Preparation and Research of Skeletal Pt-C Compounds

Platinum matrix composite is a new type of functional pottery material, which has excellent mechanical, electrical and optical properties. Due to the complexity of the synthesis method and the expensive equipment, the development of cermet material is extremely slow, so that the method to solve the problem is urgently needed. In view of the excellent performance of the Pt-C compounds, by hydrothermal method and high temperature roasting method, a new synthesis method for the composite is proposed using melamine and four platinum chloride at 60 °C by the polymerization reaction with a molar ratio of 20:1. The synthetic of Pt-C compounds provides a new synthesis method and new ideas and at the same time the Pt-C compounds has excellent performance, showing the excellent applications in machining.

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Synthesis and Characterization of Magnetic Nanomaterials with Adsorptive Properties of Arsenic Ions

Molecules ◽

10.3390/molecules25184117 ◽

2020 ◽

Vol 25 (18) ◽

pp. 4117

Author(s):

Agnieszka Wojciechowska ◽

Zofia Lendzion-Bieluń

Keyword(s):

Titanium Dioxide ◽

Titanium Dioxide Nanoparticles ◽

Synthesis Method ◽

Magnetic Nanomaterials ◽

Molar Ratio ◽

Magnetic Adsorbents ◽

New Synthesis ◽

Removal Of Arsenic ◽

20 Nm ◽

Adsorptive Properties

A new synthesis method of hybrid Fe3O4/C/TiO2 structures was developed using microwave-assisted coprecipitation. The aim of the study was to examine the effect of the addition of glucose and titanium dioxide on adsorptive properties enabling removal of arsenic ions from the solution. The study involved the synthesis of pure magnetite, magnetite modified with glucose and magnetite modified with glucose and titanium dioxide in magnetite: glucose: titanium dioxide molar ratio 1:0.2:3. Materials were characterized by XRD, FT-IR, and BET methods. Magnetite and titanium dioxide nanoparticles were below 20 nm in size in obtained structures. The specific surface area of pure magnetite was approximately 79 m2/g while that of magnetite modified with titanium dioxide was above 190 m2/g. Obtained materials were examined as adsorbents used for removal As(V) ions from aqueous solutions. Adsorption of arsenic ions by pure magnetite and magnetite modified with titanium dioxide was very high, above 90% (initial concentration 10 mg/L), pH in the range from 2 to 7. The preparation of magnetic adsorbents with a high adsorption capacity of As(V) ions was developed (in the range from 19.34 to 11.83 mg/g). Magnetic properties enable the easy separation of an adsorbent from a solution, following adsorption.

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NH3/TMI molar ratio dependence of electrical and optical properties for atmospheric-pressure MOVPE InN

physica status solidi (c) ◽

10.1002/pssc.200565174 ◽

2006 ◽

Vol 3 (6) ◽

pp. 1527-1530 ◽

Cited By ~ 8

Author(s):

A. Yamamoto ◽

H. Miwa ◽

Y. Shibata ◽

A. Hashimoto

Keyword(s):

Optical Properties ◽

Atmospheric Pressure ◽

Molar Ratio ◽

Electrical And Optical Properties ◽

Ratio Dependence

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Influence of molar ratio of Sb/Zn on the crystal, electrical and optical properties of Sb-doped ZnO films

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2016.12.391 ◽

2017 ◽

Vol 699 ◽

pp. 690-694 ◽

Cited By ~ 3

Author(s):

Yi Cheng ◽

Kun Yang ◽

Jixiang Chen ◽

Li Che ◽

Xizhen Zhang

Keyword(s):

Optical Properties ◽

Molar Ratio ◽

Zno Films ◽

Electrical And Optical Properties ◽

Doped Zno

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A new type of solid-state luminescent 2-phenylbenzo[g]furo[2,3-b]quinoxaline derivative: synthesis, photophysical characterization and transporting properties

Journal of Materials Chemistry C ◽

10.1039/c9tc02539a ◽

2019 ◽

Vol 7 (31) ◽

pp. 9690-9697 ◽

Cited By ~ 1

Author(s):

Gang Wang ◽

Jie Li ◽

Yixiang Li ◽

Dongdong Wang ◽

Jingjing Zhang ◽

...

Keyword(s):

Solid State ◽

Organic Semiconductors ◽

Synthesis Method ◽

Hole Mobility ◽

Quinoxaline Derivative ◽

New Synthesis ◽

New Type

We developed a new synthesis method of furo [2,3-b] quinoxaline core and report a new type of 2-phenylbenzo[g]furo [2,3-b] quinoxaline organic semiconductors, which shows 22.1% PLQY in solid powders and hole mobility of 2.58 × 10−2 cm2 V−1 s−1.

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Electrical and Optical Properties of Green Polymer Light Emitting Diodes with Various Structures of Au Nanoparticles

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2015.11202 ◽

2015 ◽

Vol 15 (10) ◽

pp. 7693-7698

Author(s):

Byung Min Park ◽

Gi Ppeum Kim ◽

Sae Chan Mun ◽

Ho Jung Chang

Keyword(s):

Optical Properties ◽

Au Nanoparticles ◽

Light Emitting Diodes ◽

Synthesis Method ◽

Hole Injection ◽

Electrical And Optical Properties ◽

Au Nps ◽

Light Emitting ◽

Polymer Light Emitting Diodes ◽

Green Polymer

The green polymer light emitting diodes (PLEDs) were fabricated using the solution precursor synthesis method. To improve the device’s electrical and optical properties, gold (Au) nanoparticles (NPs) were added to the hole injection layer (HIL) with poly(3,4-ethylene-dioxythiophene): poly(styrenesulfolnate) (PEDOT:PSS) organic material. The green PLED devices with a structure of glass/ITO/PEDOT:PSS+Au NPs/PVK:Ir(ppy)3/TPBi/LiF/Al were prepared by conventional spin-coating and thermal evaporation methods. Various concentrations of Au NPs were doped to the HILs to optimize the device’s light emitting characteristic. The effects of Au NPs concentrations on the properties of PLEDs were investigated. The doping concentrations of Au NPs were changed ranging from 0.0 to 1.0 vol%. At the optimized Au NPs concentration of 0.5 vol%, we also studied the effects of various film layers with and without Au NPs on the properties of PLEDs. The maximum luminance and external quantum efficiency of the devices were found to be 20430 cd/m2 and 7.49%, respectively.

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Properties of A—Sin:H Films Prepared by Glow Discharge of Si2H6—Nh3 Gas Mixture

MRS Proceedings ◽

10.1557/proc-49-203 ◽

1985 ◽

Vol 49 ◽

Cited By ~ 1

Author(s):

Y. Kojima ◽

S. Narikawa ◽

T. Matsuyama ◽

E. Imada ◽

H. Nojima ◽

...

Keyword(s):

Optical Properties ◽

Glow Discharge ◽

Deposition Rate ◽

Molar Ratio ◽

Gas Mixture ◽

High Deposition Rate ◽

Electrical And Optical Properties ◽

Optical Gap ◽

Wide Range ◽

Photo Conductivity

AbstractThe electrical and optical properties of a—SiNx:H films prepared by the glow discharge of Si2H6-NH3 gas mixture have been investigated in a wide range of the molar ratio of NH3 to Si2H6 The maxima of the dark—and the photo—conductivity are observed at the molar ratio of about 10-1. At this molar ratio the deposition rate is about33 Å/sec. The optical gap and the compositional ratio of nitrogen to silicon change smoothly from those of a—Si:H to those of a—Si3N4. It is found that the valency control is possible in a—SiNx:H films prepared at a high deposition rate.

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A novel electrochemiluminescence aptasensor for sensitive detection of kanamycin based on the synergistic enhancement effects between black phosphorous quantum dots and silver-decorated high-luminescence polydopamine nanospheres

The Analyst ◽

10.1039/d1an00265a ◽

2021 ◽

Author(s):

Jing Wen ◽

Ding Jiang ◽

Xueling Shan ◽

Wenchang Wang ◽

Fangmin Xu ◽

...

Keyword(s):

Quantum Dots ◽

Optical Properties ◽

Sensitive Detection ◽

Electrical And Optical Properties ◽

Monitoring Method ◽

Synergistic Enhancement ◽

New Type ◽

Black Phosphorous

Black phosphorous quantum dots (BPQDs), as a new type of nanomaterial, had excellent electrical and optical properties. In this work, an efficient monitoring method for kanamycin (KAN) was developed based...

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