نتایج جستجو برای: bismuth nanoparticles

تعداد نتایج: 113562  

Journal: :Analytica chimica acta 2012
Nikolitsa Lezi Anastasios Economou Panagiotis A Dimovasilis Pantelis N Trikalitis Mamas I Prodromidis

In this article, a study of novel screen-printed electrodes bulk-modified with five potential bismuth precursor compounds (bismuth citrate, bismuth titanate, bismuth oxide, bismuth aluminate and bismuth zirconate) is presented for the determination of Cd(II) and Pb(II) by anodic stripping voltammetry. During the electrolytic deposition step, the precursor was reduced and served as the source of...

Journal: :Catalysts 2021

One of the challenges using nanoparticles as catalysts is presence reaction-disturbing stabilizers that surround nanoparticle surface. In this report, we demonstrate a method to synthesize stabilizer-free bismuth oxychloride (BiOCl) increase photocatalytic activity. This synthesis remarkably simple, involving only BiCl3 and deionized water. After heating an aqueous solution containing BiCl3, pl...

2008
Gehong Zeng Je-Hyeong Bahk John E. Bowers Hong Lu Joshua M. O. Zide Arthur C. Gossard Rajeev Singh Zhixi Bian Ali Shakouri Suzanne L. Singer Woochul Kim Arun Majumdar

We report the fabrication and characterization of segmented element power generator modules of 254 thermoelectric elements. The element is 1 mm × 1 mm in area, which consists of 300 μm thickness Bi2Te3 and 50 μm thickness ErAs:(InGaAs)1-x(InAlAs)x, so that each segment can work at different temperature ranges. Erbium arsenide metallic nanoparticles are incorporated to create scattering centers ...

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Bismuth titanate ceramic has been attracted as a lead-free ferroelectric due to its high Curie temperature in high temperature applications as well as high frequency applications. In this study, the effect of niobium oxide as an additive on the microstructure and dielectric properties of bismuth titanate ceramic was investigated. For this purpose, niobium oxide was added to bismuth titanate, sy...

Journal: :Journal of Optoelectronic and Biomedical Materials 2021

Bismuth oxide nanoparticle was synthesized by Hydrothermal method, with two different molar ratio of precipitating agent NaOH which decided the variations samples (1:5) and (1:6) added to observe its effect on structural, optical photocatalytic behaviour. So prepared bismuth nano particle characterized X-ray Diffractometer study about crystalline properties. The crystal size observed as 30.7 42...

Journal: :journal of the iranian chemical research 0
ali niazi department of chemistry, faculty of science, islamic azad university-arak branch, arak, iran shiva karimi afshar department of chemistry, faculty of science, islamic azad university-arak branch, arak, iran

a novel optical sensor has been proposed for sensitive determination of bismuth ion basedon immobilization of 4-(4-nitrophenylazo)-1-naphthol on a triacetylcellulose membrane.chemical binding of bismuth ions in solution with a 4-(4-nitrophenylazo)-1-naphtholimmobilized on the triacetylcelluse surface could be monitored spectrophotometrically. theoptode shows excellent response over wide concent...

1999
Richard Carlin Shawn A. Sapp Brinda B. Lakshmi Charles R. Martin

We report the fabrication of thermoelectric bismuth teUuride nanowires using the template synthesis method. A simple electrodeposition procedure was used to produce the nanowires within the pores of an alumina filtration membrane. The resulting bismuth telluride/alumina composite membranes constitute an array of thermoelectric nanowires surrounded by a thermally and electrically insulating matr...

Journal: :Organic & biomolecular chemistry 2013
Thierry Ollevier

This review covers uses of bismuth catalysts since 2005 with a special emphasis on the emerging applications of such catalysts. Low toxicity, low catalytic loading, synergistic effects with other catalysts, and some hydrocompatibility properties confer to bismuth salts major advantages. The expanding activity in the field clearly highlights the growing potential of bismuth catalysts. The articl...

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