Journal of Materials Chemistry A
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2025
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IF 9.5
Faxiu Zhang,Jing Xie,Xinxin Yin,Gaoyuan Liu,Zhenjiang Lu,Jindou Hu,Yong Wen,Yali Cao
Despite the high capacity of metal selenides (MSes) anode materials for sodium-ion batteries (SIBs), they still face significant challenges, including rapid capacity degradation and slow reaction kinetics. Herein, a novel structure of Bi2Se3 nanospheres uniformly embedded in a nitrogen-doped carbon nanofiber matrix (denoted as Bi2Se3−x@CNFs) was constructed through a facile fabrication approach involving electrospinning, followed by one-step selenization, demonstrating exceptional performance as an SIB anode. The extremely high mechanical strength and consecutive fibrous structure of carbon fibers effectively alleviate the agglomeration and volume expansion of Bi2Se3 particles and ultimately improve stability and service life. Furthermore, the engineered selenium vacancy distribution in both Bi2Se3 nanospheres and carbon fiber substrates produces synergistic effects, significantly improves bulk electronic conductivity, and expedites redox reaction kinetics. As expected, the Bi2Se3−x@CNFs-600 electrode demonstrates high capacity and exceptional durability (327.8 mAh g−1 after 1000 cycles at 3.0 A g−1 and 284.0 mAh g−1 over 3000 cycles at 5.0 A g−1). It is noteworthy that the assembled Bi2Se3−x@CNFs//Na3V2(PO4)3 full cells demonstrate good rate capability and stability, rendering them a viable option for SIBs.
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高影响因子
MICROCHIMICA ACTA
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2022
·Vol. 189
·期 8
·1-10
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IF 6.408
Xiong Xiaolu,Zhu Peng,Li Shanshan,Jiang Yujiu,Ma Yurong,Shi Qingfan,Zhang Xu,Shu Xiaoming,Wang Zhiwei,Sun Linfeng,Han Junfeng
A large-size Bi 2 Se 3 tape electrode (BTE) was prepared by peeling off a 2 × 1 × 0.5 cm high-quality single crystal. The feasibility of using the flexible BTE as an efficient bioplatform to load Au nanoparticles and probe DNA for HIV-1 DNA electrochemical sensing was explored. Differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS) show that the resultant biosensor has a wide linear range from 0.1 fM to 1 pM, a low detection limit of 50 aM, excellent selectivity, reproducibility and stability, and is superior to the pM DNA detection level of Pt-Au, graphene-AuNPs hybrid biosensors. This outstanding performance is attributed to the intrinsic surface state of Bi 2 Se 3 topological insulator in facilitating electron transfer. Therefore, BTE electrochemical biosensor platform has great potential in the application for sensitive detection of DNA biomarkers. Graphical abstract
研究领域:
生物化学
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材料科学
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分析化学
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纳米技术
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2022
·
IF 9.965
Xu Chen,Mengjun Qiu,LiPing Liu,Qin Ji,Zushun Xu,Zhifan Xiong,Shengli Yang
A novel nanoplatform that supports multimodal imaging has been designed for deep tumor therapy. In this study, Bi 2 Se 3 @Cu 2−x Se heterojunction nanocomposites with tunable spectral absorption, effective electron–hole separation and high photothermal conversion efficiency were prepared for the combination therapy of phototherapy (PT), chemodynamic therapy (CDT) and radiotherapy (RT). By adjusting the doping ratio, the heterojunction nanoparticles show obvious tunable ability of local surface plasmon resonance and the ability to promote electron-hole separation with significantly enhanced reactive oxygen species production capacity. The band structure and charge density difference calculated by density functional theory further reveal that the change of band gap and the decrease of free carriers can regulate the spectral absorption of nanomaterials and promote electron-hole separation. In addition, the photothermal conversion properties of low carrier density semiconductors are related to their inherent deep level defects. The formation of heterojunctions making the Se atoms deviate from the Bi 2 Se 3 lattice, resulting in more deep level defects and stronger photothermal conversion properties. Meanwhile, this nanoplatform presented features similar to catalase activities and glutathione (GSH) consumption characteristics, which was capable of effectively alleviate the tumor-specific hypoxia environment to enhance the efficacy of O 2 -dependent photodynamic therapy (PDT) and radiotherapy (RT) and depletion GSH to prevent the reduction of therapeutic efficacy due to the clearance of reactive oxygen species. In addition to therapeutic enhancement, heterojunction nanomaterials have excellent nuclear magnetic resonance imaging (MRI), infrared thermal imaging (IR) and computed tomography (CT) properties due to their significant paramagnetism and excellent photothermal conversion and X-ray attenuation capacities. In conclusion, our findings provide a new strategy for designing multi-function and efficient nanoplatform to treat tumor.
研究领域:
纳米技术
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癌症治疗
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材料科学
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医学影像
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PubMed
高影响因子
Acta Biomaterialia
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2023
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IF 9.7
Cong Zhang,Qingrong Li,Jie Shan,Jianghao Xing,Xiaoyan Liu,Yan Ma,Haisheng Qian,Xulin Chen,Xianwen Wang,Lian-Ming Wu,Yue Yu
The overexpression of reactive oxygen and nitrogen species (RONS) in the colonic mucosa destroys the mucosa and its barrier, accelerating the occurrence of inflammatory bowel disease (IBD). The elimination of RONS from the inflammatory colon has proven effective in alleviating IBD. Although many nanoantioxidants have been developed, preparing robust and efficient nano-antioxidants remains challenging. Herein, by modifying bismuth selenide (Bi 2 Se 3 ) nanodiscs with polyvinylpyrrolidone (PVP), a multifunctional nanozyme based on 2D nanomaterials was developed for the treatment of IBD. By eliminating multiple RONS, such as hydroxyl radicals ( OH), superoxide anions (O 2 − ), nitric oxide (NO), and Bi 2 Se 3 nanodiscs enhanced cellular survival after H 2 O 2 stimulation. As evidenced by colonic injury, reduced body weight, spleen index, and proinflammatory cytokine levels in mice, RONS clearance alleviated intestinal inflammation in a prevention and delay model of acute colitis. 16S rDNA amplicon sequencing reveals that Bi 2 Se 3 nanodiscs had the potential to regulate intestinal flora , increase the proportion of Firmicutes to Bacteroidetes , inhibit Proteobacteria bacteria, and restore intestinal homeostasis . This study highlights the use of Bi 2 Se 3 nanodiscs with excellent biocompatibility, multienzyme functionality, and RONS scavenging ability as treatments for IBD without apparent adverse effects. Statement of Significance RONS were efficiently scavenged by Bi 2 Se 3 nanodiscs. Bi 2 Se 3 nanodiscs could be as a promising and potentially safe theraeputic agent for IBD. The gut microbiota could be modulated by Bi 2 Se 3 nanodiscs.
研究领域:
纳米技术
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医学
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胃肠病学
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免疫学
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微生物学
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高影响因子
JOURNAL OF CRYSTAL GROWTH
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2023
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IF 1.8
Rongrong Ren,Pengbin Qin,Jiexi Song,Yanqing Qin,Wenqiang Li,Yaocen Wang,Xiaoguang Yang,Jilin Li,Wolfgang Löser,Chongde Cao
We have studied the crystal growth of Sn x Bi 2 Se 3 ( x = 0 ∼ 0.75) and examined the effect of Sn doping on the structure and thermoelectric properties of Bi 2 Se 3 . All the crystal samples of Sn x Bi 2 Se 3 were synthesized using a direct melt-growth. The results indicated that when the Sn doping content was ≤ 0.3, some Sn atoms were incorporated into the interlayers of Bi 2 Se 3 , thereby increasing the carrier concentration. In the intermediate to the high-temperature range, Sn doping improved the electrical conductivity of Bi 2 Se 3 , resulting in overall good performance in the power factor( PF ). All the doped samples exhibited good ZT (a dimensionless figure of merit) in the intermediate to the high-temperature range, especially with the doping sample of x = 0.3 showing a maximum ZT value of 0.2 at 835 K.
研究领域:
材料科学
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热电学
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晶体生长
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固体物理
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高影响因子
NEW JOURNAL OF CHEMISTRY
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2025
·Vol. 49
·期 8
·3140-3146
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IF 2.5
Huashuan Li,Lumin Liao,Tianhao Zhou,Kaixiang Ren,Shichang Han,Tianyu Zhu
Al-based composites have emerged as promising hydrogen generation materials due to their high yield and low cost, yet slow hydrogen generation kinetics have impeded their widespread application. In this study, a series of novel Al–BixMy composites were synthesized via high-energy ball milling, with the Al–15 wt% Bi2Se3 composite demonstrating superior hydrogen generation performance. Achieving an unprecedented catalytic efficiency at ambient conditions, this composite reached a maximum hydrogen generation (MHG) rate of 1139 mL g−1 min−1 and completed hydrogen generation within 5 min with a 97.6% conversion yield. Through comprehensive characterization using X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS), in situ Se and Bi were found on the fresh Al surface. Density functional theory calculations (DFT) elucidated the mechanism by which Bi doping enhances water adsorption and the cleavage of O–H bonds. These findings provide important insights for the design of high-performance Al-based hydrogen generation materials with improved kinetics and efficiency.
研究领域:
材料科学
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氢能
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催化
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纳米材料
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高影响因子
MATERIALS RESEARCH BULLETIN
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2024
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IF 5.3
Jin Liu,Liexiang Ren,Jujie Luo,Huitao Li
The low capacity of negative electrode materials for supercapacitors limits their practical applications. In this study, the bimetallic selenides Bi 2 Se 3 /FeSe 2 were efficiently prepared by a convenient one-step microwave method. The attributes of nanoparticles such as surface morphology, crystal structure, elemental valence, and distribution regions were verified by a series of characterization tools. The composite electrode exhibits high electrochemical performance in the 1.2 V negative potential window. The capacitance of the Bi 2 Se 3 /FeSe 2 electrode is 274 mAh g −1 at 1 A g −1 . These results indicate that Bi 2 Se 3 /FeSe 2 holds great potential for supercapacitor anode materials. In particular, the asymmetric water-based supercapacitor dual-electrode device (NiSe/NiTe 2 //Bi 2 Se 3 /FeSe 2 ) shows an impressive power/energy density of 56.25 Wh kg −1 at 774.67 W kg −1 . The capacitance of ASC is reduced by 20.10 % and the coulomb efficiency is maintained at 99.45 % over 3000 cycles.
研究领域:
材料科学
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电化学
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高影响因子
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
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2019
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IF 2.752
Jingfeng Wang,Fei Jiao,Di Zhang,Meixia Chang,Lingbo Cai,Yunlong Li,Cao Wang,Shugang Tan,Qiang Jing,Bo Liu,Dong Qian
The relationship between the doping position of Nb in Bi 2 Se 3 and its superconductivity is investigated by XPS, magnetic measurement and transport measurement. It is found that for Nb x Bi 2 Se 3 , the main impurity phase comes from BiNbSe 3 . Superconducting volume fraction of Nb doped Bi 2 Se 3 increases with the ratio of Nb inserted in the van der Waals layers. The van der Waals-layer-position doped Nb may lead to superconductivity in Bi 2 Se 3 . This work may stimulate further investigation on topological superconductivity mechanism of Nb x Bi 2 Se 3 .
研究领域:
凝聚态物理
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材料科学
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高影响因子
ACS Nano
·
2026
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IF 17.3
Mengdi Lu,Yuanyuan Bai,Shuang Xia,Shengzhao Li,Ju Bai,Ting Zhang,Tie Li
Flexible sensors normally require highly stable structural interfaces to sense various signals continuously and steadily under repeated deformation. Especially, for carbon-tube-derived flexible devices, however, functional components are typically deposited on the exterior of conductive networks, where they disrupt tube-tube contacts and leave active interfaces vulnerable to aggregation, delamination, and signal drift. Here, we report an internally nanoconfined Bi2Se3@carbon-tube hybrid with an inbuilt heterostructure architecture, in which Bi2Se3 is grown inside bamboo-like carbon tubes (BCTs). The BCT shell serves as both a continuous carrier pathway and a mechanically protective sheath, while the built-in Bi2Se3-carbon interface enables stable thermoelectric and photoinduced carrier transport. Compared with the externally decorated BCT@Bi2Se3, the product forms a more stable ink dispersion (over 130 days) and uniform spray-coated films, and the derived flexible sensor displays superior bending-piezoresistive (over 3000 cycles), thermoelectric (7-fold higher), and photoelectric (3.4-fold higher) multimodal response behaviors in a single device. Furthermore, mounted on a robotic finger, the sensor provides complementary descriptors of material, geometry, and optical appearance, showing an identified accuracy of 100% for six similar cups by fusing these signals to a one-dimensional convolutional neural network model. This internal encapsulation strategy converts fragile hybrid interfaces into protected, transport-efficient heterointerfaces for durable robotic perception.
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Biomaterials Science
·
2019
·Vol. 7
·期 7
·3025-3040
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IF 5.251
Lihong Sun,Qian Li,Lei Zhang,Huihui Chai,Ling Yu,Zhigang Xu,Yuejun Kang,Peng Xue
Stimuli-responsive therapeutic nanosystems exhibit enhanced selectivity and higher biosafety for cancer theranostics via recognizing exogenous or endogenous tumor-associated factors. Herein, we developed a multifunctional nanocomplex (Bi2Se3@PEG/DOX/Ce6 nanocapsules, or BPDC NCs in brief) which was constructed by loading chlorin e6 (Ce6) and doxorubicin (DOX) into PEGylated hollow bismuth selenide nanocapsules. Upon administration of BPDC NCs, composite laser irradiation can effectively activate the local hyperthermia generation and the yield of cytotoxic reactive oxygen species (ROS). In another aspect, on-demand drug release can be triggered in a mild acidic tumor microenvironment or by thermal shock. Moreover, imaging and navigation with respect to infrared thermography, computed tomography (CT) and fluorescence imaging may potentially monitor the biodistribution of BPDC NCs, thanks to the local hyperthermia generation, fluorescence emission of Ce6 and high Z-element of bismuth. Finally, we demonstrated tumor site-specific photothermal therapy (PTT), photodynamic therapy (PDT) and chemotherapeutic effects for highly efficacious tumor suppression with minimized systemic toxicity. Taken together, these findings indeed provide insights that can broaden the application of Bi2Se3 nanocapsules for cancer management and precision medicine.
研究领域:
生物医学工程
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肿瘤学
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纳米医学
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PubMed
高影响因子
Nanomaterials
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2026
·Vol. 16
·期 3
·205
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IF 4.8
Qiya Liu,Xinsheng Yang,Min Zhang
Magnetic topological insulators (TIs) are promising candidates for realizing the quantum anomalous Hall effect (QAHE) and advancing the development of next-generation low-energy transistors and electronic devices. Doping Bi2Se3with nano-carbon can introduce magnetic order and open the Dirac gap without introducing extrinsic magnetic impurities. In this work, the C0.06Bi2Se3single crystal was prepared using the Bridgman method, and their electrical and magnetotransport properties were systematically investigated. Temperature-dependent resistivity and magnetoresistance measurements revealed a magnetic-field-induced metal–insulator-like transition near 152 K. Angle-resolved photoemission spectroscopy (ARPES) detected an energy gap of about 43 meV at the Dirac point, confirming that carbon doping modulates the surface state and opens the gap. Pronounced Shubnikov–de Haas oscillations indicate high carrier mobility in C0.06Bi2Se3. Furthermore, the temperature-dependent Kerr spectra shows that the spin relaxation behavior of C0.06Bi2Se3differs significantly from that of pure Bi2Se3; the relaxation process of spin electrons from the surface state (τs) dominates the spin dynamics and exhibits distinct trends around 30 K and 150 K due to the interplay of the Dirac gap and impurity-induced states. These results demonstrate the potential of magnetic topological insulator C0.06Bi2Se3for novel electronic and spintronic applications.
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高影响因子
ACS Applied Nano Materials
·
2025
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IF 5.5
Yue Guo,Chengyan Liu,Geng Cheng,Huimin Zhou,Ke Zhang,Guodong Yang,Yan Li,Jianhua Zhou,Lei Miao,Dong Hu
Lithium−oxygen batteries (LOBs) are considered promising candidates for next-generation energy storage systems due to their ultrahigh theoretical energy density. However, their practical application is challenged by sluggish reaction kinetics and unstable discharge product formation. Herein, we report the rational nanoscale engineering of a Bi2Se3/Bi2O3 heterostructured cathode via a controlled hydrothermal synthesis, addressing these limitations. The type-I band alignment in nanocomposite Bi2Se3/Bi2O3 generates a built-in electric field at the heterointerface, facilitating electron and ion transport and lowering the energy barriers for oxygen reduction (ORR) and evolution (OER) processes. Consequently, the Bi2Se3/Bi2O3 heterointerface catalyst exhibits exceptional specific capacity (19433.6 mAh g−1) and cycle stability (201 cycles at 200 mA g−1; 98 cycles at 1000 mA g−1), surpassing pristine Bi2Se3 by 320% in cycle life. This study establishes heterointerface engineering as a universal strategy for developing high-performance LOB catalysts.
研究领域:
材料科学
·
能源存储技术
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高影响因子
危险品化学品经营许可证（带存储）