Method for Determining Crystal Grain Size by X‐Ray Diffraction

He, Kai; Chen, Nuofu; Wang, Congjie; Wei, Lishuai; Chen, Jikun

doi:10.1002/crat.201700157

Cited by 277 publications

(106 citation statements)

References 4 publications

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“…X-ray was generated at 40 mA and 40 kV and the scanning position ranged from 20–140° 2(θ). The crystal grain sizes were calculated using the Scherrer equation [ 46 ].…”

Section: Methodsmentioning

confidence: 99%

Application of Silver-Loaded Composite Track-Etched Membranes for Photocatalytic Decomposition of Methylene Blue under Visible Light

et al. 2021

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In this study, the use of composite track-etched membranes (TeMs) based on polyethylene terephthalate (PET) and electrolessly deposited silver microtubes (MTs) for the decomposition of toxic phenothiazine cationic dye, methylene blue (MB), under visible light was investigated. The structure and composition of the composite membranes were elucidated by scanning electron microscopy, energy dispersive spectroscopy, and X-ray diffraction technique. Under visible light irradiation, composite membrane with embedded silver MTs (Ag/PET) displayed high photocatalytic efficiency. The effects of various parameters such as initial dye concentration, temperature, and sample exposure time on the photocatalytic degradation process were studied. The decomposition reaction of MB was found to follow the Langmuir–Hinshelwood mechanism and a pseudo-first-order kinetic model. The degradation kinetics of MB accelerated with increasing temperature and activation energy, Ea, was calculated to be 20.6 kJ/mol. The reusability of the catalyst was also investigated for 11 consecutive runs without any activation and regeneration procedures. The Ag/PET composite performed at high degradation efficiency of over 68% after 11 consecutive uses.

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“…X-ray was generated at 40 mA and 40 kV and the scanning position ranged from 20–140° 2(θ). The crystal grain sizes were calculated using the Scherrer equation [ 46 ].…”

Section: Methodsmentioning

confidence: 99%

Application of Silver-Loaded Composite Track-Etched Membranes for Photocatalytic Decomposition of Methylene Blue under Visible Light

et al. 2021

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“…where χ (%) is crystallinity percentage, is the area of the amorphous halo, is the area of the main crystallization peak at 2 = 21.22°, and is the area of the secondary crystallization peak at 2 = 23.63°. In addition, the grain size of the different diffraction peaks corresponding to different crystal lamellar can be calculated by Scherrer equation [31]. The calculating formula is as follows:…”

Section: Results Of Xrd Measurementmentioning

confidence: 99%

“…Status of the current crystal structure of the specimens after thermal effects. In addition, the grain size of the different diffraction peaks corresponding to different crystal lamellar can be calculated by Scherrer equation [31]. The calculating formula is as follows:…”

Section: Results Of Xrd Measurementmentioning

confidence: 99%

Thermal Effect of Different Laying Modes on Cross-Linked Polyethylene (XLPE) Insulation and a New Estimation on Cable Ampacity

et al. 2019

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This paper verifies the fluctuation on thermal parameters and ampacity of the high-voltage cross-linked polyethylene (XLPE) cables with different insulation conditions and describes the results of a thermal aging experiment on the XLPE insulation with different operating years in different laying modes guided by Comsol Multiphysics modeling software. The thermal parameters of the cables applied on the models are detected by thermal parameter detection control platform and differential scanning calorimetry (DSC) measurement to assure the effectivity of the simulation. Several diagnostic measurements including Fourier infrared spectroscopy (FTIR), DSC, X-ray diffraction (XRD), and breakdown field strength were conducted on the treated and untreated specimens in order to reveal the changes of properties and the relationship between the thermal effect and the cable ampacity. Moreover, a new estimation on cable ampacity from the perspective on XLPE insulation itself has been proposed in this paper, which is also a possible way to judge the insulation condition of the cable with specific aging degree in specific laying mode for a period of time.Energies 2019, 12, 2994 3 of 22 insulation endured the most severe electrical and thermal stresses. These obtained specimens were all cleaned by alcohol to remove the surface impurities.

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“…Moreover, their narrow full widths at half maximum (FWHM) and strong intensities are indicative of excellent crystallinity [19]. The values of FWHM can be further utilized to calculate the average grain sizes through the Scherrer equation [20], by which both sizes for the DAST single crystals grown with and without the OA control were estimated to be similarly about 90 nm. It should be noted that the peak intensities of the DAST grown under the control of the OA at (002), (004), (006), and (008) face are 3.45, 1.76, 2.03, and 2.28 times greater than those of the DAST grown without the OA control, respectively (Figure 4).…”

Section: Resultsmentioning

confidence: 99%

Growth of 4-N,N-Dimethylamino-4'-N'-methyl-stilbazolium Tosylate (DAST) Organic Single Crystals Controlled by Oleic Acid

Wen

Zhou

et al. 2019

Crystals

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4-N,N-Dimethylamino-4'-N'-methyl-stilbazolium Tosylate (DAST) organic single crystals controlled by (Z)-Octadec-9-enoic acid (oleic acid, OA) was grown by a slow-cooling method. The as-grown DAST single crystals were systematically characterized by FTIR, X-ray diffraction, second harmonic generation, and UV-vis spectroscopy. Results indicate that addition of OA into the DAST solutions leads to the controlled growth of DAST single crystals and consequently, the crystal quality and optical properties can be modified. Particularly, the DAST crystals grown under the control of OA exhibit larger sizes, higher crystallinities, and better optical qualities with higher optical band gaps and lower defect density, compared with those grown in the absence of OA. These results are helpful for better understanding the controlled growth of DAST organic single crystals and modifying their properties for practical applications.

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Method for Determining Crystal Grain Size by X‐Ray Diffraction

Cited by 277 publications

References 4 publications

Application of Silver-Loaded Composite Track-Etched Membranes for Photocatalytic Decomposition of Methylene Blue under Visible Light

Application of Silver-Loaded Composite Track-Etched Membranes for Photocatalytic Decomposition of Methylene Blue under Visible Light

Thermal Effect of Different Laying Modes on Cross-Linked Polyethylene (XLPE) Insulation and a New Estimation on Cable Ampacity

Growth of 4-N,N-Dimethylamino-4'-N'-methyl-stilbazolium Tosylate (DAST) Organic Single Crystals Controlled by Oleic Acid

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