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The Use of Laser Induced Breakdown Spectroscopy (LIBS) to Study Catalyst Deactivation of V 2 O 5 /γ‐Al 2 O 3 as Compared to Inductively Coupled Plasma Optical Emission Spectrometry
Author(s) -
Keshavarz Mohammad Hossein,
Belyani Sahar,
Darbani Seyyed Mohammad Reza,
Tehrani Masoud Kavosh
Publication year - 2019
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201900163
Subject(s) - vanadium , catalysis , laser induced breakdown spectroscopy , analytical chemistry (journal) , spectroscopy , inductively coupled plasma atomic emission spectroscopy , inductively coupled plasma , acrolein , chemistry , materials science , plasma , inorganic chemistry , chromatography , organic chemistry , physics , quantum mechanics
Laser Induced Breakdown Spectroscopy (LIBS) method is introduced as a novel approach in this work to study catalyst deactivation of V 2 O 5 /γ‐‐Al 2 O 3 for gas‐phase dehydration of glycerol and producing acrolein. The LIBS results of V 2 O 5 /γ‐Al 2 O 3 samples are compared with those data that are obtained by Inductively Coupled Plasma Optical Emission Spectrometry (ICP‐OES). Experimental data of LIBS data specify that line intensities of vanadium are decreased by deactivation of V 2 O 5 /γ‐Al 2 O 3 catalyst. A comparison between the results of LIBS test as well as ICP‐OES analysis shows that the amount of vanadium is decreased in the catalyst. Moreover, coke formation changes the surface of the catalyst. The results of deactivation of V 2 O 5 /γ‐Al 2 O 3 are also compared with Pd/C catalyst deactivation.