COMPOSITES PART B-ENGINEERING
·
2022
·
IF 11.322
Wei Cai,Zhaoxin Li,Tianyang Cui,Xiaming Feng,Lei Song,Yuan Hu,Xin Wang
Taking into consideration the frigid and thunderstorms, the flame retardancy and de-icing performance are simultaneously desiderated for some open-air key equipment, such as air fuselage and wind turbine blades. Here, inspired by the anti-reflection phenomenon of moth eyes and cicada wings, a multi-functionalized and biomimetic MXene@SnO 2 hierarchical nanostructure is prepared to effectively impart flame retardancy and solar de-icing performance to thermoplastic polyurethane (TPU) resin used widely as the finishing coat of protective materials of open-air equipment. Based on the catalytic effect and barrier function, the addition of hierarchical MXene@SnO 2 nanostructures also effectively decreases the release of heat and toxic smoke from PU resin, as confirmed by reductions of 50.5% and 33.1% in the peak heat release rate and smoke production rate, respectively. Due to the appropriate refractive index , the light reflection phenomenon is effectively suppressed, thus promoting solar absorption (∼90% at 0.4 mm film) and photo-thermal conversion (∼74.2 °C with simulated solar illumination of 1.0 kW/m 2 ) in TPU-MXene@SnO 2 nanocomposites . Within the environment of −20 °C, the surface temperature of TPU-MXene@SnO 2 nanocomposites is still up to 32.7 °C and the surface ice pellet begins to melt at ∼40s, much earlier than 600s of pure TPU resin. In addition, the practical application of functionalized TPU nanocomposites is further improved by the higher mechanical properties , attributed to the strong interfacial interaction . Inspired by moth eyes and cicada wings, flame retardancy and solar de-icing performance are first integrated into polymer materials, thus effectively promoting their application in some extreme environments.
研究领域:
材料科学
·
化学工程
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产品关联
DOI
高影响因子
Journal of Energy Storage
·
2023
·
IF 9.4
Jiaping Tang,Cuiying Dai,Ze Wen,Mei Yang,Hongbin Gao,Weiguo Mao,Zhuo Wang,Junan Pan,Yong Pan
SnO 2 /Gr composite as anode material for lithium-ion batteries was synthesized by an acoustic-chemical method followed by an annealing treatment. The composite exhibits high crystallinity and purity, and the weight ratio of SnO 2 is controllable. Benefit from the compound effect between material components, the SnO 2 /Gr anodes give notable reaction kinetics and cycling stability. The specific capacity of the composite with 27.4 wt% SnO 2 remains 649.9 mA h g −1 after 170 cycles at 200 mA g −1 . The strain field features in the symmetrical SnO 2 /Gr electrodes were in-situ measured during electrochemical cycles by digital image correlation technique . The distribution and variation characterizations of diffusion induced stress in the symmetrical SnO 2 /Gr electrodes were obtained by using mechano-electrochemical coupling constitutive equation. Furthermore, the contributions of the electrochemical and mechanical stress parts to the plane stress in the symmetrical SnO 2 /Gr electrodes also be discussed, respectively. The results and analytical method are critical for further revealing the failure mechanism and optimizing architecture of the SnO 2 /Gr electrodes for lithium-ion batteries.
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DOI
高影响因子
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
·
2023
·
IF 3.3
Xueying Wang,Qian Ma,Qi Zhang,Yi Wang,Lingyu Li,Dongheng Zhao,Zhiqiang Liu
Porous double-channel α-Fe 2 O 3 /SnO 2 heterostructures with tunable surface/interface transport mechanism have been originally fabricated by the electrospinning and subsequent calcination process. With the increase of Sn content from 0 to 5 mol%, the morphology of α-Fe 2 O 3 -based materials changed from porous fibers to ribbons with both sides curled inward. Double-channel structure can provide more active sites and enhanced adsorption capacity with the large specific surface areas of 233.2 m 2 /g. The optimal α-Fe 2 O 3 /SnO 2 composites exhibit the highest response value (32.38) and fastest response/recovery times (33/58 s) than those of other samples to 100 ppm N,N-dimethylformamide (DMF) at 360 °C. Meanwhile, good cycling and long-term stability and high gas selectivity of the composites are conductive to the feasible detection to DMF under high temperature (≥360 °C) condition. The enhanced gas-sensitive properties of α-Fe 2 O 3 /SnO 2 composites at high temperature are closely related to phase composition, unique morphology, efficient n-n heterojunction and accelerated surface/interface charge transfer process. Significantly, the porous double-channel α-Fe 2 O 3 /SnO 2 composite is expected to be a potential candidate for DMF vapor detection in the dye or pesticide industry to prevent DMF explosion under high temperature conditions in the future.
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DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2021
·
IF 7.46
Weijia Li,Lingchu Huang,Tong Wang,Xidong Hao,Bin Wang,Qi Lu,Xishuang Liang,Fengmin Liu,Fangmeng Liu,Chenguang Wang,Geyu Lu
The development of high-performance gas sensors for detecting trace amount of CH 3 OH is an essential and a challenging task for safety using fuel cell vehicles (FCVs). In this work, the metal oxides (SnO 2 , In 2 O 3 , CuO) are employed as the catalyst carrier materials in fuel cell type sensors for the first time to replace traditional carbon, with which the Pt/MO x based fuel cell type sensors are fabricated. Among them, Pt/SnO 2 based sensor displays the lowest detection limit because SnO 2 carrier can not only support Pt particles but also provide an appropriate number of electrons for Pt, which is beneficial to reduce the adsorption strength of the intermediates and then improves the catalytic ability. The detection limit is as low as 0.5 ppm, the lowest of the various types of CH 3 OH sensors that work at room temperature. Moreover, the Pt/SnO 2 based fuel cell type sensor displays the characters of high selectivity, good repeatability and robust moisture resistance. To the best of our knowledge, this is the first report employing MO x as the catalyst carrier materials in fuel cell type sensors.
研究领域:
材料科学
·
传感器技术
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产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2023
·Vol. 11
·期 26
·14333-14344
·
IF 11.9
Yuejuan Zhang,Penghui Chen,Mingming Li,Shaoqing Li,Ying Yue,Yanchun Wang,Sishen Xie,Weiya Zhou
Aqueous Zn-ion batteries (AZIBs) are attractive for next-generation renewable and secure energy storage systems due to their high safety and low cost. However, dendrite growth and side reactions of Zn metal anodes severely limit their practical applications. Moreover, polarization is an important but easily overlooked factor hampering the development of AZIBs. Herein, a zincophilic, hydrophilic, and thin (∼100 nm) SnO2 protective layer is reported to remodel the Zn anode/electrolyte interface via a simple spin-coating approach. The SnO2 layer effectively inhibits the growth of the dendrites, which prolongs the lifetime of Zn anodes to 3900 h. It also alleviates the side reactions and endows Zn‖Cu cells with a high Coulombic efficiency of 99.3% over 2000 cycles. Meanwhile, the SnO2 layer presents fast Zn deposition kinetics to ensure reversible Zn anodes at high current/capacity by decreasing electrochemical polarization and concentration polarization. Consequently, SnO2/Zn anodes exhibit a high cumulative capacity of 4.5 A h cm−2 at an ultrahigh current of 30 mA cm−2 with a low overpotential of 90 mV and even 3.2 A h cm−2 at a high capacity of 4 mA h cm−2 and high current of 8 mA cm−2. Prototype SnO2/Zn‖δ-MnO2 full cells also obtain higher capacities and capacity retention (96.9% after 500 cycles at 2C) than bare Zn. This work offers new insights for ensuring the reversibility and durability of Zn anodes with low polarization at high current/capacity and provides a promising way to promote the practical application of AZIBs.
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DOI
高影响因子
CHEMOSPHERE
·
2023
·
IF 8.8
Daying Chen,Lin Zhao,Danning Chen,Pengfei Hou,Jiashu Liu,Chuanbin Wang,Moses Akintayo Aborisade,Meilin Yin,Yongkui Yang
Efficient, stable, and easily producible electrodes are useful for treating dye wastewater through electrochemical oxidation . In this study, an Sb-doped SnO 2 electrode with TiO 2 nanotubes as the middle layer (TiO 2 -NTs/SnO 2 –Sb) was prepared through an optimized electrodeposition process. Analyses of the coating morphology, crystal structure, chemical state, and electrochemical properties revealed that tightly packed TiO 2 clusters provided a larger surface area and more contact points, which is conducive to reinforcing the binding of SnO 2 –Sb coatings. Compared with a Ti/SnO 2 –Sb electrode without a TiO 2 -NT interlayer, the catalytic activity and stability of the TiO 2 -NTs/SnO 2 –Sb electrode significantly improved ( P < 0.05), as reflected by the 21.8% increase in the amaranth dye decolorization efficiency and 200% increase in the service life. The effects of current density, pH, electrolyte concentration, initial amaranth concentration, and the interaction between various combinations of parameters on the electrolysis performance were investigated. Based on response surface optimization, the maximum decolorization efficiency of the amaranth dye could reach 96.2% within 120 min under the following set of optimized parameter values: 50 mg L −1 amaranth concentration, 20 mA cm −2 current density, and 5.0 pH. A potential degradation mechanism of the amaranth dye was proposed based on the experimental results of a quenching test, ultraviolet–visible spectroscopy, and high-performance liquid chromatography-mass spectrometry. This study provides a more sustainable method for fabricating SnO 2 –Sb electrodes with TiO 2 -NT interlayers to treat refractory dye wastewater.
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DOI
PubMed
高影响因子
SENSORS
·
2025
·Vol. 25
·期 9
·2734
·
IF 3.5
Ting Liang,Yelin Qi,Shuya Cao,Rui Yan,Jin Gu,Yadong Liu
A Pt@CeLaCoNiOx/Co@SnO2laminated MOS sensor was prepared using Co@SnO2as the gas-sensitive film material and Pt@CeLaCoNiOx as the catalytic film material. The sensor was verified to exhibit good sensing performances for dimethyl methylphosphonate, a simulant of Sarin, under a temperature modulation, and characteristic peaks appeared in the resistance response curves only for dimethyl methylphosphonate. The Article Swarm Optimization-Backpropagation Neural Network had a good ability to identify the resistance response data of dimethyl methylphosphonate. The identification accuracy increased as the concentration of dimethyl methylphosphonate increased. This scheme can effectively identify whether the test gas contained dimethyl methylphosphonate or not, which provided a reference for achieving the high selectivity of the MOS sensor for Sarin.
研究领域:
化学传感
·
神经网络应用
·
材料科学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
·
2021
·
IF 5.541
Yang Li,Bin Hu,Salman Raza Naqvi,Zhen-xi Zhang,Kai Li,Qiang Lu
5-Hydroxymethylfurfural (5-HMF) is a value-added platform chemical, which can be obtained from pyrolysis of biomass materials, whereas related investigation on its selective production via catalytic fast pyrolysis (CFP) process is still insufficient. In this work, a zirconium-tin mixed metal oxide (ZrO 2 -SnO 2 ) catalyst was developed for the selective production of 5-HMF from the in-situ CFP of cellulose. According to pyrolysis-chromatography/mass spectrometry (Py-GC/MS) tests, the ZrO 2 -SnO 2 catalyst has better performance on the selective preparation of 5-HMF than single nano oxide ZrO 2 , SnO 2 , or their physical mixture. 5-HMF was sensitive to the reaction conditions, and its yield and selectivity always exhibited the tide of first increasing followed by decreasing along with the increase of Zr loading and catalyst-to-cellulose (CA-to-CL) ratio. At the optimum conditions with ZrO 2 -SnO 2 of 15 wt% Zr loading (ZrO 2 -SnO 2 -15), pyrolysis temperature of 350 °C and CA-to-CL ratio of 2:1, the 5-HMF yield was 6.49 wt%, which was 4 times more than that of the non-catalytic process (1.35 wt%). Correspondingly, the selectivity of 5-HMF was up to 23.50 %. The catalyst characterization combined with the pyrolysis texts of several typical saccharides, including cellobiose, maltose, glucose, and mannose indicated that the ZrO 2 -SnO 2 -15 could promote the breakage of glycosidic bonds with the formation of reducing ends and the selective conversion of the reducing end to 5-HMF due to its mild acidity. Overall, the ZrO 2 -SnO 2 is expected a promising catalyst for the CFP of cellulose to prepare 5-HMF.
研究领域:
化学工程
·
催化
·
生物质转化
·
可再生能源
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DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2025
·
IF 8.3
Wenxiang Zhou,Qinming Wang,Jinlin Wan,Xingfu Zhou
The modification of the interface represents a crucial step in the preparation of efficient and stable carbon-based perovskite solar cells(C–PSCs). A multifunctional interfacial material 1-phenylguanidine hydrochloride (PGCl) was introduced between the double electron transport layer of TiO 2 /SnO 2 and perovskite to modify the interface and promote the crystal growth. The Cl - in PGCl can passivate oxygen vacancies and chemically link to ETL through electrostatic coupling , while helping to fix PbI 2 in perovskite. The grain size increase while the surface roughness decreases in the PGCl-modified ETL. The internal electric field attribute to the increase of the open-circuit voltage. The method achieves better energy orientation, fewer interface defects and uniform perovskite crystals, achieving an impressive power conversion efficiency (PCE) of 15.52 %, an open circuit voltage of 0.94 V, and a substantial increase in the fill factor to 77.96 %. The C-PSC based on PGCl modification show 15.4% increase in PCE. More importantly, the initial PCE of the unpackaged device remains at 75.4% after aging for 300 h at 45-50 °C and 60-70% relative humidity . The findings indicate that the incorporation of PGCl represents a promising approach to modifying the perovskite interface and regulating the crystallization of perovskite, with the objective of achieving efficient and stable C–PSCs.
研究领域:
光伏技术
·
材料科学
·
可再生能源
·
半导体器件
·
纳米材料
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2021
·Vol. 47
·期 16
·22776-22785
·
IF 4.527
Kaidan Wu,Yefeng Feng,Jin Ke,Bingwen Yang,Zhiling Guo,Deping Xiong,Miao He
Graphite nanosheets coated by LiF/SnO 2 composites are designed to obtain a lithium ion anode material with excellent performance. LiF nanoparticles play a significant role in improving the electrochemical performance by inhibiting electrolyte decomposition and providing excess Li sources during cycling. The obtained LiF@SnO 2 @C electrode shows an outstanding capacity of 951.9 mAhg −1 at 0.2 Ag -1 after 370 cycles and excellent long cycling performance of 650.0 mAhg −1 at 1.0 Ag -1 after 930 cycles. First-principles calculations demonstrate that F-doped SnO 2 (−2211.8 eV) has a lower free energy compared to SnO 2 (−1937.4 eV), resulting in a robust composite architecture that gives rise to high cycling stability.
研究领域:
材料科学
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电化学
·
纳米科技
·
能源存储
·
计算材料学
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DOI
高影响因子
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
·
2022
·
IF 4.383
Jinyi Zhang,Jing Zuo,Shaonan Xu,Ankun Ju,Wenhua Yuan,Jiupeng Zhang,Cundi Wei
Conductive powders comprised of coal gasification fine slag porous microbeads/antimony-doped tin oxide nanoparticles (Sb–SnO 2 /CM, ATCM) have been prepared via acid leaching and coating. The lowest powder volume resistivity of 2.6 × 10 3 Ω cm was obtained upon leaching in 20% HCl and coating with a 30 wt% solution of Sb–SnO 2 (pH = 1, Sn/Sb = 6:1). Subsequently, we prepared a 20 wt% ATCM/polypropylene (PP) composite with a volume resistivity of 4.93 × 10 9 Ω cm, tensile strength of 29.03 MPa, and thermal conductivity of 0.137 W/(m·K), which reached 0.187 W/(m·K) at a 70 wt% loading. When compared with several commercial conductive fillers , such as carbon black, graphene, Sb–SnO 2 , and Sb–SnO 2 @TiO 2 , 20 wt% ATCM/PP has been proven superior or comparable to most of its counterparts in terms of the improved antistatic properties, enhanced thermal conductivity (only lower than Sb–SnO 2 @TiO 2 ), and mechanical strength (equal to Sb–SnO 2 ). These good performances were found to be derived from the unique ATCM structure with Sb–SnO 2 nanoparticles deposited onto the mesopores and surface of CM. This structure prevents the agglomeration of Sb–SnO 2 and provides abundant conductive networks. ATCM also shows a decorative light brown color and low cost (15 USD/kg), which are favorable for industrial production. Our results lay a theoretical foundation for the future applications of ATCM.
研究领域:
材料科学
·
高分子物理
·
功能复合材料
·
纳米材料
·
能源材料
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Qingsheng Shi,Ziyi Guo,Yabo Wei,Chen Chen,Zhihua Zhao
The safety issues arising from electrolyte leakage in lithium-ion batteries are becoming increasingly prominent, rapid detection of trace volatile organic solvents (ethyl methyl carbonate, EMC) is key to early warning. In this study, monodisperse palladium-rhodium (PdRh) alloy nanoparticles were prepared hydrothermally and anchored to the exterior of SnO 2 nanostructures. An impregnation approach yielded a series of PdRh–SnO 2 gas-sensing materials with varying mass fractions. Gas-sensing test results indicate that at 260 °C, the 0.7 wt% PdRh-SnO 2 sensor responds with 87.4–100 ppm EMC. Compared to interfering gases, this sensor demonstrates a high selectivity towards ethyl methyl carbonate, with response/recovery times of 21 s/16 s. These excellent sensing properties arise from the introduction of bimetallic nanoparticles, which significantly refines the surface electronic landscape and active-site population, while the formation of an interfacial Schottky barrier effectively amplifies the gas response signal. Furthermore, through simulation experiments based on an STM-32 microcontroller platform, the sensor exhibits outstanding practical application performance. This study introduces an effective and dependable route to the early identification of electrolyte leakage.
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DOI
高影响因子
危险品化学品经营许可证（带存储）