MATERIALS RESEARCH BULLETIN
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2024
·
IF 5.3
Qing-Xiu Ma,Ming-Zhu Chen,Ke Wang,Tao Song,Qiang Wang,Hao-Li Zhang
Although having an advantageous charge–discharge rate, supercapacitors, in terms of energy density, are still dwarfed by their battery counterparts, thereby hindering their industrial use. Two-dimensional (2D) Bi 2 Se 3 , which is characterized by high electrical conductivity, possesses a large theoretical specific capacity that has not been experimentally realized. In this study, we employed scalable electrochemical exfoliation to fabricate high-quality Bi 2 Se 3 nanosheets with a yield of over 95 %. These nanosheets were then applied as anode materials with the hitherto highest specific capacitance of 662.5 F/g at 1A/g to assemble asymmetric supercapacitors (ASCs) of Bi 2 Se 3 //NiCo 2 S 4 . The supercapacitors demonstrated an extraordinary energy density of 48 Wh/kg at a power density of 800 W/kg and efficiently drove devices such as perovskite-LEDs. This study reveals the huge potential of 2D Bi 2 Se 3 as an efficient supercapacitor electrode via a primary Faradaic pseudocapacitive storage mechanism. The scalable production of this material is expected to stimulate its widespread and practical use.
研究领域:
材料科学
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能源存储
✓ 已验证
产品关联
DOI
高影响因子
CRYSTAL GROWTH & DESIGN
·
2021
·
IF 4.076
Qichao Chen,Jiayi Chen,Xiao Xu,Zhehan Wang,Yamei Ding,Le Xiong,Beibei Zhu,Li Tao
Vapor–solid growth (VSG) is a cost-effective technique to synthesize Bi2Se3 materials with promising thermoelectric (TE) performance. In this work, smooth Bi2Se3 thin films with enhanced TE performance have been realized through regulating the carrier gas flow rate during the VSG process. The optimized morphology improves the electrical conductivity and decouples its interplay withthe Seebeck coefficient in Bi2Se3. As a result, our Bi2Se3 synthesized at 150 sccm gas flow rate exhibited a Seebeck coefficient around −100 μV K–1 and a power factor (PF) of 1.59 × 10–3 W m–1 K–2, which is higher than those of existing thin films and the single-crystal bulk form. This work provides guidance for the controllable preparation of Bi2Se3 thin films with low roughness and high TE performance for potential applications in micro-/nanodevices.
研究领域:
材料科学
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热电学
✓ 已验证
DOI
高影响因子
RSC Advances
·
2022
·Vol. 12
·期 24
·15150-15157
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IF 4.036
Di Huo,Gongge Lin,Mengfan Lv
In this work, a simple and reproducible hydrothermal synthesis was employed to synthesize two-dimensional Bi2Se3 nanosheets by using gallic acid as a reductant. Meanwhile, the effects of the amounts of gallic acid and sodium hydroxide and the surfactant Triton X-100 on phase composition and morphology of the obtained Bi2Se3 were also studied. The results reveal that gallic acid could effectively reduce Se4+ to Se2− and gave rise to the formation of Bi2Se3. Additionally, keeping the reaction conditions of molar ratio of gallic acid to the precursor elements (Bi + Se) at 1 to 1 (or higher) and using strong alkaline solutions were the key factors to synthesize high purity crystalline Bi2Se3 nanosheets. Furthermore, flower-like Bi2Se3 composed of nanosheets with a dozen nanometer thickness could be easily fabricated by adding appropriate amounts of Triton X-100. This work provides a novel approach for synthesis of ultra-thin Bi2Se3 nanosheets in a controllable manner.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials Today Chemistry
·
2023
·
IF 7.3
Z. Sun,M. Liu,R. Khan,L. Huang,Y. Wu,Y. Zhou
High-performance electrodes based on the conversion or alloying mechanisms have attracted much attention owing to their high theoretical capacity, but the development of fast charging conversion or alloying type electrodes by simple methods remains a great challenge. Herein, a new type of strained bismuth selenide material (s-Bi 2 Se 3 ) was obtained through post heat treatment process. Due to its unique structural advantages including large interlayer spacing and narrow band gap, ion diffusion and electron transfer accelerated significantly. Meanwhile, the lattice strain in materials is thermodynamically favorable for the redox reaction to proceed. The as prepared s-Bi 2 Se 3 exhibits ultrafast electrochemical reaction kinetics when it is used as an anode for sodium-ion batteries (SIBs) and retained a high reversible specific capacity of 332.7 mAh/g even at the ultrahigh current density of 30 A/g after 1000 cycles. Especially, the Na-ion full cell was assembled with a cathode of Na 3 V 2 (PO 4 ) 3 @C, showing excellent electrochemical performance (176.2 Wh/kg at 0.2 A/g and 99.7 Wh/kg at 1662.4 W/kg). In addition, the high-performance mechanism was explored through electrochemical tests and characterizations, which provided an important theoretical basis for the application of SIBs.
研究领域:
材料科学
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电化学
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能源存储
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Xingliang Dai,Dongdong Liu,Pengyu Pan,Guobiao Liang,Xianwen Wang,Weiwei Chen
Photothermal therapy (PTT) has gained widespread attention due to its significant advantages, such as noninvasiveness and ability to perform laser localization. However, PTT usually reaches temperatures exceeding 50 °C, which causes tumor coagulation necrosis and unfavorable inflammatory reactions, ultimately decreasing its efficacy. In this study, multifunctional two-dimensional Bi 2 Se 3 nanodisks were synthesized as noninflammatory photothermal agents for glioma therapy. The Bi 2 Se 3 nanodisks showed high photothermal stability and biocompatibility and no apparent toxicology. In addition, in vitro and in vivo studies revealed that the Bi 2 Se 3 nanodisks effectively ablated gliomas at relatively low concentrations and inhibited tumor proliferation and migration. Moreover, the multienzymatic activity of the Bi 2 Se 3 nanodisks inhibited the PTT-induced inflammatory response through their high ability to scavenge reactive oxygen species. Finally, the Bi 2 Se 3 nanodisks demonstrated computed tomography capabilities for integrating diagnosis and treatment. These findings suggest that multifunctional Bi 2 Se 3 nanodisk nanozymes can enable more effective cancer therapy and noninflammatory PTT.
研究领域:
生物医学工程
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肿瘤学
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材料科学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Ding Wen,Lile Dong,Kai Li,Yechao Du,Ruiping Deng,Jing Feng,Hongjie Zhang,Daguang Wang
Despite bismuth-based energy conversion nanomaterials having attracted extensive attention for nanomedicine, the nanomaterials suffer from major shortcomings including low tumor accumulation, long internal retention time, and undesirable photothermal conversion efficiency (PCE). To combat these challenges, bovine serum albumin and folic acid co-modified Bi2Se3 nanomedicine with rich selenium vacancies (abbreviated as VSe-BS) was fabricated for the second near-infrared (NIR-II) light-triggered photonic hyperthermia. More importantly, selenium vacancies on the crystal planes (0 1 5) and (0 1 11) of VSe-BS with similar formation energies could be distinctively observed via aberration-corrected scanning transmission electron microscopy images. The defect engineering endows VSe-BS with enhanced conductivity, making VSe-BS possess outstanding PCE (54.1%) in the NIR-II biowindow and desirable photoacoustic imaging performance. Tumor ablation studies indicate that VSe-BS possesses satisfactory therapeutic outcomes triggered by NIR-II light. These findings give rise to inspiration for further broadening the biological applications of defect engineering bismuth-based nanomaterials.
研究领域:
纳米医学
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生物材料学
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肿瘤治疗
✓ 已验证
DOI
高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2016
·Vol. 21
·期 3
·793-801
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IF 2.327
Dong Sheying,Li Miao,Wei Wenbo,Liu Dan,Huang Tinglin
A substantial outstanding challenge in diagnostics and disease monitoring is the ability to assay rapidly and conveniently for protein biomarkers within complex biological media. Bi 2 Se 3 , as an important topological insulator (TI) material, was synthesized by a solvothermal method and characterized structurally. Subsequently, the composite of Bi 2 Se 3 and ionic liquid ([BMIm]BF 4 IL) was used as a sensing interface to cross-link goat anti-human immunoglobulin G (anti-IgG) via glutaraldehyde (GA) to fabricate an Bi 2 Se 3 /IL/GA/anti-IgG-carbon paste electrode (CPE). The nonspecific binding sites were enclosed with bovine serum albumin (BSA) to develop a label-free IgG immunosensor. The result showed that the proposed label-free IgG immunosensor exhibited high specificity with a detection limit of 0.8 ng mL −1 and linear range from 2 to 300, and 300 to 2200 ng mL −1 . Besides, the immunosensor exhibited high specificity for IgG detection, acceptable reproducibility, and stability. Thus, the strategy reported here paved a simple way to design a sensitive and cost-effective sensing platform for extension to other disease biomarkers.
研究领域:
生物医学工程
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材料科学
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诊断学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF PHARMACEUTICS
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2024
·
IF 5.3
Li Ding,Xinghua Yu,Shihao Cai,Azhar Mahmood,Wenjing Meng,Xiaotong Liu,Jiahan Liu,Jieyun Li,Xuejuan Zhang,Chuanbin Wu
The cRGD peptide surface coating strategy for photothermal therapy nanoplatforms shows great promise in developing safe and effective cancer therapies. However, the precise intracellular mechanisms of these platforms remain unclear due to the complexity of intracellular trafficking and nano-bio interactions. This study investigates the nano-bio interactions of Bi 2 Se 3 nanofoams, a representative photothermal therapy nanoplatform, coated with cRGD peptide in cancer cells, focusing on endocytosis, exocytosis, and cellular trafficking. Our findings reveal that the cRGD-coated Bi 2 Se 3 nanofoams are internalized through three distinct endocytosis pathways: Rab34-mediated macropinocytosis, caveolae-dependent, and clathrin-dependent endocytosis. These nanofoams then accumulate in lysosomes via autophagy. Furthermore, inhibiting exocytosis reduces the loss of these nanofoams from cancer cells, enhancing photothermal and chemotherapy effects. This exocytosis-inhibiting strategy demonstrates significant potential for cancer therapy, validated by successful in vitro and in vivo results.
研究领域:
纳米医学
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细胞生物学
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肿瘤学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2021
·Vol. 32
·期 14
·19424-19433
·
IF 2.478
Guo Chengbin,Hu Rong,Qiao Hui,Duan Chenguang,Qi Xiang
Titanium dioxide (TiO 2 ) has been widely studied in the field of photocatalysis. However, the development of TiO 2 was limited by the photoresponse only in the ultraviolet region and the rapid recombination of photogenerated electron–hole pairs. In this work, we prepare a novel TiO 2 and two-dimensional (2D) bismuth selenide (Bi 2 Se 3 ) hybrid nanosheets (TiO 2 /Bi 2 Se 3 HNs) via a simple water bath ultrasonic route. X-ray diffraction pattern and Raman spectra were carried out to confirm that as-prepared samples were pure and well crystalized. Besides, TEM characterization proves that 2D Bi 2 Se 3 nanosheets have high specific surface area and it can be clearly observed that the TiO 2 with 60 nm particles are uniformly supported on the surface. Furthermore, photoelectrochemical (PEC) measurements demonstrate that the TiO 2 /Bi 2 Se 3 HNs exhibit excellent photocatalytic performance of 4.3 µA/cm 2 under 100 W of visible light, which were almost 2.5 times that of pure TiO 2 . More importantly, our results show that the photocurrent density was quite stable and only dropped by 10% after 125 cycles. In summary, the improved photocatalytic activity is due to the unique characteristic of 2D Bi 2 Se 3 nanosheets, such as maximized reaction sites and good electrical conductivity, and the positive coupling effect of the TiO 2 /Bi 2 Se 3 heterojunction. These extraordinary properties make the TiO 2 /Bi 2 Se 3 HNs photocatalysts have excellent potential for photocatalytic application.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2019
·
IF 4.084
Dong Li,Jie Lao,Chunli Jiang,Chunhua Luo,Ruijuan Qi,Hechun Lin,Rong Huang,Geoffrey I.N. Waterhouse,Hui Peng
Hydrogen production from water splitting through electrocatalytic or photoelectrochemical route shows great potential for renewable energy conversion. Herein, the plasmon-enhanced photoelectrical nanocatalysts (NCs) have been successfully developed by Au nanoparticle-decorated Bi 2 Se 3 nanoflowers (Au@Bi 2 Se 3 NFs) as catalysts for hydrogen evolution reaction (HER), leading to a more than 3-fold increase of current under excitation of Au localized surface plasmon resonance (LSPR) and affording a markedly decreased overpotential of 375 mV at a current density of 10 mA cm −2 . The HER enhancement can be largely attributed to effective electron-charge separation and the increase of carrier density in Bi 2 Se 3 induced by the injection of hot electrons of Au nanoparticles. Meanwhile, Bi 2 Se 3 nanoflowers (NFs), a kind of topological insulators, possess gapless edges on boundary and show metallic character on surface, providing a path for the flow of electrons in the electrocatalytic system . This study opens up a new avenue towards the design of higher energy conversion catalytic water splitting systems with the assistance of light energy , which could increase of HER catalysis efficiency by plasmonic excitation.
研究领域:
材料科学
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能源转换
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Nano Today
·
2021
·
IF 20.722
Long Gao,Haili Yan,Shuang Zhu,Xiaochun Wang,Yan Tan,Jiangfeng Du,Duiping Feng,Hui Zhang,Zhanjun Gu
Microwave ablation (MWA) is acknowledged as one of the optimal therapeutic strategies for unresectable hepatocellular carcinoma (HCC). Unfortunately, inadequate MWA at high-risk sites is very common in clinic owing to the scruple of probable damage to adjacent vital organs, which eventually leads to recurrence of residual tumors. Herein, we synthesize novel Bi 2 Se 3 nanoflowers (NFs) which possess the peculiarity of microwave sensibilization and explore their sensitization capability both in vitro and in vivo . The as-prepared NFs exhibits remarkable heating capacity under microwave irradiation compared to deionized water , mainly due to the multilayered petal structures that could strongly increase the reflectivity of microwave and stimulate the motion of water molecules. More importantly, we recruit clinically available transarterial infusion (TAI) method for precisely targeted delivery of Bi 2 Se 3 NFs to tumor site and perform sequential MWA on orthotopic liver tumor. In addition, the high Z element containing Bi 2 Se 3 NFs could realize efficient computed tomography to monitor the therapeutic process. What’s more, no obvious cell and organic toxicity are observed during the experimental period, which further verifies the good biocompatibility of Bi 2 Se 3 NFs. In this work, we utilize minimally invasive TAI for targeted delivery of microwave sensitive nanoflowers to improve MWA efficacy at tumor site and reduce side effect in normal tissues, which provides a neoteric theoretical and experimental strategy for clinical interventional therapy of HCC.
研究领域:
医学影像学
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肿瘤学
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生物材料学
✓ 已验证
DOI
高影响因子
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2024
·Vol. 130
·期 1
·1-9
·
IF 2.5
Ye Yanhong,Yu Ruiyang,Huang Zongyu,Qiao Hui,Qi Xiang
Two-dimensional (2D) materials have demonstrated great performance and good application prospects in a variety of photodetectors, including photoelectrochemical (PEC)-type photodetectors, due to their superior optical and electrical properties. Among these, 2D Bi 2 Se 3 materials have drawn a lot of attention from scientists due to their special physical characteristics, such as a topological insulator, strong carrier mobility, and narrow bulk bandgap of 0.3 eV. Among the many methods for preparing Bi 2 Se 3 , the electrodeposition method stands out for its high adaptability and compatibility with PEC systems. Herein, through a simple electrodeposition method based on an electrochemical system, a Bi 2 Se 3 film-based PEC-type photodetector was constructed, which exhibits good and tunable photoresponse properties, as well as excellent cycle and time stability. This research demonstrates the potential of the Bi 2 Se 3 film created by electrodeposition as a photoanode material for photodetectors and offers a practical and prolongable method for creating photoanodes for PEC photodetectors.
研究领域:
材料科学
·
光电子学
·
电化学
·
纳米技术
·
固体物理
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）