نتایج جستجو برای: particle cu

تعداد نتایج: 234829  

2015
Ling Gao Chao Pang Dafang He Liming Shen Arunava Gupta Ningzhong Bao

A series of novel hierarchical nanoporous microstructures have been synthesized through one-step chemical reduction of micron size Cu2O and Co3O4 particles. By controlling the reduction time, non-porous Cu2O microcubes sequentially transform to nanoporous Cu/Cu2O/Cu dented cubic composites and hollow eightling-like Cu microparticles. The mechanism involved in the complex structural evolution is...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

the nanoparticles of gold doped with various percentage of copper (cu 10%, 25%, 75%) were synthesized by wet-chemical method at room temperature. copper (ii) sulfate and gold (iii) chloride trihydride was taken as the metal precursor and ascorbic acid as a reducing agent and anhydride maleic as surfactant. the reaction is performed with high-speed stirring at room temperature under nitrogen atm...

2014
Chih-Yu Chung Chao-Hung Chu Mu-Tse Lee Chun-Ming Lin Su-Jien Lin

In this study, minor-addition elements such as Si, Co, Cr, W, Mo, and Ti were added to matrix to improve the wettability between the diamonds and Cu matrix. The pressureless liquid-phase sintering technique adopted in this study provides a low-cost method for producing diamond/Cu composites with high potential for industrial mass production. Thermal properties of the diamond/Cu-Ti composites fa...

A. Rahdar, M. Aliahmad Y. Azizi

The Cu doped NiO (NiO:Cu) nanoparticles were synthesized by co-precipitation method using NiCl2.6H2O, CuCl2.2H2O for Ni and Cu sources, respectively. Sodium hydroxide has been used as a precipitator agent. Effect of Cu doping agent on the structural and optical properties of nanostructures were characterized by XRD, SEM, AFM, spectrophotometry, FTIR a...

Journal: :International journal of pharmaceutics 2008
Mei Yang Guohui Cui Ming Zhao Chao Wang Lili Wang Hu Liu Shiqi Peng

The complexation of Cu(II) with previously synthesized thrombolytic peptides, Pro-Ala-Lys (6), Arg-Pro-Ala-Lys (7), Ala-Arg-Pro-Ala-Lys (8), Gly-Arg-Pro-Ala-Lys (9) and Gln-Arg-Pro-Ala-Lys (10), resulted in the formation of complexes, Cu(II)-(Pro-Ala-Lys) (6-Cu), Cu(II)-(Arg-Pro-Ala-Lys) (7-Cu), Cu(II)-(Ala-Arg-Pro-Ala-Lys) (8-Cu), Cu(II)-(Gly-Arg-Pro-Ala-Lys) (9-Cu) and Cu(II)-(Gln-Arg-Pro-Ala...

Journal: :The Annals of occupational hygiene 2009
Evangelia Demou Wendelin J Stark Stefanie Hellweg

Real-time size, mass and number particle concentrations, and emission rates in university laboratories producing nanoparticles by scalable flame spray pyrolysis are quantified. Measurements were conducted in four laboratories using various technological set-ups and during production of particles of a range of compositions with differing physical-chemical properties, from NaCl salt, BiPO(4), CaS...

2016
Adewale Adewuyi Fabiano Vargas Pereira

Nitrilotriacetic acid functionalized Adansonia digitata (NFAD) biosorbent has been synthesized using a simple and novel method. NFAD was characterized by X-ray Diffraction analysis technique (XRD), Scanning Electron Microscopy (SEM), Brunauer-Emmett-Teller (BET) surface area analyzer, Fourier Transform Infrared spectrometer (FTIR), particle size dispersion, zeta potential, elemental analysis (C...

2016
Sulena Pradhan Jonas Hedberg Eva Blomberg Susanna Wold Inger Odnevall Wallinder

ABSTRACT In this study, we elucidate the effect of different sonication techniques to efficiently prepare particle dispersions from selected non-functionalized NPs (Cu, Al, Mn, ZnO), and corresponding consequences on the particle dose, surface charge and release of metals. Probe sonication was shown to be the preferred method for dispersing non-inert, non-functionalized metal NPs (Cu, Mn, Al). ...

Journal: :Chemical communications 2011
Jixiang Fang Sergei Lebedkin Shengchun Yang Horst Hahn

We have demonstrated a new strategy to synthesize Au mesocages using polyhedral Cu(2)O templates. The obtained polyhedral Au mesocages show a strong shape effect in highly sensitive single-particle surface-enhanced Raman spectroscopy (sp-SERS).

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