EUROPEAN POLYMER JOURNAL
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2025
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IF 6.3
Xiaoguang Qiao,Mengna Feng,Mengjie Zhou,Wenjie Zhang,Yanjie He,Ge Shi,Xinchang Pang
The development of efficient and environmentally benign strategies for controlled radical polymerization remains a critical challenge in polymer chemistry. Herein, we report a novel approach utilizing phosphorus and nitrogen codoped carbon dots (PN-CDs) as catalysts for near-infrared (NIR) light-induced atom transfer radical polymerization (ATRP) in aqueous media. Owing to the absorption in the near-infrared (NIR) region, PN-CDs can generate electrons under excitation by an 808 nm laser, thereby initiating aqueous-phase atom transfer radical polymerization (ATRP) through electron transfer with Cu(II) ions. The aqueous-based NIR-ATRP process demonstrates remarkable versatility, producing well-defined polymers with narrow molecular weight distributions ( Đ <1.25). And ∼ 90 % monomer conversion could be achieved within 30 min, illustrating the high polymerization efficient of NIR-ATRP in aqueous media. Excellent temporal control of the polymerization and the chain fidelity of polymers were illustrated by light-switching experiment and chain extension, separately. The polymerization was also performed in the presence of opaque barrier (i.e. pork skin) to show the penetration advantage of NIR-ATRP. Moreover, the penetrating NIR-ATRP was further applied for deep-layered healing. This work establishes a sustainable platform for precision polymer synthesis, with potential applications in functional hydrogels and functional coatings, while advancing the design of carbon-based nanomaterials for photo-polymerization technologies.
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高影响因子
BIOSENSORS & BIOELECTRONICS
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2025
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IF 10.5
Zenghao Xia,Fabo Guo,Xueyin Chen,Fuchao Zhang,Zhize Zhang,Jianfeng Li,Liang Huang,Zhen Xu,Xin Ming,Yuxin Peng
Bodily fluids harbor critical biomarkers that are closely associated with human health. Analyzing their constituents provides valuable health-related insights, serving as a pivotal way for early diagnosis and health assessment. However, traditional wearable biochemical sensing solutions based on digital circuits face issues such as complex manufacturing processes, poor wearing comfort, and difficulties in long-term power supply, thereby limiting their utility in home care and chronic disease monitoring. This work designs a multi-channel, battery-free and wearable fabric biochemical sensor. Activated within magnetic field environment, the sensing fabric transduces biochemical information into electric signals that modulate the resonant circuit parameters, finally shifting the resonant frequency of the circuit. The multiple-ion sensing performance of fabric biochemical sensor was validated through sweat monitoring during physical exercise. The proposed fabric sensor has excellent sensitivity, reliability and minimal cross-channel coupling, offering a promising solution for real-time and routine monitoring of body fluids.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Wei Zhao,Shao-Hua Luo,Yicheng Lin,Guodong Hao,Rui Huang,Pengyu Li,Ge Wang,Jun Cong,Shengxun Yan,Lixiong Qian
P2-type Fe/Mn base oxide cathodes arouse much attention in sodium-ion batteries due to their high theoretical specific capacity, economic feasibility , and environmental friendliness . However, detrimental phase transitions and irreversible oxygen release result in continuous capacity decay, thereby posing a significant challenge to the simultaneous achievement of high capacity and high stability. To address this challenge, the optimal Na 0.67 Mg 0.06 Li 0.06 Fe 0.28 Mn 0.6 O 2 (NMLFM-2) cathode material , was developed in this study, which realizes a complete solid solution process and a stable oxygen redox reaction within the voltage window of 2–4.2 V. The introduction of Mg and Li realizes the “rich-Na e ” effect, which raises the valence state of Mn, thereby stabilizing the oxygen redox reaction and reducing the Jahn-Teller effect of Mn 3+ . The elimination of the unfavorable P2 to OP4 phase transition achieves a complete solid solution reaction, enhancing the structural stability and Na + fast reaction kinetics of the material. Thus, the NMLFM-2 cathode delivered a high initial specific capacity of 160.3 mAh g −1 at 0.1C within the voltage range of 2–4.2 V, realizing an impressive cycling performance with 89.3% capacity retention after 200 cycles at 1C. This study presents a novel pathway for simultaneously achieving structural stability and reversible oxygen redox, thereby enabling the trade-off between cathode capacity and stability in Fe/Mn-based layered oxides.
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高影响因子
CERAMICS INTERNATIONAL
·
2025
·Vol. 51
·期 28
·59375-59382
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IF 5.6
Chunxiao Lu,Pengyu Li,Ye Zhao,Qiwei Zhang,Shuai Li,Yong Li,Zhongzhi Wang,Liwen Zhang,Xihong Hao
Ferroelectric transparent ceramics serve as pivotal functional materials with inherently tunable polarization. However, addressing the intrinsic trade-off between high optical transparency and robust ferroelectricity remains critical for breakthroughs in multifunctional optoelectronic coupling applications. Herein, designing relaxor ferroelectric transparent ceramics via rare-earth doping is an effective strategy, which refines grain size, introduces polar nanoregions and induces high-symmetry phase structure. It synergistically achieves high transmittance and polarization, laying the foundation for one-structure multi-photoelectric-effects coupled applications. Accordingly, superior energy storage density ( W tot = 10.5 J/cm 3 , W rec = 7.0 J/cm 3 ) and optical transmittance (78 % at 780 nm) are simultaneously realized in Eu 3+ /La 3+ co-doped K 0.5 Na 0.5 NbO 3 (KNN) ceramics, along with excellent photochromic-induced transmittance and luminescence reversible modulation (ΔAbs = 19.35 %, ΔR t = 92.5 %), outperforming previously reported KNN-based multifunctional ceramics in terms of comprehensive performance. This study proposes a viable approach to pave the way for constructing smart materials that can modulate photoelectric performance while extending their functionality.
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高影响因子
Journal of Energy Storage
·
2025
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IF 9.8
Lintao Dong,Shengrui Cui,Youjun Xing,Furui Ma,Yanqing Wang,Deye Sun,Yongcheng Jin
The increasing demand for lithium-ion batteries with high energy density has driven research into olivine-type high-voltage cathode materials . However, the development of these materials is hindered by two significant challenges: poor electronic conductivity and a low lithium-ion diffusion coefficient . Herein, carbon-coated LiCoPO 4 materials were synthesized using precursors with different space groups via a solvothermal method, employing a binary mixture of diethylene glycol (DEG) and water as solvents. The influence of the solvent ratio on space group regulation, structural characteristics, and electrochemical performance was systematically investigated. When the solvent ratio (V DEG : V H2O ) is <2.3, the resulting cathode material exhibits a pure phase belonging to the Pnma space group. Conversely, when the solvent ratio exceeds this threshold, a metastable phase corresponding to the Pn 21 a space group is formed. Electrochemical testing revealed that the performance of LiCoPO 4 materials in the Pnma space group significantly surpasses that of materials in the Pn 21 a space group. Notably, the LiCoPO 4 /C material synthesized with a V DEG : V H2O ratio of 2.3, which crystallizes in the Pnma space group, demonstrates the most outstanding performance among the samples studied. This material achieves a specific discharge capacity of 157.1 mAh g −1 at 0.1C and 91.9 mAh g −1 at 2C. Additionally, the lithium-ion diffusion coefficient of this material reaches 1.01 × 10 −14 cm 2 s −1 . In summary, the electronic conductivity and lithium-ion diffusion coefficient of LiCoPO 4 were effectively enhanced through carbon coating and precise control of the crystal phase of the primary grains. This study provides valuable insights into strategies for further improving the performance of polyanionic-based cathode materials, offering a foundation for future advancements in high-energy-density lithium-ion batteries.
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高影响因子
JOURNAL OF LUMINESCENCE
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2025
·
IF 3.6
Yuwen Zeng,Yiyang Xv,Junwei Pan,Rongfei Wei,Xiangling Tian,Fangfang Hu,Hai Guo
The pursuit of broadband near-infrared (NIR) phosphors with superior luminescent efficiency and thermal stability is vital for next-generation NIR light sources. Leveraging a synergistic strategy of cation substitution and Cr 3+ content modulation, a series of Y 3- x Sc x Ga 3- y MgSiO 12 : y Cr 3+ phosphors were designed, exhibiting enhanced NIR emission covering 650–1000 nm, with a broadened full-width at half maximum and a controllable redshift in emission peak. Notably, the synthesized phosphor achieves an internal quantum efficiency of 66.9% and retains 79.5% of its initial emission intensity at 423 K. When integrated with a 450 nm blue light-emitting diode (LED) chip, the resulting NIR LED delivers a high photoelectric conversion efficiency of 9.87% at 10 mA and an output power of 48.58 mW at 300 mA. These results highlight the great potential of this phosphor for multifunctional NIR applications, including bio-imaging, night vision, and nondestructive testing.
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高影响因子
Journal of Materials Chemistry C
·
2025
·Vol. 13
·期 44
·22186-22196
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IF 5.1
Shuang Wu,Yongqi Zhu,Nan Zheng,Hui Liu,Yiwen Zhu,Xinyue Li,Yifan Chen,Daqin Chen
Near-infrared (NIR) luminescent materials are promising NIR light sources for multifunctional applications; providing a strategy to tailor the emission and enhance the performance of NIR phosphors is crucial. Herein, a green HF-free synthetic strategy is realized to tune the NIR emission advantageously by substituting on the adjacent octahedral, completely different from breaking the d–d parity forbidden transitions of Cr3+ through conventional lattice distortion. Broadband NIR phosphor K2Na1−xLixAlF6:Cr3+ with excellent thermal quenching resistance is prepared using the hydrothermal method. Controllable emission tuning from 726 to 765 nm and broadening full width at half-maximum from 105 to 130 nm, is achieved by substituting Li+ for Na+, resulting from weakening the crystal field and increasing electron–phonon coupling. Lithium ions play a critical role in suppressing nonradiative relaxation of the emission centers, thereby significantly enhancing the emission intensity of K2NaMF6:Cr3+ (M = Al, Ga, In) phosphors. The as-fabricated prototype NIR phosphor-converted light-emitting diode device, exhibits significant promise in the fields of night vision and information encryption. This study provides an effective design strategy for developing broadband NIR luminescent materials with high efficiency and good thermal stability.
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高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Fangli Yang,Xu Zhao,Ken Aldren S. Usman,Degang Jiang,Joselito M. Razal,Jianhua Wang,Jinlong Tao,Jizhen Zhang
Ti 3 C 2 T x MXene fiber has excellent electrical conductivity and energy storage properties, making it ideal for manufacturing fiber-shaped supercapacitors (FSCs). However, optimizing the MXene fiber electrode structure to improve mechanical properties and maintain maximum energy storage performance remains a critical challenge. This report presents a coaxial structure of MXene@carbon nanotube (CNT) fiber and realizes the regulation of fiber properties. Compared with MXene/CNT hybrid fibers with the same ratio, MXene@CNT coaxial fibers offer a higher electrical conductivity (4553.93 ± 108.15 S cm −1 ) and mechanical strength (tensile strength of 147.51 ± 13.02 MPa). This can be attributed to the good force transfer and intact of conductive channels in the continuous phase in MXene and CNT layers. Notably, the CNT sheath has negligible effect on the diffusion of electrolyte and the coaxial fiber demonstrates a higher specific capacitance of up to 1268 F cm −3 at high current density of 1 A cm −3 , along with excellent rate performance and long-cycle stability. When assembled into supercapacitors, the MXene@CNT coaxial fiber achieves a high energy density of ∼11.61 Wh kg −1 and a power density of ∼6007.14 W kg −1 . This study provides insight into structural engineering for the large-scale preparation of high-performance MXene-based composite fibers.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Wenliang Zhang,Dongsong Wei,Yafei Shi,Ting Lu,Zhen Zhang,Yuanpeng Wang,Shuyi Li,Ana Sofia Oliveira Henriques Moita,Zhiwu Han,Yan Liu
Photothermal superhydrophobic surfaces, featuring rapid water removal, delayed ice formation, and photothermal deicing capabilities, have emerged as promising anti−/de-icing surfaces. However, their practical application remains constrained by poor mechanical durability, complex fabrication processes or the need for hazardous fluorinated additives. Inspired by robust honeycombs and superhydrophobic Bauhinia variegata leaves, a robust bioinspired photothermal icephobic surface (BPIS) is prepared through laser-etching integrated hexagonal microframes and micropillar arrays as protective and light-absorbing armor, followed by spraying photothermal superhydrophobic coating containing irregular nanosheets. The laser-etched microstructures obtain strong interfacial bonding between the coating and substrate through mechanical interlocking effect and act as ‘armor’ to prevent the coating from being worn and peeled off. Even after 20 m abrasion, BPIS can maintain stable superhydrophobicity, static delayed icing time, dynamic anti-icing capability against 0 °C water droplets and photothermal de-icing performance at −15 °C. Notably, when applied to ice-prone surfaces such as rooftops, BPIS retains effective dynamic anti-icing and photothermal deicing functions. Furthermore, it demonstrates exceptional corrosion resistance, chemical stability, antibacterial adhesion, and self-cleaning properties. Our design strategy can guide the development of other materials that need to retain effective anti-icing/de-icing abilities in harsh operating environments.
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高影响因子
Journal of Materials Chemistry C
·
2025
·Vol. 13
·期 47
·23612-23619
·
IF 5.1
Wenqiang Li,Qihao Li,Yuehua Chen,Cailing Liu,Wenjing Zhong,Xiang Zhang,Yayun Zhou,Tingting Deng,Jiantao Lü,Ting Fan
Near-infrared phosphor-converted light-emitting diodes (pc-LEDs), as the core light source for smart broadband near-infrared spectroscopy, face critical challenges in balancing luminous efficiency and thermal stability. Herein, we report a Cr3+-doped fluoride phosphor AlF3:Cr3+ with efficient broadband near-infrared (NIR) emission. Under blue-light excitation, AlF3:Cr3+ exhibits a broadband NIR emission centered at 749 nm with a full width at half maximum (FWHM) of 87 nm. Notably, it shows excellent thermal stability, retaining 86.28% of its room-temperature luminescence intensity at 423 K (150 °C). This superior anti-thermal quenching property is attributed to the weak electron–phonon coupling in its crystal structure, characterized by a low Huang–Rhys factor (S = 2.15). By integrating this phosphor with a blue LED chip, we fabricated a NIR pc-LED device with a photoelectric conversion efficiency of 2.2%@20 mA. The device would demonstrate significant advantages in diverse fields, including nondestructive testing, biomedical imaging, and intelligent security, highlighting the great potential of AlF3:Cr3+ for industrial applications.
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高影响因子
IONICS
·
2025
·Vol. 31
·期 12
·13067-13075
·
IF 2.6
Li Yi-Wei,Zhou Kai-Ge
Conventional proton-exchange membranes (PEMs) like Nafion face conductivity limitations (~ 0.1 S·cm⁻¹). This study explores thermal compression of vermiculite membranes (VMs) as a potential alternative. Controlled thermal compression at 300–500 °C reduced interlayer spacing and improved nanosheet alignment, which make nanochannel dimensions approaching the critical scale for ballistic transport. Consequently, proton conductivity is significantly enhanced. The membrane treated at 400 ℃ achieved a proton conductivity of 1.77 S·cm⁻¹ at 90 °C—far exceeding Nafion under identical conditions. However, temperatures at 500 °C appeared to induce crystallization, increasing proton transport barriers. This suggests that there is a trade-off between the interlayer spacing and the crystallinity. These findings indicate that thermally engineered 2D membranes could offer new pathways for high-conductivity PEM design.
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高影响因子
JOURNAL OF MOLECULAR STRUCTURE
·
2025
·
IF 4.7
Xianze Li,Yue Zhong,Tao Su,Yang Li,Wenming Wang,Jing Xie,Chao Wang,Yan Pan,Xiantao Wei,Yong Li
The advancement of White light emitting diodes (WLEDs) drives the demand for efficient red-emitting phosphors with superior thermal stability. In this paper, a series of Sr 3 TaGa 3 Si 2 O 14 : Sm 3+ phosphors with excellent thermal properties were successfully synthesized via high-temperature solid-phase method. The crystal structure, luminescent properties and thermal stability of the samples were systematically investigated. Under 402 nm near-ultraviolet excitation, the fluorescence emission spectra of Sr 3 TaGa 3 Si 2 O 14 : Sm 3+ with different doping concentrations were obtained, and the optimal Sm 3+ doping concentration was found to be 0.03 mol. Co-doping with M ( M = Li + , Na + , and K + ) as charge compensation ions can improve the luminescent performance of Sr 3 TaGa 3 Si 2 O 14 : Sm 3+ . Furthermore, the luminescent intensity ( 4 G 5/2 → 6 H 7/2 ) of this phosphor at 420 K remains at 74.2 % of its initial temperatures (300 K), demonstrating excellently thermal stability. The temperature sensing characteristics based on Fluorescence Intensity Ratio (FIR) technique was investigated and the maximum absolute and maximum relative sensitivities of the Sr 3 TaGa 3 Si 2 O 14 : 3 mol% Sm 3+ samples were 6.52 % and 0.80 %, respectively. In addition, the quantum yield of Sr 3 TaGa 3 Si 2 O 14 : 3 mol% Sm 3+ , 3 mol% Na + was measured to be 44.0 %, and the WLEDs fabricated with it could emit bright white light with CIE chromaticity coordinates of (0.28, 0.33). Therefore, the synthesized phosphors have great potential for applications in optical temperature measurement and solid-state lighting.
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高影响因子
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