CERAMICS INTERNATIONAL
·
2013
·
IF 1.789
Qing Ma,Songping Wu,Yingxian Fan
Zn 2 SnO 4 ceramics were synthesized by the solid-state method. B 2 O 3 was added into the system to lower the sintering temperature . B 2 O 3 -doped Zn 2 SnO 4 materials were characterized by X-ray diffraction (XRD), electron microscopies (SEM/TEM/HRTEM/EDS), Raman and XPS spectroscopies. The inverse-spinel Zn 2 SnO 4 ceramics (containing 1 wt% B 2 O 3 ) sintered at 975 °C exhibited good microwave dielectric properties : ε r =9.3, Q × f =62,000 GHz and τ f =−50 ppm/°C. Zn 2 SnO 4 ceramics with low sintering temperatures are promising candidate materials for low-temperature cofired millimeter-wave devices.
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
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Zhengdao Li,Yan Xiong,Dongqin Bi,Qi Liu,Chuanyun Yang,Jia Zhang
To optimize the structure and composition of the metal oxide semiconductor is one of effective approaches to improve its gas-sensing performance. In this paper, Zn 2 SnO 4 solid octahedrons were first synthesized by a hydrothermal method , then converted to hollow structures with a shape preserved through a simple and practical acid etching process. Ultimately, the hierarchical ZnSnO 3 /Zn 2 SnO 4 hollow composite with porous structure was designed and prepared by in situ growth of ZnSnO 3 nanosheets on the surface of Zn 2 SnO 4 hollow octahedrons in the seed mediated wet-chemical way. It was found that through the structure evolution from solid octahedron to hollow structure, the sensitivity of gas sensor toward triethylamine (TEA) was visibly improved. Significantly, superior TEA-sensing properties, such as lower optimal working temperature, higher sensitivity, wider linear response range, more rapid response/recovery speed and more excellent selectivity were further achieved by decorating Zn 2 SnO 4 hollow octahedrons with ZnSnO 3 nanosheets. It was remarkable that the sensor based on hierarchical ZnSnO 3 /Zn 2 SnO 4 porous hollow octahedrons displayed long-term stability to TEA and anti-humidity property, suggesting its potential practical applications in detection of highly toxic TEA. The improved sensing mechanism on the strength of structure and composition evolution for the gas sensor was discussed in detail.
研究领域:
材料科学
·
传感器技术
✓ 已验证
DOI
高影响因子
RSC Advances
·
2021
·Vol. 11
·期 24
·14730-14736
·
IF 3.361
Jing Li,Fengmei Cheng,Haidong Li,Hongwen Zhang,Gang Wang,Daocheng Pan
Silver nanowire (AgNW) networks play an important role in the transparent conductive electrodes or antistatic coatings. In this work, we describe a facile two-step method to fabricate AgNWs/Zn2SnO4 composite films. Long AgNWs with a high aspect ratio were prepared through a modified polyol method, in which the organic octylamine hydrochloride rather than the commonly used inorganic chlorides was used as the shape-controlling agent. The AgNW networks were fabricated on the glass substrate, on which the Zn2SnO4 film was deposited, forming robust AgNWs/Zn2SnO4 composite films. The as-prepared composite films have strong adhesion, high thermal stability, low sheet resistance (5–15 ohm sq−1) and high light transmittance (85–80%), indicating a promising application prospect for transparent conductive electrodes and antistatic coatings.
研究领域:
材料科学
·
纳米技术
✓ 已验证
DOI
高影响因子
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2024
·Vol. 130
·期 11
·1-12
·
IF 2.5
Liu Hang,Tian Siye,Liu Yanchang,Liu Junlong,Qu Zhihao,Zhang Yuhong
In this paper, Zn 2 SnO 4 -SnO 2 -ZnO (ZSO) cubic nanomaterials are prepared by a hydrothermal method, and then ZSO composites with Au nanoparticles are prepared by a water bath heating method. The Au/ZSO nanomaterials are characterized by XRD, XPS, SEM and TEM. The results of XRD and XPS shows that the prepared samples have no other impurities, and also prove the existence of Au. The cubic structure of the sample was observed by SEM. The lattice spacings of Zn 2 SnO 4 , ZnO, SnO 2 and Au were calculated from TEM images. The gas sensing properties of pure ZSO and Au/ZSO nanocomposites are compared. At the optimum working temperature of 240 °C, the response of 3%Au/ZSO nanocomposite to 100 ppm triethylamine (TEA) is as high as 1595.5. Lower detection limit is as low as 3 ppm with a response value of 35.3. Importantly, this paper proposes an efficient method for preparing Au nanoparticles supported on ZSO and a gas sensor with high sensitivity response to TEA.
研究领域:
材料科学
·
传感器技术
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2021
·
IF 7.46
Chaoge Zhou,Fanqi Meng,Ke Chen,Xueli Yang,Tianshuang Wang,Peng Sun,Fangmeng Liu,Xu Yan,Kengo Shimanoe,Geyu Lu
In this work, we successfully prepare the octahedral NiO/Zn 2 SnO 4 p-n heterostructure by a simple hydrothermal synthesis and subsequent wet impregnation process. The microscopic morphology characterization results show that the as-prepared composites are uniformly dispersed and have an octahedral structure with a size of 3−5 μm. The gas devices are fabricated and their sensing performances are investigated systematically. The response and selectivity of NiO/Zn 2 SnO 4 composites to acetone have been significantly improved than that of pure Zn 2 SnO 4 . Moreover, the response of the sensor to 100 ppb acetone is 1.4 at 300 °C, indicating that the detection limit is less than 100 ppb. The enhancement in sensing properties of composites is largely due to the p-n heterojunction formed by NiO and Zn 2 SnO 4 , which causes the transfer of carriers and the catalytic effect of NiO.
研究领域:
材料科学
·
传感器技术
✓ 已验证
DOI
高影响因子
ACS Applied Energy Materials
·
2022
·
IF 6.959
Ramarajan Ramanathan,Michael Zinigrad,Dhivyaprasath Kasinathan,Ranjith Kumar Poobalan
Improving the power conversation efficiency of dye-sensitized solar cells (DSSCs) has become a challenge and a matter of interest for researchers. Designing a simple device structure with better performance by a cost-effective fabrication technique is essential for photovoltaic technology. This study emphasizes an alternative hybrid composite photoanode material for the DSSC devices. Pristine Zn2SnO4 and Zn2SnO4-SnO2 and Zn2SnO4-ZnO composites were synthesized by facile solid-state calcination to prepare the photoanode for DSSCs. The structural, surface morphological, optical, and band structural properties of the synthesized samples were studied. An attempt has been made to correlate the power conversion efficiency of the fabricated devices with the investigated properties. The X-ray diffraction analysis confirms the presence of multiphases that depend on the stoichiometric ratio of precursor materials. The surface morphology analysis reveals that the Zn2SnO4-SnO2 and Zn2SnO4-ZnO composites exhibit microsheet and microrod structures, respectively. The composite materials show a higher amount of dye loading, leading to better performance than the pristine Zn2SnO4 sample. A better band matching of the synthesized composite materials with other layers provides a higher carrier density. The composite photoanodes exhibit higher efficiency (6.26% for Zn2SnO4-SnO2 and 4.48% for Zn2SnO4-ZnO) than the pristine Zn2SnO4 photoanode (3.76%). The results indicate that the Zn2SnO4-based composites can be potential materials for photoanode applications.
研究领域:
材料科学
·
能源技术
·
光伏技术
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Weili Ye,Jin Li
Ammonia (NH 3 ) is a common but potentially hazardous gas that may cause inflammation of the lungs or other respiratory illnesses when exposed to high levels of NH 3 for extended periods. Therefore, preparing a gas sensor for real-time monitoring of NH 3 gas at room temperature is of great practical significance. In this paper, a Zn 2 SnO 4 /ZnO (ZZ) metal-oxide-semiconductor gas sensor with high response to NH 3 gas, low cost, easy fabrication, and high selectivity was successfully prepared by using a one-pot hydrothermal method. It was discovered that the content of the mineralizer NaOH serves to regulate the morphology of the samples. The results indicated that this method facilitated a more favorable formation of the n-n type heterojunction between Zn 2 SnO 4 and ZnO, leading to a substantial improvement in the sensor's sensitivity to NH 3 gas. Upon the addition of 3.75 mol/L NaOH, the Zn 2 SnO 4 and ZnO contents in the Zn 2 SnO 4 /ZnO (ZZ-3) samples were approximately equivalent. As a result, under the n-n heterojunction and synergistic interaction, the sensor demonstrated a significantly higher response (1756.1) to 500 ppm of NH 3 at RT, compared to the response values of the pure Zn 2 SnO 4 sample (24.3) and pure ZnO (23.6). Moreover, compared with the response values to other common harmful gases (500 ppm) in daily life, the response to NH 3 was approximately 10.7–1393.7 times higher. Meanwhile, the ZZ-3 samples also exhibit excellent long-term stability. This work provides an idea of using NaOH to modulate the material morphology for the preparation of gas-sensitive sensors.
研究领域:
材料科学
·
传感器技术
·
环境监测
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2017
·
IF 3.133
Hongyun Yue,Zhenpu Shi,Lan Wang,Xiangnan Li,Hongyu Dong,Yanhong Yin,Shuting Yang
Zn 2 SnO 4 @C/Sn composites were synthesized via the rapid calcination of a zinc-tin binary MOF under a reducing atmosphere for 1 min. Nanometal Sn, which has a good conductivity, and Zn 2 SnO 4 nanoparticles were assembled into secondary particles in the synthesized composites. The metal Sn acted as an active material and a conductive agent. The nanosized Zn 2 SnO 4 @C/Sn composites reduced the volume expansion and enhanced the electrochemical performance. Additionally, the carbon provided buffer spaces for the volume expansion of the active material. The metal Sn grew into large particles as the calcination time increased, which transformed the lithium storage process from surface controlled to diffusion controlled. When the Zn 2 SnO 4 @C/Sn composites were used as anode materials for LIBs , a superior electrochemical performance was achieved. A reversible capacity of up to 1140 mA h g −1 was obtained at a current density of 100 mA g −1 after 100 cycles. The reason for the capacity fading in the samples that were calcined for a long time was also analyzed, and the results might be helpful for researchers when designing new anode materials.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2022
·
IF 9.221
Yu Zhang,Yongguang Liu,Ling Wang,Huizhu Zhou,Weiwei Meng,Yuehua Li,Zhangxing He,Lei Dai
Spinel oxide Zn 2 SnO 4 with cubic structure was synthesized by solid state reaction method. A NH 3 sensor based on mixed potential mechanism were fabricated with 8% yttria stabilized zirconia electrolyte with bi-layered and Zn 2 SnO 4 sensing electrode (SE). The influence of Zn 2 SnO 4 -SE thickness and sintering temperature on the response performance of the sensor was evaluated. The results display that the sensor using Zn 2 SnO 4 -SE with a thickness of 17 µm and sintered at 1100 °C displays better performance, which is closely related to the microstructure of the Zn 2 SnO 4 -SE. The response signals are linearly related to the logarithm of the NH 3 concentrations over the operating temperature range and at 600 °C the sensor shows the highest sensitivity of − 61.8 mV/decade. The cross-sensitivity experiment results show that the cross-sensitivity of the sensor towards CO 2 and H 2 is hardly observed; the NH 3 sensitivity decreases with the increasing of O 2 content to some extent; relative humidity and NO or NO 2 cause serious interference. In order to eliminate NO or NO 2 interference, CuO was chosen to replace Pt as the reference electrode, and the results show that the cross-sensitivity of the sensor to NO or NO 2 was significantly reduced, but the sensitivity slightly decreases. The sensor also shows a relatively good long-term stability. The polarization curve and Tafel plots verify that the sensor complies with mixed potential model.
研究领域:
传感器学
·
材料科学
·
分析化学
·
环境监测
·
气体传感
✓ 已验证
DOI
高影响因子
Chemistry-An Asian Journal
·
2023
·Vol. 18
·期 17
·e202300505
·
IF 4.1
Siqi Li,Yuan Qu,Xiang Lu,Feiyu Zhang,Song Liu,Bin Li
Graphical This work successfully prepared vascular bundle Zn 2 SnO 4 using sorghum straw as a biological template through a simple hydrothermal pathway. The material displays a good gas sensing performance and far exceeds that of untreated materials. This low-cost, efficient, and renewable natural biomass template method has been proven to be an effective strategy for producing high-performance gas-sensing materials. The development of butyl acetate sensors with high sensitivity and selectivity has been highly desirable for its harmful effects on human health. In this work, we developed a high-performance butyl acetate sensor based on vascular bundle structure Zn 2 SnO 4 nanomaterial derived from maize straw. The vascular bundle structure Zn 2 SnO 4 with higher specific surface area obtained by calcination to remove the maize straw template, plays the dual role of accelerating the diffusion of gas molecules and providing more active sites. Our research showed that the sensor had a response of 18 to 100 ppm butyl acetate at a working temperature of 250 °C, with a fast response recovery rate (18 s/25 s), which showed significant improvement compared to the Zn 2 SnO 4 sensor prepared without templates. The improved performance can be attributed to the cross-linked nanoparticle chains and gas collision mechanism of the sensor. These findings highlight the potential of our sensor for the detection of butyl acetate gas.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Hang Li,Qian Ma,Jia Guo,Qi Zhang,Xueying Wang,Yi Wang
Porous and hollow SnO 2 /Zn 2 SnO 4 composites with typical one-dimensional (1D) structure have been synthesized by adjusting the amounts of 2-methylimidazole zinc salt (ZIF-8) added in the precursor solution through a modified electrospinning technology. Compared with the gas-sensing performance of different samples detected in the normal condition, it is confirmed that the optimal working temperature can be markedly decreased from 260 to 120 °C under UV light irradiation, along with the substantially improved gas selectivity. In addition, SnO 2 /Zn 2 SnO 4 heterostructures exhibit a higher response (increases from 1.7 to 2.8) and faster response/recovery times (decreases from 24/154 to 14/42 s) to triethylamine (TEA) than that of the pure SnO 2 . Significantly, the good practicality of gas sensors for food spoilage evaluation could be testified by effectively detecting the gas released during the putridity of prawns. UV light enhanced surface electron migration mainly contributes to the elevated synergistic effect between the formation of n-n heterojunction and tunable surface/interface electron transport behavior, as well as the adsorption and desorption of TEA molecules on the surface of the sensing materials.
研究领域:
材料科学
·
传感技术
✓ 已验证
DOI
高影响因子
Solar RRL
·
2023
·Vol. 8
·期 4
·2300926
·
IF 7.9
Qiuju Liu,Yang Liu,Hu Liu,Qingyong Tian,Bin Fan,Hua Bai
Room-temperature-processed (RTP) electron-transport layer (ETL) is a prerequisite for fabricating fully RTP perovskite solar cells (PSCs). Herein, an RTP-Zn 2 SnO 4 (ZSO) ETL is deposited for achieving RTP-PSCs by magnetron sputtering using ZnO and SnO 2 targets. The ZSO ETL exhibits great electrical properties, better band alignment, and yields increased grain size of the perovskite grown on it, thus facilitating electron extraction from the perovskite layer to the ETL. As a result, a champion power conversion efficiency of 21.06% is achieved in the ZSO-based device, which is the highest value for RTP-PSCs. The ZSO-based PSCs also exhibit high device stability. Moreover, the efficiency of a large-area perovskite module based on ZSO ETL reaches 17.79%.
研究领域:
材料科学
·
光伏技术
·
纳米材料
·
半导体物理
·
能源材料
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）