CRYSTENGCOMM
·
2023
·Vol. 25
·期 38
·5399-5404
·
IF 3.1
Xiaojing Feng,Zhiqi Li,Guangda Chen,Haoyu Yue,Yan Gao,Xiankun Zhang,Zhongnan Guo,Wenxia Yuan
Layered metallic transition metal dichalcogenides (TMDs) with bonding-free surfaces and weak Fermi-level pinning properties have exhibited potential application as electrode materials in two-dimensional (2D) semiconductor devices. However, various TMDs metallic materials are still limited in certain areas, especially due to the lack of a low-work function (<4.5 eV) counterpart. Herein, we report a polytelluride flux growth method for TiTe2 single crystals and determine the work function of this IVB group metallic TMD for the first time. The obtained crystal adopts a typical 1T-type structure (Pm1 space group, no. 164) with the lattice parameters a = 3.7668(4) Å and c = 6.4918(10) Å. The TiTe2 crystal showed metallic behavior with decreased resistivity upon cooling and a relatively low resistivity value (4.39 × 10−4 Ω cm) at room temperature. By ultraviolet photoelectron spectroscopy, the work function of TiTe2 was determined as 4.31 eV, which is much smaller than the reported data of other metallic TMDs. Our study demonstrates the interesting work function data of 1T-TiTe2, which can be utilized to make excellent metal–semiconductor contacts in 2D semiconductor devices.
研究领域:
材料科学
·
凝聚态物理
✓ 已验证
DOI
高影响因子
ACS Applied Nano Materials
·
2024
·
IF 5.3
Hagar Shendy Bahlol,Jin Zhang,Zhiyong Song,Kai Zhang,Zhaoyu Ma,Weiyun Zhang,Heyou Han
Cancer represents a persistent global health challenge, and the inherent limitations of chemotherapy are widely acknowledged. Notably, there is growing interest in multifunctional core–shell nanostructures as promising candidates for diverse biological applications. Herein, we have successfully devised a biocompatible zeolitic imidazolate framework-8 (ZIF-8) coated onto multicore Tellurium nanodots (TeNDs) nanocarrier (MOFs@TeNDs). These nanoplatforms displayed a consistent size distribution, an average diameter of 100 ± 10 nm, and consistent morphological features. Furthermore, TeNDs exhibit a strong photothermal response and produce reactive oxygen species (ROS) when subjected to near-infrared (NIR) radiation. Moreover, ZIF-8 has shown a significant loading capacity for the medication doxorubicin hydrochloride (DOX), and subsequent drug release is controlled by pH and NIR, both responding to stimuli. Notably, this nanosystem has demonstrated excellent performance within in vitro assay by reducing the challenges associated with conventional anticancer therapies while enhancing their therapeutic abilities, auguring auspicious prospects for translation into in vivo applications, thereby highlighting its potential as a pioneering therapeutic modality.
研究领域:
生物医学工程
·
纳米医学
·
肿瘤学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Yiping Qiu,Xingyue Wu,Denghui Tang,Junyao Li,Wenrong Cai,Laidi Xu,Yong Kong,Zheng-Zhi Yin
A Prussian blue analogue is grown in situ on nickel foam (NF) by a co-precipitation strategy, which is further converted into Ni-Co tellurides ((Ni-Co)Te)/NiTe through a hydrothermal method. The obtained (Ni-Co)Te/NiTe shows a heterogeneous and multi-dimensional structure, which displays a high areal specific capacitance of 2390.7 mF cm −2 at 1 mA cm −2 and a high capacitance retention of 80.3 % after 5000 cycles. Further, a hybrid supercapacitor (HSC) is assembled by using the (Ni-Co)Te/NiTe grown on NF (NF@(Ni-Co)Te/NiTe) as the cathode and activated carbon (AC) supported on NF (NF@AC) as the anode, respectively. The HSC exhibits a maximum energy density of 95.6 Wh kg −1 at the power density of 444.5 W kg −1 , which is higher than most of the HSCs previously reported. The synergistic effect of the heterojunction in the (Ni-Co)Te/NiTe and its multi-dimensional structure plays a crucial role in the enhanced reaction kinetics of the HSC.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Nano
·
2024
·
IF 15.8
Li Wen,Qixiang Zhang,Junjie Shi,Fei Wang,Siliang Wang,Zhiwei Chen,Yang Yue,Yihua Gao
Recently, the topological insulator MnBi2Te4 has aroused great attention owing to its exotic quantum phenomena and intriguing device applications, but the superior performances of MnBi2Te4 have not been researched in the field of electrochemistry. By theoretical calculations, it is found that MnBi2Te4 exhibits excellent Zn2+ storage and transport properties. Therefore, it is speculated that MnBi2Te4 has excellent electrochemical performance in zinc-ion batteries (ZIBs). In this research, MnBi2Te4 as a pioneer has been explored in ZIBs, showing surprising electrochemical properties. The MnBi2Te4 electrode displays a high average discharge specific capacity (264.8 mA h g–1 at 0.40 A g–1), a competitive cycle life (88.6% of initial capacity after 400 cycles at 4.00 A g–1), and an excellent rate performance (average capacity retention rate of 95.1% from 0.40 to 8.00 A g–1) owing to the fast ion transport of the conductive topological surface state and dissipationless channel of the edge state. Surprisingly, the quasi-solid-state (QSS) MnBi2Te4/Zn battery delivers excellent Zn2+ storage capability and possesses a capacity retention of 79.9% after 1000 cycles at 4.00 A g–1. In addition, the QSS MnBi2Te4/Zn battery can exhibit excellent performance and the GCD curves maintain stability without distortion deformation even at temperatures of 0 and 75 °C.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
·
2019
·Vol. 34
·期 4
·781-786
·
IF 0.605
Gao Peng,Chen Lilin,Wu Bo,Zhang Qiming,Xue Chao,Hou Chengyi,Sun Qiang
An optimal structure design of the lattice mismatched GaInP/GaInAs/Ge solar cell with high photoelectric conversion efficiency was proposed. Two-dimensional Bi 2 Te 3 and Sb 2 Te 3 nanosheets were prepared by solvothermal synthesis method used as thermoelectric (TE) functional materials, which is further hybrid with high conductive reduced graphene oxide (rGO) and carbon nanotubes (CNTs). TE film was then fabricated based on above materials. The power factor of the n -type TE film is 19.31 μW/mK 2 , and the power factor of the p -type TE film is 97.40 μW /mK 2 . The flexible TE device was integrated with flexible solar cell. Compared with the single photovoltaic (PV) cell, the efficiency of the as-prepared flexible integrated device measured under the AM1.5 illumination is significantly improved. The efficiency of the two parallel tests is increased from 27.26% and 26.59%, to 29.11% and 28.92%, respectively. The increasing ratio reaches 6.7%–8.8%.
研究领域:
可再生能源
·
材料科学
·
热电技术
·
光伏技术
·
纳米科技
✓ 已验证
DOI
高影响因子
Advanced Science
·
2019
·Vol. 6
·期 19
·1900531
·
IF 15.804
Chenyang Xing,Dazhou Huang,Shiyou Chen,Qichen Huang,Chuanhong Zhou,Zhengchun Peng,Jiagen Li,Xi Zhu,Yizhen Liu,Zhipeng Liu,Houkai Chen,Jinlai Zhao,Jiangqing Li,Liping Liu,Faliang Cheng,Dianyuan Fan,Han Zhang
Herein, a core–shell tellurium–selenium (Te–Se) nanomaterial with polymer-tailed and lateral heterojunction structures is developed as a photothermal absorber in a bionic solar-evaporation system. It is further revealed that the amorphous Se shell surrounds the crystalline Te core, which not only protects the Te phase from oxidation but also serves as a natural barrier to life entities. The core (Te)–shell (Se) configuration thus exhibits robust stability enhanced by 0.05 eV per Se atom and excellent biocompatibility. Furthermore, high energy efficiencies of 90.71 ± 0.37% and 86.14 ± 1.02% and evaporation rates of 12.88 ± 0.052 and 1.323 ± 0.015 kg m −2 h −1 are obtained under 10 and 1 sun for simulated seawater, respectively. Importantly, no salting out is observed in salt solutions, and the collected water under natural light irradiation possesses extremely low ion concentrations of Na + , K + , Ca 2+ , and Mg 2+ relative to real seawater. Considering the tunable electronic structures, biocompatibilities, and modifiable broadband absorption of the solar spectrum of lateral heterojunction nanomaterials of Te–Se, the way is paved to engineering 2D semiconductor materials with supporting 3D porous hydrophilic materials for application in solar desalination, wastewater treatment, and biomedical ventures.
研究领域:
材料科学
·
纳米技术
·
太阳能
·
环境工程
·
生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Yingying Deng,Sining Yun,Jiaoe Dang,Yongwei Zhang,Changwei Dang,Yinhao Wang,Zhuolei Liu,Zan Gao
Designing efficient nanohybrid electrocatalysts with advanced structure is of great essential for energy conversion devices. Herein, a multi-dimensional hierarchical strategy is proposed to design melamine sponge-derived sulfur and nitrogen co-doped tetrapod carbon (SNTC) supported cobalt–nickel telluride (CoTe 2 /SNTC, NiTe 2 /SNTC, and CoNiTe 2 /SNTC) 1D/3D and 0D/3D nanohybrids for boosting hydrogen evolution reaction (HER) and triiodide reduction reaction (IRR). Among these, the CoNiTe 2 /SNTC 0D/3D hybrid exhibited superior catalytic activities and excellent electrochemical stability. In alkaline HER, the CoNiTe 2 /SNTC catalyst had a low Tafel slope of 72 mV dec −1 , which was comparable to that of Pt/C (49 mV dec −1 ). CoNiTe 2 /SNTC served as counter electrode catalyst in photovoltaics and obtained a power conversion efficiency (PCE) of 8.11%, which is higher than that of Pt (7.25%). This investigation provides a novel approach for designing highly efficient nanohybrid catalysts in advanced energy devices.
研究领域:
材料科学
·
能源转换技术
✓ 已验证
DOI
高影响因子
INORGANIC CHEMISTRY
·
2018
·
IF 4.7
Yi-Gang Chen,Nan Yang,Xiao-Ni Yao,Cheng-Bo Li,Yao Guo,Xian-Ming Zhang
Four new tellurites were hydrothermally synthesized by the adjustment of different alkali-metal ions, and all of the compounds demonstrate 2D layer structures. Rb2Te4O9·2H2O in centrosymmetric space group Pccn features a new [Te4O9]∞2– anion sheet consisting of rare [Te8O22]12– groups. RbNaTe8O14(OH)6·8H2O in CS space group P1̅ exhibits a [Te4O9]∞2– anion layer by linkage of the TeO3 and TeO4 units. NaPb4Te4O12F located in CS space group P4/n displays an unusual [PbTeO3]∞ neutral layer made up of PbO3 and TeO3 trigonal pyramids. RbK3Te8O18·5H2O lying in noncentrosymmetric (NCS) space group Cc shows a [Te4O9]∞2– anion layer composed of the TeO3 and TeO4 units; its second-harmonic-generation response is about 0.2 times that of KH2PO4; structure analysis and local dipole moment calculation verify that the weak polarization mostly from the [Te4O9]∞2– layer results from the inverse arrangement of TeOn units, and further theoretical calculation confirms that TeOn groups dominate the band gap of RbK3Te8O18·5H2O and optical properties. Meanwhile, systematic analyses of a series of metal tellurites reveal that the alkali-metal cations exert a considerable impact on polarization of the crystal structures, which puts forward a feasible idea about the design of new NCS materials.
研究领域:
无机化学
·
材料科学
✓ 已验证
DOI
高影响因子
Frontiers in Chemistry
·
2021
·
IF 5.221
Lu Guolong,Ye Chunnuan,Li Wenyan,He Xuedong,Chen Guang,Li Jun,Jin Huile,Wang Shun,Wang Jichang
This study is dedicated to expand the family of lithium-tellurium sulfide batteries, which have been recognized as a promising choice for future energy storage systems. Herein, a novel electrochemical method has been applied to engineer micro-nano TexSy material, and it is found that TexSy phases combined with multi-walled carbon nanotubes endow the as-constructed lithium-ion batteries excellent cycling stability and high rate performance. In the process of material synthesis, the sulfur was successfully embedded into the tellurium matrix, which improved the overall capacity performance. TexSy was characterized and verified as a micro-nano-structured material with less Te and more S. Compared with the original pure Te particles, the capacity is greatly improved, and the volume expansion change is effectively inhibited. After the assembly of Li-TexSy battery, the stable electrical contact and rapid transport capacity of lithium ions, as well as significant electrochemical performance are verified.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Journal of Innovative Optical Health Sciences
·
2024
·
IF 2.3
Fangjia Li,Jing Zhang,Huan Xiong,Lihua Min,Li Gou
Low-cost and biodegradable photothermal wound dressings with remarkable therapeutic effects are highly desirable for next-generation wound healing. Herein, we report an efficient photothermal wound dressing mat made of tellurium nanosheet (TeNS)-loaded electrospun polycaprolactone/gelatin (PCL/GEL) nanofibers. The TeNS-loaded PCL/GEL nanofibrous architectures showed antibacterial efficacy against Escherichia coli and Staphylococcus aureus of 87.68% and 94.57%, respectively. Under near-infrared (NIR) light illumination, they can facilitate cell proliferation as revealed by in vitro scratch assay. The results from in vivo skin wounds combined with tissue staining experiments further showed that the TeNS-loaded dressing could substantially promote wound healing under photothermal conditions. Using immunohistochemical analysis, we found that the TeNS-loaded PCL/GEL nanofibers + NIR group have a high expression of specific antigens in epidermal growth factor (EGF) ( P < 0 . 0 1 ) and endothelial cell adhesion molecule-31 (CD31, P < 0 . 0 5 ), verifying that the nanofibrous mat can stimulate EGF generation and microvessel proliferation. Furthermore, the PCL/GEL/Te + NIR group has the lowest expression in endothelial cell adhesion molecule-68 (CD68, P < 0 . 0 1 ), suggesting that the nanofibrous mats have a high anti-inflammatory efficiency. Our work sheds light on the development of novel nonanti-inflammatory wound dressings via photothermal sterilization and the promotion of cell growth using two-dimensional (2D) nanosheets.
研究领域:
生物医学材料
·
组织工程
·
光热疗法
✓ 已验证
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Ranran Wei,Xiaoying Zhang,Min Yan,Yaxuan Li,Ruichen Geng,Zekai Shen,Yinglong Wang,Shuli Yin
Ammonia (NH3), the second most produced chemical in the world, is predominantly utilized in fertilizer production to underpin modern agriculture and has recently attracted interest as an energy-dense source of renewable energy. Herein, an amorphous CuTe porous nanonets (CuTe PNs) catalyst with p-d orbital hybridization was designed and prepared for NH3 synthesis via the nitrite reduction reaction. The porous and amorphous structure of CuTe PNs provides sufficient channels for molecular penetration and enhances active site accessibility through its abundant defects and vacancies, facilitating electrochemical reactions. The CuTe PNs exhibit excellent nitrite reduction reaction performance (NH3 yield: 633.7 μg h–1 mgcat–1, Faradaic efficiency: 91.41%, NH3 selectivity: 92.2%). This work describes a powerful pathway for the fabrication of p-d orbital hybrid amorphous porous nanonets catalysts and also provides a new possibility for the electrochemical synthesis of NH3.
研究领域:
材料科学
·
电化学
·
催化化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2025
·
IF 5.5
Yanqi Ge,Fumei Yang,Yimiao Chen,Meng Wang,Weicheng Chen,Ye Zhang
van der Waals heterojunctions (vdWHs) have emerged as a promising strategy to improve the optoelectronic properties of materials for use in optoelectronic devices. In this study, independent tellurium nanotube (Te NT) structures with diameters of approximately 80 ± 10 nm were first synthesized. Subsequently, zero-dimensional (0D) bismuth quantum dots (Bi QDs) were uniformly deposited on the surface of one-dimensional (1D) Te NTs via a hydrothermal bottom-up assembly process, successfully constructing a mixed-dimensional Bi/Te van der Waals heterojunction (vdWH) with Bi QDs densely distributed around the Te NTs. The nonlinear optical properties of the heterojunction were systematically investigated. Due to the built-in electric field at the tellurium/bismuth interface, these vdWHs show significantly enhanced nonlinear absorption, lower saturation intensity, and improved carrier transport. These properties make Bi/Te vdWHs promising candidates for advanced optical applications. Furthermore, stable ultrashort pulses and bound-state solitons at a 1.5 μm wavelength were generated by incorporating Bi/Te vdWHs as saturable absorbers within an erbium-doped fiber laser cavity. Such findings highlight the potential of Bi/Te vdWHs as a versatile platform for developing high-performance optical devices with enhanced optoelectronic and nonlinear optical properties.
研究领域:
材料科学
·
光学工程
·
纳米技术
✓ 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）