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
✓ 已验证
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
✓ 已验证
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
✓ 已验证
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
·
电化学
·
纳米科技
·
能源存储
·
计算材料学
✓ 已验证
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.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Shiguo Yan,Zhihan Liu,Yurong Fu,Qin Luo,Yiyang Wang,Xiaodi Tang,Yong Yi,Cuilan Tang
Direct ethanol fuel cells (DEFCs) are regarded as a highly promising sustainable energy conversion device due to their high energy density, no pollution, and convenient storage and transportation. However, the ethanol oxidation reaction (EOR) has problems such as slow kinetics and low selectivity of the C1 pathway. In this study, by constructing the PdAu–SnO 2 interface and regulating the electronic structure of Pd, the selectivity of the C1 pathway in the ethanol oxidation reaction was improved. The PdAu–SnO 2 /CA (Carbon aerogel is abbreviated as CA) catalyst exhibited excellent EOR performance in an alkaline medium, with a mass activity of 7.1 ± 0.1 A·mg −1 Pd and a mass activity of 14.2 ± 0.2 A·mg −1 Pd under visible light irradiation, which is 12.9 times that of the commercial Pd/C. In situ ATR-SEIRA and Density functional theory (DFT) indicated that the synergistic effect of the PdAu–SnO 2 interface significantly promoted the breaking of C C bonds in ethanol and accelerated the oxidation of toxic intermediates, thereby inhibiting the poisoning and deactivation of the catalyst. This work provides a highly selective and highly active catalyst for the ethanol oxidation reaction, which is conducive to promoting the development of clean and sustainable energy technologies. Download: Download high-res image (124KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2026
·
IF 8.3
Haoyang Ge,Tianle Wang,Ming-Yu Li,Songhua Xie,Haifei Lu,Xiaoyan Wen,Cong Wang,Sisi Liu
Hydrogen plays a vital role in zero-carbon energy systems and lithium-ion battery health monitoring, while its safe utilization faces a critical challenge in achieving high-accuracy room-temperature detection with fast response speed. Herein, Ti 3 C 2 T x ternary composites decorated with Pd and SnO 2 nanoparticles (MPS) are successfully synthesized via a facile approach at 80 ˚C with a high hydrogen sensitivity based on a synergetic effect. Within the MPS composites, the dissociation energy barrier for hydrogen molecules can be drastically reduced with the existence of Pd nanoparticles, boosting the ionization of active hydrogen atoms at the heterointerface between SnO 2 and MXene via the hydrogen spillover effect. The isomorphous substitution of Ti 3+ by Sn 4+ generates abundant holes at the heterointerface, and the built-in electric field formed at the heterointerface subsequently promotes the recombination of these holes with the electrons generated during hydrogen ionization. Benefitting from the series of reaction, the optimal response of 73.5% is obtained with fast response/recovery time of 47 s/36 s upon exposure to 200 ppm H 2 at room-temperature. In addition, an outstanding linearity (R 2 =0.9908) is achieved within a range between 5 and 200 ppm, resulting in a superior LOD of 1.96 ppm. The MPS composite gas sensor simultaneously exhibits exceptional selectivity and cycling stability, shedding light on the new perspective of high-performance room-temperature gas sensing.
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2026
·
IF 8.3
Liyong Du,Jiayi Li,Enhui Liu,Shuli Wei,Qing Lu,Guoli Yang
In this work, hollow double-shelled ZnSnO 3 /SnO 2 heterojunctions are fabricated via a straightforward self-sacrificing template route. The crystal structure, microstructure, elemental composition, surface chemical states, optical properties and oxygen vacancies of the as-prepared materials are systematically characterized. Gas sensing tests reveal that the ZnSnO 3 /SnO 2 -2 sample exhibits a high response of 104.5 toward 100 ppm triethylamine (TEA) with a rapid response speed of 1 s at a relatively low operating temperature of 160°C, along with good selectivity, repeatability and long-term stability. The enhanced gas sensing mechanism is elucidated from the perspectives of electronic structure and surface reaction by combining density functional theory (DFT) calculations and in-situ Fourier transform infrared (FTIR) spectroscopy. Furthermore, preliminary monitoring of pork freshness during storage using the ZnSnO 3 /SnO 2 -2 sample demonstrates its potential in practical applications. This study provides a theoretical foundation and experimental support for the design of high-performance and low-power TEA gas sensors.
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2015
·Vol. 12
·期 7
·853-859
·
IF 8.368
Lu Xia,Suqing Wang,Guoxue Liu,Liangxing Ding,Dongdong Li,Haihui Wang,Shizhang Qiao
Graphical A freestanding SnO 2 @N-CNF film prepared by electrospinning exhibits excellent flexibility and a high surface area of 506 m 2 g −1 . When used as an anode for lithium-ion batteries, a high reversible capacity of 754 mAh g −1 is maintained after the 300 th cycle at 1 A g −1 . Even when the current density increases to 5 A g −1 , the SnO 2 @N-CNF still delivers 245.9 mAh g −1 .
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2022
·
IF 5.518
Shuai Liu,Wenjie Tao,Yang Yu,Sandile Fakudze,Chen Wang,Jiaxin Wang,Jiangang Han,Jianqiang Chen
Aiming at enhancing cyclic stability and fast charging performance of lithium-ion batteries (LIBs), a sandwich structured composite with a buffer layer of porous silicon (Si) between the carbon layer and SnO 2 layer (C/Si@SnO 2 ) was developed by using ball milling. The results showed that the Si layer with plenty of mesoporous and cracks was coated successfully and the introduction of Si increased the disordered structure of SnO 2 , including the expansion of interlayer spacing, the emergence of Sn and SiOx indicated the reaction between Si and SnO 2 occurred during the ball milling process, while the generation of Si-O-Sn and Si-O-C bonds formed by Si integration connected the three components with intimate interfaces. Used as an anode for LIBs, the C/Si@SnO 2 electrode performed a favorable discharge capacity (919.21 mAh·g −1 at 0.1 A·g −1 ), the ultra-long cyclability after 1000 and 2000 cycles, impressive rate performance (269.87 mAh·g −1 at 5 A·g −1 ), and fast charging capability accompanying discharge capacity of 805.57 mAh·g −1 at 0.2 A·g −1 and charge capacity of 400.55 mAh·g −1 at 2 A·g −1 . In addition, the electrochemical impedance spectroscopy analysis showed that the graphitic carbon layer and porous Si layer improved the rapid Li + diffusion and transportation, which was beneficial to fast charging in LIBs. Our work provided a facile and green ball milling method to construct porous sandwich structured metal oxide/C composites with the introduction of Si, which can effectively increase the disordered structure of composite and also open up a new scheme of Si materials as an anode in the field of fast charging for LIBs.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2020
·
IF 8.247
JingYan Liu,Yan Guo,MengHua Zhu,YuanChao Li,Xin Li
In inverted planar perovskite solar cells (PSCs), fullerene (C 60 ) and its derivatives are widely utilized as electron-transport layer (ETL) materials, however, possess some drawbacks such as low electron mobility , interfacial degradation, and relatively inferior stability. In this work, we develop a facile thermal annealing-free hydrothermal route to synthesize high-crystalline SnO 2 nanocrystals through controlling the crystallization process with HClO 4 . An interlayer of SnO 2 nanocrystals is inserted between C 60 ETL and Ag electrode. The SnO 2 interlayer can not only serve as an ETL to help improve electron extraction and transport but also act as a passivation/barrier layer to prevent oxygen and moisture ingress and ion migration. Based on the p-i-n structure of fluorine-doped tin oxide (FTO)/NiO x /MAPbI 3 /C 60 /SnO 2 /Ag, the power conversion efficiency (PCE) of the champion device is up to 16.36% with almost negligible hysteresis . The unencapsulated inverted PSCs retain more than 80% of its initial PCE value after storage in atmosphere for 90 days (>2100 h), and degrade only about 20% its initial efficiency after 41 h under heating at 85 °C. More important, all the preparation processes are performed under ambient conditions. Our work provides a viable strategy for assembling highly efficient and stable inverted PSCs in the air.
研究领域:
材料科学
·
太阳能
·
纳米技术
·
电化学
✓ 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）