on deep eutectic solvents (DESs) have great application potential in the field of flexible sensors. However, the development of conductive ionogels that are stable under various environmental conditions (such as high and low temperatures, air, and water) remains extremely challenging. In this work, the hydrophobic conductive ionogel B x H y IG was prepared via a one-step photoinitiated copolymerization of butyl acrylate and N-hydroxyethylacrylamide in a hydrophobic DES. The good chemical compatibility between the polymer and DES, as well as the dense and reversible ion–dipole interactions, dipole–dipole interactions and hydrogen bond interactions, endow B x H y IG with satisfactory transparency (80 %), adhesion (polystyrene: 74.56 kPa), mechanical properties (elongation at break: 578 %, tensile strength: 171.25 kPa), a low degree of hysteresis (DH=1.9 %) and conductivity (3.95 × 10 -3 S m −1 ). Strain/pressure sensors and bioelectrodes prepared from ionogels have the characteristics of high sensitivity, fast response and excellent stability and can be used for real-time monitoring of human activities and health status in the atmosphere. In addition, the inherent hydrophobicity of B x H y IG (water contact angle > 110°) can effectively prevent B x H y IG from being eroded and swollen by water, thereby achieving reliable underwater sensing. More importantly, by directly exposing B x H y IG to air or storing it in nitrogen, the surface adhesion of conductive ionogels can be effectively regulated to obtain double-sided, single-sided or even nonadhesive ionogels. Therefore, this study provides new ideas for the development of conductive ionogels that can be applied under various environmental conditions.
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高影响因子
JOURNAL OF SEPARATION SCIENCE
·
2017
·Vol. 40
·期 8
·1644-1650
·
IF 2.557
Qiuying Li,Lili Lian,Xiyue Wang,Runnan Wang,Yuanyuan Tian,Xiaoyang Guo,Dawei Lou
Microcystins (MCs), produced by freshwater cyanobacteria, can be serious water pollutants, so it is important to monitor their concentration in drinking water. We have developed a method for rapid and accurate determination of microcystin levels in environmental water, using magnetic solid-phase extraction and high-performance liquid chromatography with UV detection. The magnetic composite material, which was combined with cetylpyridinium chloride, was prepared by hydrothermal synthesis. The optimal extraction of microcystins in water sample was achieved by optimizing the amount of adsorbent, time of adsorption, ratio of eluting solvent, and volume of eluent. Under the optimal conditions, the limit of detection of MC-LR was 0.001 μg/L, and the limit of quantification was 0.0028 μg/L. The limit of detection of MC-RR was 0.001 μg/L, and the limit of quantification was 0.003 μg/L. These values are far lower than those established by the International Health Organization for the maximum concentration of microcystins in drinking water. The magnetic solid-phase extraction adsorbent used in this method has the advantages of simple preparation, low price, and easy solid–liquid separation, and it can be used for the rapid and sensitive monitoring of trace microcystins in environmental water samples.
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PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Chuanjiang Zhou,Ran Wei,Zhaoqiang Wu
To address the challenges of water absorption-induced swelling and poor underwater adhesion in conventional ionic conductive gels under humid conditions, this work developed a novel Janus-type conductive ionogel. The ionogel features a hydrophobic underwater adhesion layer (BO layer) synthesized via copolymerization of butyl acrylate and octadecyl acrylate, followed by in situ polymerization of a poly(butyl acrylate)/ N -hydroxyethyl acrylamide-based conductive ionogel layer (BHIG) atop the BO layer. The interpenetrating network structure between the BO and BHIG layers provides exceptional interfacial bonding strength, with a peeling force of up to 276.5 N m −1 . Moreover, the Janus ionogel also regulates the adhesion and environmental adaptability of the material. Specifically, the Janus ionogel exhibited switchable dual-to-single-sided adhesion under atmospheric conditions and single-sided instant adhesion in aqueous environments. Furthermore, the Janus ionogel demonstrates amphibious real-time strain sensing in both air and water. Leveraging its asymmetric structure, a Janus TENG (triboelectric nanogenerator) was fabricated without physical encapsulation, achieving efficient low-frequency energy harvesting in the environment.
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Bioresources and Bioprocessing
·
2025
·Vol. 12
·期 1
·1-17
·
IF 5.1
Cai Wen,Zhang Qian-ying,Zhu Peng-cheng,Hu Wanrong,An Hongyue,Huo Dan-Qun,Li Dongliang
This study focuses on the aging process of strong-flavor flue-cured tobacco leaves (SCTL) and light-flavor flue-cured tobacco leaves (FCTL), and explores the effects of microbial metabolism and enzyme action on tobacco leaf components and quality during this process. It employs methods including high-throughput sequencing, functional prediction of microbial communities via the PICRUSt2/MetaCyc database, dynamic analysis of conventional components and enzyme activities, and redundancy analysis. The results showed that under the same aging duration, the microbial community diversity structures of tobacco leaves with different quality grades were similar, and a total of 21 species of differential bacteria and 9 species of differential fungi were screened out; During the aging process, the contents of starch and total phenols in tobacco leaves decreased significantly, reducing sugars and total sugars showed a fluctuating trend, while total nitrogen and total plant alkaloids had no significant changes. Among them, the starch content in SCTL was higher than that in FCTL, while the contents of total phenols, reducing sugars and total sugars in SCTL were lower than those in FCTL; the contents of total nitrogen and total plant alkaloids were comparable between the two types of tobacco leaves. Additionally, the contents of reducing sugars, total sugars and starch in both types of tobacco leaves were positively correlated with tobacco leaf grade, while the contents of total phenols and total nitrogen were negatively correlated with tobacco leaf grade; The enzyme activities in the two types of tobacco leaves showed fluctuating changes during aging, and redundancy analysis (RDA) identified significant correlations between microbial taxa, enzyme activities and tobacco leaf compounds. This study provides a basis for microbial strain selection and precision fermentation strategies in tobacco aging. Graphical abstract
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高影响因子
危险品化学品经营许可证（带存储）