RSC Advances
·
2015
·Vol. 5
·期 90
·74126-74131
·
IF 3.84
Jun Zhu,Xiufang Xu,Jinglei Liu,Yiqun Zheng,Shifeng Hou
We report a facile method for the synthesis of oleylamine-capped silver (Ag) nanowires in high purity. For the first time, Ag nanowires could be produced in high purity via a simple one-pot approach in a hydrophobic phase. The success of this synthesis relies on the use of Cu2+ to mediate the reduction of silver bromide (AgBr) by oleylamine at an elevated temperature, which promoted the high-yield formation of Ag products with a wire-like shape. These Ag nanowires were washed and deposited on PET films to form a transparent conductive electrode (TCE), which showed a sheet resistance of 34.0 Ω sq−1 and an optical transmittance of 70–80% at visible wavelengths. In addition to TCEs, these nanowires could also find important applications in the fields of conductive ink, and wearable electronics, among others.
研究领域:
材料科学
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
SENSORS
·
2019
·Vol. 19
·期 11
·2581
·
IF 3.031
Wei Shan,Zhengqian Fu,Mingsheng Ma,Zhifu Liu,Zhenggang Xue,Jiaqiang Xu,Faqiang Zhang,Yongxiang Li
Tin(II) monosulfide (SnS) nanosheets were synthesized using SnCl4•5H2O and S powders as raw materials in the presence of H2O via a facile chemical bath method. Orthorhombic phase SnS nanosheets with a thickness of ~100 nm and lateral dimensions of 2~10 μm were obtained by controlling the synthesis parameters. The formation of a SnO2intermediate is key to the valence reduction of Sn ions (from IV to II) and the formation of SnS. The gas sensors fabricated from SnS nanosheets exhibited an excellent response of 14.86 to 100 ppm ethanol vapor when operating at 160 °C, as well as fast response and recovery times of 23 s and 26 s, respectively. The sensors showed excellent selectivity for the detection of ethanol over acetone, methanol, and ammonia gases, which indicates the SnS nanosheets are promising for high-performance ethanol gas sensing applications.Keywords:gas sensors;SnS nanosheets;chemical bath synthesis;oleylamine;ethanol sensing
研究领域:
材料科学
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传感器技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MATERIALS RESEARCH BULLETIN
·
2012
·
IF 2.105
Jing Liu,Lu Wang,Jing Wang,Lantong Zhang
A new solvothermal method is proposed for the preparation of Fe 3 O 4 nanoparticles (NPs) from iron acetylacetonate in the presence of oleylamine and n- hexane. The products are characterized by X-ray powder diffraction, infrared (IR) spectroscopy, transmission electron microscopy, thermogravimetry/differential thermogravimetry (TG/DTG) analysis, and vibrating sample magnetometery. The new procedure yields superparamagnetic monodispersed Fe 3 O 4 particles with sizes ranging from 7 nm to 12 nm. The nanocrystal sizes are controlled by adjusting the volume ratio of oleylamine to n- hexane. IR and TG/DTG analyses indicate that the oleylamine molecules, as stabilizers, are adsorbed on the surface of Fe 3 O 4 NPs as bilayer adsorption models. The surface adsorption quantities of oleylamine on 7.5 and 10.4 nm-diameter Fe 3 O 4 NPs are 18% and 11%, respectively. The hydrophobic surface of the obtained nanocrystals is passivated by adsorbed organic solvent molecules. These molecules provide stability against agglomeration, enable solubility in nonpolar solvents, and allow the formation of magnetic polymer micelles.
研究领域:
材料科学
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纳米技术
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF NANOPARTICLE RESEARCH
·
2017
·Vol. 19
·期 3
·1-6
·
IF 2.02
Chen Shun,Ju Yanyun,Guo Yi,Xiong Chuanxi,Dong Lijie
Ag NPs were in-site synthesized through microemulsion method by reducing silver acetate with oleylamine-mediated at 70 °C with highly monodisperse and narrow size from 10 to 20 nm. The synthesis of Ag NPs was aided by oleylamine and the role of oleylamine was researched. This in-site synthesis approach to Ag NPs was reproducibility and high yield more than 80% with stable store about 6 months.
研究领域:
纳米材料
·
化学合成
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2016
·Vol. 52
·期 8
·4483-4492
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IF 2.302
Lu Hongsheng,Tang Weiwei,Liu Xiang,Wang Baogang,Huang Zhiyu
The oleylamine (OA)-modified carbon nanoparticles (CPs -OA ) with particle sizes of 25–35 nm were synthesized by a facile one-pot pyrolysis method. As the OA molecules were covalently attached on the surfaces of CPs -OA , the CPs -OA exhibited good dispersibility in polyalphaolefin (PAO). Then the tribological behaviors of CPs -OA as the lubricating additives of PAO were investigated in detail. Under the four-ball mode and the load of 392 N, the CPs -OA showed the best friction-reducing and antiwear properties at the optimal concentration of 1.0 wt%. Specifically, in comparison with that of pure PAO, the mean friction coefficient and mean wear scar diameter of the 1.0 wt% CPs -OA /PAO suspension reduced by 47 and 30%, respectively. The friction-reducing and antiwear capabilities of CPs -OA strengthened with increasing load from 200 to 392 N and increasing test time from 240 to 480 min. In addition, the CPs -OA -based additives could work for a long time without weakening the lubrication capability. The synergistic effect of tribofilm, including PAO molecules and the CPs -OA layer, might account for the outstanding friction-reducing and antiwear capabilities of CPs -OA -based additives under boundary lubrication.
研究领域:
材料科学
·
润滑工程
✓ 已验证
产品关联
DOI
高影响因子
Advanced Materials Interfaces
·
2022
·Vol. 10
·期 1
·2201916
·
IF 6.389
Huazheng Li,Wangwei Lu,Gaoling Zhao,Bin Song,Weixia Dong,Gaorong Han
Due to the ultrafast nucleation and growth rates of perovskite nanostructures during the synthesis, the products are difficult to control, such as its derivatives (e.g., Cs 4 PbBr 6 ) often appear. Here, the hot-injection method is ameliorated by using oleylamine (OAm) instead of octadecene as solvent. The results reveal that in OAm-rich system, the pure nanostructures with different Pb/Br ratios (CsBr, Cs 4 PbBr 6 , and CsPbBr 3 ) can be obtained at different reaction temperatures, and thus controlling the Pb-Br linkage and the interconnection of [PbBr 6 ] 4− octahedra, and resulting in the formation of different nanostructures. As the reaction temperature increases from 120 to 180 °C, the products change from lead-free CsBr nanocrystals to poor-lead Cs 4 PbBr 6 nanocrystals and finally to normal CsPbBr 3 nanocubes and nanowires. Moreover, the synthesized CsPbBr 3 nanowires exhibit an emission peak at 521 nm, full width at half maximum (FWHM) of 19 nm, with photoluminescence quantum yields (PLQY) of 64.9%, and high stability. Furthermore, the white light-emitting diode (WLED) devices are successfully fabricated based on the obtained CsPbBr 3 nanowires, showing high-intensity white light and high stability without any encapsulation. Remarkably, this work provides a new approach for elucidating the synthesis mechanism of perovskite nanomaterials and their applications.
研究领域:
材料科学
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化学
✓ 已验证
产品关联
DOI
高影响因子
ChemistrySelect
·
2025
·Vol. 10
·期 37
·e02508
·
IF 2
Ziyi He,Zhengquan Zhang,Jing Liu,Yuling Wang,Liangfeng Li,Xingquan Zhang,Yong Ren
Micro–nano structures with hydrophobic properties are promising in self-cleaning, anti-corrosion, and anti-icing performance. Here, we report a solvothermal method to construct micro–nano structures on Al–Li alloy by introduction oleylamine. The results show the concentration of oleylamine has an effect on morphology and hydrophobic property of micro–nano structures formed on Al–Li alloy. The X-ray diffraction results indicates the micro–nano structure is mixture with AlOOH and Al(OH) 3 . When the concentration of oleylamine is about 0.48 mol/L, the length of micro–nano structures is up to microscale, the width of micro–nano structures is about 100–200 nm, and the water contact angle can achieve 152.3°. Graphical A hydrothermal solution was prepared by mixing oleylamine, sodium formate, and DMF. Then, the uniform mixed solution was successfully used to prepare micro–nano structures on the surface of Al–Li alloy by a one-step hydrothermal method. The results show that when the concentration of oleylamine reaches the optimal level (0.48 mol/L), the micro–nano structure is uniform and the voids are filled with air, thus forming a superhydrophobic state.
研究领域:
材料科学
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表面工程
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纳米技术
·
腐蚀防护
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功能材料
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2017
·
IF 2.714
Chunli Jiang,Zhi Wang,Hechun Lin,Yunqiu Wang,Chunhua Luo,Bo Li,Ruijuan Qi,Rong Huang,Xiaodong Tang,Hui Peng
Bi 2 O 3 nanoparticles are prepared by using a facile solution-based thermal decomposition method assisted by oleylamine. These Bi 2 O 3 nanoparticles self assemble into nanobelts. The reaction time and temperature affect self-assembly behaviour of the Bi 2 O 3 nanoparticles. Increasing the reaction time or temperature results in the larger size of nanoparticles, which leads to failure of formation of nanobelts. It is illustrated that oleylamine and the size of nanoparticles play key roles in the self-assembly of nanoparticles. Based on the experimental results, a formation mechanism of the self-assembled nanobelts was proposed and this method may be extended to fabrication of other metal oxide nanobelts.
研究领域:
材料科学
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2018
·Vol. 8
·期 4
·192
·
IF 3.504
Yifan Zheng,Nana Chen,Chunxiao Wang,Xiaoping Zhang,Zongjian Liu
While high-aspect-ratio metal nanowires are essential for producing nanowire-based electrodes of good performance used in electronics and electrocatalysis, the synthesis of millimeter-long Cu nanowires remains a challenge. This work demonstrates an oleylamine-mediated hydrothermal method for synthesis of Cu nanowires with an average diameter of ~80 nm and a length up to several millimeters. An investigation on the role of oleylamine in nanowire formation by mass spectroscopy, small angle X-ray diffraction and transmission electron microscopy reveals that oleylamine serves as a mild reducing agent for slow reduction of Cu(II) to Cu, a complexing agent to form Cu(II)-oleylamine complex for guiding the nanowire growth, as well as a surfactant to generate lamellar phase structure for the formation of nanowire bundles. The growth mechanism of these millimeter-long Cu nanowire bundles is proposed based on the experimental observations. Electrochemical measurements by linear sweep voltammetry indicate that the self-supported nanowire electrode prepared from as-formed Cu nanowire bundles shows high catalytic activity for electroreduction of nitrate in water.Keywords:Cu nanowires;hydrothermal method;oleylamine;nitrate;electroreduction
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
PubMed
高影响因子
RSC Advances
·
2014
·Vol. 5
·期 9
·6879-6885
·
IF 3.708
Ping An,Zhurong Liang,Xueqing Xu,Xin Wang,Hu Jin,Nan Wang,Junxia Wang,Furong Zhu
Pure phase kesterite Cu2ZnSnS4 (CZTS) nanocrystals (NCs) have been successfully synthesized via a heating-up method utilizing metal salts as cation sources and thioacetamide (TAA) as a coordinating sulphur precursor in combination with oleylamine (OAm) as a coordinating ligand and solvent. The slower release of H2S from the metal–TAA complexes, as compared with the commonly used sulphur powder, is crucial for control of the grain size and size distribution of the NCs. As dominating coordinating ligands, OAm led to Sn-rich nuclei and kesterite CZTS NCs. The formation of pure phase kesterite CZTS NCs depends significantly on the temperature and Zn2+/Sn4+ molar ratio of the reaction system. The formation mechanism of the pure phase kesterite CZTS NCs has been clarified taking into account the chemical potentials of the elements involved.
研究领域:
材料科学
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纳米技术
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Nuotong Sun,Chengsheng Wang,Weiyi Lu,Zixuan Chen,Kelan Yan,Zheng Huang,Lingjie Zhang,Bao Ningzhong
Copper nanoparticles (Cu NPs) have garnered significant attention in electronic printing owing to their remarkable conductivity and cost-effectiveness. Nevertheless, balancing excellent oxidation resistance with a low annealing temperature remains a formidable challenge. Hence, this study focuses on a novel method for the synthesis of mock-strawberry shaped Cu NPs utilizing alkaline copper carbonate as the precursor and oleylamine (OAM) as a dual function agent. SEM analysis reveals a unique structure featuring a 48 nm diameter core particle decorated with 4.5 nm shell particles. These OAM-stabilized Cu NPs exhibit robust antioxidant properties and a distinctive morphology conducive to the fabrication of conductive films. By employing a process that involves dispersion, spraying, and sintering, these NPs exhibit an impressive resistivity of 132.2 μΩ·cm, even at a relatively low annealing temperature of 220 °C. This achievement signifies a significant advancement in the field, addressing the long-standing challenge of balancing oxidation resistance with a low processing temperature.
研究领域:
纳米技术
·
材料科学
·
电子印刷
·
化学合成
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2024
·
IF 5.3
Shuo Song,Liwei Wang,Xinxin Guo,Hongyu Liu,Bingqiang Cao,Jinkai Li,Wenzhi Wang
The application of all inorganic halide perovskite quantum dots (PQDs) in the field of optoelectronic devices has made exciting progress. However, the preparation of CsPbX3·PQDs with high water stability is still a great challenge. In this article, the direct synthesis of CsPbCl3·PQDs in water using 4-chlorobutyric acid (CBA) and oleamine (OLA) as surface ligands was proposed for the first time. Transmission electron microscopy spectra show that the QDs synthesized in water have good crystallinity and monodispersity. At the same time, CBA-CsPbCl3·PQDs synthesized by this method continuously emitted light in water for more than 400 h. In contrast, OA-CsPbCl3·PQDs were almost completely quenched after only 20 min of mixing with water. X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and hydrogen spectroscopy nuclear magnetic resonance were used to verify the passivation effect of CBA on the surface of QDs. The carboxyl ligands provided by CBA form a stable hydrophobic shell on the surface of CsPbCl3·PQDs, which makes CsPbCl3·PQDs have excellent water stability. In this study, CsPbCl3·PQDs with excellent water stability were synthesized with CBA/OLA as the surface ligand for the first time, which provides an effective way to explore perovskite light-emitting diodes with good water stability.
研究领域:
材料科学
·
光电子学
·
纳米技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）