PROGRESS IN ORGANIC COATINGS
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2026
·
IF 7.9
Yingkang Zhang,Zuozhu Yin,Yingping Yang,Yongcun Ma,Zhen Hong,Chan Xie,Zhiyang Jiang,Mingshan Xue
The development of advanced thermal management materials with combined high thermal conductivity and effective infrared stealth remains a critical challenge for aerospace avionics. We fabricate a superhydrophobic SnO₂/carbon nanotube (CNTs) composite coating on aluminum substrates via a facile spraying method. The optimized composite exhibits a water contact angle of 159.4°, attributed to the hierarchical micro−/nanostructure formed by SnO₂ particles and CNT networks. The interconnected CNT network establishes efficient in-plane thermal pathways within the coating. The overall effective thermal conductivity has increased, mainly due to improvements in carbon nanotube permeation networks and interfacial heat transfer. Spectral emissivity measurements in the 8–14 μm atmospheric window show that the coating reduces the average emissivity from 0.85 to 0.51, corresponding to a theoretical reduction in radiative signal of approximately 40%, thereby significantly lowering the infrared signature. The coating also demonstrates excellent environmental durability, retaining hydrophobicity under mechanical abrasion, extreme pH, and temperatures up to 140 °C. This multifunctional coating shows promising potential for thermal management, infrared stealth, and surface protection in harsh operational environments.
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高影响因子
NANOTECHNOLOGY
·
2021
·Vol. 32
·期 15
·155505
·
IF 3.874
Shengliang Zheng,Jianyong Sun,Juanyuan Hao,Quan Sun,Peng Wan,Yue Li,Xin Zhou,Ye Yuan,Xu Zhang,You Wang
Ever-increasing concerns over air quality and the newly emerged internet of things (IoT) for future environmental monitoring are stimulating the development of ultrasensitive room-temperature gas sensors, especially for nitrogen dioxide (NO2), one of the most harmful air pollution species released round-the-clock from power plants and vehicle exhausts. Herein, tin dioxide nanorods/ethylenediamine-modified reduced graphene oxide (SnO2/EDA-rGO) heterojunctions with selective adsorption and electronic structure modulation were engineered for highly sensitive and selective detection of NO2 at room temperature. The modified EDA groups not only enable selective adsorption to significantly enrich NO2 molecules around the interface but also realize a favorable modulation of SnO2/EDA-rGO electronic structure by increasing the Fermi level of rGO, through which the sensing performance of NO2 is synergistically enhanced. The response of the SnO2/EDA-rGO sensor toward 1 ppm NO2 reaches 282%, which exceeds the corresponding SnO2/rGO sensor by a factor of 2.8. It also exhibits a low detection limit down to 100 ppb, enhanced selectivity, and rapid response/recovery kinetics. This approach to designing a novel heterojunction with significantly enhanced chemical and electric effects may shed light on the future engineering of gas-sensing materials.
研究领域:
材料科学
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环境科学
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化学传感器
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高影响因子
International Journal of Electrochemical Science
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2023
·Vol. 11
·期 7
·5395-5402
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IF 1.5
Xin Zhao,Yun Deng,Jiang Cheng
High-quality SnO 2 :F films with an area of 15×15 cm 2 were prepared from stannic chloride (SnCl 4 ) solution via a house-made ultrasonic spray pyrolysis instrument. The focus of this investigation was on the volatilization of solution and doping process of fluorine, the main influencing factors on F doping content, and the effects of F doping content on the crystal structure, surface morphology, electrical, and optical properties. The results indicated that the crystallinity was enhanced with increasing doping concentration; the films exhibited (101) oriented growth and the resistivity decreased at first and then increased. During the preparation route, the droplet momentum and the temperature field above the hot plate demonstrate the most dominate influence on the film’s properties. The spray droplet gradually hydrolyzed during the moving process from sprinkler to substrate while the F doping content decreased with the increasing distance between the sprinkler and the substrate. By controlling the doping of F, high-quality and large area SnO 2 :F films with a resistivity of 1.2×10 -3 Ω⋅cm and a visible light transmittance of 82% were prepared, demonstrating a promising application for organic solar cells and low emissivity glass.
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2018
·Vol. 53
·期 16
·11648-11658
·
IF 2.993
Tan Sicong,Li Jiajia,Zhou Lijie,Chen Peng,Xu Deliang,Xu Zhaoyang
Flexible electrode film was fabricated using cellulose nanofibers aerogel as a framework dispersed with reduced graphene decorated with SnO 2 for supercapacitors. The electrode film was synthesized through a simple hydrothermal reduction method followed by a free-drying process. Scanning electron microscope showed that cellulose nanofibers were uniformly wrapped around by reduced graphene, and a high specific area capacitance of 4.314 F cm −2 at 1 mA/cm 2 in 1 M H 2 SO 4 was obtained due to the 3D porous network of the aerogel. Furthermore, the aerogel electrodes showed extraordinary cycling stability for 2000 cycles with retention up to 60.47% at 10 mA cm −2 . In view of its great electrical performance, easy synthesis, low cost, and environmentally friendly nature, the CNF/RGO/SnO 2 aerogel may find promising application for flexible supercapacitors.
研究领域:
材料科学
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能源技术
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高影响因子
Nanoscale
·
2022
·Vol. 15
·期 4
·1669-1675
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IF 8.307
Xiao Liu,Shuai Zhang,Peng Zhang,Zongmin Zheng,Feng Bai,Qi Li
Tin dioxide (SnO2) with a high theoretical capacity of 1494 mA h g−1 has great potential to break through the capacity limitation of the conventional graphite anode (372 mA h g−1) in lithium-ion batteries. However, its practical application still faces several obstacles such as high volumetric expansion and poor electrical conductivity. To solve these problems, innovative design and synthesis of SnO2-based nanocomposite structures are necessary. Herein, we demonstrate an integrated design of a hierarchical pitaya-like P-SnO2/C@NC core–shell nanostructure which includes the core of SnO2 nanoparticles (∼4–12 nm) uniformly embedded in the porous carbon sphere and the shell of a continuous nitrogen-doped carbon (NC) layer. Specifically, during repetitive lithiation and delithiation processes, the ultrasmall SnO2 nanoparticles reduce the internal stress greatly, the porous carbon matrix provides buffer space for a large volume change, and the N-doped carbon shell further guarantees the whole structure unit sufficient electrical conductivity and structural stability. Consequently, the resultant battery exhibits a reversible capacity of 936.8 mA h g−1 after 100 cycles at 100 mA g−1 and even an average capacity of 460.0 mA h g−1 at a high current density of 3.2 A g−1. The excellent electrochemical performance of pitaya-like SnO2/C@NC proves the efficacy of this structure design and thus provides significant reference for the construction of other electrode materials in rechargeable alkali metal ion batteries.
研究领域:
材料科学
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能源存储
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DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Congcong Liu,Min Guo,Haijun Su,Peng Zhai,Keyu Xie,Zhike Liu,Jun Zhang,Lin Liu,Hengzhi Fu
The defects at the interface of SnO 2 electron transport layers (ETLs) /perovskite layer hinder extraction and transfer of charge, which restrict the further improvement of the photoelectric conversion efficiency (PCE) of SnO 2 -based perovskite solar cells (PSCs). Herein, an effective bifunctional anchoring strategy is developed to passivate SnO 2 /perovskite interface defects by adequate chelate sites in polydentate phytic acid dipotassium (PAD) to anchor SnO 2 colloids. It is confirmed that polydentate PAD anchoring can form new Sn-O-P bonds with uncoordinated Sn 2+ , which can efficiently passivate the SnO 2 surface defects and alleviate the interfacial charge recombination between SnO 2 and perovskite layer. The reduction of SnO 2 surface defects enhances the electron transport efficiency and increases the conductivity of the PAD-SnO 2 ETLs to 2.1 times that of SnO 2 ETLs. Meanwhile, the anchoring group potassium ions (K + ) in PAD can promote the in-plane growth of perovskite grains and increase the average grain size of perovskite from 560 nm to 850 nm. As a consequence, the PCE of the PAD-SnO 2 -based PSCs increased sharply to 21.61%, which is 10.7% higher than that of the PSCs made with SnO 2 ETLs (19.52%). The unencapsulated PSCs deposited on PAD-SnO 2 ETLs can remain 99.5% of their initial efficiency after 60 days under 25–30% humidity.
研究领域:
材料科学
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光伏技术
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表面化学
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2015
·
IF 4.097
Ziying Wang,Yong Zhang,Sen Liu,Tong Zhang
A novel NO 2 gas sensor has been constructed using Ag nanoparticles-SnO 2 nanoparticles-reduced graphene oxide (AgNPs-SnO 2 -rGO) hybrids as sensing materials. AgNPs-SnO 2 -rGO hybrids were prepared by a two-step wet-chemical method. Firstly, SnO 2 -rGO hybrids were synthesized by hydrothermal treatment of aqueous dispersion of GO in the presence of SnCl 4 . Then, AgNPs-SnO 2 -rGO hybrids were obtained by in situ reduction of AgNO 3 on the surface of SnO 2 -rGO hybrids. The combined characterizations of UV–vis spectroscopy, X-ray diffraction (XRD), energy-dispersive X-ray spectrometer (EDX), elemental mapping, X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM) and Raman spectra were used to investigate the structure of AgNPs-SnO 2 -rGO hybrids. Most importantly, the sensor based on AgNPs-SnO 2 -rGO hybrids exhibits good sensing performance for NO 2 sensing operating at room temperature . For example, the response time and recovery time of the sensor based on AgNPs-SnO 2 -rGO hybrids for 5 ppm NO 2 are 49 s and 339 s, which are much shorter than that of SnO 2 -rGO hybrids (415 s and 740 s), indicating that the sensing performances for NO 2 sensing at room temperature have been tremendously enhanced by introduction of AgNPs into SnO 2 -rGO hybrids.
研究领域:
材料科学
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环境科学
·
纳米技术
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2014
·
IF 3.84
Yongling Du,Xin Gao,Xiaoliang Ye,Zhixiang Zheng,Qingliang Feng,Chunming Wang,Kaifeng Wu
The Au–SnO 2 /graphenes (GNs)-single-walled carbon nanotubes (SWCNTs) nanocomposite has been prepared through green chemistry methods. This composite material was deliberately designed to combine the virtues of metal, semiconductor, and carbon materials. Its successful formation has been confirmed by a series of characterizations, such as transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS). A new electrode based on this nanocomposite was fabricated and used as a voltammetric sensor for detection of 2-tert-butylhydroquinone (TBHQ) through cyclic voltammetry (CV) and differential pulse voltammetry (DPV) methods. Under optimized conditions, this electrode presents a linear response in a broad concentration range of 5.0 × 10 −8 to 2.3 × 10 −4 M of TBHQ, with its detection limit reaching 5.8 × 10 −8 M. This simultaneous broad-range and ultrasensitive detecting capability for TBHQ is, to our best knowledge, better than all the previously reported modified electrodes. The excellent performance is attributed to the synergistic effects among the constituent nanomaterials (GNs, SWCNTs, SnO 2 , and Au) and the unique nano-architecture of this nanocomposite.
研究领域:
材料科学
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食品科学
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电化学
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高影响因子
ANALYTICA CHIMICA ACTA
·
2018
·
IF 5.123
Yamin Fu,Di Huang,Congming Li,Lina Zou,Baoxian Ye
This paper described a novel, facile and nonenzymatic electrochemical biosensor to detect hydrogen peroxide (H 2 O 2 ). The sensor was fabricated based on Pd-Pt nanocages and SnO 2 /graphene nanosheets modified electrode (PdPt [email protected] /GCE). The electrochemical behavior of PdPt [email protected] /GCE exhibited excellent catalytic activity toward H 2 O 2 with fast response, high selectivity , superior sensitivity, low detection limit of 0.3 μM and large linear range from 1 μM to 300 μM. Under these obvious advantages, the constructed biosensor provided to be reliable for determination of H 2 O 2 secreted from human cervical cancer cells (Hela cells). Hence, the proposed biosensor is a promising candidate for detection of H 2 O 2 in situ released from living cells in clinical diagnostics.
研究领域:
材料科学
·
电化学
·
生物传感器
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癌症诊断
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DOI
PubMed
高影响因子
Materials
·
2018
·Vol. 11
·期 11
·2084
·
IF 2.467
Xiuru Xu,Wei Wang,Bolun Sun,Xue Zhang,Rui Zhao,Ce Wang
In this work poly(3,4-ethylenedioxythiophene) (PEDOT) coated SnO2-Fe2O3continuous nanotubes with a uniform core–shell structure have been demonstrated for rapid sensitive detection of iodide ions. The SnO2-Fe2O3nanotubes were firstly fabricated via an electrospinning technique and following calcination process. An in situ polymerization approach was then performed to coat a uniform PEDOT shell on the surface of as-prepared SnO2-Fe2O3nanotubes by vapor phase polymerization, using Fe2O3on the surface of nanotubes as an oxidant in an acidic condition. The resultant PEDOT@SnO2-Fe2O3core-shell nanotubes exhibit a fast response time (~4 s) toward iodide ion detection and a linear current response ranging from 10 to 100 μM, with a detection limit of 1.5 μM and sensitivity of 70 μA/mM/cm2. The facile fabrication process and high sensing performance of this study can promote a wide range of potential applications in human health monitoring and biosensing systems.Keywords:in situ vapor polymerization;electrospun nanotubes;ion-selective electrodes;iodide ion detection
研究领域:
材料科学
·
生物传感
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DOI
PubMed
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2018
·
IF 8.173
Xuan Li,Li Liu,Xue Dong,Guanhui Zhao,Yueyuan Li,Juncong Miao,Jinglong Fang,Min Cui,Qin Wei,Wei Cao
A sensitive dual mode competitive electrochemical immunosensor for the detection of B-type natriuretic peptide (BNP) was successfully fabricated, which based on differential pulse voltammetry (DPV) and amperometric i-t curve response modes. Polyaniline (PAN) and tin dioxide (SnO 2 ) were loaded on graphene sheets (GS), which could effectively promote the electron transfer process, thereby amplifying the current signal and increasing the sensitivity of the immunosensor. To promote biocompatibility, gold nanoparticles (Au) were incorporated on GS/SnO 2 /PAN (GS/SnO 2 /PAN-Au). GS/SnO 2 /PAN-Au complex was gotten to act as the platform which could provide a clearly DPV signals. N-doped carbon nanotubes (N-CNTs) embellished by ZnCo 2 O 4 quantum dots (ZnCo 2 O 4 /N-CNTs) with excellent catalytic properties for the reduction of H 2 O 2 was gotten to act as the label of the antibody-BNP (Ab), providing an obviously current signal through amperometric i-t curve method. A large quantity of BNP could be stable loaded in the modified electrode via GS/SnO 2 /PAN-Au with excellent electrical conductivity and good biocompatibility , which could compete with target-BNP to combine Ab that labelled by ZnCo 2 O 4 /N-CNTs. Under the optimum conditions, the immunosensor exhibited remarkable analytical performance of a linear range from 0.01 pg/mL to 1 ng/mL with a detection limit of 3.4 fg/mL for quantitative detection of BNP (S/N = 3). This method was able to become a universal strategy for other biological detection.
研究领域:
电化学
·
生物化学
·
纳米技术
·
分析化学
·
生物医学工程
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DOI
PubMed
高影响因子
PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION
·
2016
·Vol. 33
·期 4
·212-220
·
IF 4.367
Mei Lei,Wei Wu,Shuanglei Yang,Xingang Zhang,Zhuo Xing,Feng Ren,Xiangheng Xiao,Changzhong Jiang
The reduction of 4-nitrophenol (Nip) into 4-aminophenol (Amp) by NaBH 4 , which is catalyzed by both binary and ternary yolk–shell noble-metal/SnO 2 heterostructures, is reported. The binary heterostructures contain individual Au or Ag nanoparticles (NPs) and the ternary heterostructures contain both Au and Ag NPs. The Au@SnO 2 yolk–shell NPs are synthesized via a silica seeds-mediated hydrothermal method. Subsequently, the Au@SnO 2 @Ag and Au@SnO 2 @Au yolk–shell–shell (YSS) NPs are synthesized, whereby SnO 2 is located between the Au and Ag NPs. The morphology, composition, and optical properties of the as-prepared samples are analyzed. For the binary heterostructures, the rate of the reduction reaction increases with decreasing particle size. The catalytic results demonstrate the synergistic effect of Au and Ag in the ternary metal–semiconductor heterostructures, which is beneficial to the catalytic reduction of Nip into Amp. Both the binary and ternary heterostructures exhibit significantly better catalytic performances than the corresponding bare Au and Ag NPs. It is envisaged that the current synthesized strategy will promote further interest in the field of bimetal NP-based catalysis.
研究领域:
材料科学
·
催化化学
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高影响因子
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