Advanced Electronic Materials
·
2025
·
IF 5.3
Mingxing Cao,Zhigao Zhang,Jian He,Ruifen Hou,Wenjie Gong,Zhihong Wang
Tungsten telluride (WTe 2 ) and silver telluride (Ag 2 Te) are recently developed magnetoresistive materials, and bulk composites of these materials would be extremely advantageous in improving the magnetoresistance characteristics of the individual components and expanding their applications. In this study, previously developed synthesis methods for WTe 2 and Ag 2 Te are applied to effectively engineer WTe 2 and Ag 2 Te bulk composites. Introducing 10% Ag 2 Te in the WTe 2 matrix improves the magnetoresistance and lowers the critical magnetic field and higher onset temperature relative to those of pure-phase WTe 2 . The relationship between the magnetoresistance performance and Ag 2 Te content is further explored using simulations. The onset temperature and critical magnetic field follow the Kohler rule based on resistance calculations. The excellent composite magnetoresistance of these materials will find applications in the field of electronics.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Huiting Xu,Wenyue Yang,Huibin Liu,Meng Li,Siqi Gong,Fan Zhao,Chunli Li,Junjie Qi,Honghai Wang,Wenchao Peng,Xiaobin Fan,Jiapeng Liu
Aqueous zinc-ion batteries have attracted extensive attention due to their environmental friendliness, low cost and high theoretical capacity. Among them, the conventional cathode materials mainly rely on ion intercalation or surface redox mechanisms, which usually exhibit unsatisfactory specific capacity. Currently, aqueous zinc-tellurium (Zn-Te) batteries based on conversion mechanisms have shown great potential to provide greater specific capacity. However, the sluggish electrochemical reaction kinetics limits the further development of Zn-Te batteries. Herein, the hierarchical structure was prepared by in situ growing MoS 2 on N, F co-doped porous carbon nanosheets (MoS 2 @NFC), which served as Te hosts to construct aqueous Zn-Te batteries. Benefitting from the hierarchical structure and unique catalytic property of the MoS 2 @NFC, the kinetics of Te redox reaction was remarkably enhanced for aqueous Zn-Te batteries. As a result, the aqueous Zn-Te batteries based the Te-MoS 2 @NFC electrode exhibited high specific capacity (483 mAh g −1 at 150 mA g −1 ), outstanding rate performance and excellent cycling stability. Furthermore, the catalytic conversion mechanism of Zn-Te batteries was systematically explored through various ex-situ characterization methods and density functional theory (DFT) calculations. Therefore, this work provides a novel idea to design high performance conversion-type aqueous zinc-ion batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2021
·Vol. 11
·期 11
·2903
·
IF 5.076
Yan Li,Ye Zhang
Low-dimensional nanomaterials have attracted considerable attention for next-generation flexible energy devices owing to their excellent electrochemical properties and superior flexibility. Herein, uniform Tellurium nanotubes (Te NTs) were prepared through a facile hydrothermal method, and then a flexible and freestanding electrode was fabricated with Te NTs as active materials and a small amount of nanofibrillated celluloses (NFCs) as a flexible matrix through a vacuum filtration method without adding extra conductive carbon or a binder. The resulting Te-based electrode exhibits a high volumetric capacity of 1512 mAh cm−3at 200 mA g−1, and delivers admirable cyclic stability (capacity retention of 104% over 300 cycles) and excellent rate performance (833 mAh cm−3at 1000 mA g−1), which benefits from the unique structure and intrinsically superior conductivity of Te NTs. After bending 50 times, the Te-based electrode delivers a desirable volumetric capacity of 1117 mAh cm−3, and remains 93% of initial capacity after 100 cycles. The results imply that the Te-based electrode exhibits excellent electrochemical properties and superior flexibility simultaneously, which can serve as a potential candidate for the flexible lithium batteries.Keywords:tellurium nanotubes;nanofibrillated cellulose;flexible electrode;Li-Te battery
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Wendan Wang,Xuhui Zhang,Huiyun Tang,Tianpeng Chen,Chao Luo,Tingling Huang,Di Mei,Qijun Liu,Xin Li,Hongliang Dong
The sintering behavior of polycrystalline diamond with a tellurium (Te) catalyst was studied at 10 GPa and 1750-1900 °C. CALYPSO software was used to find three crystal structures of carbon-tellurium (C-Te) compounds: CTe, CTe 2 , and C 3 Te 8 . The experimental results indicate that at 10 GPa, Te reacts with diamond only above 1850 °C. The C-Te compounds decompose into diamond and Te during cooling and pressure release. The Te from decomposition has a different crystal structure from those unreacted. Rapid cooling can retain some C-Te compounds at room temperature and pressure. By comparing the X-ray diffraction patterns of the C-Te compounds separated from the sample's spectrum with those of the three calculated crystal structures, it is suggested that the C-Te compounds in recovered sample are most likely orthorhombic CTe 2 . And computational results suggest that TeC may be the true catalyst in the diamond formation process. In samples sintered at 10 GPa, 1850 °C and 1900 °C, grain boundaries between diamond grains disappear. Hardness tests show these samples have an average Vickers hardness of about 61 GPa, similar to commercial polycrystalline diamond compacts.
研究领域:
材料科学
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高压物理
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无机化学
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凝聚态物理
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超硬材料
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2023
·Vol. 19
·期 50
·2304504
·
IF 13.3
Honghai Wang,Wenyue Yang,Huiting Xu,Meng Li,Huibin Liu,Siqi Gong,Fan Zhao,Chunli Li,Junjie Qi,Wenchao Peng,Jiapeng Liu
Aqueous zinc-ion batteries (AZIBs) are considered to be one of the most promising devices for large-scale energy storage systems owing to their high theoretical capacity, environmental friendliness, and safety. However, the ionic intercalation or surface redox mechanisms in conventional cathode materials generally result in unsatisfactory capacities. Conversion-type aqueous zinc–tellurium (Zn–Te) batteries have recently gained widespread attention owing to their high theoretical specific capacities. However, it remains an enormous challenge to improve the slow kinetics of the aqueous Zn–Te batteries. Here, MoO 2 nanoclusters embedded in hierarchical nitrogen-doped carbon nanoflower (MoO 2 /NC) hosts are successfully synthesized and loaded with Te in aqueous Zn–Te batteries. Benefitting from the highly dispersed MoO 2 nanoclusters and hierarchical nanoflower structure with a large specific surface area, the electrochemical kinetics of the Te redox reaction are significantly improved. As a result, the Te-MoO 2 /NC electrode exhibits superior cycling stability and a high specific capacity of 493 mAh g −1 at 0.1 A g −1 . Meanwhile, the conversion mechanism is systematically explored using a variety of ex situ characterization methods. Therefore, this study provides a novel approach for enhancing the kinetics of the Te redox reaction in aqueous Zn–Te batteries.
研究领域:
材料科学
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电化学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2025
·
IF 11.3
Shupeng Sun,Xinlei Li,Yanhui Sun,Nan Wang,Baoyu Huang,Xiaogan Li
Tellurium nanotubes (TeNT) heterojunction with Tellurium oxide (TeO 2 ) were prepared by in situ oxidation at elevated temperatures in air. The chemiresistive type NO 2 sensor was then fabricated by depositing the synthesized TeNT/TeO 2 on the integrated gold electrodes. The response of the TeNT/TeO 2 based sensor to 600 ppb NO 2 was 38.8 %, which was about 3.2 times higher than that of the single-phase TeNT based sensor (12.1 %). The response and recovery time are 39 s and 49 s, respectively, which are substantially reduced compared to those of the pristine TeNT based sensor (133 s and 336 s) and the results reported in literature. The sensor also exhibits good stability with a response deviation of less than 2 % for 45 days and a good resistance to environmental disturbances. The improved sensor performance can be attributed to the heterojunction formed between TeNT and TeO 2 . Density Functional Theory (DFT) calculations show that the formed TeNT/TeO 2 heterojunction enhances the adsorption energy (-0.671 eV) and charge transfer (0.49 |e|) between NO 2 and the TeNT/TeO 2 .
研究领域:
材料科学
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环境科学
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化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ENVIRONMENTAL RESEARCH
·
2023
·
IF 8.3
Yuqing Liu,Huiqing Ma,Ang Li,Haixia Pan,Xianliang Yi,Yang Liu,Jingjing Zhan,Hao Zhou
Tellurium (Te) is a rare element within the chalcogen group, and its biogeochemical cycle has been studied extensively. Tellurite (Te(IV)) is the most soluble Te species and is highly toxic to organisms. Chemical or biological Te(IV) reduction to elemental tellurium (Te 0 ) is generally considered an effective detoxification route for Te(IV)-containing wastewater. This study unveils a previously unnoticed Te 0 oxidation process mediated by the manganese-oxidizing bacterium Bacillus sp. FF-1. This bacterium, which exhibits both Mn(II)-oxidizing and Te(IV)-reducing abilities, can produce manganese oxides (BioMnO x ) and Te 0 (BioTe 0 ) when exposed to Mn(II) and Te(IV), respectively. When 5 mM Mn(II) was added after incubating 0.1 mM or 1 mM Te(IV) with strain FF-1 for 16 h, BioTe 0 was certainly re-oxidized to Te(IV) by BioMnOx. Chemogenic and exogenous biogenic Te 0 can also be oxidized by BioMnOx, although at different rates. This study highlights a new transformation process of tellurium species mediated by manganese-oxidizing bacteria, revealing that the environmental fate and ecological risks of Te 0 need to be re-evaluated.
研究领域:
微生物学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Mingyang Liu,Qi Li,Xudong Xiao,Xuena Ma,Xiaoqin Xu,Yihang Yin,Bin Zhang,Minghui Ding,Jinlong Zou,Baojiang Jiang
Interface engineering has been recognized as one of the most promising strategies for tuning the catalytic properties of catalysts. However, building well-defined nanointerfaces for efficient oxygen reduction/evolution reactions (ORR/OER) remains a challenge. Herein, a hollow heterostructure composed of highly-dispersed CoTe 2 inside the mesoporous walls of nitrogen-doped carbon nanoboxes and uniformly-dispersed NiTe 2 outside the mesoporous walls (H-CoTe 2 /NiTe 2 @NCBs) is designed via a ZIF67-involved etching-anchoring-tellurization strategy. Promising half-wave potential of 0.86 V and overpotential of 320 mV at 10 mA cm −2 are obtained by H-CoTe 2 /NiTe 2 @NCBs. The excellent ORR/OER activity of H-CoTe 2 /NiTe 2 @NCBs is ascribed to the synergistic coupling based on nanointerfaces between CoTe 2 and NiTe 2 . Density functional theory calculations confirm that the nanointerface-based electronic coupling between CoTe 2 and NiTe 2 facilitates the charge transfer between two components and generates abundant catalytically active sites at the heterointerface, thereby significantly promoting the ORR/OER activities. This work provides the design principles for transitional bimetallic tellurides as bifunctional electrocatalysts.
研究领域:
材料科学
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电化学
·
催化
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产品关联
DOI
高影响因子
JOURNAL OF NANOPARTICLE RESEARCH
·
2019
·Vol. 21
·期 6
·1-10
·
IF 2.009
Wang Wenfang,Liu Jing,Li Xia,Jiang Qinglin,Xu Jingkun,Luo Chan,Liu Peipei,Tan Rongri,Du Yukou,Jiang Fengxing
One-dimensional silver telluride nanowires (NWs) as potential thermoelectric materials have been studied extensively. At present, most of the efforts are focused on p-type silver telluride, while limited works have been achieved on the preparation of n-type silver telluride. Herein, we prepared n-type Te/Ag 2 Te NWs by galvanic exchange reaction and fabricated a nanofilm. As a simple and cost-effective method, galvanic exchange reaction was employed to prepare n-type Te/Ag 2 Te NWs with obtained Seebeck coefficient of − 93.98 μV K −1 . The nanostructure and chemical composition as well as structural phase transition of as-prepared n-type Te/Ag 2 Te NWs were characterized and discussed. Besides, the thermoelectric thin film device consisting of n-type Te/Ag 2 Te nanofilms and p-type Ag-doped Te nanofilms obtained by one-step hydrothermal method was assembled and exhibited accessible output voltage as 65 mV at the 75 K temperature difference, which may provide the fundament for the development of inorganic thermoelectric nanofilm device.
研究领域:
材料科学
·
热电学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Jinpeng Hu,Yaru Cui,Yu Hao,Juan Wang,Xihong He,Shufeng Yang
Owing to the high theoretical capacity, multi-electron reactions and semimetallic characteristics, metal tellurides present promising potential for sodium-ion storage. Yet structural collapse and capacity degradation remain inevitable. In this work, a structural confinement strategy was employed to fabricate zinc-telluride/cobalt-telluride heterostructures (ZnTe/CoTe 2 @NC) that is constrained by nitrogen-doped carbon (NC) derived from a metal-organic framework (MOF) and reinforced by carbon nanotubes (CNTs), via template self-assembly followed by in-situ tellurization. The CNTs crosslink with the MOF precursor to yield a dual-restricted architecture that suppresses nanoparticles agglomeration and enhances cycling stability. In-situ and ex-situ techniques elucidate the “alloy-conversion” reaction mechanism and pseudocapacitive sodium storage behavior of the ZnTe/CoTe 2 @NC anodes. While the density functional theory (DFT) calculations reveal the electronic structure modulation underlying their enhanced conductivity. These favorable electrochemical features arise from the synergistic effects of the Zn-Co heterointerface, the highly conductive carbon network, and the abundant defect sites introduced by nitrogen doping, which mitigate sluggish ion transport and structural degradation. As a result, the ZnTe/CoTe 2 @NC anode delivers a high-rate capacity of 82.1 mAh·g −1 at 20.0 A g −1 and retains 106.1 mAh·g −1 at 1.0 A g −1 after 5000 cycles. This study offers a rational confinement strategy and provides insight into designing electrochemically durable telluride heterostructure anodes.
研究领域:
材料科学
·
电化学
·
纳米能源
·
储能技术
·
无机功能材料
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2020
·
IF 8.758
Heping Cui,Kai Zheng,Zhongjian Xie,Jiabing Yu,Xiangyi Zhu,Hao Ren,Zeping Wang,Feng Zhang,Xiandong Li,Lu-Qi Tao,Han Zhang,Xianping Chen
Industrial production, environmental monitoring, and clinical medicine put forward urgent demands for high-performance gas sensors. Two-dimensional (2D) materials are regarded as promising gas-sensing materials owing to their large surface-to-volume ratio, high surface activity, and abundant surface-active sites. However, it is still challenging to achieve facilely prepared materials with high sensitivity, fast response, full recovery, and robustness in harsh environments for gas sensing. Here, a combination of experiments and density functional theory (DFT) calculations is performed to explore the application of tellurene in gas sensors. The prepared tellurene nanoflakes via facile liquid-phase exfoliation show an excellent response to NO2 (25 ppb, 201.8% and 150 ppb, 264.3%) and an ultralow theory detection limit (DL) of 0.214 ppb at room temperature, which is excellent compared to that of most reported 2D materials. Furthermore, tellurene sensors present a fast response (25 ppb, 83 s and 100 ppb, 26 s) and recovery (25 ppb, 458 s and 100 ppb, 290 s). The DFT calculations further clarify the reasons for enhanced electrical conductivity after NO2 adsorption because of the interfacial electron transfer from tellurene to NO2, revealing an underlying explanation for tellurene-based gas sensors. These results indicate that tellurene is eminently promising for detecting NO2 with superior sensitivity, favorable selectivity, an ultralow DL, fast response-recovery, and high stability.
研究领域:
材料科学
·
环境科学
·
化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2018
·
IF 4.439
Jia Liu,Xiaoning Ma,Yanping Tong,Meidong Lang
Ditelluride bonds have been reported as dynamic covalent bonds which could undergo reversible formation and cleavage at room-temperature. In this work, a novel self-healing ditelluride-containing polyurethane was synthesized by incorporating ditelluride bond into its main chain. Base on the dynamic nature of ditelluride bonds, this polyurethane could self-heal in darkness at room temperature without external intervention. The study on the exchange mechanism revealed that the reversible exchange of ditelluride bonds and the intermolecular hydrogen bonding were the two main factors that responsible for the self-healing behavior of this polyurethane. The ditelluride content and chain mobility of the polymer have a significant effect on its self-healing property. The unique non-intervention self-healing properties and wild applicability makes this polymers ideal for environment friendly smart systems.
研究领域:
材料科学
·
化学
✓ 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）