Improvement of physical characteristics of petroleum waxes by using nano-structured materials

Saber, Osama; Hefny, Nermen; Jaafari, Abdullah A. Al

doi:10.1016/j.fuproc.2010.12.015

Cited by 15 publications

(9 citation statements)

References 23 publications

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“…The good agreement between the values corresponding to successive diffractions by basal planes, i.e., d003=2d006=3d009, reveals nanolayered structures with highly packed stacks of brucite-like layers ordered along axis c. Dimension c is calculated as three times the spacing for planes (003), i.e., 2.19 nm. This c dimension is lower than that reported for natural and synthetic hydrotalcite, 2.31 nm [28].…”

Section: Appl Sci 2018 8 X For Peer Review 3 Of 12contrasting

confidence: 63%

“…These two bands overlapped and centered at 2217 cm −1 [29][30][31][32]. As can be noted in Figure 4, traces of carbonate anions were also detected by a weak peak at 1459 cm −1 [28]. This weak peak suggests that the IR absorption comes from the carbonates interacting weakly with LDH slabs or just adsorbed on the slab surface.…”

Section: Fourier Transform Infrared Spectroscopymentioning

confidence: 77%

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Development of Ti/Ni Nanolayered Structures to Be a New Candidate for Energy Storage Applications

2020

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Development of electrochemical supercapacitor electrode is the best way to improve the performance and conductivity of the alone materials and support energy storage devices. In this work, cyanate anions have used as building blocks to build series of nanolayered materials based on Ti/Ni layered double hydroxides (LDHs). The structural and morphological characteristics of the prepared Ti/Ni LDHs were examined using different techniques. The electrochemical supercapacitive behavior of the prepared LDHs was observed in the three-assembly electrochemical cell. These results showed that the optimized ratio of the nickel and titanium plays an important role to enhance the electrochemical performance of the LDHs. The optimized Ti/Ni LDHs, which has the highest content of titanium, showed the highest specific capacitance (675 F/g) value. In this trend, this LDH also retain a high percentage of the cyclic retention after long cyclic charging-discharging process. The enhanced performance could be due to the double layer structure, enough interplanar distance between the layer, and large number of exposed active site within the double layer structure of the LDHs. Finally, although there are no reports for the electrochemical supercapacitive performance of Ti/Ni LDHs in the literature, it is interesting to produce a new candidate for energy storage applications.

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Section: Appl Sci 2018 8 X For Peer Review 3 Of 12contrasting

confidence: 63%

Section: Fourier Transform Infrared Spectroscopymentioning

confidence: 77%

Development of Ti/Ni Nanolayered Structures to Be a New Candidate for Energy Storage Applications

2020

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“…Candle wax is generally composed of paraffin, which is made of heavy straight-chain hydrocarbons obtained from crude petroleum oil [15]. Crystalline paraffin waxes are solid and crystalline mixtures of hydrocarbons consisting of linear n-alkane and branched iso- and cyclo-alkanes with carbon lengths ranging from C 16 to C 30 and higher [16,17].…”

Section: Resultsmentioning

confidence: 99%

Single-step route to diamond-nanotube composite

et al. 2012

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Candle wax was used as a precursor for the production of a diamond-nanotube composite in a single step. The composite films were fabricated by sulfur-assisted hot-filament chemical vapor deposition technique. The morphology of the composite films was analyzed by scanning electron microscopy and transmission electron microscopy. Raman spectra of the films show characteristic diamond band at 1,332 cm−1, D-band around 1,342 cm−1, and graphitic G-band around 1,582 cm−1. The electron energy-loss spectroscopy recorded at the carbon K-edge region shows signature features of diamond and carbon nanotube in the fabricated material. The ability to synthesize diamond-nanotube composites at relatively low temperatures by a single-step process opens up new possibilities for the fabrication of nanoelectronic devices.

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“…The coordination of hydroxyl groups with di‐ and tri‐valent metals creates positive charges on their nanolayers that neutralize with anions among them. The main structure of these compounds is [MII 1‐x MIII x (OH) 2 ] x+ (A m ) x−/m .nH 2 O in which M(II), M(III) and A m are di‐, tri‐valent cations and the interlayered anions; respectively …”

Section: Introductionmentioning

confidence: 99%

“…The main structure of these compounds is [MII 1-x MIII x (OH) 2 ] x + (A m ) xÀ /m .nH 2 O in which M(II), M(III) and A m are di-, trivalent cations and the interlayered anions; respectively. [6] The combination among the metals within the nanolayers of LDH structure is more effective than that of the metals organized by conventional methods because the metals within the layered structures are homogeneously distributed at the atomic scale. [7] A wide range of species has intercalated into the interlayered space of the LDH structures by several techniques including co-precipitation, reconstruction, ion exchange, exfoliation and re-assembly.…”

Section: Introductionmentioning

confidence: 99%

Optimization Conditions for Crystal Growth of Novel Nanolayers, Nanohybrids and Nanocomposites Based on Cobalt, Zirconium, Titanium and Silicon

et al. 2019

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The present study has a triple aim for producing three novel nanostructures through incorporation of zirconium, titanium and silicon in the host layer of layered double hydroxides (LDH) beside cobalt. These four metals were designed in ordered structures for creating novel nanolayers inside LDH. By modifying these nanolayers with fatty acid, another novel nanohybrid material was produced. This nanohybrid contains 38% of inorganic species in addition to 62% of hydrocarbons fatty acid. In addition, the thermal treatment of the nanolayered structure converted the nanolayers of Co‐Si‐Zr‐Ti LDH to nanocomposites consisting of nanoparticles of cobalt oxide doped by triple dopants in an order manner: zirconium titanium and silicon. The crystals growth of Co‐Si‐Ti‐Zr LDH was studied from 9 h to 32 h through four stages. These stages were followed by different techniques. Finally, this study concluded that the nanolayered structure of Co‐Si‐Zr‐Ti, which is not yet published in the literature, could be formed with well‐crystallized phase. This novel 2D nanomaterial has positive impact to open the way for creating novel nanocomposites and nanohybrids.

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Improvement of physical characteristics of petroleum waxes by using nano-structured materials

Cited by 15 publications

References 23 publications

Development of Ti/Ni Nanolayered Structures to Be a New Candidate for Energy Storage Applications

Development of Ti/Ni Nanolayered Structures to Be a New Candidate for Energy Storage Applications

Single-step route to diamond-nanotube composite

Optimization Conditions for Crystal Growth of Novel Nanolayers, Nanohybrids and Nanocomposites Based on Cobalt, Zirconium, Titanium and Silicon

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