scholarly journals Study of the Effect of Nitrate and Sulfate Solutions on the Properties of Copper Nanopowder Synthesized by Electrochemical Method

2021 ◽  
Vol 8 (2) ◽  
pp. 50-58
Author(s):  
Hind AL-Darkazali ◽  
Riyadh M. Noaman ◽  
Muthana Mahmmod ◽  
Raad Acopy ◽  
Akram Dawood
Keyword(s):  
Ascorbic Acid ◽  
Copper Sulfate ◽  
Electrolyte Solution ◽  
Electrochemical Method ◽  
Pure Copper ◽  
Cost Effective ◽  
Energy Dispersive Spectrum ◽  
Electrolyte Solutions ◽  
Copper Nitrate ◽  
Degree Of Crystallinity

The electrochemical method is efficient, cost effective, and environmentally friendly process. Copper nanopowder has been known, as a nontoxic, inexpensive, highly conductive, excellent microbial agent, catalytic, and sensors applicable. Copper nanopowder was prepared by an electrochemical method under various conditions. The effect of type and concentration of electrolyte solution, and the sample treated with thiourea and ascorbic acid on the size and purity of copper nanopowder was investigated. Two different salts copper: sulfate and nitrate aqueous solutions (CuSO4.5H2O), Cu(NO3)2.5H2O were used to produce copper nanopowder. The synthesized copper nanopowder was identified using X-ray diffraction (XRD), the scanning electron microscope (SEM), and Energy Dispersive Spectrum (EDS). The results of XRD patterns revealed a high degree of crystallinity, monophasic nature, and pure copper powder with no impurities or oxides observed for both electrolyte solutions after treated with 2 percent of ascorbic acid. It was confirmed that particle size at room temperature was as small as 25nm when the copper nitrate is used as an electrolyte solution compared to copper sulfate (41nm).

Molecular design of a novel ligand for Menshutkin complexation of Bi(iii) from aqueous acidic copper sulfate electrolyte solutions and experimental investigations

RSC Advances ◽  
2016 ◽  
Vol 6 (46) ◽  
pp. 39663-39674 ◽  
Author(s):  
Jyotsna S. Arora ◽  
Vilas G. Gaikar
Keyword(s):  
Copper Sulfate ◽  
Electrolyte Solution ◽  
Molecular Design ◽  
Selective Adsorption ◽  
Electrolyte Solutions ◽  
Experimental Investigations ◽  
Sulfate Electrolyte ◽  
Copper Electrolyte

A novel silica functionalised phen–arene adsorbent exhibits reversible and highly selective adsorption of Bi(iii) over Cu(ii) ions by Menshutkin complexation from an aqueous acidic copper electrolyte solution.

Surface charging parameters of charged particles in symmetrical electrolyte solutions

2020 ◽  
Vol 22 (35) ◽  
pp. 20123-20142
Author(s):  
Hadi Saboorian-Jooybari ◽  
Zhangxin Chen
Keyword(s):  
Charge Density ◽  
Surface Charge ◽  
Electrolyte Solution ◽  
Surface Charge Density ◽  
Potential Surface ◽  
Research Work ◽  
Charged Particles ◽  
Electrolyte Solutions ◽  
Surface Charging ◽  
Curvature Dependence

This research work is directed at development of accurate physics-based formulas for quantification of curvature-dependence of surface potential, surface charge density, and total surface charge for cylindrical and spherical charged particles immersed in a symmetrical electrolyte solution.

scholarly journals Dual colorimetric sensing of ascorbic acid and thyroxine using Ag–EGCG–CTAB via a DFT approach

RSC Advances ◽  
2021 ◽  
Vol 11 (58) ◽  
pp. 36698-36706
Author(s):  
Nirangkush Borah ◽  
Amlan Jyoti Kalita ◽  
Ankur kanti Guha ◽  
Manash R. Das ◽  
Chandan Tamuly
Keyword(s):  
Silver Nanoparticles ◽  
Ascorbic Acid ◽  
Epigallocatechin Gallate ◽  
Cost Effective ◽  
Colorimetric Sensing

In this work, a colorimetric approach for the detection of ascorbic acid and thyroxine was developed by synthesizing cost-effective silver nanoparticles (AgNPs) decorated with epigallocatechin gallate (EGCG) and CTAB.

The Effect of Preparation Temperature of Electrolytes on Undoped and Ag-Doped TiO2 Nanotube Structures

2016 ◽  
Vol 860 ◽  
pp. 7-11 ◽  
Author(s):  
Somkuan Photharin ◽  
Buagun Samran ◽  
Rinnatha Vongwatthaporn ◽  
Narongsak Kodtharin ◽  
Ramida Chaiyarat ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Electrolyte Solution ◽  
Pure Titanium ◽  
Silver Ions ◽  
Ammonium Fluoride ◽  
Electrolyte Solutions ◽  
Nanotube Arrays ◽  
X Ray Diffraction ◽  
Preparation Temperature ◽  
X Ray

In this work, we present the effect of preparation temperature of electrolytes for fabricating undoped and silver (Ag) doped titanium dioxide (TiO2) nanotubes by the electrochemical anodic oxidation of pure titanium sheets in electrolytes, mixtures of ethylene glycol (EG), ammonium fluoride (NH4F) and deionized water, that contain with different of silver ions. Heat treatment of electrolytes was carried out at 100 °C during preparation process. The morphology and structure of prepared nanotubes were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). The structures of TiO2 nanotubes obtained from heat treatment and non-heat treatment of electrolyte solutions and adding silver ions in electrolyte solution are similar. The nanotubes appear in arrays and the diameters of nanotubes were about 92 nm for non-heat treatment electrolyte solution and undoped TiO2 and about 102 nm for heat treatment electrolyte solution and all Ag-doped TiO2 nanotube arrays. When the concentration of silver nitrate (AgNO3) increases, the TiO2 nanotube arrays cracked and are not well arranged.

Ascorbic acid electrocatalytic activity in different electrolyte solutions using electrodeposited Co(OH)2

Ionics ◽  
2019 ◽  
Vol 25 (4) ◽  
pp. 1911-1920 ◽  
Author(s):  
Marcelo Rodrigues da Silva Pelissari ◽  
Edson Archela ◽  
Cesar Ricardo Teixeira Tarley ◽  
Luiz Henrique Dall’Antonia
Keyword(s):  
Ascorbic Acid ◽  
Electrocatalytic Activity ◽  
Electrolyte Solutions

scholarly journals Mint leaf derived carbon dots for dual analyte detection of Fe(iii) and ascorbic acid

RSC Advances ◽  
2019 ◽  
Vol 9 (21) ◽  
pp. 12070-12077 ◽  
Author(s):  
Varsha Raveendran ◽  
Adukamparai Rajukrishnan Suresh Babu ◽  
Neeroli Kizhakayil Renuka
Keyword(s):  
Ascorbic Acid ◽  
Carbon Dots ◽  
Cost Effective ◽  
Chemical Reagents ◽  
Analyte Detection ◽  
Mint Leaf

Highly luminescent carbon dots (CDs) are obtained from mint leaves adopting a simple and cost effective route devoid of additional chemical reagents and functionalization.

Polypyrrole Actuator Operating Characteristicsin Electrolyte Solution Mixed with Methanol

2013 ◽  
Vol 300-301 ◽  
pp. 1352-1355 ◽  
Author(s):  
Futo Tsumuji ◽  
Daiki Hoshino ◽  
Shou Ogihara ◽  
Zong Fan Duan ◽  
Yutaro Suzuki ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Electrolyte Solution ◽  
Marked Improvement ◽  
Electrolyte Solutions ◽  
Rapid Decrease ◽  
The Other ◽  
Other Hand ◽  
Deformation Behaviors

In this work, a PPy actuator was fabricated by galvanostatic electropolymerization. The electrochemical deformation behaviors of the PPy actuator were investigated in aqueous solutions of an electrolyte, lithium bis(trifluoromethanesulphonyl)imide (LiTFSI), containing different concentrations of methanol. Marked improvement of the actuating strain of approximately 9% was achieved when the actuator was driven by a potential between –1 and 1 V in the LiTFSI electrolyte containing 40 to 50% of methanol under a load stress of 0. 3 MPa. On the other hand, the actuator functioned in the electrolyte solutions containing more than 60% of methanol showed rapid decrease of the actuating strain and the electrochemical creep after repeated actuations. Possible mechanisms for these behaviors were discussed.

Measurement of mass transfer coefficients with an electrochemical method using dilute electrolyte solutions

1994 ◽  
Vol 28 (1) ◽  
pp. 9-16 ◽  
Author(s):  
Yutaka Sakakihara ◽  
Joseph R.V. Flora ◽  
Makram T. Suidan ◽  
Pratim Biswas ◽  
Masao Kuroda
Keyword(s):  
Mass Transfer ◽  
Electrochemical Method ◽  
Electrolyte Solutions ◽  
Transfer Coefficients ◽  
Mass Transfer Coefficients ◽  
Dilute Electrolyte Solutions
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