TY  - JOUR
A1  - Helbig, Uta
A1  - Herbst, Kai
A1  - Roudenko, Jewgeni
A1  - Helbig, Jens
A1  - Barton, Bastian
A1  - Kolb, Ute
T1  - Carbon-doped titania as a precursor for titanate nanotubes
T2  - Journal of Materials Research
N2  - Carbon-doped titania was fabricated via carbothermal treatment in nitrogen–acetylene gas flow and further used as a precursor for multiwalled titanate nanotube (TNT) synthesis via alkaline hydrothermal route. Investigation of the reaction products after hydrothermal treatment of carbon-doped titania using Transmission electron microscopy, X-ray diffraction, and Brunauer–Emmett–Teller method shows the successful formation of TNTs. The presence of carbon was proved although the type of incorporation could not be certified. All samples show approximately the same carbon content before and after hydrothermal treatment. An increasing pretreatment temperature of titania precursor powders yields more secondary products in the nanotube samples, indicating lower reactivity of the titanium oxycarbide phase during hydrothermal treatment. In this study, TNTs with 6 wt% carbon and with the highest specific surface area of 340 m2/g were formed via hydrothermal treatment of carbon-doped titania precursor powder exposed to 700 °C during carbothermal pretreatment.
Y1  - 2018
UR  - https://opus4.kobv.de/opus4-ohm/frontdoor/index/index/docId/1524
SN  - 0884-2914
VL  - 33
IS  - 9
SP  - 1288
EP  - 1300
PB  - Springer Science and Business Media LLC
ER  -