Droplet Rapid-Analasis Method of Metal-Salt Solution Based on Triboelectric Effect

2019 ◽  
Author(s):  
Zhaohui Wu ◽  
Jingfu Bao ◽  
Yi Zhang ◽  
Yinglan Chen ◽  
Xiaosheng Zhang
Keyword(s):  
Salt Solution ◽  
Metal Salt ◽  
Metal Salt Solution ◽  
Triboelectric Effect

Ionic Properties of the Metal-Salt Solution Cax(CaCl2)1-x

1997 ◽  
Vol 66 (2) ◽  
pp. 392-395 ◽  
Author(s):  
Huang Shi Ping ◽  
Fukuo Yoshida
Keyword(s):  
Salt Solution ◽  
Metal Salt ◽  
Metal Salt Solution

scholarly journals Removal of ammonia and hydrogen sulfide from livestock farm by copper modified activated carbon

2020 ◽  
Keyword(s):  
High Pressure ◽  
Hydrogen Sulfide ◽  
Activated Carbon ◽  
Salt Solution ◽  
Metal Salt ◽  
Modified Activated Carbon ◽  
Adsorption Performance ◽  
Hydrothermal Modification ◽  
Metal Salt Solution ◽  
Impregnation Modification

<p>Ammonia (NH3) and hydrogen sulfide (H2S), as the main odorous substances in waste gas from livestock farm, have attracted more attentions rescently since their adverse effects. To remove NH3 and H2S efficiently, high-pressure hydrothermal modification (HPHM), metal salt solution impregnation modification (MSIM), and HPHM combined with MSIM are used to modify the activated carbon (AC). Meanwhile, the pore structure and surface functional groups of AC and MAC absorbents are characterized by BET, FTIR and Boehm titration method. The adsorption performance of activated carbon (AC) and modified activated carbon (MAC) are compared. The effects of modification and operation conditions on the adsorption performance of MAC for NH3 and H2S are studied in detail. It was found that the optimal adsorption performance of MAC can be achieved by high-pressure hydrothermal modification (HPHM) followed by the metal salt solution impregnation modification (MSIM). With gas space velocity of 900 h-1 and total inlet concentration of 550-650 mg m-3 at 50 oC, the adsorption capacities of NH3 and H2S of GS270CuCl6010 are 24.17 mg g-1 and 26.20 mg g-1, respectively. The adsorption of NH3 and H2S by MAC is the result of both physical adsorption and chemical adsorption.</p>

Metal Salt Solution-Nanoprecipitation Method for Improvement in Reliability of Sintered Ag Nanoparticle Bonding

2015 ◽  
Vol 2015 (1) ◽  
pp. 000669-000674
Author(s):  
Daisuke Hiratsuka ◽  
Akihiro Sasaki ◽  
Tomohiro Iguchi ◽  
Tetsuya Yamamoto ◽  
Tsuyoshi Sato
Keyword(s):  
High Temperature ◽  
Salt Solution ◽  
Metal Salt ◽  
Junction Temperature ◽  
Ag Nanoparticle ◽  
High Thermostability ◽  
Metal Salt Solution ◽  
High Temperature Storage ◽  
Sintered Ag ◽  
Temperature Storage

Interest in die-attach materials with high thermostability has been stimulated by the high junction temperature of power semiconductors. Sintered Ag nanoparticle bonding is the most attractive candidate for use as solder because of its high melting point (1253 K) and low process temperature (~573 K). Recent studies have assumed that this bonding exhibits high thermostability above 573 K. However, in fact, it is difficult to preserve the bonding strength after high-temperature storage at 523 K for 1000 h. Thus, we first clarified that the sintered Ag nanoparticle bonding was degraded by micropore coalescence caused by the Ag grain growth. We then developed the metal salt solution-nanoprecipitation (MS2NP) method for improving the reliability of the sintered Ag nanoparticle bonding. We found that the bonding used by the MS2NP method can maintain a high die-shear strength (~40 MPa) even after high-temperature storage at 573 K for 1000 h.

Continuous hydrothermal synthesis and crystallization of magnetic oxide nanoparticles

2002 ◽  
Vol 17 (9) ◽  
pp. 2410-2416 ◽  
Author(s):  
Linda J. Cote ◽  
Amyn S. Teja ◽  
Angus P. Wilkinson ◽  
Z. John Zhang
Keyword(s):  
Hydrothermal Synthesis ◽  
Elevated Temperatures ◽  
Metal Salt ◽  
Oxide Nanoparticles ◽  
Precipitation Reaction ◽  
Ambient Conditions ◽  
Magnetic Oxide ◽  
Synthesis Of Nanoparticles ◽  
Uniform Particles ◽  
Metal Salt Solution

The continuous hydrothermal synthesis of nanoparticles of two metal oxides (α–Fe2O3 and Co3O4) is described. Two variations of the technique were investigated, involving the precipitation reaction between a metal salt solution and a hydroxide solution at ambient conditions and at elevated temperatures. Elevated temperatures resulted in more uniform particles of α–Fe2O3 and Co3O4, although the actual sizes of the particles were apparently unaffected by the temperature. This behavior was attributed to the species present in solution and the solubilities of the cation(s), both of which were calculated via a thermodynamic model for the systems under study.

Carbon Nanotube Synthesis from Block Copolymer Deposited Catalyst

2017 ◽  
Vol 26 (03) ◽  
pp. 1740010
Author(s):  
K. Woods ◽  
J. Silliman ◽  
T. C. Schwendemann
Keyword(s):  
Carbon Nanotubes ◽  
Chemical Vapor Deposition ◽  
Carbon Nanotube ◽  
Block Copolymer ◽  
Vapor Deposition ◽  
Metal Salt ◽  
Chemical Vapor ◽  
Multi Wall Carbon Nanotubes ◽  
Metal Salt Solution ◽  
Carbon Nanotube Synthesis

A block copolymer/metal-salt solution was used to deposit metal nanoparticles on substrates, from which carbon nanotubes (CNTs) were grown in a chemical vapor deposition (CVD) chamber. Mono and hybrid catalysts of Fe, Ni, and Co-nitrates were tested, and separately Co, Ni, and Cu-chlorides. In both cases cobalt/cobalt-hybrids produced the highest density of multi-wall carbon nanotubes (MWCNTs). Slight vertical growth, though sparse, was observed after growth at 800°C from a nickel catalyst on single-crystal aluminium oxide (~130nm diameter).

Reduction of Nitrous Oxide in Diesel Engine using Metal Salt Macro-Emulsion

2017 ◽  
Vol 32 (3-4) ◽  
pp. 69
Author(s):  
S. Sendilvelan ◽  
K. Bhaskar
Keyword(s):  
Diesel Engine ◽  
Metal Salt ◽  
Hydrocarbon Emissions ◽  
Oxides Of Nitrogen ◽  
Brake Thermal Efficiency ◽  
Performance And Emission ◽  
Advantages And Disadvantages ◽  
Metal Salt Solution ◽  
Notable Increase ◽  
Span 80

In this paper four new emulsions were prepared by mixing 0.5% tween 85 and 0.5% span 80 with diesel fuel using 10% aqueous metal salt solution with concentration of 0.4 mol/dm<sup>3</sup>. The performance and emission tests were carried out by using these fuels in single cylinder water cooled diesel engine. The results were compared with that of diesel and comparison graphs were plotted to analyze the advantages and disadvantages of using the new emulsions over diesel. This report analyze on the effect of new emulsion fuels combustion on brake thermal efficiency, brake specific fuel consumption, oxides of nitrogen and hydrocarbon emissions. The emulsions used for analysis achieved reasonable reductions in the NOx emission from diesel engines without requiring any retrofitting of the engines and also there was no notable increase in emission of other pollutants.

Chemical modification of the bacterial wall to determine sites of metal deposition

1978 ◽  
Vol 36 (2) ◽  
pp. 350-351
Author(s):  
T. J. Beveridge
Keyword(s):  
Electron Scattering ◽  
Metal Salt ◽  
Metal Deposition ◽  
Suitable Model ◽  
X Ray Diffraction ◽  
Subtilis Cell ◽  
Thin Sections ◽  
X Ray ◽  
Section Data ◽  
Metal Impregnation

The Bacillus subtilis cell wall provides a protective sacculus about the vital constituents of the bacterium and consists of a collection of anionic hetero- and homopolymers which are mainly polysaccharidic. We recently demonstrated that unfixed walls were able to trap and retain substantial amounts of metal when suspended in aqueous metal salt solutions. These walls were briefly mixed with low concentration metal solutions (5mM for 10 min at 22°C), were well washed with deionized distilled water, and the quantity of metal uptake (atomic absorption and X-ray fluorescence), the type of staining response (electron scattering profile of thin-sections), and the crystallinity of the deposition product (X-ray diffraction of embedded specimens) determined.Since most biological material possesses little electron scattering ability electron microscopists have been forced to depend on heavy metal impregnation of the specimen before obtaining thin-section data. Our experience with these walls suggested that they may provide a suitable model system with which to study the sites of reaction for this metal deposition.

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