Zobrazeno 1 - 10 of 17 pro vyhledávání: '"L. D. Kock"'
1
Synthesis of LiPF6 via a direct gas-solid reaction
Autor: M.D.S. Lekgoathi, L. D. Kock, J.P. le Roux
Publikováno v: Materialia. 2:214-217
A reaction between pressurised PF5 gas and LiF solid to form LiPF6 is shown to be possible. The reaction is characterized by slow kinetics, mainly due to mass-transfer limitations caused by the formation of a product layer, thus hindering further rea
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3d0ada83f011437b01a55007fc81331d
https://doi.org/10.1016/j.mtla.2018.07.018
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3
Thermal decomposition and vibrational spectroscopic aspects of pyridinium hexafluorophosphate (C 5 H 5 NHPF 6 )
Autor: M.D.S. Lekgoathi, L. D. Kock
Publikováno v: Journal of Molecular Structure. 1125:310-314
Thermal decomposition and vibrational spectroscopic properties of pyridinium hexafluorophosphate (C5H5NHPF6) have been studied. The structure of the compound is better interpreted as having a cubic space group, based on Raman and infrared vibrational
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2384b69ce41a7b772b3456d914aab756
https://doi.org/10.1016/j.molstruc.2016.06.078
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4
Effect of short and long range order on crystal structure interpretation: Raman and powder X-ray diffraction of LiPF6
Autor: L. D. Kock, M.D.S. Lekgoathi
Publikováno v: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 153:651-654
The structure of LiPF6 has been probed using Raman scattering as well as pXRD and the results are compared and contrasted. The conventional Bragg angle scattering pXRD determines that dry LiPF6 crystallizes in a trigonal structure (Space Group R-3 (1
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bf822d8cb5dfa615e5287be63f183bb9
https://doi.org/10.1016/j.saa.2015.09.025
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5
Critical analysis of the effect of transport phenomena and operational parameters on the performance of an intermediate-scale surface fluorination reactor
Autor: David Lokhat, Inbanathan Govender, Matthew Lasich, L. D. Kock, Deresh Ramjugernath
Publikováno v: Journal of Fluorine Chemistry. 237:109617
An intermediate-scale fluorination system, capable of undertaking fluorination at sub atmospheric pressure—up to 348 K under static and dynamic conditions—comprising a 112 L reactor was designed, constructed and commissioned. The fluorination sys
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::76a023b8c432f0018bd155c9df425436
https://doi.org/10.1016/j.jfluchem.2020.109617
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7
Helium gas permeability reduction of epoxy composite coatings by incorporation of glass flakes
Autor: O.C. Vorster, J. Karger-Kocsis, L. D. Kock, L.J. van Rooyen
Publikováno v: Journal of Membrane Science. 430:203-210
Glass flake modified epoxy coatings were formulated as a possible barrier coating to prevent or limit the leak of radioactive gases generated by irradiated graphite. Helium gas was chosen as the test gas. The reduction of the helium gas permeability
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0019fc6d8b197f5af9c75481652b4c1b
https://doi.org/10.1016/j.memsci.2012.11.083
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8
Solid state vibrational spectroscopy of anhydrous lithium hexafluorophosphate (LiPF6)
Autor: M.D.S. Lekgoathi, L. D. Kock, Philippus L. Crouse, B.M. Vilakazi
Publikováno v: Journal of Molecular Structure. 1026:145-149
The South African Nuclear Energy Corporation Ltd and the Fluorine Expansion Initiative (FEI) program of the Department of Science and Technology (Republic of South Africa).
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::75b6181829ae52d91c4816af8301fa0e
https://doi.org/10.1016/j.molstruc.2012.05.053
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9
Raman analysis of glaze on various archaeological shard samples and intact Ming plates
Autor: L. D. Kock
Publikováno v: Journal of Raman Spectroscopy. 44:97-101
Raman microscopy is used in the analysis of glaze on a number of samples that include blue and white ceramic shards, a tile from the Citadel of Algiers and intact Ming plates. The use of the glaze depth profiling method for the study of interfacial p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8c1f7ba31d78e749d6370de50e98ac36
https://doi.org/10.1002/jrs.4139
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10
The determination of percentage dissociation of zircon (ZrSiO4 ) to plasma-dissociated zircon (ZrO2 . SiO2 ) by Raman spectroscopy
Autor: J. T. Nel, J. B. Wagener, L. D. Kock, E. Snyders, M.D.S. Lekgoathi, J. L. Havenga
Publikováno v: Journal of Raman Spectroscopy. 43:769-773
Raman spectroscopy and multivariate calibration techniques are used to determine the percentage conversion of zircon (ZrSiO4) to plasma-dissociated zircon, ZrO2.SiO2 (PDZ). The integrated area of a consistent ZrO2 (monoclinic) Raman band at 477 cm–
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9362bf9f42216c9bad8fa9690fb0abba
https://doi.org/10.1002/jrs.3090
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