The Scherrer equation versus the 'Debye-Scherrer equation'
Uwe Holzwarth,Neil Gibson +1 more
TLDR
Paul Scherrer and Peter Debye developed powder X-ray diffraction together, but it was Scherrer who figured out how to determine the size of crystallites from the broadening of diffraction peaks.Abstract:
Paul Scherrer and Peter Debye developed powder X-ray diffraction together, but it was Scherrer who figured out how to determine the size of crystallites from the broadening of diffraction peaks.read more
Citations
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The Scherrer equation and the dynamical theory of X-ray diffraction
TL;DR: The diffraction peak profiles are calculated using the dynamical theory of X-ray diffraction for several Bragg reflections and crystallite sizes for Si, LaB6 and CeO2 using the Scherrer equation and it is shown that for crystals with linear absorption coefficients below 2117.3 cm(-1) the Scherrers equation is valid for crystallites with sizes up to 600 nm.
Journal ArticleDOI
ZnO Nanosheets Abundant in Oxygen Vacancies Derived from Metal-Organic Frameworks for ppb-Level Gas Sensing.
Hongye Yuan,Saif Abdulla Ali Alateeqi Aljneibi,Jiaren Yuan,Yuxiang Wang,Hui Liu,Jie Fang,Chunhua Tang,Xiaohong Yan,Hong Cai,Yuandong Gu,Stephen J. Pennycook,Jifang Tao,Dan Zhao +12 more
TL;DR: A novel approach to generate adjustable oxygen vacancies is demonstrated, through which the electronic structure of sensing materials can be fine-tuned and can facilitate the mass production, commercialization, and large-scale deployments of sensors with controllable morphology and superior sensing performance targeted for ultratrace gas detection.
Journal ArticleDOI
General Formation of Monodisperse IrM (M = Ni, Co, Fe) Bimetallic Nanoclusters as Bifunctional Electrocatalysts for Acidic Overall Water Splitting
TL;DR: In this paper, highly efficient overall water splitting is realized by utilizing ultrasmall, monodispersed Iridium (Ir)-based nanoclusters (NCs) as the candidate, via a surfactant-free, wet-chemical, and large-scalable strategy.
Journal ArticleDOI
Adsorptive removal of arsenate from aqueous solutions by biochar supported zero-valent iron nanocomposite: Batch and continuous flow tests.
TL;DR: Experiments showed that nZVI/BC had high As(V) removal capacity in a wide range of pH (3-8) andKinetic data revealed that equilibrium was reached within 1h and isotherm data showed that the Langmuir maximum adsorption capacity of the nZ VI/BC for As(v) at pH 4.1 was 124.5gkg-1.
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Engineered carbon (biochar) prepared by direct pyrolysis of Mg-accumulated tomato tissues: characterization and phosphate removal potential.
TL;DR: In this paper, an innovative method was developed to produce engineered biochar from magnesium enriched tomato tissues through slow pyrolysis in a N2 environment, which showed better sorption ability to phosphate (P) in aqueous solutions compared to the other four tomato leaves biochars.
References
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Book
Elements of X-ray diffraction
TL;DR: In this article, the authors present a chemical analysis of X-ray diffraction by Xray Spectrometry and phase-diagram Determination of single crystal structures and phase diagrams.
Journal ArticleDOI
Scherrer after sixty years: a survey and some new results in the determination of crystallite size
J. I. Langford,A. J. C. Wilson +1 more
TL;DR: In this article, the Scherrer constants of simple regular shapes have been determined for all low-angle reflections (h2 + k2 + l2 ≤ 100) for four measures of breadth.