About: Catalytic Efficiency of Iron(III) Oxides in Decomposition of Hydrogen Peroxide: Competition between the Surface Area and Crystallinity of Nanoparticles

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Various iron(III) oxide catalysts were prepared by controlled decomposition of a narrow layer (ca. 1 mm) of iron(II) oxalate dihydrate, FeC2O4.2H2O, in air at the minimum conversion temperature of 175 °C. This thermally induced solid-state process allows for simple synthesis of amorphous Fe2O3 nanoparticles and their controlled one-step crystallization to hematite (R-Fe2O3). Thus, nanopowders differing in surface area and particle crystallinity can be produced depending on the reaction time. The phase composition of iron(III) oxides was monitored by XRD and 57Fe Mössbauer spectroscopy including in-field measurements, providing information on the relative contents of amorphous and crystalline phases. The gradual changes in particle size and surface area accompanying crystallization were evaluated by HRTEM and BET analysis, respectively. The catalytic efficiency of the synthesized nanoparticles was tested by tracking the decomposition of hydrogen peroxide. The obtained kinetic data gave an unconvention Various iron(III) oxide catalysts were prepared by controlled decomposition of a narrow layer (ca. 1 mm) of iron(II) oxalate dihydrate, FeC2O4.2H2O, in air at the minimum conversion temperature of 175 °C. This thermally induced solid-state process allows for simple synthesis of amorphous Fe2O3 nanoparticles and their controlled one-step crystallization to hematite (R-Fe2O3). Thus, nanopowders differing in surface area and particle crystallinity can be produced depending on the reaction time. The phase composition of iron(III) oxides was monitored by XRD and 57Fe Mössbauer spectroscopy including in-field measurements, providing information on the relative contents of amorphous and crystalline phases. The gradual changes in particle size and surface area accompanying crystallization were evaluated by HRTEM and BET analysis, respectively. The catalytic efficiency of the synthesized nanoparticles was tested by tracking the decomposition of hydrogen peroxide. The obtained kinetic data gave an unconvention (en)
Title	Catalytic Efficiency of Iron(III) Oxides in Decomposition of Hydrogen Peroxide: Competition between the Surface Area and Crystallinity of Nanoparticles Catalytic Efficiency of Iron(III) Oxides in Decomposition of Hydrogen Peroxide: Competition between the Surface Area and Crystallinity of Nanoparticles (en)
skos:prefLabel	Catalytic Efficiency of Iron(III) Oxides in Decomposition of Hydrogen Peroxide: Competition between the Surface Area and Crystallinity of Nanoparticles Catalytic Efficiency of Iron(III) Oxides in Decomposition of Hydrogen Peroxide: Competition between the Surface Area and Crystallinity of Nanoparticles (en)
skos:notation	RIV/61989592:15310/07:00004746!RIV10-MSM-15310___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(1M0512), Z(MSM6198959218)
http://linked.open...iv/cisloPeriodika	35
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	GREGOR, Čeněk Pechoušek, Jiří Heřmánek, Martin Zbořil, Radek Medřík, Ivo
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Palackého v Olomouci / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	412741
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/07:00004746
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Diesel exhaust-gas; iron-oxide; organic-compounds; nitrogen-oxides; carbon-monoxide; supported iron; oxidative dehydrogenation; simultaneous conversion; magnetic-properties; contaminated soils (en)
http://linked.open.../riv/klicoveSlovo	magnetic-properties Diesel exhaust-gas nitrogen-oxides simultaneous conversion supported iron contaminated soils organic-compounds oxidative dehydrogenation carbon-monoxide iron-oxide
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[0A82EDEDC481]
http://linked.open...i/riv/nazevZdroje	Journal of American Chemical Society
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Research center of powdered nanomaterials
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	129
http://linked.open...iv/tvurceVysledku	Heřmánek, Martin Pechoušek, Jiří Zbořil, Radek Medřík, Ivo Gregor, Čeněk
http://linked.open...n/vavai/riv/zamer	Komplexní sloučeniny a oxidy přechodných kovů s využitím v bioaplikacích a nanotechnologiích
issn	0002-7863
number of pages	8 (xsd:int)
http://localhost/t...ganizacniJednotka	15310

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