Synthesis and Properties of Ca3Co4-xCuxO9 (0≤x≤1.4)
Year: 2013
Type: article
Abstract: Ca3Co4xCuxO9 (0x1.4) misfit-layered thermoelectric oxides were prepared by traditional solid-state reaction method which cost less, operate easer, may produce Ca3Co4O9 on large scale. XRD study shows that we obtain Ca3Co4O9 major phase in series Ca3Co4xCuxO9 (0x1.4) samples which were sintered at the highest temperature 880°C for 8h by two steps. Metallographic microscopic analysis indicates that some samples grain size range at 2~4μm which were doped less Cu. Doping Cu in different way experiment suggests that Ca3Co4xCuxO9 (x=0.4) sample has lower electric resistivity while Ca3Co4O9+5%Cu samples resistivity increases, compared with Ca3Co4O9 (x=0). The article infers that Ca3Co4xCuxO9 (0x0.4) can decrease the electric resistivity of Ca3Co4O9.
Source: Advanced materials research
Authors: Yin Liang, Lei Wang, Kun Yu Zhao, Zhi Dong Li, Xue Lian Tang
Institution: Kunming University of Science and Technology
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W2241483741