NEW JOURNAL OF CHEMISTRY
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2026
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IF 2.5
Qiuye Deng,Gaoyuan Liu,Jing Xie,Jindou Hu,Zhenjiang Lu,Yali Cao
Molybdenum dioxide has emerged as a promising anode material for lithium-ion batteries (LIBs), owing to its distinct advantages of high theoretical specific capacity, efficient charge transfer kinetics, and multivalent oxidation states. Its layered crystal structure facilitates rapid Li+ diffusion, while its multielectron transfer mechanism enables enhanced energy storage density, positioning it as a competitive alternative to conventional graphite anodes. We achieve the layered structure by synthesizing amorphous molybdenum dioxide (MoO2−x) through a solution-based approach combined with low-temperature annealing. This tackles the critical challenges of structural degradation and restricted conductivity commonly encountered in transition metal oxide anodes. The non-crystalline structure of the as-prepared material induces reconfigured atomic arrangements, leading to a marked improvement in electronic conductivity and an enhancement in the kinetic response of Li+ insertion/extraction reactions during extended charge–discharge cycles. Electrochemical tests demonstrate that the optimized amorphous MoO2−x anode demonstrates an exceptional reversible discharge capacity of 817.1 mAh g−1 at a current density of 0.1 A g−1. Moreover, the material exhibits exceptional cycling durability, retaining a capacity of 436.3 mAh g−1 even after 500 charge–discharge cycles at an elevated current density of 5.0 A g−1. Empirical evidence demonstrates that amorphous phase engineering significantly enhances both the structural integrity and cycling stability of MoO2−x, facilitating its real-world implementation as a superior anode material in next-generation lithium-ion battery systems. This observation highlights the potential of non-crystalline design strategies as a systematic approach for optimizing transition metal oxide-based anodes for advanced energy storage technologies.
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Advanced Composites and Hybrid Materials
·
2026
·
IF 21.8
Wei Tiancheng,Xu Li,Cheng Qichao,Cai Jiangfeng,Yu Jing,Wu Qi,Wan Quan,Wang Jie,Xu Zongpu,Shuai Yajun,Yang Mingying
Electromagnetic (EM) shielding fabrics offer a promising solution to the growing issue of EM pollution. There is particularly demand for fabrics applicable in complex environments where comfort, durability, and multifunctionality are essential. In this work, we report the design of multifunctional EM shielding fabric (denoted as Silk-Ppy-PDMS) based on natural silk, which achieves self-cleaning, photothermal antibacterial and efficient EM shielding. By in situ polymerization of hydrophilic polypyrrole (Ppy) onto silk and applying superhydrophobic polydimethylsiloxane (PDMS) coating, we imparted multiple functionalities to the fabric. The needle-like Ppy coating introduces surface roughness favorable for superhydrophobicity, enabling effective self-cleaning. Meanwhile, the same structure enhances light absorption and conversion into heat, contributing to strong photothermal antibacterial. In addition, the fabrics complex surface topography not only facilitates the reflection of X-band EM waves but also leverages the dielectric loss of Ppy to effectively absorb incident radiation. Remarkably, the optimal composite, designated as Silk-P5-P, exhibits Stable WCA (155.5°), peak photothermal temperature (68.5 °C), excellent antibacterial rate (99.95%), superior EM shielding effectiveness (26.3 dB) and exceptional EMI SE per unit thickness (202.31 dB mm⁻¹). Collectively, these features establish the Silk-Ppy-PDMS series (specifically, Silk-P5-P) as a next-generation, wearable EM shielding fabric with robust self-cleaning and antimicrobial, offering considerable potential in advanced multifunctional textile applications. Graphical
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MICROCHEMICAL JOURNAL
·
2026
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IF 5.1
Wenming Yang,Qinghe Wang,Shengjie Zhu,Weihong Huang,Wanzhen Xu
The extensive use of the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) calls for the development of robust methods for its trace-level monitoring in the environment, owing to the associated ecological and health risks. Herein, a novel molecularly imprinted photoelectrochemical (PEC) sensor is rationally designed for the ultrasensitive and specific detection of 2,4-D. The sensor is constructed on a synergistic Tin(III) oxide/multi-walled carbon nanotube (Sn 3 O 4 /MWCNT) nanocomposite, where Sn 3 O 4 nanoflowers act as an efficient photoactive matrix and the MWCNTs serve as an electron highway. This synergy significantly enhances charge separation, suppresses recombination, and provides a strong, stable photocurrent. A highly selective molecularly imprinted polymers (MIPs) layer is subsequently fabricated on this composite via in situ electrophmerization of pyrrole, creating specific recognition cavities for 2,4-D. The resulting MIP-PEC sensor displays an ultra-broad linear range spanning five orders of magnitude (0.1 nM ∼ 100 μM) and achieves an impressively low detection limit of 16.1 pM (S/N = 3). It also demonstrates excellent selectivity against structural analogs, high reproducibility, and satisfactory recoveries (93.8–106.7%) in real water samples. This work not only provides a robust analytical tool for trace pesticide analysis but also offers a versatile sensing strategy through the integration of advanced nanomaterials with molecular imprinting technology.
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Advanced Fiber Materials
·
2026
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IF 21.3
Liu Jinyi,Yi Jia,Shen Wenrong,Hu Jie,Fu Tianqi,Jing Mengbo,Qian Hao,Chen Jianmin,Li Man,Lin Youhui,Fu Lianlian
Conventional foot pressure sensors suffer from measurement inaccuracy, wearing discomfort, and frequent calibration, which greatly hinder their long-term practical application. Herein, we develop a tannic acid (TA)-enhanced thermoplastic poly(ether–ester) elastomer/polypyrrole hybrid membrane (TPEE–PPy–TA) with high stretchability and excellent durability as a foot pressure insole for deep learning algorithms assisted effective detection of knee deformities. Specifically, the TPEE fibrous substrate is primarily synthesized through a precisely controlled electrospinning process. Then, the in-situ polymerization of pyrrole on TPEE substrate is conducted using FeCl 3 as an oxidant and TA as a dopant. The incorporation of TA can dramatically enhance the stretchability of TPEE–PPy hybrid membrane. This enhancement is attributed to abundant phenolic hydroxyl groups of TA, which synergistically interact with both PPy chains and Fe 3+ ions to form multifunctional interfacial networks. The stretchable and conductive membrane-based flexible sensor demonstrates outstanding pressure-sensing performance with broad detection range, fast response/recovery time, and excellent cyclic stability under 10 N loading. Beyond accurately monitoring various human motions and effectively transmitting haptic-based Morse code signals, our pressure monitoring system achieves 98.0% diagnostic accuracy for knee valgus/varus deformities through deep learning analysis of flexion signals when integrated into a foot pressure insole. This work establishes a new paradigm for smart textiles in wearable medical diagnostics by synergistically combining material innovation with AI-assisted health monitoring technology. Graphical
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9
Min Yin,Lihua Chen,Yanyu He,Shaopeng Chen,Wenyu Zheng,Qi-Meige Hasi
Solar-driven interfacial evaporation holds significant potential for treating oily wastewater. Traditional evaporators may become clogged due to residues or contamination caused by the release of volatile organic compounds (VOCs). We have developed a novel evaporator that combines oil-water interfacial evaporation with photocatalytic removal of VOCs. In experiments using simulated seawater, oily wastewater, phenol (PNP), and p-nitrophenol (PhOH)-contaminated water, we evaluated water evaporation efficiency and VOCs degradation. The temperature gradient on the aerogel surface, combined with interfacial evaporation and photocatalysis, enhanced evaporation efficiency. The oil-modified surface prevents oil blockage, while the photocatalytic coating effectively removes VOCs and enhances thermal regulation. Under 1 kW m −2 solar irradiance, the O-PPy/PTh-PI/MXene aerogel treated 10% oil-contaminated wastewater with an evaporation rate of 1.37 kg m −2 h −1 and an evaporation efficiency of 89.75%. Interface evaporation desalination treatment of source water contaminated with PNP and PhOH achieved a TOC removal rate exceeding 98%. An expanded aerogel evaporator array produced approximately 9.21 kg/(m 2 ·d) of pure water under actual sunlight. This successful demonstration highlights the evaporator's efficient evaporation potential at the interface for treating oily wastewater, showcasing its broad application prospects.
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CHEMICAL ENGINEERING JOURNAL
·
2026
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IF 13.2
Shuyao Li,Xu Wang,Shiyuan Weng,Huangxuan Zhang,Yize Liu,Xinyu Zhuang
With the development of the economy and advancements in sensing technology, it is become feasible to develop intelligent, safe and low-carbon vehicles. Traditional monitoring methods rely on high-cost detection equipment, and the continuous power supply required for numerous on-board sensors consumes a significant amount of the vehicle's electrical energy, thereby shortening the vehicle's range. Against this backdrop, this paper proposes a low-cost, self-powered non-contact triboelectric nanogenerator (FSS-TENG) with excellent short-range detection capability, which can be used as a sensor for monitoring vehicle blind spots. The FSS-TENG is fabricated using a conductive composite hydrogel based on polypyrrole (ppy) and biochar, endowing it with outstanding performance. Meanwhile, we have improved the device structure, which greatly enhances the output signal of the non-contact triboelectric nanogenerator. Experimental verification shows that the FSS-TENG can generate electricity stably during both vertical and horizontal sliding motions. It can be attached to the rear side, both sides, and the tail of the vehicle to realize blind spot vehicle detection, providing a safe, sustainable, and highly sensitive technical solution for vehicle blind spot monitoring.
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MICROCHEMICAL JOURNAL
·
2026
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IF 5.1
Chuangyu Wei,Meitong Li,Rui Tao,Xinyu Yang,Yuexing Zhang,Xue Cai
The design of a highly efficient non-enzymatic electrochemical sensor capable of simultaneously detecting dopamine and uric acid is of significant importance to biomedical research, particularly in disease diagnosis and health monitoring. However, due to the similar oxidation potentials of dopamine and uric acid and often coexist with other interferents, conventional electrode materials still face considerable challenges in achieving selective detection of these two analytes. In this work, we endeavor to design a highly selective porphyrin polymer-modified electrode material for the parallel sensing of dopamine and uric acid. First, through DFT calculations, we demonstrated that the adsorption energies of dopamine and uric acid to the two porphyrin monomers in the fluorinated porphyrin conjugated polymer (FeFe-F PCP) are significantly higher compared to those in non-fluorinated porphyrin conjugated polymer (FeFe PCP). Based on this, we further synthesized the FeFe-F PCP by employing a Pd-/CuI-catalyzed Sonogashira coupling reaction between ferrum (II) 5,10,15,20-tetrakis(4-bromophenyl)porphyrin (FePorBr) and ferrum (II) 5,15-di(4-ethynylphenyl)-10,20-diphenylporphyrin (FePor-F), and characterized the resulting material. Subsequently, FeFe-F PCP was employed to modify a GCE for the sensitive and selective sensing of dopamine and uric acid, as well as their simultaneous analysis in biological samples. In individual detection assays, the FeFe-F PCP/GCE effectively detected dopamine and uric acid, achieving linear detection ranges of 1 μM–100 μM and 0.1 μM–80 μM, respectively. The sensor demonstrated low detection limits of 0.16 and 0.03 μM for dopamine and uric acid, correspondingly. Furthermore, simultaneous detection of dopamine and uric acid was achieved within a linear range of 3 μM–100 μM. The developed sensor demonstrated excellent stability, reproducibility, and sensitivity, with low detection limits of 0.33 and 0.30 μM for dopamine and uric acid, respectively. The sensor has been successfully used to detect dopamine and uric acid in human urine samples with recoveries of 98.0%–102.4%, which has great potential for practical applications.
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IONICS
·
2026
·
IF 2.6
Sun Zhiyuan,Chang Chengshuai,Zhang Wan,Zhang Yunqiang,Jing Laiying,Zheng Qiuju,Xiao Hong,Li Mei,Zhang Yanfei
Lithium-sulfur batteries (LSBs) have garnered significant attention due to their high theoretical energy density and low cost. However, the shuttle effect of polysulfides and the low conductivity of the sulfur cathode severely limit their practical application. To address these challenges, a porous carbon framework embedded with cobalt nanoparticles (Co-SPC-CTAB) is successfully prepared by calcining zeolitic imidazolate framework-67 (ZIF-67)/polypyrrole Schiff base polymer under the regulation of cetyltrimethylammonium bromide (CTAB), and it is used as the interlayer material for LSBs. The metal Co derived from ZIF-67 provides abundant adsorption-catalytic active sites, effectively facilitating the adsorption and conversion of lithium polysulfides (LiPSs). In addition, CTAB not only optimizes the pore structure of the carbon skeleton to furnish abundant channels for Li + transport and electrolyte infiltration, but also helps to improve the graphitization degree of the porous carbon framework, thereby further enhancing the electrochemical energy storage kinetics of LSBs. When Co-SPC-CTAB is utilized as the interlayer material, the assembled LSBs can achieve an initial specific capacity of 1063.6 mAh g − 1 at 1 C and still retain 659.5 mAh g − 1 after 500 cycles, with a capacity decay rate of only 0.076% per cycle. Under low-temperature conditions (-10 °C), the battery can exhibit a high initial specific capacity of 931.6 mAh g − 1 at 0.2 C and remain at 724.8 mAh g − 1 after 100 cycles. This study provides a novel strategy for the rational design of transition metal-carbon composite interlayer materials, advancing the development of high-stability LSBs.
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MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 2
·81
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IF 5.3
Zhang Haili,Peng Man,Lu Anjiang,Peng Xishun,Wang Cunwei,Zu Caizhen,Bai Zhongchen
A surface-enhanced Raman scattering (SERS) sensor of Au/Ag nanoparticles (NPs) grown on ZnO/polypyrrole@Poly(3,4-ethylene dioxythiophene)-poly(styrene sulfonate) (PPy@PEDOT:PSS) film for detecting norfloxacin (NFX) residues in milk is presented. The ZnO/PPy@PEDOT:PSS film was prepared by the electrochemical deposition method. Subsequently, Ag NPs and Au NPs were deposited on the surface of ZnO/PPy@PEDOT:PSS film to form a Au/Ag/ZnO/PPy@PEDOT:PSS film by an electrochemical deposition process and the magnetron sputtering process, respectively. Owing to the charge transfer between the SERS substrate and the NFX molecules, this SERS sensor could effectively identify low-concentration NFX molecules with a limit of detection (LOD) of 0.84 nM. Moreover, it could also recognize NFX residues in milk with recoveries of 91.2% to 108.4%. The SERS sensor of Au/Ag/ZnO/PPy@PEDOT:PSS film had a high sensitivity, excellent long-term stability, and significant potential in food safety monitoring applications. Graphical abstract
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PubMed
高影响因子
Journal of Energy Storage
·
2026
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IF 9.8
Qianhui Ren,Bo Jin,Yiyang Li
Lithium‑sulfur (Li-S) batteries possess great theoretical specific capacity and energy density, low cost, and better safety, thus, they are deemed to be very promising batteries. However, they have also low active material utilization, shuttle effect, and volume expansion problems, which have brought serious obstacle to the commercial development of Li-S batteries. These problems can be refined via modifying polypropylene (PP) diaphragm. In this work, we design a heterostructure consisting of nitrogen-doped carbon (NC), metal niobium (Nb), and Co x Se 8 (Co 9 Se 8 and Co 6.8 Se 8 ) to modify PP. According to density functional theory (DFT) calculations, the presence of Nb in Nb-Co x Se 8 /NC results in fortified catalytic conversion capability toward lithium polysulfides (LiPSs). Furthermore, Co x Se 8 adsorbs the LiPSs to a substantial extent, mitigating the shuttle effect, which leads to enhanced use of the active substance during charging and discharging reactions. Simultaneously, the porous architecture mitigates the expansion in sulfur's volume. The electrochemical test consequence depicts that Li-S battery with Nb-Co x Se 8 /NC-PP diaphragm has a primary discharge capacity of 1449 mAh g −1 at 0.5 C, with a capacity retention rate of 68% after 100 cycles. It has also an initial discharge capacity of 868 mAh g −1 at 10 C in the rate performance test. Even with a high areal loading of 3.1 mg cm −2 , Li-S battery delivers an adequate electrochemical functionality. This study provides an idea for constructing heterostructured metal selenides to improve the electrochemical functionality of Li-S batteries.
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MATERIALS & DESIGN
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2026
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IF 7.9
Sun Xuetong,Wang Beibei,Sun Hao,Ren Xiue,Zhou Changren
The application of Selective Laser Melting (SLM) porous titanium scaffolds for patient-specific implants is steadily expanding; however, enhancing their bioactivity to support effective bone repair remains a significant challenge. This study presents a novel composite scaffold designed to enable spatiotemporally controlled release of dexamethasone (Dex) and bone morphogenetic protein-2 (BMP-2), thereby promoting bone regeneration and establishing a pro-healing microenvironment in bone defects. The composite scaffold integrates an outer SLM-Ti framework coated with a Dex-loaded polypyrrole (PPy) film for on-demand release, and an inner OSA-Gel (OG) hydrogel loaded with BMP-2-encapsulated mesoporous bioactive glass nanoparticles (MBGNs) for sustained delivery. The results demonstrate that the controlled dual delivery of BMP-2 and Dex exerts a significant synergistic effect in promoting cellular proliferation and osteogenic differentiation in vitro. These findings provide a theoretical basis for advancing SLM-Ti customized implants toward preclinical application in bone regeneration.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
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IF 9.1
Wei Shi,Yulong Zhang,Zirui Wang,Wenbiao Ma,Xiao Du,Zhong Liu,Xiaogang Hao
Spinel LiMn 2 O 4 is promising for electrochemical lithium extraction from high-Mg 2+ /Li + brines, but Mn dissolution limits its cycling stability. Here, we propose an interfacial synergistic strategy: coating LiMn 2 O 4 with a carbon layer and incorporating sulfonated ionic polymers (Nafion) during electrode fabrication. The tortuous carbon pores, combined with Nafion's enrichment effect, increase the local Mn 2+ concentration near the interface. This accumulation suppresses the Mn 3+ disproportionation reaction in LiMn 2 O 4 crystals, thereby mitigating Mn dissolution. XPS and EPR analyses confirm the effective immobilization of Mn 2+ within the film electrode assembly. The modified film electrode assembly achieves a low Mn loss of 0.336% after 20 adsorption-desorption cycles. This work demonstrates that rational design and optimization of the critical interfacial layer in electrodes can substantially extend the cycling life of LiMn 2 O 4 film electrode assembly, providing a robust material foundation for practical applications.
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