Materials Today Chemistry
·
2025
·
IF 6.7
Yaoning Bai,Mingwei Li,Yiwen Zhang,Ping Zhang,Huiming Ji
Barium titanate (BaTiO 3 , BT) is an excellent electronic material with great application for multilayer ceramic capacitors (MLCCs). In this work, BaTiO 3 based- In 2 O 3 ·SnO 2 (ITO) composite ceramics were synthesized via solid-state reaction method, which optimizes the dielectric properties of the BT-based materials through the atomic scale to the micro-nano scale. The BaTiO 3 based material is composited with ITO to construct the percolation capacitor, which greatly enhances the room-temperature dielectric constant of BT-based materials. Among them, the grain sizes of BT-based material and ITO are 552–581 nm and 483–553 nm, respectively. In addition, BT-based materials are obtained after optimization of the rare earth ion doping effect and the “core-shell” effect. The substitutional defects generated by the rare earth Gd 3+ ions produce abundant positive and negative charges in the core phase BT, which also leads to the optimization of the room-temperature permittivity. Meanwhile, the “core-shell” structure produced by niobate-encapsulated BT-based material with doped Gd 3+ ions further enhances the dielectric-temperature stability of BT-based materials. Based on the synergy of rare earth ion doping effect, “core-shell” effect, and percolation effect, Ba 0.9985 Gd 0.0015 @(Ni,Mn)Nb 2 O 6 -ITO (BGT@(N,M)NO-ITO) percolation composite ceramics have a room temperature dielectric constant as high as 7184 with a dielectric low loss of 3.8 %, and the temperature stability meets X8R. In this work, the BGT@(N,M)NO-ITO percolation composite ceramics with excellent dielectric properties are expected to be used in MLCCs, which further broadens the application of BT-based materials.
研究领域:
材料科学
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陶瓷
·
介电材料
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电子材料
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电容器技术
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Huazhang Sun,Jing Yang,Yifan Yang,Ziman Weng,Jinghua Wu,Hongli Wan,Xiayin Yao
Sodium-based all-solid-state batteries are considered as promising alternatives to lithium-ion batteries, benefiting from the improved safety and lower cost. However, low ionic conductivity of solid electrolytes as well as poor interfacial contacts among electrodes and solid electrolyte are still the main challenges limiting their practical applications. Herein, a Zn, Mg, and Sc co-doped NASICON-type solid electrolyte Na 3.45 Zr 1.85 (ZnMgSc) 0.05 Si 2.2 P 0.8 O 12 is designed and exhibits a significantly enhanced ionic conductivity of 4.24 mS cm −1 , which is one order of magnitude higher than that of the undoped Na 3 Zr 2 Si 2 PO 12 . Meanwhile, a thin indium tin oxide layer is applied onto the solid electrolyte surface using magnetron sputtering, thereby enhancing stability and wettability at the interface between solid electrolyte and sodium metal anode. This surface treatment strategy significantly raises the critical current density from 0.59 mA cm −2 to 9.95 mA cm −2 while effectively preventing the formation of sodium dendrite. As a result, Na|ITO@Na 3.45 Zr 1.85 (ZnMgSc) 0.05 Si 2.2 P 0.8 O 12 @ITO|Na symmetric battery maintains excellent cycling stability for 1700 h at 60 °C under 6 mA cm −2 , and exhibits stable performance over 2000 h at 2 mA cm −2 under room temperature. In addition, Na 3 V 2 (PO 4 ) 3 |Na 3.45 Zr 1.85 (ZnMgSc) 0.05 Si 2.2 P 0.8 O 12 @ITO|Na battery delivers an initial discharge capacity of 114.6 mAh g −1 with a Coulombic efficiency of 96.36 % at 0.1C and maintains 89.2 % capacity after 1000 cycles at 2C-rate.
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APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2014
·Vol. 117
·期 4
·2127-2132
·
IF 1.694
Tang Hongbo,Su Yuchang,Hu Te,Liu Shidong,Mu Shijia,Xiao Lihua
In this work, different compositions of lanthanum hexaboride (LaB 6 ) and tin-doped indium oxide (ITO) nanoparticles were doped into poly(vinylbutyral) (PVB) matrix to prepare PVB/LaB 6 –ITO nanocomposite (PLINC) films by a solution casting method. X-ray diffraction, Fourier transform infrared spectroscopy, field emission scanning electron microscopy, thermogravimetric analysis (TGA) and ultraviolet–visible–near infrared spectroscopy (UV–vis–NIR) were employed to characterize the PLINCs. The TGA and UV–vis–NIR results reveal that the nanocomposite films possessed outstanding thermal stability. The temperature where 5 % weight loss of the PVB matrix was improved after the addition of LaB 6 and ITO particles and the property for blocking near infrared light was also enhanced as compared with the case of pure PVB film.
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MICROCHEMICAL JOURNAL
·
2026
·
IF 5.1
Tingting Wu,Xuejing Liu,Zhenyuan Xing,Dawei Fan,Zhen Yu,Huan Wang,Qin Wei
In this work, a sensitive and reliable photoelectrochemical (PEC) sensor array integrated on a single electrode was developed for the spatially addressable detection of neuron-specific enolase (NSE), using Bi 2 O 3 /Bi 2 S 3 /Ag 2 S nanodendrites as the substrate electrode material. The Bi 2 O 3 /Bi 2 S 3 structure was grown in situ on an indium tin oxide (ITO) electrode to form large-area nanoarrays, whose uniform distribution helps minimize performance variations across different regions and enables light-addressable detection. Furthermore, Ag 2 S, a narrow-bandgap semiconductor with excellent photoelectric properties, was incorporated into the Bi 2 O 3 /Bi 2 S 3 system to enhance the photoelectrochemical response. The resulting Bi 2 O 3 /Bi 2 S 3 /Ag 2 S-modified ITO electrode was partitioned into five independent regions using insulating stickers, allowing addressable and continuous detection of multiple samples. Since the entire sensor array was fabricated in a single preparation step, inter-regional variability was significantly reduced, enabling the application of a self-calibration strategy to further improve sensitivity and accuracy. Under optimal conditions, the PEC sensor array detected NSE over a concentration range of 0.01–100 ng/mL, with a detection limit of 2.0 pg/mL (S/N = 3). The sensor also exhibited high selectivity, stability, and reproducibility, demonstrating its strong potential for real-sample applications.
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ENVIRONMENTAL POLLUTION
·
2021
·
IF 8.071
Jing Qu,Jianli Wang,Haopeng Zhang,Jingying Wu,Xinmo Ma,Shile Wang,Yiteng Zang,Yuhui Huang,Ying Ma,Yuna Cao,Daming Wu,Ting Zhang
Indium tin oxide (ITO) is an important semiconductor material , because of increasing commercial products consumption and potentially exposed workers worldwide. So, urgently we need to assess and manage potential health risks of ITO. Although the Occupational Exposure Limit (OEL) has been established for ITO exposure, there is still a lack of distinguishing the risks of exposure to particles of different sizes. Therefore, obtaining toxicological data of small-sized particles will help to improve its risk assessment data. Important questions raised in quantitative risk assessments for ITO particles are whether biodistribution of ITO particles is affected by particle size and to what extent systematic adverse responses is subsequently initiated. In order to determine whether this toxicological paradigm for size is relevant in ITO toxic effect, we performed comparative studies on the toxicokinetics and sub-acute toxicity test of ITO in mice. The results indicate both sized-ITO resided in the lung tissue and slowly excreted from the mice, and the smaller size of ITO being cleared more slowly. Only a little ITO was transferred to other organs, especially with higher blood flow. Two type of ITO which deposit in the lung mainly impacts respiratory system and may injure liver or kidney. After sub-acute exposure to ITO, inflammation featured by neutrophils infiltration and fibrosis with both dose and size effects have been observed. Our findings revealed toxicokinetics and dose-dependent pulmonary toxicity in mice via oropharyngeal aspiration exposure, also replenish in vivo risk assessment of ITO. Collectively, these data indicate that under the current OEL, there are potential toxic effects after exposure to the ITO particles. The observed size-dependent biodistribution patterns and toxic effect might be important for approaching the hazard potential of small-sized ITO in an occupational environment.
研究领域:
毒理学
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环境健康
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职业医学
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DOI
PubMed
高影响因子
LANGMUIR
·
2017
·
IF 3.833
Zhendong Li,Yanfeng Liu,Kaicheng Zhang,Zhaowei Wang,Peng Huang,Dahua Li,Yi Zhou,Bo Song
To provide orthogonal solvent processable surface modification and improve the device stability of bulk-heterojunction polymer solar cells (PSCs), n-type semiconducting material naphthalene diimide (NDI) was chemically introduced onto the ITO surface as a cathode interlayer (CIL) using 3-bromopropyltrimethoxysilane (BrTMS) as a coupling agent. After modification, the work function of ITO can be decreased from 4.70 to 4.23 eV. The modified ITO cathode was applied in inverted PSCs based on PTB7-Th:PC71BM. With the CIL modification, a champion power conversion efficiency (PCE) of 5.87% was achieved, showing a dramatic improvement compared to that of devices (PCE = 3.58%) without CIL. More importantly, with these chemical bonded interlayers, the stability of inverted PSCs was greatly enhanced. The improved PCE and stability can be attributed to the increased open-circuit voltage and the formation of robust chemical bonds in NDI-TMS films, respectively. This study demonstrated that chemical modification of ITO with n-type semiconducting materials provides an avenue for not only solving the solvent orthogonal problem but also improving the device performance in terms of the PCE and the stability.
研究领域:
材料科学
·
光伏技术
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DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2023
·
IF 7.7
Chen Shao,Jian Zhang,Yuqing Liu,Yuting Jiang,Yanping Jia,Guomin Li,Zhong Sun
The presence of antibiotics such as Tetracycline (TC) in the water environment poses new challenges to traditional water treatment technologies . Simple and clean electrocatalytic technology has been widely used in the degradation of antibiotic-based wastewater. In this study, agarose (AG) was loaded onto ITO using an impregnation method, and Pd was deposited onto the AG/ITO electrode by electrodeposition , the Pd/AG/ITO composite electrode was prepared. The electrode was then observed and analyzed using SEM , XRD , FT-IR, and XPS . The optimal conditions for the electrocatalytic reaction were explored as follows: PdCl 2 concentration of 0.20 mmol/L, PdCl 2 deposition current of 3 mA, deposition time of 10 min, and degradation current of 8 mA. Under these optimal working conditions, the Pd/AG/ITO composite electrode achieved a degradation efficiency of 85.21% within 120 min. Through five replications, the degradation efficiency of the electrodes decreased by less than 3.50%, which indicated its good reusability and stability. Based on the generation of active substances during degradation and the analysis of LC-MS, potential degradation products , and degradation pathways were deduced, and it was proposed that the degradation of TC was completed by a synchronous redox reaction co-led by·OH and H*. Toxicity analysis of TC and its degradation products was performed using ECOSAR software. This study will promise to provide an effective method of degrading TC wastewater.
研究领域:
环境科学
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化学工程
·
材料科学
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BIOSENSORS & BIOELECTRONICS
·
2013
·
IF 5.437
Bing Sun,Lijian Chen,Yan Xu,Min Liu,Huanshun Yin,Shiyun Ai
A novel ultrasensitive photoelectrochemical immunosensor was fabricated based on 3-mercaptopropionic acid stabilized CdS/reduced graphene oxide (MPA-CdS/RGO) nanocomposites for indole-3-acetic acid (IAA) detection. The MPA-CdS/RGO nanocomposites were synthesized by in situ solvothermal growth of triangulated pyramidal CdS nanoparticles on the RGO sheet. 3-Mercaptopropionic acid (MPA) was employed as the modifier and bridge to immobilize the antibody. The nanocomposites were characterized by X-ray diffraction, transmission electron microscopy , scanning electron microscopy and UV/vis spectra. The results showed that the MPA-CdS/RGO nanocomposites revealed enhanced photocurrent response due to excellent electron transport properties of RGO and the improved assembly of CdS nanoparticles onto RGO sheet with the introduction of MPA. Based on the dependence of the photocurrent decline on the concentration of IAA, the proposed photoelectrochemical immunosensor for IAA depicted a linear range from 0.1 to 1000 ng/mL with a lower detection limit (0.05 ng/mL). The high sensitivity, reproducibility and specificity of the method permitted the method suitable to be used in real samples.
研究领域:
分析化学
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纳米技术
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生物传感器
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DOI
PubMed
高影响因子
INORGANIC CHEMISTRY
·
2026
·
IF 4.6
Ruonan Teng,Yan Ma,Mengyuan Li,Yichen Wang,Xiaoxia Han,Bing Zhao,Young Mee Jung,Yanan Wang,Weidong Ruan
A series of cubic-phase indium tin oxide (ITO) nanoparticles (NPs) with varying tin (Sn) doping ratios were synthesized via a solvothermal method. By precisely controlling the dopant concentration, the resulting ITO NPs of approximately 15 nm with excellent crystallinity achieved tunable infrared localized surface plasmon resonance (LSPR) absorption across the 1000–6000 nm wavelength range. For the first time, the antibacterial properties of ITO NPs under dark conditions were systematically investigated, revealing a strong correlation between their infrared LSPR absorption characteristics and antibacterial efficacy. Notably, ITO NPs with 5% Sn doping ratio exhibited the highest LSPR quality factor and the strongest antibacterial activity, producing an inhibition zone diameter 3.33 times larger than that of the control. In contrast, undoped, lightly doped, or excessively doped samples showed either diminished plasmonic quality factors, weak antibacterial activity, or a complete absence of antibacterial effects. This study represents the first demonstration of exploiting infrared LSPR-active ITO NPs for spontaneous antibacterial activity in darkness. The observed functionality is attributed to the NPs’ ability to absorb and convert ambient background radiation into localized energy. In summary, this work establishes ITO NPs as a novel class of inorganic antibacterial materials for dark environments with promising potential for coating and surface protection applications.
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FIBERS AND POLYMERS
·
2025
·
IF 2.3
Xu Jiang,Cui Ao,Chen Wenjing,Wang Rui,Hao Longyun
In this study, polypyrrole (PPy) coatings were fabricated on alginate nonwoven fabrics (ANFs) through electrochemical polymerization in a constant current mode, assisted by an indium tin oxide (ITO) conductive glass electrode. The effects of two anionic surfactants and two cationic surfactants on the polymerization process were compared. Among them, anionic DNS-86 exhibited the highest negative zeta potential, which significantly improved the dispersion of Py monomers and facilitated their uniform polymerization on ANFs. The mechanism of Py polymerization assisted by anionic surfactant was analyzed, revealing its dual roles as a surfactant and dopant. Characterization techniques including FTIR, XPS, and SEM confirmed the successful synthesis of PPy. The PPy coatings significantly increased the hydrophobicity of the ANFs while maintaining their flexibility. The resulting PPy-ANFs exhibited appreciable electrical conductivity and photothermal properties. This research would provide a new insight into the preparation of conductive polymers on green textile substrate for acquiring functionality.
研究领域:
材料科学
·
高分子化学
·
电化学
·
功能纺织品
·
纳米技术
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MICROCHIMICA ACTA
·
2016
·Vol. 184
·期 1
·279-287
·
IF 4.831
Wang Rong,Xu Yi,Wang Renjie,Wang Chunyan,Zhao Huazhou,Zheng Xiangquan,Liao Xing,Cheng Li
This article describes a microfluidic SERS chip-based rapid and high-throughput method for the determination of chemical and biological analytes, specifically of melamine. The chip consists of an indium tin oxide (ITO) glass plate modified with silver-gold nanocomposites (Ag-Au NCs) and a polydimethylsiloxane (PDMS) cover plate. The chip has five parallel microfluidic channels. The ITO glass provides electrical conductivity and has a smooth surface which makes it well suited for the deposition of the Ag-Au NC by electrodeposition and galvanic replacement. This technique allows good control of the morphology and composition of the composite. Under optimized conditions, the microfluidic SERS chip provides excellent sensitivity for 4-mercaptobenzoic acid (4-MBA). The detection limit is 0.1 nM and the SERS enhancement factor is 2.7×10 10 . The chip exhibits good stability over time and good reproducibility, with a RSD of 8.6 % between the 5 micro-channels. The chip was successfully applied to the determination of melamine in milk with a 10 nM detection limit and an analytical range from 10 nM to 0.1 mM. It is demonstrated that the microfluidic SERS chip developed here shows great promise for use in biochemical assays.
A microfluidic SERS chip employing gold nanocomposites (Ag-Au NCs) as SERS-active substrate was fabricated. Its SERS enhancement factor is 2.7⋅10 10 . The chip was applied to determinate melamine in milk with detection limit of 10 nM.
研究领域:
分析化学
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纳米技术
·
食品安全检测
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CERAMICS INTERNATIONAL
·
2020
·
IF 3.83
Xiaoyu Zhai,Yujie Chen,Yunqian Ma,Shichao Sun,Jiaxiang Liu
A new strategy of 44&285 nm binary-size particles system has been proposed and discussed systematically for fabricating fine grain, high density and low resistivity indium tin oxide (ITO) target. Polyvinyl pyrrolidone (PVP) and Polyvinyl alcohol (PVA) were used as dispersant and adhesive. The effects from PVP, PVA, sintering temperature and holding time have been systematically investigated. The target, prepared by 44 nm powders with a sintering temperature of 1550 °C and a holding time of 10 h, shows a maximum relative density of 99.31% and a minimum resistivity of 4.17 × 10 −4 Ω cm. Moreover, based on 285 nm powders, the target sintered at 1550 °C for 10 h shows a maximum relative density of 99.27% and a minimum resistivity of 4.11 × 10 −4 Ω cm. Significantly, 44&285 nm binary-size particles system obviously increases the density and decreases the resistivity of target. And the maximum relative density, minimum resistivity and grain size are 99.57%, 0.92 × 10 −4 Ω cm and 1.34 μm, respectively. In this model, the two designed particle sizes satisfy a formula of d = ( 2 3 3 − 1 ) × D . This new strategy contributes to preparing high-quality target, promoting the development of next generation ITO functional materials .
研究领域:
材料科学
·
电子工程
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