The catalytic effect of NiO on thermal decomposition of nitrocellulose

Wei, Wenxian; Cui, Bingbing; Jiang, Xiaohong; Lu, Ludu

doi:10.1007/s10973-010-0695-y

Cited by 32 publications

(6 citation statements)

References 18 publications

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“…The reason why NO 2 and HCHO could not be detected may be attributed to their respective bands at 1630-1598 and 1771-1720 cm −1 overlapping the frequencies of H 2 O and HCOOH. Another Residue at 550 C mass (%) T max peak ( C) Mass loss (%) T max peak ( C) Mass loss (%) T max peak ( C) Mass loss (%) reason may be associated with the interaction between NO 2 and HCHO during the TGA-FTIR analysis, based on the following reaction [28][29]55 :…”

Section: Gel Permeation Chromatographymentioning

confidence: 99%

Selection of thermal, spectroscopic, spectrometric, and chromatographic methods for characterizing historical celluloid

Elsässer

Micheluz

Pamplona

et al. 2021

J of Applied Polymer Sci

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Celluloid in museum collections is very unstable; therefore, heritage professionals carry out research studies dedicated to understanding its decay and prolonging its lifetime. This paper addresses the need to compare and select suitable analytical methods for that purpose. Thermogravimetric analysis coupled with Fourier transform infrared spectroscopy, evolved gas analysismass spectrometry, double shotgas chromatography/mass spectrometry, and gel permeation chromatography (GPC) were employed to characterize the emission of gasses (decay products) and measure the molecular weight and camphor (plasticizer) content from unaged, artificially, and naturally aged celluloid samples. A pioneer GPC setup for the quantification of camphor was introduced for the first time in this study. Results demonstrated that GPC was the most suitable method for assessing material changes due to degradation. Both setups , for measuring molecular weight and quantifying camphor, appear promising for assessing the effect of conservation treatments and investigating the heterogeneous degradation of celluloid objects in future studies.

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Section: Gel Permeation Chromatographymentioning

confidence: 99%

Selection of thermal, spectroscopic, spectrometric, and chromatographic methods for characterizing historical celluloid

Elsässer

Micheluz

Pamplona

et al. 2021

J of Applied Polymer Sci

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“…It serves as an active component of the catalysts for the Suzuki cross-coupling, thermal decomposition of nitrocellulose, photocatalytic decomposition of methylene orange and methylene blue, etc. [ 7 , 8 , 9 ]. Another potential application of nickel oxide is its usage as an oxygen storage material in chemical looping processes [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation of the Nanostructured Ni-Mg-O Oxide System by a Sol–Gel Technique at Varied pH

et al. 2022

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In the present work, a series of two-component Ni-Mg-O oxide systems were prepared using a sol–gel technique at varied pH of hydrolysis procedure. The aqueous solutions of nitric acid or ammonia were added to control the pH values. The xerogel samples obtained after drying were analysed using a thermogravimetric approach. The oxide systems were characterized by a set of physicochemical methods (low-temperature nitrogen adsorption, X-ray diffraction analysis, scanning electron microscopy, UV-vis spectroscopy, and temperature-programmed reduction method). The thermal stability of the samples was examined in a testing reaction of CO oxidation in a prompt thermal aging regime. It was revealed that the pH value during the magnesium methoxide hydrolysis stage significantly affects the properties of the intermediate hydroxide and final oxide nanomaterials. The thermal decomposition of nitric acid or ammonia is accompanied by exothermal effects, which noticeably influence the textural characteristics. Moreover, the pH of the hydrolysing solution defines the strength of the nickel interaction with the MgO matrix. An increase in pH facilitates the formation of the NixMg1−xO solid solution with a higher amount of incorporated nickel, which is characterized by the reproducible broad temperature range of the hydrogen uptake and the enhanced thermal stability.

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“…Cellulose nitrate, known as nitrocellulose (NC), is one of a main components of gun powder and solid propellants [ 1 , 2 , 3 ]. It has been widely investigated owing its thermal decomposition features, such as the decomposition temperature, activation energy, and reaction decomposition mechanism, notably influence the combustion behavior and/or performance characteristics of NC-based formulations [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal Synthesis of Hematite Nanoparticles Decorated on Carbon Mesospheres and Their Synergetic Action on the Thermal Decomposition of Nitrocellulose

et al. 2020

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In this study, carbon mesospheres (CMS) and iron oxide nanoparticles decorated on carbon mesospheres (Fe2O3-CMS) were effectively synthesized by a direct and simple hydrothermal approach. α-Fe2O3 nanoparticles have been successfully dispersed in situ on a CMS surface. The nanoparticles obtained have been characterized by employing different analytical techniques encompassing Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy, X-ray diffraction (XRD) and scanning electron microscopy (SEM). The produced carbon mesospheres, mostly spherical in shape, exhibited an average size of 334.5 nm, whereas that of Fe2O3 supported on CMS is at around 80 nm. The catalytic effect of the nanocatalyst on the thermal behavior of cellulose nitrate (NC) was investigated by utilizing differential scanning calorimetry (DSC). The determination of kinetic parameters has been carried out using four isoconversional kinetic methods based on DSC data obtained at various heating rates. It is demonstrated that Fe2O3-CMS have a minor influence on the decomposition temperature of NC, while a noticeable diminution of the activation energy is acquired. In contrast, pure CMS have a slight stabilizing effect with an increase of apparent activation energy. Furthermore, the decomposition reaction mechanism of NC is affected by the introduction of the nano-catalyst. Lastly, we can infer that Fe2O3-CMS may be securely employed as an effective catalyst for the thermal decomposition of NC.

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The catalytic effect of NiO on thermal decomposition of nitrocellulose

Cited by 32 publications

References 18 publications

Selection of thermal, spectroscopic, spectrometric, and chromatographic methods for characterizing historical celluloid

Selection of thermal, spectroscopic, spectrometric, and chromatographic methods for characterizing historical celluloid

Preparation of the Nanostructured Ni-Mg-O Oxide System by a Sol–Gel Technique at Varied pH

Hydrothermal Synthesis of Hematite Nanoparticles Decorated on Carbon Mesospheres and Their Synergetic Action on the Thermal Decomposition of Nitrocellulose

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