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All published articles 998

Measurement of Counter Electrode Potential during Cyclic Voltammetry and Demonstration on Molten Salt Electrochemical Cells

D. Sri Maha Vishnu, N. Sanil & K. S. Mohandas · International Research Journal of Pure and Applied Chemistry · 2017

In conventional cyclic voltammetry (CV) measurements, the potential of the working electrode (WE) is changed at a fixed scan rate w.r.t a reference electrode and the current response to the potential stimuli recorded. The current-potential data are in turn related to the redox be...

Open access Research Article 10.9734/IRJPAC/2017/37175

Computational Investigation on Dipyrido[3,2-a:2’,3’-c]-phenazine and Its Cobalt (II) Complex

Desalegn Nigatu & Ahmed M. Mohammed · International Research Journal of Pure and Applied Chemistry · 2017

A density functional theory with hybrid B3LYP method was modeled to predict the molecular properties of dipyrido[3,2-a:2’,3’-c]phenazine (1), and Co(II) complex of dipyrido[3,2-a:2’,3’-c]phenazine (2). The theoretical IR spectra of the studied compounds have been examined. In add...

Open access Research Article 10.9734/IRJPAC/2017/36481

Computational Study on 4-Amino-3-Hydroxynaphthalene-1-Sulfonic Acid (AHNSA)

Getachew Denbela & Ahmed M. Mohammed · International Research Journal of Pure and Applied Chemistry · 2017

A computational study on 4-amino-3-hydroxynaphthalene-1-sulfonic acid (AHNSA) has been carried out to investigate formation of poly-(AHNSA), and to obtain binding structures and energies of AHNSA-Ephedrine and AHNSA-Caffeine complexes. For this purpose, the DFT/B3LYP/6-31G(D) and...

Open access Research Article 10.9734/IRJPAC/2017/36284

Optimisation of Activated Carbon Preparation by Chemical Activation of Ayous Sawdust, Cucurbitaceae Peelings and Hen Egg Shells Using Response Surface Methodology

Ngakou Sadeu Christian, Ngomo Horace Manga, Tchuifon Tchuifon Donald Raoul & Anagho Solomon Gabche · International Research Journal of Pure and Applied Chemistry · 2017

Aims: Explore  the  effects  of  the mixture of  biomass materials: ayous sawdust, cucurbitaceae peelings and hen eggs shells in  the preparation  of  activated  carbon  by  chemical activation using  the  Methodology of Experimental Design. Study Design: Determination of the phy...

Open access Research Article 10.9734/IRJPAC/2017/36021

Photocatalytic and Physicochemical Properties of Pure and Variously CeO2-doped CuO-Fe2O3/Cordierite System

Abdelrahman A. Badawy & Shaimaa M. Ibrahim · International Research Journal of Pure and Applied Chemistry · 2017

A Mixture of 10wt% CuO-10wt% Fe2O3supported on cordierite and CeO2-doped (0.75-3 mol%) were prepared by wet impregnation. The effects of calcination temperatures (500, 700 and 900°C) and doping ratio on the crystalline phase, morophology, surface area were investigated by XRD, HR...

Open access Research Article 10.9734/IRJPAC/2017/35160

Optimization of Synthesis Process of 4-Methylquinazoline

Juan Liu, Yun Yang & Liangchun Li · International Research Journal of Pure and Applied Chemistry · 2017

4-Methylquinazoline was synthesized with 2-aminoacetophenone and formamide as the starting materials. The reaction conditions, including catalyst, ratio of substrates, temperature and time were optimized. Results showed that the optimal condition were as follows: Catalyst BF3-Et2...

Open access Research Article 10.9734/IRJPAC/2017/35918

Transesterification and Epoxidation of Oil Extracts from Selected Plants for Use as Bio-transformer Oil

A. O. Aliyu & Ahmad Tijjani · International Research Journal of Pure and Applied Chemistry · 2017

Transesterification and Epoxidation of oils extracted from seeds of five different plants, namely,  Jatropha, Moringa, Castor, Cotton and Shea was carried out using standard methods and characterized using American Society for Testing Material (ASTM) standard tests. The oils were...

Open access Research Article 10.9734/IRJPAC/2017/33506

Zinc Recovery from Spent Chemical Sorbent by Dry Chlorination and Electrodeposition from Chloride Solutions

G. De Micco, F. J. Pomiro, J. M. Grau & A. E. Bohe · International Research Journal of Pure and Applied Chemistry · 2017

Spent catalysts, chemical traps and sorbents are types of solid wastes generated worldwide, which contain potentially valuable or environmentally hazardous materials that need to be recovered before final deposition. Chlorination and electrolysis are unit processes applied in ext...

Open access Research Article 10.9734/IRJPAC/2017/35288

Photocatalytic Degradation of Carbon Monoxide (CO) Using Bi2O3 Modified TiO2 Photocatalyst

Nusaiba Islam, Sharmin Jahan Proma, Ashiqur Rahman & Ashok Kumar Chakraborty · International Research Journal of Pure and Applied Chemistry · 2017

TiO2 modified Bi2O3 nanoheterojunction was prepared using maleic acid as an organic linker. TiO2 phatocatalyst cannot perform photocatalytic reaction in the visible region. It only can work in the UV light region because of its band gap 3.2 eV. On the other hand Bi2O3 modified Ti...

Open access Research Article 10.9734/IRJPAC/2017/34828

Simple Synthesis of Sulfonyl Amidine-Containing Glucosidase Inhibitors by a Chemoselective Coupling Reaction Between D-Gluconothiolactam and Sulfonyl Azides

Muhammad Aswad, Junya Chiba, Takenori Tomohiro & Yasumaru Hatanaka · International Research Journal of Pure and Applied Chemistry · 2017

In this report, we describe a simple synthesis of gluconoamidinylsulfones as a new class of potential inhibitors toward glycan processing enzymes. Gluconoamidinylsulfones have a glucose-based sulfonyl amidine skeleton, thus would form a distorted half-chair conformation with posi...

Open access Research Article 10.9734/IRJPAC/2017/34259

Crystal Structure and Thermal Properties of Racemic SrC4H4O6•4H2O Single Crystals

T. Fukami, S. Hiyajyo, S. Tahara & C. Yasuda · International Research Journal of Pure and Applied Chemistry · 2017

Single crystals of racemic strontium tartrate tetrahydrate, SrC4H4O6·4H2O, were grown at 308 K by a gel method using silica gel as the medium of growth. Differential scanning calorimetry, thermogravimetric-differential thermal analysis, and X-ray diffraction measurements were per...

Open access Research Article 10.9734/IRJPAC/2017/34299

Effects of CaCO3 and Kaolin Filler Loadings on Some Mechanical Properties of Poly Urethane Foams

M. B. Dalen & S. D. Mador · International Research Journal of Pure and Applied Chemistry · 2017

In Nigeria, the foam industries basically use CaCO3 as filler in polyurethane (PU) foam manufacture. This has contributed to the high importation of this mineral, thereby, increasing dependency on imported goods. It is for this reason that, kaolin, a clay deposit commonly found o...

Open access Research Article 10.9734/IRJPAC/2017/31143