Results 31 to 40 of about 21,548 (233)

Synthesis of CNTs/CuO and its catalytic performance on the thermal decomposition of ammonium perchlorate

open access: yesJournal of Saudi Chemical Society, 2016
Copper oxide (CuO) nanoparticles were successfully deposited on carbon nanotubes’ (CNTs) surface via complex-precipitation method, the nanocomposite was characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray ...
Ping Cui, An-juan Wang
doaj   +1 more source

Total Syntheses of Agelamadin F and (±)‐Tauroacidin A, Enabled by NaClO2‐Mediated Coupling Reactions of Oroidin and Amines

open access: yesChemistry – A European Journal, EarlyView.
Total syntheses of agelamadin F and (±)‐tauroacidin A were achieved by sodium chlorite (NaClO2)‐mediated oxidative C─N coupling. Nine C15–N–amino acid‐substituted oroidin derivatives were successfully prepared to demonstrate the applicability and versatility of this oxidative coupling reaction.
Ryosuke Hirozumi   +3 more
wiley   +1 more source

Solid propellant burn rate characterization: Effect of copper chromite blend with oxidiser and its storage

open access: yesFirePhysChem
This work details the study conducted on composite solid propellants with activated copper chromite (ACR) as burn catalyst for its burn rate change with time due to the interaction of ammonium perchlorate (AP) with ACR.
Sathiskumar PS   +3 more
doaj   +1 more source

Cyclic Voltammetric and Spectroelectrochemical Studies of Tris(5-amino-1,10-phenantroline)Iron(II) Polymer Films

open access: yesInternational Journal of Electrochemical Science, 2020
Tris(5-amino-1,10-phenantroline)iron(II) polymer films were prepared on glassy carbon electrodes and indium tin oxide (ITO) surfaces using cyclic voltammetry.
Kenneth L. Brown   +4 more
doaj   +1 more source

Thermal decomposition study of perchlorate-based metal-free molecular perovskite DAP-4 mixed with ammonium perchlorate

open access: yesCase Studies in Thermal Engineering, 2022
The molecular perovskite energetic materials (H2dabco)[NH4(ClO4)3] (DAP-4, H2dabco2+ = 1,4-diazabicyclo[2.2.2]octane-1,4-diium), limits its separate application in explosives duo to the severe negative oxygen balance.
Xiao-Jun Feng   +3 more
doaj   +1 more source

Preparing oxidizer coated metal fuel particles [PDF]

open access: yes, 1974
A solid propellant composition of improved efficiency is described which includes an oxidizer containing ammonium perchlorate, and a powered metal fuel, preferably aluminum or beryllium, in the form of a composite.
Shafer, J. I., Simmons, G. M.
core   +1 more source

Chemical Syntheses of 3′ and 5′ Phosphorylated Oligonucleotides: An Overview

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
This review provides an overview of the various chemical methods employed in the synthesis of oligonucleotides bearing a phosphate group at their 3′ or 5′ end. Notably, it presents modified phosphoramidites and supports developed for this purpose. Oligonucleotides (ON) with a phosphate monoester group at their 3′ or 5′ end have applications in many ...
Rémy Lartia
wiley   +1 more source

Study of Soot Parameters in the Process of Combustion of Condensed Systems

open access: yesMATEC Web of Conferences, 2016
In the present information presents the results of studies of the effect of dispersion of ammonium perchlorate on the content and nature of the soot formed in the process of burning of butyl-rubber propellants.
Promahov Vladimir V.   +2 more
doaj   +1 more source

Bis[2-(2-pyridylsulfanyl)ethyl]ammonium perchlorate

open access: yesActa Crystallographica Section E, 2010
The cation and anion of the title salt, C14H18N3S2+·ClO4−, lie on a twofold rotation axis. The cation is a W-shaped entity with the aromatic rings at the ends; the ammonium NH2+ group is a hydrogen-bond donor to the pyridyl N atoms ...
Guo-Qing Wang   +4 more
doaj   +1 more source

A review on the high energy oxidizer ammonium dinitramide: Its synthesis, thermal decomposition, hygroscopicity, and application in energetic materials

open access: yesDefence Technology, 2023
Ammonium dinitramide (ADN) is considered as a potential substitute for ammonium perchlorate in energetic materials due to its high density, positive oxygen balance, and halogen-free characteristics.
Fu-yao Chen   +10 more
doaj   +1 more source

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