Results 181 to 190 of about 327,422 (252)

Melamine-Modified Gold Nanoparticle–Based Direct Colorimetric Sensing of the Solid Rocket Propellant Ammonium Dinitramide (ADN) at Sub-Picomolar Levels

Analytical Letters
Ammonium dinitramide (ADN) is an environmentally friendly solid rocket propellant. In this work, a spectroscopic sensor based on gold nanoparticles (AuNPs) was developed to directly determine ADN at sub-picomolar level, involving the aggregation of ...
Fatma Mamatioğlu, Ayşem Üzer, R. Apak
semanticscholar   +1 more source

Thermal analysis of ammonium dinitramide (ADN)

Thermochimica Acta, 2000
Abstract Kinetic constants of decomposition were determined for ADN and prilled ADN by DSC and TG. Pressure DSC at 550 psi air or helium had similar kinetic constants for prilled ADN, namely 29 kcal/mol activation energy and a log frequency factor of ∼14.0 min−1.
openaire   +1 more source

MODELING THE PHOTOLYSIS OF AMMONIUM DINITRAMIDE IN NATURAL WATERS

Environmental Toxicology and Chemistry, 2000
Abstract Photolytic rate constants for the novel energetic compoundammonium dinitramide(ADNweredetermined in order to understand the fate of ADN in natural bodies of water. Quantum yields were measured between 290 and 400 nm using a lamp system, and these values were combined with absorption of light in a water column to model photolysis
Michelle K Beretvas, John P Hassett, Susan E Burns, Trisha M Basford   +3 more
openaire   +1 more source

Construction of S-scheme Bi2WO6/g-C3N4 heterostructure nanosheets with enhanced visible-light photocatalytic degradation for ammonium dinitramide.

Journal of Hazardous Materials, 2021
Photocatalysis technology is considered as a promising environmental remediation strategy. Herein, photocatalytic degradation of ammonium dinitramide (ADN, main component of propellant) was investigated over Bi2WO6/g-C3N4 (BWO/CN) heterostructure ...
Xiaoyan Lian, Wenhua Xue, Shuai Dong, E. Liu, Hui Li, Kangzhen Xu   +5 more
semanticscholar   +1 more source

Ammonium Dinitramide (ADN)–Prilling, Coating, and Characterization

Propellants, Explosives, Pyrotechnics, 2009
AbstractAmmonium dinitramide (ADN) is the promising oxidizer, which is expected to be applied, e.g., in solid rocket propellants. The manufacturing of spherical ADN particles (the so‐called ADN‐Prills) with useful morphology and reproducible quality is realized by means of the emulsion crystallization process.
Thomas Heintz, Heike Pontius, Jasmin Aniol, Christoph Birke, Karlfred Leisinger, Werner Reinhard   +5 more
openaire   +1 more source

Heat-release mechanism in ammonium dinitramide flame

Combustion, Explosion, and Shock Waves, 2007
To verify the adequacy of various models of heat release in ammonium dinitramide flame to real processes, chemical processes in products of thermal decomposition at a pressure of 10 torr and in ammonium dinitramide [ADN; NH4N(NO2)2] flame at a pressure of 0.4 to 60 atm are numerically simulated. The calculations are performed on the basis of a detailed
openaire   +1 more source

Experimental study on microwave-induced puffing, micro-explosion, and combustion characteristics of ammonium dinitramide-based liquid propellant droplets

The Physics of Fluids, 2023
Microwave ignition technology has the advantages of high ignition energy, stable ignition, and spatial multi-point ignition. These advantages make this technology promising for future application in green single-component propellants.
Yangyang Hou, Yusong Yu, Yong Li, Xuhui Liu, Xudong Wang   +4 more
semanticscholar   +1 more source

Thermal decomposition of ammonium dinitramide and mechanism of anomalous decay of dinitramide salts

Russian Chemical Bulletin, 1999
Thermal decomposition of ammonium dinitramide proceedsvia homolytic rupture of the N−NO2 bond and partially by the proton transfer reaction. The monomolecular decay of the anion to N2O and NO3 − in the solid state at 60 °C occurs with higher rates than those in the melt.
A. N. Pavlov, V. N. Grebennikov, L. D. Nazina, G. M. Nazin, G. B. Manelis   +4 more
openaire   +1 more source

Stabilization of ammonium dinitramide in the liquid phase

Russian Chemical Bulletin, 2000
The kinetics of accumulation of the main products of thermal decomposition of ammonium dinitramide in the melt was investigated. The isotope composition of nitrogen-containing gases evolved by the decomposition of 15NH4N(NO2)2 and NH4 15N(NO2)2 was found.
A. B. Andreev, O. V. Anikin, A. P. Ivanov, V. K. Krylov, Z. P. Pak   +4 more
openaire   +1 more source

Combustion of Ammonium Dinitramide, Part I: Burning Behavior

Journal of Propulsion and Power, 2006
The paper presents a detailed analysis of the ammonium dinitramide (ADN) combustion behavior depending on organic and inorganic additives, material of the surrounding shell, and the sample cross-section size. In spite of the fact that ADN is an oxidizer, combustible surroundings have been found to exert practically no effect on the burning rate of ADN ...
Valery P. Sinditskii, Viacheslav Y. Egorshev, Anton I. Levshenkov, Valery V. Serushkin   +3 more
openaire   +1 more source