Microstructure and phase transformation behavior of doped nanostructured titania

Journal Article · Tue Jun 01 04:00:00 EDT 1999 · Materials Research Bulletin

DOI:https://doi.org/10.1016/S0025-5408(99)00113-0· OSTI ID:20005998

Nair, J; Nair, P; Mizukami, Fujio; Oosawa, Yoshinao; Okubo, Tatsuya

Microstructure and phase transformation behavior of doped nanostructured titania has been studied with a view to understanding the microstructural development for possible applications in the areas of catalysis and electronic ceramics. Sol-gel derived anatase titania gel was used as the precursor. Anatase-to-rutile transformation was studied using differential thermal analysis (DTA) and X-ray diffraction (XRD). The nanostructural development was monitored using field emission scanning electron microscopy (FE-SEM) and surface area measurements, Cu and Ni enhanced transformation as well as sintering. On the other hand, La retarded both transformation and densification. Co-doping of titania with La and Cu was also studied, to see whether co-coping affected the densification behavior of the La-doped samples.

• Research Organization: National Inst. of Materials and Chemical Research, Tsukuba, Ibaraki (JP)
• OSTI ID: 20005998
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 8 Vol. 34; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COPPER ADDITIONS
CRYSTAL-PHASE TRANSFORMATIONS
DOPED MATERIALS
ELECTRON MICROSCOPY
LANTHANUM ADDITIONS
MICROSTRUCTURE
THERMAL ANALYSIS
TITANIUM OXIDES
X-RAY DIFFRACTION