Synthesis of CuxNi1−x alloy nanoparticles from double complex salts and investigation of their magnetoimpedance effects

RSC Advances ◽  
2015 ◽  
Vol 5 (88) ◽  
pp. 71601-71607 ◽  
Author(s):  
Seyed Abolghasem Kahani ◽  
Mansoure Shahrokh
Keyword(s):  
Reduction Method ◽  
Chemical Reduction ◽  
Alloy Nanoparticles ◽  
Chemical Reduction Method ◽  
Double Complex ◽  
Double Complex Salts ◽  
Complex Salts

This work is a novel study of the synthesis of CuxNi1−x nanoalloy from double complex salts by chemical reduction method.

Preparation and characterization of Cu–Co alloy nanoparticles from double complex salts by chemical reduction

2015 ◽  
Vol 39 (10) ◽  
pp. 7916-7922 ◽  
Author(s):  
Seyed Abolghasem Kahani ◽  
Mansoure Shahrokh
Keyword(s):  
Reduction Method ◽  
Chemical Reduction ◽  
Alloy Nanoparticles ◽  
Chemical Reduction Method ◽  
Double Complex ◽  
Double Complex Salts ◽  
Complex Salts

This work is a novel study of the synthesis of Cu–Co nanoalloy from double complex salts by chemical reduction method.

The peculiarities of Au–Pt alloy nanoparticles formation during the decomposition of double complex salts

2018 ◽  
Vol 740 ◽  
pp. 935-940 ◽  
Author(s):  
Yury V. Shubin ◽  
Aleksey A. Vedyagin ◽  
Pavel E. Plyusnin ◽  
Anastasiya K. Kirilovich ◽  
Roman M. Kenzhin ◽  
...  
Keyword(s):  
Alloy Nanoparticles ◽  
Double Complex ◽  
Double Complex Salts ◽  
Pt Alloy ◽  
Complex Salts

scholarly journals Spectroscopic Analysis of Au-Cu Alloy Nanoparticles of Various Compositions Synthesized by a Chemical Reduction Method

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Latif-ur-Rahman ◽  
Afzal Shah ◽  
Rumana Qureshi ◽  
Sher Bahadar Khan ◽  
Abdullah M. Asiri ◽  
...  
Keyword(s):  
Reduction Method ◽  
Chemical Reduction ◽  
Average Diameter ◽  
Alloy Nanoparticles ◽  
X Ray Diffraction ◽  
Chemical Reduction Method ◽  
Cu Alloy ◽  
Sem And Tem ◽  
Number Of Binding Sites ◽  
Free Energy Of Binding

Au-Cu alloy nanoparticles were synthesized by a chemical reduction method. Five samples having different compositions of Au and Cu (Au-Cu 3 : 1, Au-Cu 2 : 1, Au-Cu 1 : 1, Au-Cu 1 : 2, and Au-Cu 1 : 3) were prepared. The newly synthesized nanoparticles were characterized by electronic absorption, fluorescence, and X-ray diffraction spectroscopy (XRD). These alloy nanoparticles were also analyzed by SEM and TEM. The particle size was determined by SEM and TEM and calculated by Debye Scherrer’s equation as well. The results revealed that the average diameter of nanoparticles gets lowered from 80 to 65 nm as the amount of Cu is increased in alloy nanoparticles. Some physical properties were found to change with change in molar composition of Au and Cu. Most of the properties showed optimum values for Au-Cu alloy nanoparticles of 1 : 3. Cu in Au-Cu alloy caused decrease in the intensity of the emission peak and acted as a quencher. The fluorescence data was utilized for the evaluation of number of binding sites, total number of atoms in alloy nanoparticle, binding constant, and free energy of binding while morphology was deduced from SEM and TEM.

Cobaloxime-Based Double Complex Salts as Efficient and Versatile Catalysts for the Light-Driven Hydrogen Evolution Reaction

2020 ◽  
Author(s):  
Elisabeth Hofmeister ◽  
Jisoo Woo ◽  
Tobias Ullrich ◽  
Lydia Petermann ◽  
Kevin Hanus ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Systematic Study ◽  
Cobalt Complexes ◽  
Spectroscopic Studies ◽  
Double Complex ◽  
Double Complex Salts ◽  
Noble Metal Catalysts ◽  
Reduction Potentials ◽  
Complex Salts

Cobaloximes and their BF<sub>2</sub>-bridged analogues have emerged as promising non-noble metal catalysts for the photocatalytic hydrogen evolution reaction (HER). Herein we report the serendipitous discovery that double complex salts such as [Co(dmgh)<sub>2</sub>py<sub>2</sub>]<sup>+</sup>[Co(dmgBPh<sub>2</sub>)<sub>2</sub>Cl<sub>2</sub>]<sup>-</sup> can be obtained in good yields by treatment of commercially available [Co(dmgh)<sub>2</sub>pyCl] with triarylboranes. A systematic study on the use of such double complex salts and their single salts with simple counterions as photocatalysts revealed HER activities comparable or superior to existing cobaloxime catalysts and suggests ample opportunities for this compound class in catalyst/photosensitizer dyads and immobilized architectures. Preliminary electrochemical and spectroscopic studies indicate that one key advantage of these charged cobalt complexes is that the reduction potentials as well as the electrostatic interaction with charged photosensitizers can be tuned.

Antimicrobial Activity of Silver Nanoparticles Prepared Under an Ultrasonic Field

2011 ◽  
Vol 4 (3) ◽  
pp. 1491-1496
Author(s):  
Umadevi M ◽  
Rani T ◽  
Balakrishnan T ◽  
Ramanibai R
Keyword(s):  
Escherichia Coli ◽  
Antimicrobial Activity ◽  
Silver Nanoparticles ◽  
Reduction Method ◽  
Therapeutic Potential ◽  
Chemical Reduction ◽  
Ultrasonic Field ◽  
Great Promise ◽  
Chemical Reduction Method ◽  
E Coli

Nanotechnology has great promise for improving the therapeutic potential of medicinal molecules and related agents. In this study, silver nanoparticles of different sizes were synthesized in an ultrasonic field using the chemical reduction method with sodium borohydride as a reducing agent. The size effect of silver nanoparticles on antimicrobial activity were tested against the microorganisms Staphylococcus aureus (MTCC No. 96), Bacillus subtilis (MTCC No. 441), Streptococcus mutans (MTCC No. 497), Escherichia coli (MTCC No. 739) and Pseudomonas aeruginosa (MTCC No. 1934). The results shows that B. subtilis, and E. coli were more sensitive to silver nanoparticles and its size, indicating the superior antimicrobial efficacy of silver nanoparticles. 

scholarly journals Synthesis of Cu core Ag shell nanoparticles using chemical reduction method

2015 ◽  
Vol 6 (2) ◽  
pp. 025018 ◽  
Author(s):  
Dung Chinh Trinh ◽  
Thi My Dung Dang ◽  
Kim Khanh Huynh ◽  
Eric Fribourg-Blanc ◽  
Mau Chien Dang
Keyword(s):  
Reduction Method ◽  
Chemical Reduction ◽  
Chemical Reduction Method ◽  
Shell Nanoparticles
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