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090			_aB-18429
245	1	0	_aCharacterisation of halloysite by spectroscopy.
490	0		_vIn Developments in Clay Science. Elsevier., 7, p.115-136)., 2016
520	3		_aThis chapter provides an overview of results obtained by a variety of spectroscopic techniques. The most common techniques employed are infrared (IR)and Raman spectroscopy, which enable detailed observation of the behaviour of water and OH-groups and the type of H-bonds formed. The inner-surface OH-groups that normally form H-bonds with adjacent layers in the kaolins and form H-bonds with water in the interlayer in halloysite. Infrared emission spectroscopy showed that the four inner and inner-surface OH-groups were removed at different temperatures, at different rates, or both. A slight increase in the Al 2p binding energy observed in the spectra of X-ray photoelectron spectroscopy from kaolinite to halloysite reflects a change in the stacking order due to the interlayer water. The overall shape of the O 1s is indicative of two peaks associated with the oxygen atoms and with the OH-groups. A third, very weak peak was observed to be associated with interlayer water that is still present despite the ultrahigh vacuum.
650	1	4	_aHALLOYSITE
650	1	4	_aKAOLININFRARED SPECTROSCOPY
650	1	4	_aRAMAN SPECTROSCOPY
650	1	4	_aX-RAY PHOTOELECTRON SPECTROSCOPY
650	1	4	_aSOLID-STATE MAGIC-ANGLE-SPINNING NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY
650	1	4	_aELECTRON SPIN RESONANCE SPECTROSCOPY
650	1	4	_aMÖSSBAUER SPECTROSCOPY
650	1	4	_aCATHODELUMINESCENCE
700	1	2	_aKloprogge, J. T.
856	4	0	_uhttps://drive.google.com/file/d/1kgovnzB8hajhTlztKb9K4AgrXGdR8GFE/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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