This article is cited by 72 publications. Joseph E. Mondloch, Saim Özkar, Richard G. Finke. "Weakly Ligated, Labile Ligand" Nanoparticles: The Case of Ir(0)n·(H+Cl–)m.
When the size of materials is reduced to the micro/nanoscale, they often show unique properties, greatly broadening the application fields of materials. Ultrafine copper powder is widely used in the chemical, light industry, electronics and medicine fields because of its high activity, high specific surface area, high strength and excellent electrical …
The preparation of micron size copper powder with chemical reduction method was investigated. ... The glycerol process using copper acetate as starting compound yields copper powder having a ...
1. Introduction. Recently, with an increase in biodiesel demand worldwide, the production of glycerol, which is a byproduct of biodiesel, has also increased over the last decade. 1 Because biodiesel has more environmental and energy-efficient advantages than conventional fossil fuels, biodiesel production is expected to grow steadily in the future …
DOI: 10.1016/S1005-8850(06)60053-4 Corpus ID: 137294780; Preparation of fine copper powders and their application in BME-MLCC @article{Wu2006PreparationOF, title={Preparation of fine copper powders and their application in BME-MLCC}, author={Songping Wu and Hao-li Qin and Pubo Li}, journal={Journal of University of …
A copper sol is usually synthesized by the reduction of a copper precursor with a suitable reducing agent in the presence of a stabilizer. There are few reports regarding the preparation of copper …
A copper sol is usually synthesized by the reduction of a copper precursor with a suitable reducing agent in the presence of a stabilizer. There are few reports regarding the preparation of copper nanoparticles in glycerol without using a stabilizing agent, but at elevated temperatures.
It involves reduction of copper salts by glycerol under atmospheric conditions at a temperature below 240°C. The powders produced by this process have been characterized by X-ray diffraction, chemical composition, BET surface area …
Key takeaway: 'Nanocrystalline copper powder can be prepared by reducing copper salt in glycerol, resulting in pure, dispersive, spherical particles with a size less than 60 nm.'
Sinha, A., & Sharma, B. . (2002). Preparation of copper powder by glycerol process. Materials Research Bulletin, 37(3), 407–416. doi:10.1016/s0025-5408(01)00819-4
High dispersive copper nanoparticles were prepared by chemical reduction method using potassium borohydride as reducing agent. The effects of reactant ratio, concentration of CuSO 4, reaction temperature, and dispersant on the size of product and conversion rate were studied.The morphologies of copper nanoparticles were …
A simple, least energy intensive, efficient, low temperature chemical process for the production of copper powder of narrow size distribution is described. It involves …
The preparation of ultrafine copper powder with chemical reduction method was investigated. Ascorbic acid was employed as reducing agent. Reaction of CuSO 4 ·5H 2 O with ascorbic acid at 70 °C gives polyhedron monodispersed ultrafine copper powder. The copper powder having excellent dispersibility was prepared when the pH value …
Semantic Scholar extracted view of "Preparation of micron size copper powder with chemical reduction method" by Wu Songping et al. ... A facile polyol process for producing copper powders with controllable size is described here. ... Preparation of copper powder by glycerol process. A. Sinha B. Sharma. Materials Science, Chemistry. 2002; 71.
Sinha, A., & Sharma, B. . (2002). Preparation of copper powder by glycerol process. Materials Research Bulletin, 37 (3), 407–416. doi:10.1016/s0025-5408 (01)00819-4.
X-ray powder diffraction (XRPD) data were collected at room temperature with X'Pert PRO θ-θ powder diffractometer with parafocusing Bragg-Brentano geometry using CuKα radiation (λ = 0.15418 nm, U = 40 kV, I = 30 mA). ... Preparation process and characterization of samples. Copper NPs were reduced in situ from copper(II) nitrate by …
The purity of the powder produced by the process depends on the starting compound of copper. The glycerol process using copper acetate as starting compound yields copper powder having a purity of ...
The preparation of fine copper powders by chemical reduction method was investigated. The reaction of [Cu(NH 3) 4] 2+ complex with hydrazine hydrate gives spherical monodispersed fine copper powders. The spherical copper powder with a uniform size of 3.5 ± 0.5 μm was processed to obtain flake copper powder having a …
A simple, least energy intensive, efficient, low temperature chemical process for the production of copper powder of narrow size distribution is described. It involves reduction of copper salts by glycerol under atmospheric conditions at a temperature below 240 o C. The powders produced by this process have been characterized by X-ray diffraction, …
High purity fine silver powder with uniform particle morphology was prepared through glycerol process. The process involves reduction of silver nitrate by glycerol under atmospheric conditions at a temperature below 175°C. Glycerol, din this process, acts as a solvent as well as a reducing agent. The powders prepared through this process were …
The mixture of copper chloride (2.68 g), sodium hydroxide (1.90 g) and glycerol (57.74 ml) was stirred using magnetic stirrer at constant rate of 1000 rpm and constant temperature of 160 °C for about 17 min to obtain 1 g of pure copper powder. The visual appearance of the solution changed color from blue to reddish orange indicating …
The purity of the powder produced by the process depends on the starting compound of copper. The glycerol process using copper acetate as starting compound yields copper powder having a purity of ...
A novel chemical process for producing hydrophobic nano-copper particles with satisfied anti-oxidation property is described here. The resultant particles have been characterized by X-ray diffraction, size distribution analysis and SEM, TEM observation. Well-dispersed nano-copper particles with c.a. 30 nm in diameter were obtained from the water/organic …
DOI: 10.1016/J.JMATPROTEC.2008.03.010 Corpus ID: 136000276; Preparation of micron-sized flake copper powder for base-metal-electrode multi-layer ceramic capacitor @article{Wu2009PreparationOM, title={Preparation of micron-sized flake copper powder for base-metal-electrode multi-layer ceramic capacitor}, author={S. P. Wu and R. Y. Gao …
Preparation of silver powder through glycerol process AMIT SINHA* and B P SHARMA Powder Metallurgy Division, Bhabha Atomic Research Centre, Vashi Complex, Navi Mumbai 400 705, India ... Sinha and Sharma (2002) described a process for pre-par ation of copper powder using glycerol. Glycerol has higher boiling point (290°C) as …
In most current processes aimed at producing biodiesel glycerol is still a co-product, and its valorisation is essential for the biorefinery. This work relies on previous results showing the dependence of the selective dehydration of glycerol to acetol (hydroxyacetone) on achieving a moderate acidity and the redox functionality of copper …
The almost completely dense copper was prepared by ultrafine copper powder prepared with both methods of electrolysis and novel water-gas atomization through cold isostatic pressing (CIP) and sintering under atmospheric hydrogen. Fine copper powder possesses the higher sintering driving force, thereby promoting …
In this study, cupric oxide powder was prepared from copper powder using a thermal oxidation method. The copper powder was produced by electroless deposition method …
Preparation of silver powder through glycerol process AMIT SINHA* and B P SHARMA Powder Metallurgy Division, Bhabha Atomic Research Centre, Vashi Complex, Navi Mumbai 400 705, India
High purity fine silver powder with uniform particle morphology was prepared through glycerol process. The process involves reduction of silver nitrate by glycerol under atmospheric conditions at a temperature below 175°C. Glycerol, din this process, acts as a solvent as well as a reducing agent. The powders prepared through this …
Sinha A, Sharma B P. Preparation of copper powder by glycerol process [J]. Materials Research Bulletin, 2002, 37(3), 407–416. Carroll K J, Reveles J U, Shultz M D, et al. Preparation of elemental Cu and ni nanoparticles by the Polyol Method: An experimental and theoretical approach [J]. The Journal of Physical Chemistry C, 2011, …
DOI: 10.1016/J.MATLET.2006.06.068 Corpus ID: 94317475; Preparation of fine copper powder using ascorbic acid as reducing agent and its application in MLCC @article{Wu2007PreparationOF, title={Preparation of fine copper powder using ascorbic acid as reducing agent and its application in MLCC}, author={Songping Wu}, …
3.2 Effect of electrolyte circulation rate. Electrolyte circulation rate has a moderate effect on the efficiency of the electrowinning process where the cathodic current efficiency is increased from 100.2% to 105.8% with the increase of the circulation rate from 3.37 to 6.92 dm 3 h −1.At the same time, the required energy decreased from 2.078 to …
A facile polyol process for producing copper powders with controllable size is described here. The copper powders have been readily synthesized by the reduction of copper (II) nitrate trihydrate with the solution of glycerol and sodium hydroxide. The X-ray diffraction, SEM and FESEM were used to characterize the obtained copper powders. …
The powder is well crystalline and contains oxygen, carbon, and hydrogen as impurity elements. The purity of the powder produced by the process depends on the starting compound of copper. The glycerol process using copper acetate as starting compound yields copper powder having a purity of 99.7%.
A novel process was developed to produce spherical copper powder for multilayer ceramic capacitors (MLCC). Spherical ultrafine cuprous oxide (Cu2O) powder was prepared by …
The spherical copper powder of 2.5 ± 0.3 μm in size, flake copper, glass frit and vehicle were mixed to prepare copper paste, which was fired in 910–920°C to obtain BME-MLCC (base metal ...
