Titanium dioxide high aspect ratio nanoparticle hydrothermal synthesis optimization

• Autorzy: Paulina Półrolniczak , Mariusz Walkowiak
• Języki publikacji: EN

Abstrakty

EN

TiO2-B (bronze) nanowires were synthesized via simple hydrothermal treatment of commercial titanium dioxide nanopowder in aqueous NaOH. The reaction temperature, calcination temperature, reaction time, NaOH concentration, autoclave filing fraction and precursor were systematically varied to optimize the nanowire morphology. The crystal structure, morphology and particle size were investigated by XRD, SEM and TEM. The morphology and structure are sensitive to experimental conditions. A reaction temperature of at least 150°C and NaOH concentration at least 10 M are essential, but reaction time from 24 to 72 h makes little difference. Nanowires obtained at 150°C were 60-180 nm wide and 2-4 μm long, while those after treatment at 200°C were thinner (40-100 nm) and longer (2-6 μm). The relationship between reaction conditions and morphology is discussed and practical guidelines for titanium dioxide nanowire synthesis are suggested

EN

Słowa kluczowe

EN

titanium dioxide; nanowire; hydrothermal

• Czasopismo: Open Chemistry
• Rocznik: 2015
• Tom: 13
• Numer: 1

Daty

wydano

2015-01-01

otrzymano

2013-09-17

zaakceptowano

2014-05-25

online

2014-10-09

Twórcy

autor

Paulina Półrolniczak

• Central Laboratory of Batteries and Cells, Institute of Non-Ferrous Metals, Division in Poznan, 61-362 Poznan, Poland,

autor

Mariusz Walkowiak

• Central Laboratory of Batteries and Cells, Institute of Non-Ferrous Metals, Division in Poznan, 61-362 Poznan, Poland

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Identyfikatory

DOI

10.1515/chem-2015-0006