TY - JOUR
T1 - The migration of alkali metal (Na + , Li + , and K + ) ions in single crystalline vanadate nanowires
T2 - Rasch-Hinrichsen resistivity
AU - Lee, Yejung
AU - Ye, Byeong Uk
AU - Lee, Dong Kyu
AU - Baik, Jeong Min
AU - Yu, Hak Ki
AU - Kim, Myung Hwa
N1 - Funding Information:
This research was supported by the Basic Science Research Program through the National Research Foundation (NRF) of Korea funded by the Ministry of Science, ICT & Future Planning ( NRF-2016R1C1B1009030 and 2016R1D1A1B03934962 ) and by Basic Science Research Program through the National Research Foundation of Korea (NRF) by the Ministry of Education ( NRF-2018R1A6A1A03025340 ).
Funding Information:
This research was supported by the Basic Science Research Program through the National Research Foundation (NRF) of Korea funded by the Ministry of Science, ICT & Future Planning (NRF-2016R1C1B1009030 and 2016R1D1A1B03934962) and by Basic Science Research Program through the National Research Foundation of Korea (NRF) by the Ministry of Education (NRF-2018R1A6A1A03025340).
Publisher Copyright:
© 2019 Korean Physical Society
PY - 2019/4
Y1 - 2019/4
N2 - We report the synthesis of single crystalline alkali metal vanadate nanowires, Li-vanadate (Li 4 V 10 O 27 ), Na-vanadate (NaV 6 O 15 ), and K-vanadate (KV 4 O 10 ) and their electrical properties in a single nanowire configuration. Alkali metal vanadate nanowires were obtained by a simple thermal annealing process with vanadium hydroxides(V(OH) 3 ) nanoparticles containing Li + , Na + , and K + ions and further the analysis of the migration of charged particles (Li + , Na + , and K + ) in vanadate by measuring the conductivity of them. We found that their ionic conductivities can be empirically explained by the Rasch-Hinrichsen resistivity and interpreted on the basis of transition state theory. Our results thus indicate that the Li ion shows the lowest potential barrier of ionic conduction due to its small ionic size. Additionally, Na-vanadate has the lowest ion number per unit V 2 O 5 , resulting in increased distance to move without collision, and ultimately in low resistivity at room temperature.
AB - We report the synthesis of single crystalline alkali metal vanadate nanowires, Li-vanadate (Li 4 V 10 O 27 ), Na-vanadate (NaV 6 O 15 ), and K-vanadate (KV 4 O 10 ) and their electrical properties in a single nanowire configuration. Alkali metal vanadate nanowires were obtained by a simple thermal annealing process with vanadium hydroxides(V(OH) 3 ) nanoparticles containing Li + , Na + , and K + ions and further the analysis of the migration of charged particles (Li + , Na + , and K + ) in vanadate by measuring the conductivity of them. We found that their ionic conductivities can be empirically explained by the Rasch-Hinrichsen resistivity and interpreted on the basis of transition state theory. Our results thus indicate that the Li ion shows the lowest potential barrier of ionic conduction due to its small ionic size. Additionally, Na-vanadate has the lowest ion number per unit V 2 O 5 , resulting in increased distance to move without collision, and ultimately in low resistivity at room temperature.
KW - Alkali metal vanadate
KW - Ionic conductivity
KW - Nanowires
KW - Rasch-Hinrichsen resistivity
UR - http://www.scopus.com/inward/record.url?scp=85061616508&partnerID=8YFLogxK
U2 - 10.1016/j.cap.2019.02.007
DO - 10.1016/j.cap.2019.02.007
M3 - Article
AN - SCOPUS:85061616508
SN - 1567-1739
VL - 19
SP - 516
EP - 520
JO - Current Applied Physics
JF - Current Applied Physics
IS - 4
ER -