304 stainless steel substrates with a trapezoidal groove are repaired by laser cladding with 316L stainless steel powders, and then the repaired surfaces are modified with cast WC powders by laser surface alloying. The microstructure of the cladded zone consists of columnar dendrites, clusters o...
ZnO nanostructures were grown on the stainless steel mesh substrates using an aqueous chemical growth method. The different additives (such as 1,3-diaminopropane and polyethyleneimine) can be used to control the morphology of ZnO nanostructures. ZnO nanowires exhibit very prominent green emissio...
The ZnO and ZnO/g-C3N4 composite films were deposited on stainless steel meshes having different apertures (370, 500, 780 and 1000 μm) using a simple cost-effective automated tubular nebulizer spray pyrolysis technique for photocatalytic degradation of organic pollutants. Photocatalytic studies...
Some of the primary barriers to widespread adoption of metal additive manufacturing (AM) are persistent defect formation in built components, high material costs, and lack of consistency in powder feedstock. To generate more reliable, complex-shaped metal parts, it is crucial to understand how f...
This work presents a novel modeling framework combining computational fluid dynamics (CFD) and cellular automata (CA), to predict the solidification microstructure evolution of laser powder bed fusion (PBF) fabricated 316 L stainless steel. A CA model is developed which is based on the modified ...
The development of inexpensive and competent electrocatalysts for high-efficiency hydrogen evolution reaction (HER) has been greatly significant to realize hydrogen production in large scale. In this paper, we selected the inexpensive and commercially accessible stainless steel as the conductive...
Supported catalysts with Co3O4 deposited on stainless steel wire meshes were prepared and examined in the total oxidation of ethanol. Combination of reactive magnetron sputtering of cobalt particles in oxidation Ar + O2 atmosphere and electrochemical formation of cobalt hydroxide precursors usin...
In this paper, we provide a novel type of micro-direct methanol fuel cell (μDMFC) fabricated with two stainless steel plates as metal current collectors. In order to improve cell performance, two sheets of stainless steel mesh (SSM) are added between the membrane electrode assembly (MEA) and cu...
Fifteen novel (3-chloro-5-(trifluoromethyl)pyridin-2-yloxy)phenyl containing Baylis-Hillman adduct derivatives were designed and synthesized. Evaluation of their biological activities showed that methyl 2-((3-(3-chloro-5-(trifluoromethyl)pyridin-2-yloxy)phenoxy)(phenyl)methyl)acrylate (2g) exhib...
Single crystal of a new Chalcone derivative “4-chloro-N-{3-[(2E)-3-(methoxyphenyl)prop-2-enoyl]phenyl}benzamide(CMPB)” was grown by slow evaporation method using Claisen-Schmidt and Schotten-Boumann Condensation reaction. XRD analysis was carried out to determine the structure, inter and intra...
This study represents an integrated approach towards understanding the vibrational, electronic, NMR, and structural aspects, and reactivity of 1-(4-chloro-phenyl)-3-phenyl-succinimide (CPPS). A detailed interpretation of the FT-IR, UV and NMR spectra were reported. The equilibrium geometry, bond...
Two pyridazine derivatives, namely, 6-phenyl-3(2H)-pyridazinone (P1) and 3-chloro-6-phenylpyrazine (P2) were investigated for their influence on mild steel corrosion in 0.5 M HCl, using Tafel polarization, electrochemical impedance spectroscopy (EIS), surface morphology, FTIR and UV–vis techniq...
In this work, the study of the6-chloro-4-hydroxy-3-phenyl pyridazine compound, (C10 H7 N2 O Cl with synonym 4-pyridazinol, 6-chloro-3-phenyl-), was verified experimentally by using the Fourier Transformed Infrared (FT-IR), micro-Raman and UV/vis (in N,N-dimethylformamide solvent) spectroscopies....
The indole nucleus is an important element of many natural and synthetic molecules with significant biological activity. Molecules bearing indole nucleus present diverse biological properties such as anti-tumor and anti-inflammatory activities, which can be associated both to DNA and protein int...
The synthesis of mononuclear complexes M(HL)2·nS [M = copper(II), nickel(II) and cobalt(II), S = solvent] and M′(HL)2OH·nS [M′ = iron(III) and vanadyl(V)] and of the binuclear complexes M2L2·nS [M = copper(II), nickel(II) and cobalt(II)] and Fe2L2(OH)2·H2O and (VO)2L2SO4·4H2O derived from...
The redox behavior of several gem-dihalo compounds has been examined at platinum and vitreous carbon electrodes in dimethylformamide. The reduction of 9,9-dichlorofluorene is initially an overall two-electron process which involves cleavage of chloride ion and the formation of 9-chlorofluorenyl ...
Chlorobenzotrifluorides (23), under typical Friedel - Crafts reaction conditions, react efficiently with aromatic compounds (1) to afford 1,1-dichlorodiphenylmethanes, (4) in excellent yield and purity.
The liquid phase chlorination of diphenylmethane (DPM) to 4,4′-dichlorodiphenylmethane (4,4′-DCDPM) is investigated at 333 K, under atmospheric pressure over a number of zeolite catalysts using sulfuryl chloride (SO2Cl2) as the chlorinating agent. The results obtained are compared with those o...
The gas chromatographic behavior of three O-n-alkyltyrosines, four Nt-n-alkyllysines and three Nt, Nt-di-n-alkyllysines was studied as their N-trifluoroacetyl n-bytyl ester (BTFA) derivatives on columns of OV-17 and Dexsil 300 GC. The retention indices and some other retention parameters are dis...
The use of protected amino acid chlorides for peptide coupling reactions has long been avoided due to the extensive racemization that commonly occurs during either the acid chloride formation or the coupling reaction itself. Conditions are described which allow N-trifluoroacetyl-protected amino ...
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