TY - JOUR
T1 - Exfoliated MoS2 and MoSe2 Nanosheets by a Supercritical Fluid Process for a Hybrid Mg-Li-Ion Battery
AU - Truong, Quang Duc
AU - Kempaiah Devaraju, Murukanahally
AU - Nakayasu, Yuta
AU - Tamura, Naoki
AU - Sasaki, Yoshikazu
AU - Tomai, Takaaki
AU - Honma, Itaru
N1 - Funding Information:
This research work was financially supported by Japan Society for Promotion of Science (JSPS, grant no. PU15903), Funding Program for World-Leading Innovative R&D on Science and Technology (FIRST), and Core Technology Consortium for Advanced Energy Devices, Tohoku University, Japan. The work was partially supported by ALCA-SPRING (ALCA-Specially Promoted Research for Innovative Next Generation Batteries) from Japan Science and Technology Agency (JST). The authors thank Dr. Taniki for fruitful discussion.
Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/5/31
Y1 - 2017/5/31
N2 - The ultrathin two-dimensional nanosheets of layered transition-metal dichalcogenides (TMDs) have attracted great interest as an important class of materials for fundamental research and technological applications. Solution-phase processes are highly desirable to produce a large amount of TMD nanosheets for applications in energy conversion and energy storage such as catalysis, electronics, rechargeable batteries, and capacitors. Here, we report a rapid exfoliation by supercritical fluid processing for the production of MoS2 and MoSe2 nanosheets. Atomic-resolution high-Angle annular dark-field imaging reveals high-quality exfoliated MoS2 and MoSe2 nanosheets with hexagonal structures, which retain their 2H stacking sequence. The obtained nanosheets were tested for their electrochemical performance in a hybrid Mg-Li-ion battery as a proof of functionality. The MoS2 and MoSe2 nanosheets exhibited the specific capacities of 81 and 55 mA h g-1, respectively, at a current rate of 20 mA g-1.
AB - The ultrathin two-dimensional nanosheets of layered transition-metal dichalcogenides (TMDs) have attracted great interest as an important class of materials for fundamental research and technological applications. Solution-phase processes are highly desirable to produce a large amount of TMD nanosheets for applications in energy conversion and energy storage such as catalysis, electronics, rechargeable batteries, and capacitors. Here, we report a rapid exfoliation by supercritical fluid processing for the production of MoS2 and MoSe2 nanosheets. Atomic-resolution high-Angle annular dark-field imaging reveals high-quality exfoliated MoS2 and MoSe2 nanosheets with hexagonal structures, which retain their 2H stacking sequence. The obtained nanosheets were tested for their electrochemical performance in a hybrid Mg-Li-ion battery as a proof of functionality. The MoS2 and MoSe2 nanosheets exhibited the specific capacities of 81 and 55 mA h g-1, respectively, at a current rate of 20 mA g-1.
UR - http://www.scopus.com/inward/record.url?scp=85028993808&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85028993808&partnerID=8YFLogxK
U2 - 10.1021/acsomega.7b00379
DO - 10.1021/acsomega.7b00379
M3 - Article
AN - SCOPUS:85028993808
VL - 2
SP - 2360
EP - 2367
JO - ACS Omega
JF - ACS Omega
SN - 2470-1343
IS - 5
ER -