发布求助
文献互助 智能选刊 最新文献

Journal of Nanoparticles最新文献

筛选
英文 中文
Hydrophobic Coatings Composed by Cubic-Shaped CdO Nanoparticles Grown by a Novel and Simple Microwave Method 用一种新颖简单的微波法制备立方状CdO纳米颗粒组成疏水涂层
Journal of Nanoparticles Pub Date : 2016-01-27 DOI: 10.1155/2016/8389647
M. Rashidzadeh, G. Carbajal-Franco, A. Tiburcio-Silver
{"title":"Hydrophobic Coatings Composed by Cubic-Shaped CdO Nanoparticles Grown by a Novel and Simple Microwave Method","authors":"M. Rashidzadeh, G. Carbajal-Franco, A. Tiburcio-Silver","doi":"10.1155/2016/8389647","DOIUrl":"https://doi.org/10.1155/2016/8389647","url":null,"abstract":"Cube-shaped cadmium oxide (CdO) nanoparticles were deposited by a novel low cost microwave evaporation technique. High purity cadmium (Cd) flakes were placed in a microwave susceptor inside a commercial microwave oven. Metallic Cd was evaporated in less than 2 minutes and it was oxidized due to ambient oxygen. The CdO nanoparticles were deposited on a glass substrate placed few centimeters above the susceptor. The surfaces with nanoparticles were treated with a solution containing ethanol and phenyltriethoxysilane (PTES), and the hydrophobic properties of the as-synthesized and post-PTES-treated surfaces were studied. Morphological and structural information of the as-synthesized nanoparticles were investigated via SEM and XRD analysis. Contact angles () for the as-synthesized CdO surfaces were about 112°, whereas, for ethanol/PTES-treated CdO nanoparticles surfaces, contact angles were improved to about 158°. Thus, ethanol/PTES-treated CdO nanoparticles obtained by this simple procedure showed superhydrophobicity properties of potential use in micro fluidic devices and some other applications in the future.","PeriodicalId":16507,"journal":{"name":"Journal of Nanoparticles","volume":"11 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2016-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87067088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Ammonia Sensing by PANI-DBSA Based Gas Sensor Exploiting Kelvin Probe Technique 利用开尔文探针技术的聚苯胺- dbsa气体传感器氨传感
Journal of Nanoparticles Pub Date : 2015-11-17 DOI: 10.1155/2015/842536
A. Yadav, A. Agarwal, P. Agarwal, P. Saini
{"title":"Ammonia Sensing by PANI-DBSA Based Gas Sensor Exploiting Kelvin Probe Technique","authors":"A. Yadav, A. Agarwal, P. Agarwal, P. Saini","doi":"10.1155/2015/842536","DOIUrl":"https://doi.org/10.1155/2015/842536","url":null,"abstract":"Dodecyl benzene sulfonic acid (DBSA) doped polyaniline (PANI-DBSA) has been synthesized by chemical oxidative polymerization of aniline monomer in the presence of DBSA. The UV-visible spectroscopy and X-ray diffraction measurements confirm the formation of PANI and its doping by DBSA. SEM images show the formation of submicron size rod shaped PANI particles. A vibrating capacitor based ammonia gas sensor was prepared by spin coating PANI-DBSA film over copper (Cu) substrate. The sensor exploited Kelvin probe technique to monitor contact potential difference between PANI and Cu as a function of time and ammonia concentration. Upon exposure to 30 ppm ammonia, the sensor displays response time of 329 s, recovery time of 3600 s, and sensitivity value of 1.54 along with good repeatability.","PeriodicalId":16507,"journal":{"name":"Journal of Nanoparticles","volume":"138 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2015-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77398597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Effect of Microbes on the Adsorption of Naphthalene by Graphene Oxide 微生物对氧化石墨烯吸附萘的影响
Journal of Nanoparticles Pub Date : 2015-09-28 DOI: 10.1155/2015/816982
Xiaoyu Li, Fengbo Li, Lejin Fang
{"title":"Effect of Microbes on the Adsorption of Naphthalene by Graphene Oxide","authors":"Xiaoyu Li, Fengbo Li, Lejin Fang","doi":"10.1155/2015/816982","DOIUrl":"https://doi.org/10.1155/2015/816982","url":null,"abstract":"The adsorption of naphthalene on graphene oxide (GO) nanosheets in presence of Paecilomyces cateniannulatus (P. cateniannulatus) was conducted by the batch techniques. The morphology and nanostructure of GO were characterized by SEM, TEM, FTIR, XPS, and Raman. The adsorption kinetics indicated that the adsorption of naphthalene on GO and GO","PeriodicalId":16507,"journal":{"name":"Journal of Nanoparticles","volume":"75 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2015-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85984275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 18
Novel Electrochemical Synthesis of Polypyrrole/Ag Nanocomposite and Its Electrocatalytic Performance towards Hydrogen Peroxide Reduction 新型聚吡咯/银纳米复合材料的电化学合成及其对过氧化氢还原的电催化性能
Journal of Nanoparticles Pub Date : 2015-09-21 DOI: 10.1155/2015/149406
Ruma Gupta, K. Jayachandran, J. Gamare, B. Rajeshwari, S. Gupta, J. Kamat
{"title":"Novel Electrochemical Synthesis of Polypyrrole/Ag Nanocomposite and Its Electrocatalytic Performance towards Hydrogen Peroxide Reduction","authors":"Ruma Gupta, K. Jayachandran, J. Gamare, B. Rajeshwari, S. Gupta, J. Kamat","doi":"10.1155/2015/149406","DOIUrl":"https://doi.org/10.1155/2015/149406","url":null,"abstract":"A simple electrochemical method of synthesis of polypyrrole/silver (PPy/Ag) nanocomposite is presented. The method is based on potentiodynamic polymerization of pyrrole followed by electrodeposition of silver employing a single potentiostatic pulse. The synthesized PPy film has embedded Ag nanocubes. The morphology and structure of the resulting nanocomposite were characterized by field emission scanning electron microscopy and X-ray diffraction. Electron paramagnetic resonance studies showed that silver nanoparticle deposition on polypyrrole leads to an increase in carrier density, indicative of enhanced conductivity of the resulting composite. Electrocatalytic performance of the prepared composite was examined for reduction of hydrogen peroxide and was compared with corresponding PPy film and bare glassy carbon electrode.","PeriodicalId":16507,"journal":{"name":"Journal of Nanoparticles","volume":"12 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2015-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88785631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Generation Control of ZnO Nanoparticles Using a Coaxial Gas-Flow Pulse Plasma Ar/O2 Plasma 利用同轴气流脉冲等离子体Ar/O2等离子体控制ZnO纳米颗粒的生成
Journal of Nanoparticles Pub Date : 2015-09-07 DOI: 10.1155/2015/410468
H. Shirahata, S. Iizuka
{"title":"Generation Control of ZnO Nanoparticles Using a Coaxial Gas-Flow Pulse Plasma Ar/O2 Plasma","authors":"H. Shirahata, S. Iizuka","doi":"10.1155/2015/410468","DOIUrl":"https://doi.org/10.1155/2015/410468","url":null,"abstract":"Generation of ZnO nanoparticles was investigated using a coaxial gas-flow pulse plasma. We studied how zinc atoms, sputtered from a zinc target, reacted with oxygen in a plasma and/or on a substrate to form ZnO nanoparticles when the discharge parameters, such as applied pulse voltage and gas flow rate, were controlled in an O2/Ar plasma. The formation processes were estimated by SEM, TEM, and EDX. We observed many ZnO nanoparticles deposited on Si substrate. The particle yield and size were found to be controlled by changing the experimental parameters. The diameter of the particles was typically 50–200 nm.","PeriodicalId":16507,"journal":{"name":"Journal of Nanoparticles","volume":"07 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2015-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86190809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Synthesis and Characterization of Nanocrystalline Ni50Al50-xMox (X=0-5) Intermetallic Compound During Mechanical Alloying Process 机械合金化过程中纳米晶Ni50Al50-xMox (X=0-5)金属间化合物的合成与表征
Journal of Nanoparticles Pub Date : 2015-09-03 DOI: 10.1155/2015/651852
A. Khajesarvi, G. Akbari
{"title":"Synthesis and Characterization of Nanocrystalline Ni50Al50-xMox (X=0-5) Intermetallic Compound During Mechanical Alloying Process","authors":"A. Khajesarvi, G. Akbari","doi":"10.1155/2015/651852","DOIUrl":"https://doi.org/10.1155/2015/651852","url":null,"abstract":"In the present study, nanocrystalline Ni50Al50-xMox (X = 0, 0.5, 1, 2.5, 5) intermetallic compound was produced through mechanical alloying of nickel, aluminum, and molybdenum powders. AlNi compounds with good and attractive properties such as high melting point, high strength to weight ratio and high corrosion resistance especially at high temperatures have attracted the attention of many researchers. Powders produced from milling were analyzed using scanning electron microscopy (SEM) and X-ray diffractometry (XRD). The results showed that intermetallic compound of NiAl formed at different stage of milling operation. It was concluded that at first disordered solid solution of (Ni,Al) was formed then it converted into ordered intermetallic compound of NiAl. With increasing the atomic percent of molybdenum, average grain size decreased from 3 to 0.5 μm. Parameter lattice and lattice strain increased with increasing the atomic percent of molybdenum, while the crystal structure became finer up to 10 nm. Also, maximum microhardness was obtained for NiAl49Mo1 alloy.","PeriodicalId":16507,"journal":{"name":"Journal of Nanoparticles","volume":"96 1","pages":"227-235"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73168366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Nano/Microstructured Materials 2014 纳米/微结构材料2014
Journal of Nanoparticles Pub Date : 2015-06-28 DOI: 10.1155/2015/754236
A. Kajbafvala, H. Bahmanpour, Ali Moballegh, M. Maneshian, H. Zargar
{"title":"Nano/Microstructured Materials 2014","authors":"A. Kajbafvala, H. Bahmanpour, Ali Moballegh, M. Maneshian, H. Zargar","doi":"10.1155/2015/754236","DOIUrl":"https://doi.org/10.1155/2015/754236","url":null,"abstract":"","PeriodicalId":16507,"journal":{"name":"Journal of Nanoparticles","volume":"63 1 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2015-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90020312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structured Pd/γ-Al2O3 Prepared by Washcoated Deposition on a Ceramic Honeycomb for Compressed Natural Gas Applications 陶瓷蜂窝表面洗涂沉积制备压缩天然气用结构Pd/γ-Al2O3
Journal of Nanoparticles Pub Date : 2015-06-23 DOI: 10.1155/2015/601941
M. Adamowska, P. Costa
{"title":"Structured Pd/γ-Al2O3 Prepared by Washcoated Deposition on a Ceramic Honeycomb for Compressed Natural Gas Applications","authors":"M. Adamowska, P. Costa","doi":"10.1155/2015/601941","DOIUrl":"https://doi.org/10.1155/2015/601941","url":null,"abstract":"The preparation of a coating procedure was studied, from the washcoating with γ-alumina to the deposition of palladium by excess solvent or incipient wetness impregnation. \u0000The powder and the washcoat layers were studied by different characterisation techniques such as SEM, BET surface area, and XRD. Vibration-resistance and heat-resistance were also evaluated. It was shown that the alumina layer is quite well deposited on the channel walls (SEM images). However, a detachment of the washcoat layer was observed after ultrasound treatment. It was proved that the monolith Pd impregnation method by incipient wetness impregnation is more efficient. The presence of palladium was confirmed using HRTEM, the palladium was present under the Pd (II) oxidation state, and the size of PdO particles varies between 2.5 and 3.1 nm. The catalytic properties of the monolith catalyst were carried out using temperature programmed surface reaction (TPSR). The efficiency of the procedure of the monolith catalyst preparation was confirmed by comparing the activity of the prepared catalyst with the one of a model catalyst.","PeriodicalId":16507,"journal":{"name":"Journal of Nanoparticles","volume":"46 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2015-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72796611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 23
Modulatory Effect of Citrate Reduced Gold and Biosynthesized Silver Nanoparticles on α-Amylase Activity 柠檬酸还原金纳米粒子和生物合成银纳米粒子对α-淀粉酶活性的调节作用
Journal of Nanoparticles Pub Date : 2015-06-23 DOI: 10.1155/2015/829718
Kantrao Saware, R. Aurade, P. Jayanthi, V. Abbaraju
{"title":"Modulatory Effect of Citrate Reduced Gold and Biosynthesized Silver Nanoparticles on α-Amylase Activity","authors":"Kantrao Saware, R. Aurade, P. Jayanthi, V. Abbaraju","doi":"10.1155/2015/829718","DOIUrl":"https://doi.org/10.1155/2015/829718","url":null,"abstract":"Amylase is one of the important digestive enzymes involved in hydrolysis of starch. In this paper, we describe a novel approach to study the interaction of amylase enzyme with gold nanoparticles (AuNPs) and silver nanoparticles (AgNPs) and checked its catalytic function. AuNPs are synthesized using citrate reduction method and AgNPs were synthesized using biological route employing Ficus benghalensis and Ficus religiosa leaf extract as a reducing and stabilizing agent to reduce silver nitrate to silver atoms. A modulatory effect of nanoparticles on amylase activity was observed. Gold nanoparticles are excellent biocompatible surfaces for the immobilization of enzymes. Immobilized amylase showed 1- to 2-fold increase of activity compared to free enzyme. The biocatalytic activity of amylase in the bioconjugate was marginally enhanced relative to the free enzyme in solution. The bioconjugate material also showed significantly enhanced pH and temperature stability. The results indicate that the present study paves way for the modulator degradation of starch by the enzyme with AuNPs and biogenic AgNPs, which is a promising application in the medical and food industry.","PeriodicalId":16507,"journal":{"name":"Journal of Nanoparticles","volume":"19 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2015-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87715093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 23
Aqueous Synthesis of Ru Doped Hematite Nanostructures: A Morphological, Structural, Optical, and Magnetic Study 钌掺杂赤铁矿纳米结构的水合成:形态、结构、光学和磁性研究
Journal of Nanoparticles Pub Date : 2015-06-17 DOI: 10.1155/2015/654587
C. Ndlangamandla, K. Bharuth-Ram, O. M. Ndwandwe, B. Ngom, M. Maaza
{"title":"Aqueous Synthesis of Ru Doped Hematite Nanostructures: A Morphological, Structural, Optical, and Magnetic Study","authors":"C. Ndlangamandla, K. Bharuth-Ram, O. M. Ndwandwe, B. Ngom, M. Maaza","doi":"10.1155/2015/654587","DOIUrl":"https://doi.org/10.1155/2015/654587","url":null,"abstract":"Hematite nanorods doped with ruthenium were successfully deposited on fluorine doped tin oxide (FTO) glass substrates using aqueous chemical growth. Using complementary surface/interface investigation techniques, the Ru incorporation in the Ru-α-Fe2O3 nanorods was evidenced. The optical band gap was found to be Ru doping concentration dependent: varying from 2.32 (2) to 2.47 (2) eV. These band gap values are well suited for the targeted water splitting process without application of an external bias.","PeriodicalId":16507,"journal":{"name":"Journal of Nanoparticles","volume":"122 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2015-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73632296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信