Synthesis of Improved Catalytic Materials for High-Temperature Water-gas Shift Reaction

In this investigation, we report the preparation and characterization of Co-, Cu- and Mn-substituted iron oxide catalytic materials supported on activated carbon. Co-precipitation method and low temperature treatment were used for their synthesis. The influence of chemical composition, stoichiometry...

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Main Authors:	Zara P. Cherkezova-Zheleva, Katerina L. Zaharieva, Ivan B. Ivanov, Vasko D. Idakiev, Ivan G. Mitov
Format:	Article
Language:	English
Published:	Croatian Chemical Society 2015-12-01
Series:	Croatica Chemica Acta
Online Access:	http://hrcak.srce.hr/file/227385

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spelling	doaj-7904c2a9aef7412aa5cb98dd764f29992020-11-24T22:23:15ZengCroatian Chemical SocietyCroatica Chemica Acta0011-16431334-417X2015-12-0188447548010.5562/cca2789154304Synthesis of Improved Catalytic Materials for High-Temperature Water-gas Shift ReactionZara P. Cherkezova-Zheleva0Katerina L. Zaharieva1Ivan B. Ivanov2Vasko D. Idakiev3Ivan G. Mitov4Institute of Catalysis, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bldg. 11, Sofia 1113, BulgariaInstitute of Catalysis, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bldg. 11, Sofia 1113, BulgariaInstitute of Catalysis, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bldg. 11, Sofia 1113, BulgariaInstitute of Catalysis, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bldg. 11, Sofia 1113, BulgariaInstitute of Catalysis, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bldg. 11, Sofia 1113, BulgariaIn this investigation, we report the preparation and characterization of Co-, Cu- and Mn-substituted iron oxide catalytic materials supported on activated carbon. Co-precipitation method and low temperature treatment were used for their synthesis. The influence of chemical composition, stoichiometry, particle size and dispersity on their catalytic activity was studied. Samples were characterized in all stages of their co-precipitation, heating and spend samples after catalytic tests. The obtained results from room and low temperature Mössbauer spectroscopy were combined with analysis of powder X-ray diffraction patterns (XRD). They revealed the preparation of nano-sized iron oxide materials supported on activated carbon. Relaxation phenomena were registered also for the supported phases. The catalytic performance in the water-gas shift reaction was studied. The activity order was as follows: Cu<sub>0.5</sub>Fe<sub>2.5</sub>O<sub>4</sub> > Co<sub>0.5</sub>Fe<sub>2.5</sub>O<sub>4</sub> > Mn<sub>0.5</sub>Fe<sub>2.5</sub>O<sub>4</sub>. Catalytic tests demonstrated very promising results and potential application of studied samples due to their cost-effective composition.http://hrcak.srce.hr/file/227385
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Zara P. Cherkezova-Zheleva Katerina L. Zaharieva Ivan B. Ivanov Vasko D. Idakiev Ivan G. Mitov
spellingShingle	Zara P. Cherkezova-Zheleva Katerina L. Zaharieva Ivan B. Ivanov Vasko D. Idakiev Ivan G. Mitov Synthesis of Improved Catalytic Materials for High-Temperature Water-gas Shift Reaction Croatica Chemica Acta
author_facet	Zara P. Cherkezova-Zheleva Katerina L. Zaharieva Ivan B. Ivanov Vasko D. Idakiev Ivan G. Mitov
author_sort	Zara P. Cherkezova-Zheleva
title	Synthesis of Improved Catalytic Materials for High-Temperature Water-gas Shift Reaction
title_short	Synthesis of Improved Catalytic Materials for High-Temperature Water-gas Shift Reaction
title_full	Synthesis of Improved Catalytic Materials for High-Temperature Water-gas Shift Reaction
title_fullStr	Synthesis of Improved Catalytic Materials for High-Temperature Water-gas Shift Reaction
title_full_unstemmed	Synthesis of Improved Catalytic Materials for High-Temperature Water-gas Shift Reaction
title_sort	synthesis of improved catalytic materials for high-temperature water-gas shift reaction
publisher	Croatian Chemical Society
series	Croatica Chemica Acta
issn	0011-1643 1334-417X
publishDate	2015-12-01
description	In this investigation, we report the preparation and characterization of Co-, Cu- and Mn-substituted iron oxide catalytic materials supported on activated carbon. Co-precipitation method and low temperature treatment were used for their synthesis. The influence of chemical composition, stoichiometry, particle size and dispersity on their catalytic activity was studied. Samples were characterized in all stages of their co-precipitation, heating and spend samples after catalytic tests. The obtained results from room and low temperature Mössbauer spectroscopy were combined with analysis of powder X-ray diffraction patterns (XRD). They revealed the preparation of nano-sized iron oxide materials supported on activated carbon. Relaxation phenomena were registered also for the supported phases. The catalytic performance in the water-gas shift reaction was studied. The activity order was as follows: Cu<sub>0.5</sub>Fe<sub>2.5</sub>O<sub>4</sub> > Co<sub>0.5</sub>Fe<sub>2.5</sub>O<sub>4</sub> > Mn<sub>0.5</sub>Fe<sub>2.5</sub>O<sub>4</sub>. Catalytic tests demonstrated very promising results and potential application of studied samples due to their cost-effective composition.
url	http://hrcak.srce.hr/file/227385
work_keys_str_mv	AT zarapcherkezovazheleva synthesisofimprovedcatalyticmaterialsforhightemperaturewatergasshiftreaction AT katerinalzaharieva synthesisofimprovedcatalyticmaterialsforhightemperaturewatergasshiftreaction AT ivanbivanov synthesisofimprovedcatalyticmaterialsforhightemperaturewatergasshiftreaction AT vaskodidakiev synthesisofimprovedcatalyticmaterialsforhightemperaturewatergasshiftreaction AT ivangmitov synthesisofimprovedcatalyticmaterialsforhightemperaturewatergasshiftreaction
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Synthesis of Improved Catalytic Materials for High-Temperature Water-gas Shift Reaction

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