JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 3.1
Yan Wu,Min Fang,Ting Su,Li Zhang,Xuefeng Mao,Rui Ding,Wenzhong Yang,Hui Xu
The development of functional hydrogel composites for environmental remediation represents a prominent research direction in sustainable materials science. In this investigation, a hierarchical (GO- g -P4VP/CdSe)@PAA hydrogel was fabricated through a multi-step synthesis protocol. Graphene oxide-grafted poly(4-vinylpyridine)/cadmium selenide (GO- g -P4VP/CdSe) nanocomposite was initially synthesized via facile hydrothermal crystallization, followed by integration into a polyacrylic acid (PAA) matrix through solution-phase crosslinking. The photocatalytic performance evaluation demonstrated that the composite hydrogel exhibited remarkable visible-light-driven catalytic activity. This enhanced degradation efficiency is attributed to the synergistic effects between the P4VP-mediated charge transfer pathways and the GO/CdSe heterojunction structure, which effectively suppresses photogenerated carrier recombination. The three-dimensional (3D) porous hydrogel architecture further promotes reactive oxygen species generation through improved pollutant adsorption-concentration effects and multiple light-refraction events, underscoring its potential for water treatment applications.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2026
·
IF 4.4
Xu Yuyang,Zhao Yugeng,Liao Jie,Sun Peng,Hu Shoulei,Huo Taotao,Zhang Jinli,Jiang Zhiyi,Li Wei
To enhance the electrochemical performance of high-nickel and cobalt-free cathode material LiNi 0.9 Mn 0.1 O 2 (NM), this study proposes a synergistic strategy integrating high-shear pH-regulated precipitation to fabricate uniform micron-sized structured precursors, with Se-surface modification to enhance the cycling stability. First, the optimal sample NM-8.1 was synthesized via high-shear precipitation with the controlling pH value of 8.1, exhibiting the initial discharge capacity of 208.3 mAh g −1 at 25 °C and 0.1 C (2.7–4.4 V) and the capacity retention of 79.9% after 200 cycles at 1 C. Then, Se-driven surface coating was prepared to improve the cycle stability for NM-8.1, and the optimized NM-1Se shows the initial discharge capacity of 210.7 mAh g −1 (25 °C, 0.1 C, 2.7–4.4 V), the capacity retention of 88.5% after 200 cycles (1 C) and 82.3% after 500 cycles at 5 C. After 200 cycles (1 C), the R ct value equals 60.42 Ω for NM-8.1, whereas 29.08 Ω for NM-1Se. X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SEM), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) analyses indicate that both the uniform, micron-sized structured precursors and the Se modification can promote Li + diffusion, stabilize the lattice oxygen and decelerate the growth of charge transfer impedance, thereby enhancing the cycling stability of the cathode material. This work offers a generalizable paradigm for the synthesis of advanced electrode materials, providing valuable guidelines for optimizing the preparation of other high-energy-density batteries. Graphical abstract Synergistic pH-regulated precipitation and Se surface modification enhance the capacity, cycling stability, and reaction kinetics of cobalt-free Ni-rich cathodes for high performance lithium-ion batteries.
✓ 已验证
产品关联
DOI
高影响因子
Light-Science & Applications
·
2026
·Vol. 15
·期 1
·334
·
IF 24
Li Saihui,Tan Linling,Ma Jianqiang,Kang Shiliang,Gao Chengwei,Dai Shixun,Lin Changgui
Transparent, flexible inorganic-organic composites are essential for next-generation adaptive optics, bio-integrated sensing, and reconfigurable photonics. Despite progress in hybrid material design, achieving a material that is simultaneously flexible and transparent across a broad infrared spectrum remains a fundamental challenge. Here, we report a S 60 Se 40 chalcogenide glass designed with a chain-ring dual-network architecture that overcomes this classic limitation. By integrating a dynamic covalent network of physical cross-links with heavy chalcogen elements (S, Se), this dual-network design suppresses multi-phonon absorption and ensures broadband transparency up to 21 μm, combining these optical properties with an ultralow Young’s modulus ( E ≈ 0.0037 GPa), extreme tensile strain (~650%), and high elastic recovery (~80%). The material further exhibits autonomous self-healing and shape-memory behavior at room temperature. We demonstrate its applicability through IR deformable lenses with tunable focal length and real-time aberration correction, showcasing capabilities in adaptive imaging and wavefront control. This work provides a versatile material platform that bridges the gap between glass-like optical performance and polymer-like mechanics, opening avenues for soft infrared photonics and reconfigurable optical systems.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2026
·Vol. 9
·期 29
·13771-13782
·
IF 5.8
Tian Ying,Yu Shirong,Yu Xuebin,Kang Yongyin
Quantum
dots (QDs) have attracted considerable attention in wearable
electronics owing to their excellent optical properties, including
tunable bandgaps, narrow emission line widths, and high quantum yields.
Nevertheless, the weak chemical interaction between the surface ligands
of QDs and the polar moieties in polymer matrices impairs interfacial
compatibility, leading to ligand desorption and particle aggregation
during electrospinning. Herein, we report a viable strategy for creating
highly luminous QD/polymer nanofibers. Polar solvent processability
was achieved by replacing the pristine ligands with shorter-chain
6-mercaptohexanol (MCH). Through rational optimization of electrospinning
parameters and concentration, the QDs were effectively encapsulated,
achieving a photoluminescence quantum yield (PL QY) of 86.6%. Owing
to the dual protection of the polymer matrix and ligand-engineered
compatibility, the nanofibers exhibited significantly improved stability,
with the QY remaining as high as 84.0% after 36 days under ambient
conditions. Furthermore, a red light-emitting diode was fabricated
based on the nanofiber membranes, exhibiting a color purity exceeding
92.4%. This study provides a practical strategy for developing highly
luminescent and flexible nanofibers, highlighting their great potential
for applications in smart displays, intelligent textiles, and anticounterfeiting.
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2025
·Vol. 15
·期 13
·1010
·
IF 4.3
Qiya Liu,Min Zhang,Xinsheng Yang,Tixian Zeng,Minghu Pan
Topological insulators (TIs) can be widely applied in the fields of ultrafast optical and spintronic devices owing to the existence of topologically protected gapless Dirac surface states. However, the study of ultrafast dynamics of carriers in TIs remains elusive. In this work, the carrier dynamics of Li-doped Bi2−xSe3single crystals were investigated by femtosecond (fs) transient optical spectroscopy (ΔR/R(t) signals). The temperature dependence for the relaxation rates of the electron–electron interaction and electron–phonon coupling is consistent with the results of electrical transport, which indicates the carrier dynamics of TI is highly related with carrier concentrations. We find that the carrier type and concentration of Bi2Se3can be tuned by Li doping, leading to a metal-insulation transition at low temperatures (T ≤ 55 K), indicating that electron–electron interactions are dominant at low temperature. For T > 55 K, electron–phonon coupling in the bulk carriers becomes the main electric transport mechanism.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry C
·
2025
·
IF 5.1
Ya Wang,Min Chen,Manning Hu,Anxin Jiao,Faxin Wang,Xiaolong Zheng,Wanqing Li,Xin Tang,Huicheng Hu
Lead selenide (PbSe) colloidal quantum dots (CQDs) are promising candidates for short-wave infrared (SWIR) photodetectors due to their low-cost fabrication and solution processability. However, conventional ligand exchange strategies, such as treatment with 1,2-ethanedithiol (EDT), usually lead to incomplete defect passivation and undesirable doping characteristics. Here, we developed a hybrid-ligand strategy by combining EDT and zinc iodide (ZnI2) to simultaneously passivate surface defects and modulate the doping type of PbSe CQD films. As a result, the photodetector responsivity improves from 0.04 A W−1 to 0.40 A W−1, and the specific detectivity increases from 3.4 × 1010 Jones to 2.8 × 1011 Jones at 500 Hz under zero bias. The optimized device exhibits a wide linear dynamic range exceeding 114 dB and a fast response time of 7.3 μs. Finally, the infrared imaging applications of PbSe CQD photodetectors were successfully demonstrated. This work highlights the importance of synergistic surface passivation and doping modulation in enhancing the performance of CQD photodetectors.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Ruoli Zhao,Lingxia Li,Yuxing Yan,Xiaoyan Xue,Yuxuan Huo,Tianyu Liu,Hao Wang,Changlong Liu,Shaofang Zhang,Si Sun,Xiao-Dong Zhang
Two-dimensional WSe2 has garnered significant interest owing to its special electronic properties and high catalytic activity. However, the substrate catalytic selectivity of WSe2 has still been poorly studied. In this study, ultrasmall M-WSe2 clusters (M = Cu, Ru, Zn) were designed by a single-atom doping strategy and catalytic selectivity. The Cu-WSe2 and Zn-WSe2 clusters show high antioxidant activity, both about a 7.2-fold enhancement higher than the WSe2 clusters. Meanwhile, Ru-WSe2 and Cu-WSe2 prefer to exhibit catalase-like (CAT-like) activities, about 5.6- and 2.5-fold enhancement after single-atom doping. Ru-WSe2 displays significant peroxidase-like (POD-like) activity with a better affinity than natural HRP, showing a Km value of 0.43 mM. In contrast, pure WSe2 clusters exhibit NADH oxidase-like (NOX-like) activity that catalyzes the regeneration of NAD+. Density functional theory calculations reveal that catalytic selectivity originates from differential electron transfer around different single atoms as well as d-band center modulation. In vitro cell experiments demonstrated that the M-WSe2 clusters can modulate the oxidation–reduction balance through single-atom engineering.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RARE METALS
·
2025
·
IF 11
Huang Huoshuai,Wei Zhidong,Yan Jiawei,Chi Jiasheng,Su Qianxiang,Ma Linlin,Chen Mingxia,Jiang Zhi,Sun Yangzhou,Shangguan Wenfeng
Photocatalytic hydrogen evolution, a promising clean energy conversion technology, faces efficiency limitations due to the mismatched timescales between sub-picosecond bulk photocarrier recombination and microsecond-scale surface reaction. Herein, a dual-strategy involving selenium decoration and NiS x cocatalyst loading was proposed to ameliorate the carrier dynamics bottleneck in CdS-based photocatalysts. The in situ loading of NiS x cocatalysts established an interfacial built-in electric field (BIEF) that enabled spatially oriented carrier separation and transfer, while the selenium modification optimized the light absorption range and Fermi energy level, obtaining an increase in the photocarrier concentration and further modulated the BIEF. Femtosecond transient absorption spectroscopy revealed a dual-channel carrier dynamics enhancement mechanism that BIEF-driven directional charge migration synergistically coupled with NiS x -mediated holes trapping. This synergistic effect achieved an approximately tenfold enhancement of hydrogen evolution rate (461.71 μmol h −1 ) relative to that of bare CdS under visible light (> 420 nm). This study elucidated the regulatory mechanism of element decoration and cocatalyst loading on carrier dynamics, providing an insight for designing high-performance photocatalysts.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Shouzhe Li,Shaofei Guo,Lingxin Sun,Honghao Gao,Chuanli Di,Qingpeng Jia,Ying Jiang,Zhengqing Ye
Rationally designing a lithiophilic layer on the current collector (CC) is essential for realizing the next-generation high energy density of lean lithium metal batteries (LLMBs). However, challenges caused by the nonuniform Li deposition and fragile solid electrolyte interphase (SEI) severely restrict their commercialization. Herein, a lithiophilic Cu 2 Se layer is fabricated on commercial Cu CCs (Cu 2 Se/Cu) by a facile in-situ selenization approach to fulfill stable and homogeneous Li deposition. The unique s -p hybridization between p x / p y orbitals of Li and Se sites triggers electronic structure reconfiguration and forms the abundant lithiophilic interface. Furthermore, the in-situ generated Li 2 Se/LiF-rich SEI layer not only enhances the adsorption capability, but also decreases the ionic diffusion barrier. Consequently, The Cu 2 Se/Cu based symmetric cell show remarkable cycling stability over 3000 h. The full cell with LiFePO 4 cathode maintains an excellent cycling stability of 88.8 % after 400 cycles at 1C. After pairing with the high-loading sulfur cathodes (6.3 mg cm −2 ), the full cell shows a high areal capacity of 4.3 mAh cm −2 with stable cycling performance at an N/P ratio of 2.6. Therefore, this work highlights the potential of Li-dominant s -p orbital hybridization by incorporating Se sites into commercial Cu CCs for designing high-capacity and cycling reversible LLMBs.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Guanjian He,Yujiang Fan,Qiang Niu,Gelimei Zhang,Fenghui Wu,Dandan Chen,Chun Lv,Jie He,Haiying Lin,Minjie He
Elemental mercury (Hg 0 ) removal from coal combustion flue gas remains a significant challenge, primarily due to the limited uptake capacity and slow capture rate of commercial sorbents. Herein, the flower-like heterojunctions comprising ZIF-67-derived CoSe 2 uniformly dispersed in the layered g-C 3 N 4 (xCoSe 2 -CN), which were innovatively synthesized through an in-situ growth method followed by thermal selenization. The optimized 4CoSe 2 -CN exhibited exceptional Hg 0 capture performance, with an equilibrium capacity of 32.44 mg/g and an average rate of 10.47 μg/g/min, surpassing the most reported heterojunction materials. Furthermore, the satisfactory Hg 0 removal efficiency (>99 %) was maintained over a broad temperature window (25–140 °C) and under complex flue gas components. Notably, the sorbent demonstrated excellent recyclability, sustaining an average Hg 0 capture rate exceeding 90 % throughout five consecutive adsorption-regeneration cycles. The superior performance primarily originated from the heterojunction structure and the presence of under-coordinated selenide (Se 2 2− ). Interfacial electron redistribution modulated the electronic structure of CoSe 2 , inducing an upshift of d/p band centers and a reduced ∆ d-p band center gap, thereby significantly enhancing Hg 0 oxidation capability. Moreover, the Se 2 2− sites functioned as the dominant active centers for oxidizing Hg 0 to Hg 2+ and as binding sites for Hg 2+ to form HgSe. This work proposes an innovative strategy for designing MOF-derived heterojunction sorbents with modulated electronic structures to enable efficient Hg 0 capture.
✓ 已验证
产品关联
DOI
高影响因子
IONICS
·
2025
·
IF 2.6
Zhao Chenhao,Fan Jianming,Hu Zhibiao,Tu Fengzhang
Nickel selenides’ structural and composition diversity offers promising avenues for advanced battery anodes, yet their practical implementation faces persistent challenges of structural instability and sluggish kinetics. Addressing these limitations, We developed a spatially confined architecture using a template-directed hydrothermal method. This approach readily produced uniform Ni 3 Se 4 nanoparticles (size ~ 110 nm) encapsulated within conductive carbon nanoplates. Time-dependent XRD analysis confirms continuous selenization-driven phase evolution, while XPS/TGA verify the composite (26.8 wt% carbon) comprises Ni 2+ , Se 2 2− , and Se 2− species. This dual-role design—where carbon simultaneously serves as electron highway and volume-change buffer—enables breakthrough lithium storage performance: 586.2 mAh g −1 after 100 cycles (0.2 A g −1 ) with exceptional 375.5 mAh g −1 retention at ultrahigh 5 A g −1 . Electrochemical analysis demonstrates carbon spacers reduce charge-transfer resistance by > 40% versus bare counterparts. The strategically engineered interface provides critical insights for stabilizing conversion-type anodes. This is significant because, although the sodium storage performance remains challenging (167.9 mAh g −1 after 100 cycles), our study reveals fundamental differences when nickel selenide/carbon composites are employed as its anode materials.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Xue-Hui Shi,Zhendong Zhu,Changlin Shen,Ya Li,Zhuang Qian,Yonghao Wu,Huifeng Chen,Qing-Qing Ye,Chaojie Hu,Yifan Song,Lei Wang,Zhimou Yang,Wenjie Ren
Fluorescent semiconductor quantum dots (QDs) had the potential to revolutionize biological imaging, but their applications were limited by the difficulties of obtaining biocompatible and high fluorescent-quality QDs due to the difficulty in manipulating surface properties. Here, we explored a facile and effective ligand exchange approach, which enabled sequential surface functionalization and phase transfer of QDs while maintaining QDs fluorescence intensity, size and morphology. Nitrosonium tetrafluoroborate (NOBF 4 ) was employed to substitute for the original organic ligands attached to the QDs surface, stabilizing the QDs in polar and hydrophilic media N , N -dimethylformamide for 60 days without aggregation or precipitation. This method was applicable to a wide range of QDs of different compositions, fluorescence emission wavelengths and sizes. The obtained hydrophilic QDs can subsequently be further functionalized with various capping molecules, which can endow the different surface functionalization of QDs according to the modified molecules employed. Among these, Ag 2 Te QDs after NOBF 4 treatment could undergo sequential surface functionalization, which achieved high-quality in vivo fluorescent imaging. This work offered a versatile ligand exchange strategy for QDs surface functionalization and was a significant step toward controllably engineering the QDs surface properties.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）