TY - JOUR
T1 - Activated Functionalized Carbon Nanotubes and 2D Nanostructured MoS2 Hybrid Electrode Material for High‐Performance Supercapacitor Applications
AU - Gupta, Honey
AU - Mothkuri, Sagar
AU - Mc Glynn, Ruairi
AU - Carolan, Darragh
AU - Maguire, Paul
AU - Mariotti, Davide
AU - Jain, P. K.
AU - Rao, Tata Narasinga
AU - Padmanabham, G.
AU - Chakrabarti, Supriya
PY - 2020/5/25
Y1 - 2020/5/25
N2 - Alkali-activated functionalized carbon nanotubes (AFCNTs) and 2D nanostructured MoS2 are investigated as a novel hybrid material for energy-storage applications. The nanoflower-like 2D MoS2 is grown on the surface of AFCNT using the controlled one-step hydrothermal technique. The activation of functionalized carbon nanotubes results in greater performance due to the improved surface area. The Brunauer–Emmett–Teller (BET) surface area of the AFCNTs is found to be 594.7 m2 g−1 which is almost 30 times of the as-prepared carbon nanotubes (CNTs). The improved surface area with attached hydroxyl and carboxylic functional groups helps in the attachment of MoS2 nanoflowers onto the AFCNT, thus reducing the interfacial resistance and providing an easy path for electron transfer. The electrochemical analysis shows a high specific capacitance of 516 F g−1 at 0.5 A g−1 with a corresponding energy density of 71.76 Wh kg−1, which is an encouraging reported value from AFCNT and MoS2 hybrid material. To the best of our knowledge, herein, the first report on AFCNTs and 2D MoS2 nanostructured hybrid electrode material for supercapacitor applications is provided, and promising results in terms of specific capacitance, energy density, and power density by boosting the properties of individual material are explained.
AB - Alkali-activated functionalized carbon nanotubes (AFCNTs) and 2D nanostructured MoS2 are investigated as a novel hybrid material for energy-storage applications. The nanoflower-like 2D MoS2 is grown on the surface of AFCNT using the controlled one-step hydrothermal technique. The activation of functionalized carbon nanotubes results in greater performance due to the improved surface area. The Brunauer–Emmett–Teller (BET) surface area of the AFCNTs is found to be 594.7 m2 g−1 which is almost 30 times of the as-prepared carbon nanotubes (CNTs). The improved surface area with attached hydroxyl and carboxylic functional groups helps in the attachment of MoS2 nanoflowers onto the AFCNT, thus reducing the interfacial resistance and providing an easy path for electron transfer. The electrochemical analysis shows a high specific capacitance of 516 F g−1 at 0.5 A g−1 with a corresponding energy density of 71.76 Wh kg−1, which is an encouraging reported value from AFCNT and MoS2 hybrid material. To the best of our knowledge, herein, the first report on AFCNTs and 2D MoS2 nanostructured hybrid electrode material for supercapacitor applications is provided, and promising results in terms of specific capacitance, energy density, and power density by boosting the properties of individual material are explained.
KW - activated functionalized carbon nanotubes
KW - hybrid electrodes
KW - molybdenum sulfide
KW - supercapacitors
UR - https://pure.ulster.ac.uk/en/publications/activated-functionalized-carbon-nanotubes-and-2d-nanostructured-m
UR - https://onlinelibrary.wiley.com/doi/abs/10.1002/pssa.201900855
UR - http://www.scopus.com/inward/record.url?scp=85083641601&partnerID=8YFLogxK
U2 - 10.1002/pssa.201900855
DO - 10.1002/pssa.201900855
M3 - Article
SN - 1862-6300
VL - 217
SP - 1
EP - 12
JO - Physica Status Solidi (A) Applications and Materials Science
JF - Physica Status Solidi (A) Applications and Materials Science
IS - 10
M1 - 1900855
ER -