Journal of nanoscience and nanotechnology最新文献_第2页

Cadmium Sulfide (CdS) Thin Films with Improved Morphology for Humidity Sensing by Chemical Bath Deposition at Lower pH. 在低pH下化学浴沉积具有改善形态的硫化镉(CdS)薄膜用于湿度传感。

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.19521

Sucheta Sengupta, Avshish Kumar, V K Jain

引用次数: 3

Engineering the Band Structures of Zigzag Blue Phosphorene and Arsenene Nanoribbons by Incorporating Edge Corrugations: A First Principles Exploration. 利用边缘波纹设计之字形蓝色磷磷和砷纳米带的能带结构:第一性原理的探索。

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.19510

Aditya Dey, Debalina Chakraborty

{"title":"Engineering the Band Structures of Zigzag Blue Phosphorene and Arsenene Nanoribbons by Incorporating Edge Corrugations: A First Principles Exploration.","authors":"Aditya Dey, Debalina Chakraborty","doi":"10.1166/jnn.2021.19510","DOIUrl":"https://doi.org/10.1166/jnn.2021.19510","url":null,"abstract":"Using first principles calculations, we have presented a short study on modulation of band structures and electronic properties of zigzag blue phosphorene (ZbPNR) and arsenene nanoribbons (ZANR) by etching the edges of NRs. We have taken the width of both NRs as N = 8 and corrugated the edges in a cosine-like manner. Optimizing every structure and further investigating their stabilities, it was seen that both the etched NRs are energetically feasible. From the computed band structures, the band gaps were seen to be increased for both the NRs on increasing number of etched layers and direct gap semiconductor nature was recorded. Highest energy gap observed were 2.26 and 2.41 eV for ZbPNR and ZANR, respectively. On further application of electric field, we observed the very interesting semiconductor-to-metallic property transition which was explained by wave function plots. Being elements of same group, a similar trend of band gaps modulations was observed for both NRs. This fascinating method of electronic property tuning of the studied NRs can be useful in various nanoscale electronic applications.","PeriodicalId":16417,"journal":{"name":"Journal of nanoscience and nanotechnology","volume":"21 12","pages":"5929-5936"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39158695","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: 3

Impact of Synthesis Methods on Structural and Antifungal Properties of Metal Sulfide Nanoparticles. 合成方法对金属硫化物纳米颗粒结构和抗真菌性能的影响。

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.19515

Radha Ahuja, Anjali Sidhu, Anju Bala

{"title":"Impact of Synthesis Methods on Structural and Antifungal Properties of Metal Sulfide Nanoparticles.","authors":"Radha Ahuja, Anjali Sidhu, Anju Bala","doi":"10.1166/jnn.2021.19515","DOIUrl":"https://doi.org/10.1166/jnn.2021.19515","url":null,"abstract":"Nanotechnology has the ability to produce novel nano-sized materials with excellent physical and chemical properties to act against phytopathogenic diseases, essential for revolution of agriculture and food industry. The development of facile, reliable and eco-friendly processes for the synthesis of biologically active nanomaterials is an important aspect of nanotechnology. In the present paper, we attempted to compare sonochemical and co-precipitation method for the synthesis of metal sulfide nanoparticles (MS-NPs) for their structural and antifungal properties against various phytopathogenic fungi of rice. The preparation of nanospheres (NSs) and nano rods (NRs) of CuS, FeS and MnS was monitored by UV-Visible spectroscopy complemented by transmission electron microscope (TEM), scanning electron microscope (SEM), atomic force microscopy (AFM), dynamic light scattering (DLS) and Zeta potential analyser. Sonochemical method resulted in formation of spherical shaped nanoparticles of size (7-120 nm), smaller than those of nanorods (50-200 nm) prepared by co-precipitation produced. It was observed that the metal sulfide nanospheres exhibited a better antifungal potential against D. oryzae, C. lunata and S. oryzae as compared to rod shaped metal sulfide nanoparticles. Smaller size and large surface area of spherical shaped particles opens up an important perspective of the prepared MS-NPs.","PeriodicalId":16417,"journal":{"name":"Journal of nanoscience and nanotechnology","volume":"21 12","pages":"5896-5905"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39158767","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

Study on Cavitation and Tribological of TiO₂ Nano-Film on Bearing Pads Surface. 轴承垫表面二氧化钛纳米膜的空化与摩擦学研究。

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.19506

Juan Zhang, Donghui Li, Bo Zhang

引用次数: 0

Potato Peel Based Carbon-Sulfur Composite as Cathode Materials for Lithium Sulfur Battery. 马铃薯皮碳硫复合材料作为锂硫电池正极材料。

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.19288

Arenst Andreas Arie, Shealyn Lenora, Hans Kristianto, Ratna Frida Susanti, Joong Kee Lee

引用次数: 2

Elevated Electrochemical Performance of LiNi_0.1Mg_0.1Co_0.8O₂ and LiFePO₄ Cathodes with Tris(2,2,2-trifluoroethyl) Phosphite as an Efficient Electrolyte Additive. 三(2,2,2-三氟乙基)亚磷酸酯作为高效电解质添加剂提高LiNi0.1Mg0.1Co0.8O₂和LiFePO₄阴极的电化学性能

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.19322

S Arockia Shyamala Paniyarasi, S Padmaja, M Pushpa Selvi, R M Gnanamuthu, R Nimma Elizabeth

{"title":"Elevated Electrochemical Performance of LiNi0.1Mg0.1Co0.8O₂ and LiFePO₄ Cathodes with Tris(2,2,2-trifluoroethyl) Phosphite as an Efficient Electrolyte Additive.","authors":"S Arockia Shyamala Paniyarasi, S Padmaja, M Pushpa Selvi, R M Gnanamuthu, R Nimma Elizabeth","doi":"10.1166/jnn.2021.19322","DOIUrl":"https://doi.org/10.1166/jnn.2021.19322","url":null,"abstract":"The significant role of Tris(2,2,2-trifluoroethyl) phosphite (TTFP) as an efficient additive during cycling of the layered nanostructured LiNi0.1Mg0.1Co0.8O₂ and olivine LiFePO₄ cathode materials in EC/DMC and 1M LiPF6 electrolyte for Li-ion battery are extensively investigated in this work. The electrochemical characterization techniques such as cyclic voltammetry, galvanostatic charge/discharge, and electrochemical impedance spectroscopy show that TTFP improves cycling stability and reduces the irreversible capacity of LiNi0.1Mg0.1Co0.8O₂ and LiFePO₄ electrodes. Also, the presence of TTFP in electrolyte solution reduces the impedance in LiNi0.1Mg0.1Co0.8O₂ and LiFePO₄ cathode materials at room temperature. A family of Nyquist plots was obtained from LiNi0.1Mg0.1Co0.8O₂ and LiFePO₄ electrodes for various potentials during the course of charging. The addition of TTFP in the electrolyte reduces the surface impedance of lithiated LiNi0.1Mg0.1Co0.8O₂ and LiFePO₄ which can be attributed to the reaction of the additive on the electrode's surface. Also, the presence of the additive TTFP in LiNi0.1Mg0.1Co0.8O₂ and LiFePO₄ cell enhances the lithium diffusion rate and improves the electronic conductivity of the cathode material.","PeriodicalId":16417,"journal":{"name":"Journal of nanoscience and nanotechnology","volume":"21 12","pages":"6227-6233"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39158965","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

Facilely Prepared Cl-Doped Graphene as an Efficient Anode for the Electrochemical Catalytic Degradation of Acetaminophen. 易于制备的cl掺杂石墨烯作为电化学催化降解对乙酰氨基酚的高效阳极。

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.19526

Qian Zhang, Bingxin Wang, Jun-Ming Hong

引用次数: 0

Observation of Dominant Nuclei and Magic-Sized CdS Nanoparticles in a Single-Phase System. 单相体系中优势核和魔术大小CdS纳米颗粒的观察。

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.19504

Xiaobo Nie, Yanming Chen

{"title":"Observation of Dominant Nuclei and Magic-Sized CdS Nanoparticles in a Single-Phase System.","authors":"Xiaobo Nie, Yanming Chen","doi":"10.1166/jnn.2021.19504","DOIUrl":"https://doi.org/10.1166/jnn.2021.19504","url":null,"abstract":"Cadmium sulfide nanoparticles (CdS NPs) were synthesized by using cadmium acetate and thiourea as precursors and sodium oleate as the surfactant under different cadmium acetate concentrations in anhydrous ethanol. Cadmium (Cd) precursor concentration greatly affected the nucleation-growth of CdS NPs. In extremely dilute solution with a Cd precursor concentration of 0.1 mmol · L-1, an overlapped nucleation and growth corresponding to two pronounced absorption peaks at 310 nm and 350 nm, respectively, was observed. Unparalleled nucleation was dominant within very long reaction time until 10 hours. The nuclei and the resulting magic-sized CdS NPs may be used as seeds to prepare size and shape controllable nanoparticles. On the contrary, at a high Cd precursor concentration (5 mmol · L-1), nucleation and growth were separated. Only one first exciton absorption peak standing for the growth of regular CdS NPs appeared at 440 nm. Many techniques including transmission electron microscopy (TEM), X-ray powder diffraction (XRD), ultraviolet-visible (UV-Vis) absorption and photoluminescence (PL) spectrometers were applied to characterize the morphology, crystalline structure, and optical properties of CdS NPs.","PeriodicalId":16417,"journal":{"name":"Journal of nanoscience and nanotechnology","volume":"21 12","pages":"5987-5992"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39158624","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

Manganese Dioxide (α-MnO₂) and Graphene Oxide (GO) Nanocomposites: An Efficient Promotor for the Oxidative Deprotection of Trimethylsilyl, Tetrahydropyranyl and Methoxymethyl Ethers. 二氧化锰(α- mno2)和氧化石墨烯(GO)纳米复合材料:三甲基硅基、四氢吡喃和甲氧基甲基醚氧化脱保护的高效促进剂

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.19519

Pouran Pourayoob Foumani, Hassan Tajik, Farhad Shirini, Shahed Hassanpoor

引用次数: 4

Electronic Parameters of Diode Based Organometallic Semiconductor Dyes Centered Ruthenium Complexes with Active COOH Terminals. 具有活性羧基末端钌配合物的二极管基有机金属半导体染料的电子参数。

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.19508

Ali Kemal Havare

{"title":"Electronic Parameters of Diode Based Organometallic Semiconductor Dyes Centered Ruthenium Complexes with Active COOH Terminals.","authors":"Ali Kemal Havare","doi":"10.1166/jnn.2021.19508","DOIUrl":"https://doi.org/10.1166/jnn.2021.19508","url":null,"abstract":"In this study, the ruthenium complexes, which is an organometallic N-3 and C-106 semiconductor material, was coated on indium tin oxide (ITO) by using the self-assembled technique and thus a diode containing an organometallic interface was produced. The effects of this interface on the electronic parameters of the diode were investigated. It is aimed to improve the heterogeneity problem of the inorganic/organic interface by chemically bonding these materials from COOH active parts to the ITO surface. In order to understand how the electronic parameters of the diode change with this modification, the Schottky diode electrical characterization approach has been used. The charge mobility of the diode was calculated using the current density-voltage curve (J-V) characteristic with Space Charge Limited Current (SCLC) technique. When the electrical field is applied to the diode, it can be said that the ruthenium complexes molecules create an electrical dipole and the tunneling current is transferred to the anode contact ITO through the ruthenium molecule through the charge carrier, thus contributing to the hole injection. The morphology of these interface modifications was examined by Atomic Force Microscope (AFM) and surface potential energy by KelvinProbe Force Microscope (KPFM). To investigate local conductivity of bare ITO and modified ITO surface, Scanning Spreading Resistance Microscopy (SSRM) that is a conductive AFM analyzing technique were performed by applying voltage to the conductive tip and to the sample. According to the results of this work the diode containing N-3 material shows the best performance in terms of charge injection to the ITO due to possess the lowest barrier height Φb as 0.43 eV.","PeriodicalId":16417,"journal":{"name":"Journal of nanoscience and nanotechnology","volume":"21 12","pages":"5937-5944"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39158696","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