This study proposes a method to control the pore-forming process by performing preliminary mechanical activation of initial rice husk before carbonization. Preliminary leads loosening intercellular substance and its partial depolymerization, thereby increasing availability internal structure for pore formation during carbonization chemical activation. Using described above, nanoporous carbon was obtained with Brunauer–Emmett–Teller (BET)-calculated specific surface area 2713 m2/g, micropore...

The thermal decomposition of an ammonium dinitramide-based energetic compound was conducted for the first time using a dispersive inductively coupled plasma mass spectrometer, DTA-TG analysis, and pyrolysis at constant temperature. A liquid droplet injected over synthesized CuO catalytic particles deposited on lanthanum oxide-doped alumina. behavior ADN monopropellant revealed that in presence occurs two distinct steps, with majority ejected gases being detected real-time analysis DIP-MS...

In this study, we systematically study the efficient production method and electrochemical characteristics of activated carbons (AC) derived from rice husk (RH) walnut shell (WS). particular, effectiveness physical activation using carbon dioxide (CO2) was investigated compared with more common chemical potassium hydroxide (KOH). The results show that KOH–activated samples have remarkable specific capacities, reaching 157.8 F g−1 for RH 152 WS at 1 A g−1. However, rate capability AC obtained...

In recent years, the interest of researchers in developing materials that can solve problems energy scarcity and environmental pollution has led to a special focus on nanocellulose carbon nanotube-based composites. Nanocellulose outstanding characteristics promote highly ordered structures are renewable biodegradable. Carbon nanotubes, turn, have high surface area, strength electrical functionality. Their combined use holds promise for development composites with unique properties applicable...

Cupric oxide (CuO)/iridium (Ir) (1/5 wt%) catalysts deposited on carbon nanotubes (CNTs) are considered to be adequate active for ammonium dinitramide (ADN) decomposition. In this study, the decomposition of ADN ionic liquid was performed over CuO crystallites Ir CNTs, which were highly distributed due their high surface area. The catalyst activity evaluated by calculating turnover frequency (TOF) with different content amounts into surface. highest demonstrated at 1 wt% its...

This study explores the sorption capacity and field application of activated carbons (ACs) derived from plant residues for remediation oil-contaminated soils. ACs were prepared rice husks, reed stalks, pine sawdust wheat straw using two-stage pyrolysis chemical activation with potassium hydroxide. The structural physicochemical properties these analyzed BET surface area measurements, SEM analysis, Raman spectroscopy FTIR spectroscopy. Sorption experiments at room temperature demonstrated...

This study investigates the impact of nickel doping on thermal and combustion properties ammonium perchlorate/carboxymethyl cellulose (AP/CMC) composites. Through comprehensive SEM-EDS, FTIR, XRD, DSC, TGA, burning rate analyses, significant improvements in structural functional characteristics AP/CMC-Ni composite were observed compared to those pure AP AP/CMC The SEM-EDS analysis revealed that incorporation resulted thicker more irregular CMC fibers, indicating substantial morphological...

In this study, we present another approach to fabricating high-performance supercapacitor electrodes by combining activated carbon particles with nanotubes (AC/CNT). We synthesized from diverse biomass sources using a carbonization process and chemical activation KOH. By incorporating nanotubes, significantly augmented the electrode’s surface area, resulting in exceptional ion transport substantial increase specific capacitance. Our investigation reveals that optimized composition, 85:10:5...

This study investigates the characteristics of activated carbons derived from biomass plant residues: rice husk (OSL) genus Oryza, reed stalks (PhAC) Phragmites, pine sawdust (PSL) Pinus, and wheat straw (TAL) Triticum. Activation was carried out using potassium hydroxide, employing a two-stage pyrolysis under air. The examined influence activation temperature, duration, concentration impregnating agent, impregnation time. Characteristics such as sorbent porosity, bulk density, hydrocarbon...

Hydroxylammonium nitrate (HAN); as tentative candidate to replace hydrazine; has been extensively studied by several research groups. Indeed, its thermal decomposition in the liquid state performed via online and reel-time analysis. The advanced analysis carried out using direct insertion-probe mass spectrometry (DIP-MS) technique with higher temperature ramp of 128 C min-1. A pyrolizer was used decompose HAN solution at 280 detected gases can be analyzed online. On other hand, theoretical...

Carbon based materials are really an integral component of our lives and widespread research regarding their properties was conducted along this process. The addition dopants to carbon materials, either during the production process or later on, has been actively investigated by researchers all over world who looking into how doping can enhance performance overcome current difficulties. This study explores synthesis methods for nitrogen-doped focusing on advancements in adsorption different...

This study investigates the physical, mechanical, and structural characteristics of handmade paper samples derived from cellulose extracted grass clippings using two distinct methods as follows: (1) alkali treatment (2) followed by bleaching, coupled with incorporation barium sulfate a mineral filler. Our investigation revealed that samples’ densities, moisture contents, thicknesses varied within ranges 0.436 to 0.549 g/cm3, 5.60 2.51%, 0.41 0.50 mm, respectively. The tensile strength...

The activated carbon (AC) doped with CuO (AC-CuO) has been prepared and evaluated as a promising catalyst of energetic compositions. catalytic activity AC-CuO on ammonium nitrate/magnesium/nitrocellulose (AN/Mg/NC) composite investigated typical example. It shown that could greatly enhance the decomposition combustion performances composites. Thermal analyses indicate significant effects AN/Mg/NC by decreasing peak temperature from 261.4 to 209.0 °C, decreased activation energy 90.1 81.5 kJ...

In this study, carbonized apricot stones and rice husk were utilized as feedstock for the synthesis of CuO-loaded sorbents removal carbon dioxide (CO2) from gas mixtures. The specific surface area increased with increasing carbonization temperature, resulting in a porous structure enhanced sorption capacity. presence pores development porosity confirmed by SEM images. CuO nanoparticles well-dispersed on sorbents, particle sizes between 60‒100 nm. Chemical interactions acidic basic copper...

In this article, we present experimental results of the combustion processes and thermal analysis ammonium nitrate with carbonaceous materials. The was conducted by differential scanning calorimetry to investigate decomposition carbonized rice husks dextran. Differential data showed a tendency lowering activation energy oxidizer in presence calculated energies were range 65–82 kJ/mol. wave behavior studied high-pressure chamber recorded high-speed camera.

To improve the condensed-phase reaction rate of ε-CL-20, polydopamine (PDA)–nickel complex-coated multiwalled carbon nanotubes (CNTs) have been prepared and used as combustion catalysts. The PDA–Ni complex has in situ coprecipitated with ε-CL-20 by an antisolvent crystallization process its dimethyl sulfoxide (DMSO) solution. It shown that crystalline CL-20 composites included complexes are polygon-shaped a smooth surface average diameter 10–15 μm, whereas it is 140 μm for raw crystals....

The thermal decomposition of hydrogen peroxide (H2O2) as green energetic material has been performed over free noble metal-synthesized catalysts. A mass percent 30% (w/w) H2O2 liquid decomposed 1wt.% solid catalysts based on copper, cobalt and chromium metals. In this research work, the catalytic performance was carried out by measuring differential pressure (P) versus time at initial constant temperatures for first DTA-TG technique atmospheric pressure. obtained preliminary results showed...

Combustion of hydroxylammonium nitrate (95 wt.% HAN) ‒ water solution in presence high specific surface area activated carbons is investigated a constant-pressure bomb within the pressure range 1‒6 MPa. The linear burning rate increased for system HAN admixed with compared to those alone. Moreover, thermal decomposition wt.%) spiked was assessed by DTA – TG method. In carbons, ability trigger at lower temperature (86 °C vs 185 °C) observed. volatile products formed course HAN, were...