MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
·
2021
·
IF 3.927
Dongpo Xu,Yan Chen,Tianyi Qiu,Shuyan Qi,Li Zhang,Ming Yin,Kangjie Ge,Xiuxia Wei,Xinxin Tian,Pinggao Wang,Mingyuan Li,Jingxuan Qiu
In this work, the Staphylococcus aureus ( S. aureus ) was firstly used as a template coupled with PVP in electrospinning experiments, Sn 2+ bonded with S. aureus and PVP to form nanofiber through electrospinning. Finally, we got the hierarchical mesoporous SnO 2 nanotube after calcination of the nanofiber . The hierarchical mesoporous SnO 2 nanotube as a gas sensor toward triethylamine (TEA) shows high sensitivity, better cycling stability and selectivity. The response and recovery time of the hierarchical mesoporous SnO 2 nanotube to 10 ppm TEA are about 19 s and 10 s.
研究领域:
材料科学
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生物学
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传感器技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2023
·Vol. 34
·期 13
·1-12
·
IF 2.8
Liu Guoqiang,Xiong Xiaoyan,He Yuan,Gong Yunpeng,Li Siyi,Jin Tao,Chen Yufang
Triethylamine (TEA) sensors are an effective and powerful tool for real-time monitoring of TEA, and play an important role in early warning of production processes, environmental atmospheric monitoring and human health protection. In this paper, SnO 2 /ZnO complex oxide was prepared by calcining bimetallic organic frameworks (BMOFs) to improve both the selectivity, sensitivity and accuracy of TEA-sensing materials and devices. The results show that the obtained 5Sn5Zn complex oxide prepared by mol (Sn):mol (Zn) = 1:1 has excellent selective responsiveness, repeatability and longtime reliability stability to TEA gas at 270 °C Besides, the 5Sn5Zn complex oxide exhibits a rapid response/recovery performance to TEA at 100 ppm concentration ( T res / T rec = 4 s/60 s separately), especially at the high humidity of 40–90% relative humidity (RH), and the response degree of the 5Sn5Zn complex oxide to TEA only decreases by 17%. This may be the best TEA selective response stability achieved by SnO 2 /ZnO complex oxide material under high humidity conditions.
研究领域:
材料科学
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环境科学
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传感器技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2025
·
IF 5.5
Xudong Wu,Bingqian Zu,Aoshuo Tian,Song Chen,Zilong Xu,Tao Ma,Liang Wu
Tin dioxide (SnO2) anodes have emerged as a promising and cost-effective alternative for high-energy-density lithium-ion batteries (LIBs). However, their practical implementation is limited by rapid capacity degradation and poor rate performance, which are attributed to severe volume fluctuations, phase aggregation, and sluggish reaction kinetics during cycling. Here, we report a straightforward and efficient template-directed oxidation strategy for the synthesis of two-dimensional polycrystalline SnO2 nanosheets as advanced LIB anodes using layered tin diselenide nanosheets as sacrificial precursors. The SnO2 nanosheets synthesized at 500 °C (SnO2-500) exhibit a wrinkled lamellar architecture comprising interconnected SnO2 nanoparticles, which is advantageous for applications in LIBs. As a result, the obtained SnO2-500 anode delivered exceptional cycling stability (623.7 mA h g–1 after 100 cycles at 0.5 A g–1), along with outstanding specific capacity and rate performance (1245.7 mA h g–1 at 0.1 A g–1 and 554.1 mA h g–1 at 5 A g–1).
研究领域:
材料科学
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电化学
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纳米技术
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储能
✓ 已验证
产品关联
DOI
高影响因子
CRYSTENGCOMM
·
2017
·Vol. 20
·期 5
·556-562
·
IF 3.474
Song Jiang,Binghui Ge,Bojia Xu,Qinggang Wang,Baobao Cao
SnO2(ZnO:Sn)m is a recently reported new phase in the ZnO–SnO2 binary system with a naturally grown superlattice structure, which is currently only found in the form of one-dimensional nanowires. Difficulties in high-purity synthesis and orientation control have hindered further investigations into its potential unique physical properties. Here, we present a novel growth design of fabricating ZnO/SnO2(ZnO:Sn)m binary/superlattice heterojunction nanowire arrays by one-batch chemical vapor deposition to explore the rational growth mechanism of SnO2(ZnO:Sn)m superlattice nanostructures. The morphology, chemical composition and crystal structure of the as-prepared products were characterized by scanning electron microscopy, X-ray diffraction, energy-dispersive spectroscopy, X-ray photoelectron spectroscopy and Cs-corrected scanning transmission electron microscopy. It is revealed that the SnO2(ZnO:Sn)m superlattice section epitaxially grows on top of the ZnO nanowire along the [0001] direction, following the orientation relationships [10]Au//[110]ZnO/SnO2(ZnO:Sn)m and (111)Au//(0002)ZnO/SnO2(ZnO:Sn)m. The Au catalysts on the pre-grown ZnO nanowires play a key role in absorbing further loading of Zn/Sn vapor, inducing the formation of the SnO2(ZnO:Sn)m superlattice on the basal plane of ZnO, at the same time, avoiding the appearance of Sn-rich impurity phases. Photoluminescence measurements display a red shift of the ultraviolet (UV) emission peak from 381 nm to 386 nm and an extra peak at 470 nm, compared with the ZnO reference. This study would shed light on the rational growth of natural oxide superlattice nanowire arrays and complex axial heterojunction nanostructures.
研究领域:
材料科学
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纳米技术
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凝聚态物理
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2018
·Vol. 29
·期 15
·13138-13147
·
IF 2.324
Yang Yuqian,Wu Jihuai,Guo Panfeng,Liu Xuping,Guo Qiyao,Liu Quanzhen,Luo Hui
Lead amine halide perovskite solar cells (PSCs) have become dominant photovoltaic research topic in this decade. Electron transport layer (ETL) play a crucial role on PSCs. Here, we use tin tetrachloride as Sn source to synthesize SnO 2 nanocrystals in a simple hydrothermal method. The as-synthesized SnO 2 is spin-coated on FTO substrate, and then sintered under low temperature to form the ETL of planar PSCs. The concentration of SnO 2 spin-coating solution and sintering temperature have great influence on the ETL quality and charge transportation in PSCs. Through optimized treatment (0.15 M SnO 2 , 120 °C sintering), the high quality SnO 2 ETL with a uniform coverage, appropriate thickness, less charge recombination and low resistance can be obtained. Based on the ETL, a planar PSC with FA x MA 1−x PbI 3 achieves a high power conversion efficiency (PCE) of 19.34%. In addition, the planar PSCs based on SnO 2 exhibit a stable PCE output and slight hysteresis. These researches provide a low-cost, easy strategy to fabricate tin oxide, and present potential to replace traditional titanium oxide (TiO 2 ) in PSCs in the future.
研究领域:
材料科学
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光伏技术
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Frontiers in Chemistry
·
2021
·
IF 5.221
Wang Yingyi,Liu Lin,Sun Fuqin,Li Tie,Zhang Ting,Qin Sujie
This study reported a novel humidity-insensitive nitrogen dioxide (NO2) gas sensor based on tin dioxide (SnO2)/reduced graphene oxide (rGO) composites through the sol-gel method. The sensor demonstrated ppb-level NO2 detection in p-type sensing behaviors (13.6% response to 750 ppb). Because of the synergistic effect on SnO2/rGO p-n heterojunction, the sensing performance was greatly enhanced compared to that of bare rGO. The limit of detection of sensors was as low as 6.7 ppb under dry air. Moreover, benefited from the formed superhydrophobic structure of the SnO2/rGO composites (contact angle: 149.0°), the humidity showed a negligible influence on the dynamic response (Sg) of the sensor to different concentration of NO2 when increasing the relative humidity (RH) from 0 to 70% at 116°C. The relative conductivity of the sensor to 83% relative humidity was 0.11%. In addition, the response ratio (Sg/SRH) between 750 ppb NO2 and 83% RH was 649.0, indicating the negligible impaction of high-level ambient humidity on the sensor. The as-fabricated humidity-insensitive gas sensor can promise NO2 detection in real-world applications such as safety alarm, chemical engineering, and so on.
研究领域:
材料科学
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环境监测
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气体传感技术
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
·
2025
·
IF 3.1
Fang Jia,Xu Xilong,Yang Yi,Han Zhiqiang,Zuo Zinong,Han Weiqiang,Lin Bin
Effective removal of soot deposited in diesel particulate filter by catalysts has attracted great attention in the aftertreatment field to achieve environment protection, but the problem is short by incomplete and poor soot combustion. Herein, an integrated ZnO–SnO 2 semiconductor n–n heterostructure strategy of catalysts and ash is proposed for promoting diesel soot combustion. The integrated effects of different catalysts and ZnO ash on soot oxidation are studied with thermogravimetric analysis and gas emission analysis. The diesel soot is simulated by Printex U (PU) particles, and the catalysts include SnO 2 , ZrO 2 , TiO 2 , CeO 2 and Pt/Al 2 O 3 nanoparticles. Compared with other catalysts, the best catalytic effect on soot oxidation is achieved when SnO 2 catalyst is mixed with PU/ZnO at 1:1:1 mass ratio in tight contact method. The S and R w indexes reach the largest values of 9.33 × 10 –8 % 2 min −2 ℃ −3 and 38.64 × 10 5 , and the CO 2 amount reaches the maximum value at 3462 ppm, which is correspondingly with the XRD and XPS spectrum results of PU/ZnO/SnO 2 with ZnO–SnO 2 heterojunction structure having more adsorbed oxygen. The excessive catalyst is negative to the heat and oxygen transfer among the nanoparticles. When the mass ratio of PU/ZnO/SnO 2 is 1:1:1, the soot combustion presents the comparatively superior state. The results of this study innovate the soot oxidation influenced by catalyst and ash, which benefits the optimization of passive regeneration strategy in DPF application.
研究领域:
环境科学
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材料科学
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催化化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2017
·
IF 5.951
Qingyong Tian,Weijing Yao,Wei Wu,Jun Liu,Zhaohui Wu,Li Liu,Zhigao Dai,Changzhong Jiang
Efficiently reclaiming the utilization of solar light in a photocatalysis system remains very challenging. By integrating full advantage of upconversion material, plasmonic metals, and narrow bandgap semiconductors, β-NaYF4:18%Yb3+ and 2%Tm3+@SnO2@Ag nanoparticles (denoted as NaYF4@SnO2@Ag NPs) are designed and successfully synthesized as a wide-spectral (UV–vis-NIR) responsive upconversion and plasmonic-enhanced photocatalyst. The as-obtained NaYF4@SnO2@Ag NPs present broadband optical absorption dimension, excellent photocatalytic efficiency, and good stability for the degradation of organic dyes. The enhanced photocatalytic performance of NaYF4@SnO2@Ag NPs can be attributed to the synergistic effects of the components composed in this core/shell architecture that result in higher photocarriers yield and favor the efficient transfer of photocarriers and energy. This work gives insight to guidance of fabricating efficient, multicomponent upconversion catalysts and proposes a potential in the field of high-efficiency environmental and energy-related applications.
研究领域:
材料科学
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环境科学
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纳米技术
✓ 已验证
DOI
高影响因子
DIAMOND AND RELATED MATERIALS
·
2023
·
IF 4.1
Ce Liang,Jian Guo,Liufei Yue,Mingyang Wang,Jicai Liang,Xiaofeng Wang,Yi Li,Kaifeng Yu
SnO 2 has a high specific capacity, low price, and a wide range of sources, but the anode material made from SnO 2 is extremely unstable due to volume expansion. In this work, SnO 2 nanoparticles were prepared using Sn-MOF as the precursor and compounded with sunflower seed shell porous carbon (SSSC) in a solvothermal manner to obtain a high-performance lithium-ion battery anode. The size of SnO 2 nanoparticles prepared using Sn-MOF as the precursor is uniform, only 10–20 nm, which can fully alleviate the volume expansion of SnO 2 . On this basis, MOF-SnO 2 is anchored onto the porous carbon of the sunflower seed shell, which can provide more lithium insertion sites and further inhibit the volume expansion of SnO 2 . The composite anode in this article has a stable specific capacity of 1050.8 mAh g −1 after 100 cycles at a magnification of 0.2C and a stable specific capacity of 512.9 mAh g −1 after 100 cycles at a magnification of 2C.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Linghong Xue,Fan Zhang,Jiale Dang,Yu Zhang,Xu Li,Tong Liu,Qingji Wang
The room temperature gas sensor has attracted sufficient attention due to the fact that low-power products are more suitable for practical environments. However, developing gas sensors with low detection limits remains challenging. In this paper, a room-temperature sensor was prepared by in situ growth of WO 3 nanospheres on SnO 2 inverse opal (IO) by aerosol assisted chemical vapor deposition (AACVD) method, detecting ppb level of ammonia. The WO 3 nanospheres are directly fabricated on IO, and their elemental composition, morphology and structure is characterized using XRD, SEM and TEM. The results show that WO 3 nanospheres have been prepared on SnO 2 IO successfully. It showes that the WO 3 /SnO 2 (WS) type sensor has a detection limit as low as 1 ppb at room temperature from the gas sensitivity data. In addition, the sensor's response value to 100 ppm NH 3 reached 65 %. Its excellent sensing performance depends on the distinctive morphology features of WO 3 and SnO 2 . The hierarchical characteristic effectively enhances the sensing performance for NH 3 . Consequently, this presents a feasible solution for fabricating the room temperature NH 3 sensor.
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
Small
·
2024
·
IF 13
Jinnong Wang,Ze Wang,Jie He,Lin Han,Xin Li,Keyi Han,Tianen Chen,Qianyu Zhou,Luobai Yang,Dongye Zhao,Yuanhao Wang,Shifeng Wang
Photo-assisted electrocatalysis has arisen as a promising approach for hydrogen generation by incorporating photocatalysts into electrocatalysts. 2D SnS 2 is a photocatalyst that absorbs visible light. However, the rapid recombination of photo-generated electron-hole pairs significantly reduces the overall photocatalytic efficiency of SnS 2 , limiting its practical application. Thus, this study prepares an in situ heterojunction SnS 2 @SnO 2 using a one-step hydrothermal method. The degradation efficiency of methyl orange (MO) using SnS 2 @SnO 2 is measured, achieving a degradation rate of 92.75% within 1 h, which is 1.9 times higher than that of pure SnS 2 . Additionally, FeNiS/SnS 2 @SnO 2 is synthesized and exhibited significant improvements in the photo-assisted oxygen evolution reaction (OER). It achieves an overpotential of 260 mV and a Tafel slope of 65.1 mV dec −1 at 10 mA cm −2 , showing reductions of 11.8% and 31.8%, respectively, compared to FeNiS alone. These enhancements highlight the strong photo-response capability of SnS 2 @SnO 2 . Under the internal electric field of SnS 2 @SnO 2 , the photogenerated electrons in the conduction band of SnS 2 quickly move toward SnO 2 , facilitating efficient photocatalytic reactions. FeNiS, with a lower Fermi energy level (E F ), facilitates electron transfer from SnS 2 @SnO 2 and enhances OER performance by efficiently participating in the reaction. This study paves a new path for 2D photocatalyst materials.
研究领域:
材料科学
·
光电催化
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NANOTECHNOLOGY
·
2021
·Vol. 32
·期 47
·475506
·
IF 3.874
Jiawen Shi,Sen Liu,Peng Zhang,Ning Sui,Shuang Cao,Tingting Zhou,Tong Zhang
Methane (CH4) gas sensors play an important role in industrial safety and detection of indoor gas quality. In general, metal oxide semiconductor sensing materials with nano-structure have high responses to the target gas. However, the sensor resistance is usually very high. Considering the practical application, it is vital to reduce base resistance and improve sensitivity for gas sensors. Herein, Pd-doped SnO2 nanoparticles were prepared as the basis material by a simple sol-gel method. In order to adjust the resistance, the pentavalent metal element (Sb) was introduced via a simple doping route. As CH4 sensing layers, the prepared SnO2-sensors doped with Pd and Sb exhibited the most obvious resistance reduction effect. Meantime, excellent sensing performances including high response, fast response/recovery time, excellent reproducibility and great stability were also obtained. In-depth research has shown that the ability to reduce resistance depends on the effective internal doping of cation with high valence. The enhanced sensing capability can be attributed to the 'synergistic effects' including catalytic effects of novel metals, increased oxygen vacancies and decreased band gap energy. This work can provide a new opportunity to design metal oxide sensing materials with low resistance and high sensitivity.
研究领域:
材料科学
·
传感器技术
·
纳米科技
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）