Journal of Energy Storage
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2026
·
IF 9.8
Yuzhu Qian,Hui Xu,Xiaohua Cai,Jujing Zhang,Lijuan Chen,Xiongwei Wu,Xianyou Wang,Xuejun Zheng,Wenyuan He,Diye Wei,Bei Long
Layered Bi 2 Se 3 has been designed as a promising anode material for aqueous batteries due to its large interlayer spacing and high specific capacity. However, Bi 2 Se 3 is a topological insulator, its interior presents an insulating state, which results in a slow reaction dynamics. Moreover, it is found that unmodified Bi 2 Se 3 has a poor structural stability during charging/discharging. Hence, we design conductive polypyrrole coated hollow Bi 2 Se 3 particles (Bi 2 Se 3 @PPy) to solve these problems. Various experiments show that the PPy possesses bifunctional features and enhance the electrical conductivity and structural stability of Bi 2 Se 3 . The hollow structure of Bi 2 Se 3 exposes abundant active sites and shortens the diffusion paths of Mg 2+ . As a result, at current density of 0.2 A g −1 , Bi 2 Se 3 @PPy offers high discharge capacity of 134 mA h g −1 in aqueous magnesium ion battery. More importantly, Bi 2 Se 3 @PPy//Mn 3 O 4 full cell presents discharge capacity of 66 mA h g −1 at 0.5 A g −1 . Furthermore, Bi 2 Se 3 @PPy exhibits good electrochemical performance in ammonium ion battery. This paper provides a feasible strategy to enhance the structural stability and ionic/electronic conductivity of topological insulator.
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高影响因子
Journal of Environmental Chemical Engineering
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2026
·Vol. 14
·期 1
·120898
·
IF 7.2
Jing Wang,Guangxi Wang,Xiaoyan Ji,Zhiwen Chang,Yu Wang,Wenguang Chen,Leilei Zhang,Shuwen An,Yi Gu,Jun Liu
The mining, processing, and refining of rare-earth ores generate Th-rich radioactive wastewater, making its effective treatment critical for environmental protection and public health. In this study, mesoporous MoX 2 -α-ZrP (X = S, Se) composite powders were synthesized for Th(IV) adsorption from aqueous solutions. Under the conditions of [Th(IV)] initial = 50 ± 2 mg·L −1 , pH initial = 3, temperature = 298 K, and a contact time = 1440 min, the larger pore volume and pore width of the composites, compared with α-ZrP, enhanced the adsorption capacity ( q e ) of MoSe 2 -α-ZrP and MoS 2 -α-ZrP to 146.3 ± 7.4 mg·g −1 and 143.7 ± 2.5 mg·g −1 , respectively. Higher pH, [Th(IV)] initial, and temperature further enhanced Th(IV) adsorption. Notably, MoX 2 -α-ZrP removed Th(IV) from simulated leaching solution of monazite or bastnaesite and selectively adsorbed Th(IV) in the presence of co-existing ions. Thermodynamic and kinetic analyses confirmed a spontaneous, endothermic, and homogeneous chemisorption behavior. The Thomas and Yoon-Nelson models accurately described dynamic column Th(IV) adsorption, and increases in adsorbent mass, together with decreases in influent Th(IV) concentration, and reduced flow rate extended both breakthrough and saturation times. Mechanistic studies revealed Th(IV) coordination with oxygen-containing groups, ion exchange with -OH, and electrostatic interaction with phosphate groups. Results from our study can help explore the adsorption behaviors and mechanisms of Th(IV) on potential MoX 2 (X = O, S, Se)-based or α-ZrP-based materials for treating Th-rich radioactive wastewater.
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Journal of Energy Storage
·
2026
·
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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Energy Storage Materials
·
2026
·
IF 20.2
Xin Gao,Ya Chen,Bin Fang,Xiaodong Chen,Runjing Xu,Tao Meng,Ling Huang,Peiyi Ji,Long Bao,Hongchao Sun,Lifeng Cui,Gang Tan,Guoxiu Wang
The electrochemical performance of all-solid-state lithium batteries (ASSLBs) can be markedly enhanced by resolving issues arising from cathode conductive additives (CCAs), including excessively high interfacial impedance, inadequate compatibility with solid electrolytes, and insufficient adaptability to the composite cathode. Here, the embedding of ultra-thin and ultra-stable MoS 0.25 Se 1.75 nanosheets onto a vapor-grown carbon fibers (VGCF) substrate are successfully fabricated (MoS 0.25 Se 1.75 @VGCF) as CCAs within a LiCoO 2 -based composite cathode for Li 6 PS 5 Cl (LPSC)-based ASSLBs. This advanced nanostructure design not only effectively suppresses the presence of hydroxyl groups (-OH) on the surface but also induces a synergistic effect that builds up a strong internal electric field and simultaneously lowers the Li + ions migration energy barrier, which can mitigate the occurrence of LPSC degradation at the CCAs|LPSC interface while establishing dual electron/Li + ion transport pathway, thus strengthening the compatibility of composites cathode interfaces for the improvement of electrochemical performance. Consequently, the assembled LCO|MoS 0.25 Se 1.75 @VGCF|LPSC-based ASSLBs exhibit exceptional performance, demonstrating a high discharge capacity of 131.24 mAh·g -1 at 0.1C, a high coulombic efficiency of 92.34%, and an excellent capacity retention of 90.41% after 1000 cycles at 0.5C. This finding introduces a novel synergistic strategy, which offers a fresh approach to mitigate interfacial instability in composite cathodes, thereby further facilitating the commercialization of ASSLBs.
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Nature Photonics
·
2026
·
IF 38.1
Shen Wan-Shan,Xie Li-Ming,Fei Wen-Long,Gu Xin,Wang Ye,Li Hua-Hui,Liu Wei-Zhi,Wang Yun-Jun,Su Wen-Ming,Wang Ya-Kun,Liao Liang-Sheng
Cadmium (Cd)- and lead (Pb)-free quantum dot light-emitting diodes (QD-LEDs) are critical for next-generation, environment-friendly electroluminescent displays. However, Cd/Pb-free QD-LEDs remain severely limited in operational stability, particularly in the deep-blue region. For emission below 460 nm, the high hole injection barrier inhibits carrier balance, thus requiring high bias to reach practical levels of luminance. Here we develop a dipole-assisted strategy to enable long-range ordering and energy adjustment of ZnTeSe QDs—achieved via the surface reconstruction using 4-aminothiophenol—to reduce the hole barrier in the deep-blue region. The intramolecular dipole deriving from the aromatic-bridged amine and thiol moieties of 4-aminothiophenol ensures the ordering arrangement of QD films and reduces the energy between the vacuum and the Fermi level, leading to the upshift of both valence and conduction band without affecting the deep-blue emission. As a result, devices emit at 452 nm with a peak external quantum efficiency of 23.6% at luminance values of 800 cd m −2 and maintain an external quantum efficiency of 22% at 1,000 cd m −2 . Moreover, our LEDs achieve a calculated operational half-lifetime exceeding 50,000 h at an initial luminance of 100 cd m −2 . Our results establish a benchmark for eco-friendly QD-LEDs towards practical applications in display technologies.
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Nature Protocols
·
2026
·
IF 18.4
Zhang Yingying,Wu Yingnan,Jing Zehao,Chen Xiaoqiang,Li Mingle,Peng Xiaojun
Photodynamic therapy using an appropriate photocatalyst results in the production of cytotoxic reactive oxygen species for tumor ablation. However, the inherent O 2 dependence of conventional photodynamic therapy limits its clinical translation. To overcome this challenge, here we developed a selenium-substituted Nile blue derivative (ENBSe) as a versatile O 2 -independent photocatalyst. Under near-infrared light irradiation, ENBSe can drive the biological oxidation of NADH to NAD + while simultaneously triggering the cascade reduction of cytochrome c (Fe³⁺ to Fe²⁺), even in the absence of O 2 . To improve tumor specificity and targeting, we further developed a conditionally activatable photoredox catalysis (ConAPC) system. ENBSe is covalently attached to 4-nitrobenzyl chloride via a carbonic anhydride bond, wherein the nitro group can be specifically cleaved by nitroreductase (NTR), an enzyme overexpressed in hypoxic tissues. Such ConAPC design prevents reaction with NADH and quenches the fluorescences of ENBSe, which means that the drug molecule, ENBSe–NTR, is catalytically inactive. ENBSe–NTR is, to our knowledge, the first tumor microenvironment-responsive ConAPC molecule that enables O 2 -free, tumor-specific catalytic therapy. By replacing the 4-nitrobenzyl chloride group, it might be possible to target cells with different microenvironmental conditions. This protocol presents a standardized workflow encompassing the synthesis of ENBSe and its application for photocatalytic modulation of cellular electron flow in the mitochondrial electron transport chain via an O 2 -independent mechanism of action. The outlined protocol specifies a synthesis period of ~4 d for ENBSe, ~4 h for photoredox spectroscopic characterization and 4–5 weeks for photodiagnostic assessment in cancer cell and mice models.
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PubMed
高影响因子
JOURNAL OF NANOBIOTECHNOLOGY
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2026
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IF 15
Jinfan Zhou,Gaohua Li,Yunze Xu,Wenhui Ma,Xuehua Zhang,Haitao Yuan,Zilin Tan,Zhenghao Li,Hongwei Yu,Zhenzhao Xu,Zhiqiang Yu,Jiafei Xi,Chaoping Fu,Yanan Wang
The treatment of solid tumors with chimeric antigen receptor natural killer (CAR-NK) cell therapy confronts significant barriers, notably poor cellular infiltration and a highly immunosuppressive tumor microenvironment (TME). To overcome these challenges, we developed selenium-containing polymer nanoparticles (ManNAl-SeNPs) loaded with dibenzocyclooctyne (DBCO)-modified mannose. Metabolic glycoengineering metabolic glycoengineering (MGE) enabled efficient labeling of exogenous DBCO on azide (N 3 ) groups on CAR-NK cells, establishing a bioorthogonal click chemistry targeting strategy, significantly improving the anti-tumor activity of azide-CAR-NK (N 3 -CAR-NK) cells, including recognition specificity, migration efficiency, and cytotoxic activity. Herein, ManNAl-SeNPs with ultra-sensitive responsiveness of diselenide bonds, in the acidic TME, diselenide bond releases seleninic acid, acting as an immune checkpoint inhibitor while augmenting CAR-NK cells cytotoxicity. In vivo, the combination of ManNAl-SeNPs with N 3 -CAR-NK cells significantly increased targeting capacity and invasiveness. This study presents a TME-responsive nanoplatform with artificial bio-orthogonal combination strategy that effectively enhance the migratory ability and accumulation of CAR-NK cells for potent antitumor therapy.
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高影响因子
Materials
·
2026
·Vol. 19
·期 13
·2835
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IF 3.7
Yunfeng Shi,Song Yang,Hanhan Liu,Zhou Li,Longjiang Wang,Jun Tan,Weijie Chen,Ting Wang,Aiming Zhang,Bing Lian
To address the issue of radioactive waste generated by the large-scale promotion and use of nuclear energy, safety evaluations of disposal sites in various surrounding rocks are essential. These evaluations are a prerequisite for ensuring the long-term safe disposal of radioactive waste. This study focuses on the blocking capacity of clay rocks concerning the advection–dispersion behavior of representative radionuclides such as137Cs,79Se, and99Tc. It further examines the effects of competitive adsorption that arise when these three radionuclides coexist. (Since79Se is difficult to obtain,75Se was used as a substitute nuclide. In the mixed-nuclide experiments, the stable isotope Re was used to replace99Tc.) The experimental findings revealed that competitive adsorption can significantly reduce the adsorption capability of clay rocks for137Cs and79Se, altering the adsorption mechanism. During the advection–dispersion process, the weak adsorption sites of137Cs and79Se on clay rocks become active after the strong adsorption sites are preferentially occupied, resulting in a decline in both adsorption quantity and rate. In the case of99Tc, competitive adsorption weakens the effect of anion repulsion, leading to a reduction in the immobile liquid regions (θim).
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Small
·
2026
·
IF 11.8
Shaoqin Wang,Chunying Pang,Qingqiao Fu,Xin Liu,Jiye Zhang,Jiong Yang,Jun Luo
Layered GeBi 2 Se 4 exhibits pronounced anisotropic thermoelectric properties, yet its Seebeck coefficient is constrained by a low density of states effective mass. In this work, by capitalizing on its structural anisotropy through the growth of high-quality single crystals, we demonstrate superior thermoelectric performance along the c-axis compared to the ab-plane. Subsequent Te alloying at the Se site induces band convergence, increasing the density of states effective mass near the Fermi level, while simultaneously enhancing phonon scattering through mass and strain fluctuations. Coupled with optimized carrier concentration via Bi doping, these synergistic effects yield a peak zT of ∼0.9 at 675 K along the c-axis in n-type Ge 0.92 Bi 2.08 Se 2.4 Te 1.6 single crystals, representing enhancements of ∼280% and ∼160% over pristine polycrystalline and single-crystalline GeBi 2 Se 4 , respectively. Our work underscores the potential of engineering anisotropy in single-crystal IV-V-VI chalcogenides for high-performance thermoelectrics.
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高影响因子
MACROMOLECULES
·
2026
·Vol. 59
·期 17
·9321-9332
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IF 5.7
Yao Zhenhao,Yang Richie,Yang Shengfu,Zhang Kan
To develop highly thermally stable thermoset materials and achieve a deep understanding of the chemical structure–physical property relationship of polybenzoxazines, a series of chalcogen-containing bis-benzoxazine monomers ( PH-O , PH-S , PH-Se , and PH-Te ) were designed and synthesized in the current work. The chemical structures of chalcogen-containing bis-benzoxazines were characterized by Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance, and high-resolution mass spectrometry. In addition, their polymerization behaviors were systematically investigated using differential scanning calorimetry, in situ FT-IR spectroscopy, and computational calculations. The results revealed that benzoxazines incorporating heavy chalcogen atoms with lower electronegativity exhibit a pronounced tendency toward ring-opening polymerization at lower temperatures. Moreover, the thermal degradation and flame retardant characteristics of the resulting chalcogen-containing polybenzoxazine thermosets were evaluated using thermogravimetric analysis and microscale combustion calorimetry, respectively. Notably, the chalcogen-containing polybenzoxazines displayed significantly reduced flammability compared to those polybenzoxazines without chalcogen atoms. These findings provide valuable insights into the effect of chalcogen atoms on the polymerization mechanism and thermal properties of polybenzoxazines, presenting a promising strategy for the development of thermosets with low curing temperature as well as enhanced thermal stability and flame retardancy.
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Journal of Materiomics
·
2025
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IF 9.6
Shaozhen Huang,An Wang,Jiahua Liao,Xiangli Zhong,Hongjia Song,Chao Zhong,Zhongming Wang,Yuejiao Chen,Kecheng Long,Jinbin Wang,Libao Chen
The high-energy-density lithium metal batteries (LMBs) is expected to drive the development of the low-altitude economy and electro vehicles. Nevertheless, the practical application of lithium anodes is hampered by well-known issues of unstable interfacial electrochemistry. For the cathode materials with or without Li in the lithium metal batteries, the mechanisms and problems faced on the interfacial stabilization regulation of the Li anodes are different. Herein, based on in-depth consideration of lithium-free cathode (S) and lithium-containing cathode (NCM811) systems, respectively, we present a friction coating strategy to create an interlayer on the lithium foil anodes (LS@Li and LSe@Li) and lithium boron alloy anodes (LS@LiB and LSe@LiB), which can compensate for sulfur loss and achieve dendrite-free lithium plating. Deeply discuss and reveal the differences of interfacial electrodeposition of LS and LSe interlayers based on the interfacial capacitance. By using this modified interface layer design, we have achieved simultaneous improvement in the performance of both Li||S batteries and Li||NCM811 batteries (lifespan increased by 1.3 times and capacity increased by 1.8 times for Li||S as well as lifespan increased by 2.8 times for Li||NCM811). This strategy forms a stable interlayer based on incomplete mechanochemical reactions, which paves a new way for high-energy-density LMBs.
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高影响因子
NEW JOURNAL OF CHEMISTRY
·
2025
·
IF 2.5
Bolong Li,Qian Ma,Pan Gao,Huayushuo Zhang,Xiaoxia Yang,Mingming Song,Chao Li,Xiaomei Jiang
Direct X-ray detection technology, enabled by its rapid response, high special resolution and simple system configuration, has witnessed widespread applications in medical imaging, industrial non-destructive testing and scientific research. This drives the need for high-performance X-ray detection materials aiming for high sensitivity and low detection limits. Sulfides face significant challenges in X-ray detection performance due to the low atomic number of sulfur, intrinsic defects such as sulfur vacancies, and surface oxidation susceptibility. Herein, a series of rod-like clustered Bi2S3/Bi2Se3 composites with tunable S/Se molar ratios were synthesized via a facile hydrothermal method. Precise control of Se incorporation effectively modulated the morphology of nanorod-assembled Bi2S3 clusters, enhancing their structural and optoelectronic properties. Notably, the optimized Bi2S3-8% Se composite exhibited enlarged dimensions and denser nanorod clusters, leading to significantly improved X-ray detection performance. Under 40 kV X-ray irradiation, detectors based on Bi2S3-8% Se pellets achieved a remarkable sensitivity of 1025.37 μC·Gyair-1·cm-2, representing 3.5 times higher than pure Bi2S3. Furthermore, its detection limit was drastically reduced to 130 nGyair·s-1. The enhanced performance is attributed to the formation of Bi2S3/Bi2Se3 heterostructures, which facilitate efficient charge separation and transport, thereby boosting X-ray photoconversion efficiency. These findings highlight the potential of Bi2S3/Bi2Se3 composites as high-performance direct X-ray detectors, offering a promising strategy for developing advanced radiation detection materials.
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