Trevor almeida (5 risultati)

Taschenbuch. Condizione: Neu. Hydrothermal Synthesis and Characterisation of Hematite Nanorods | A Closer Look at the One-dimensional Growth of Hematite Nanostructures | Trevor Almeida | Taschenbuch | 168 S. | Englisch | 2012 | LAP LAMBERT Academic Publishing | EAN 9783846589632 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Weakly-ferromagnetic hematite is a cheap, environmentally friendly and thermodynamically stable iron oxide, and 1D hematite nanorods (NRs) have been studied for a wide range of applications because their magnetic properties are greatly dependent on NR size and shape. Herein, the hydrothermal synthesis (HS) of hematite NRs is investigated using a combination of analytical techniques. Development of a novel, valve-assisted, hydrothermal pressure vessel, which allows for the rapid quenching of hydrothermal products as a function of reaction time and known reaction temperature, provided fundamental insight into the anisotropic crystal growth mechanism of the acicular hematite NRs. The hematite NR growth mechanism was found to be a two stage process: 1) the growth and dissolution of intermediate -FeOOH NRs, alongside precipitation of primary hematite nanoparticles (NPs); and 2) the agglomeration and coarsening of primary hematite NPs into hematite NRs. The investigation of rapidly quenched -FeOOH and hematite HS reaction products, heat treated in situ within a transmission electron microscope, provides direct evidence for the hydrothermal growth mechanism of lenticular hematite NRs. 168 pp. Englisch.…

Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Weakly-ferromagnetic hematite is a cheap, environmentally friendly and thermodynamically stable iron oxide, and 1D hematite nanorods (NRs) have been studied for a wide range of applications because their magnetic properties are greatly dependent on NR size and shape. Herein, the hydrothermal synthesis (HS) of hematite NRs is investigated using a combination of analytical techniques. Development of a novel, valve-assisted, hydrothermal pressure vessel, which allows for the rapid quenching of hydrothermal products as a function of reaction time and known reaction temperature, provided fundamental insight into the anisotropic crystal growth mechanism of the acicular hematite NRs. The hematite NR growth mechanism was found to be a two stage process: 1) the growth and dissolution of intermediate -FeOOH NRs, alongside precipitation of primary hematite nanoparticles (NPs); and 2) the agglomeration and coarsening of primary hematite NPs into hematite NRs. The investigation of rapidly quenched -FeOOH and hematite HS reaction products, heat treated in situ within a transmission electron microscope, provides direct evidence for the hydrothermal growth mechanism of lenticular hematite NRs.…

Condizione: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Almeida TrevorDr Trevor Almeida obtained his PhD in Materials Engineering and Materials Design from the University of Nottingham in 2010. Since then his primary research interests have been directed towards the processing, structure .…

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Weakly-ferromagnetic hematite is a cheap, environmentally friendly and thermodynamically stable iron oxide, and 1D hematite nanorods (NRs) have been studied for a wide range of applications because their magnetic properties are greatly dependent on NR size and shape. Herein, the hydrothermal synthesis (HS) of hematite NRs is investigated using a combination of analytical techniques. Development of a novel, valve-assisted, hydrothermal pressure vessel, which allows for the rapid quenching of hydrothermal products as a function of reaction time and known reaction temperature, provided fundamental insight into the anisotropic crystal growth mechanism of the acicular hematite NRs. The hematite NR growth mechanism was found to be a two stage process: 1) the growth and dissolution of intermediate ß-FeOOH NRs, alongside precipitation of primary hematite nanoparticles (NPs); and 2) the agglomeration and coarsening of primary hematite NPs into hematite NRs. The investigation of rapidly quenched ß-FeOOH and hematite HS reaction products, heat treated in situ within a transmission electron microscope, provides direct evidence for the hydrothermal growth mechanism of lenticular hematite NRs.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 168 pp. Englisch.…