• Home
  • UCSC journals portal
  • ANID repository
  • UCSC Thesis Repository
  • English
  • Español
  • Log In
    Have you forgotten your password?
  1. Home
  2. Productividad Científica
  3. Publicaciones Científicas
  4. Photothermic energy harvesting in reduced graphene oxide nanosheets intercalated with vanadium nitride as pseudocapacitive electrode
 
Options
Photothermic energy harvesting in reduced graphene oxide nanosheets intercalated with vanadium nitride as pseudocapacitive electrode
Morales-Montecinos, Daniela
Facultad de Ciencias
Ramakrishnan, Kiruthiga
Surabhi, Srivathsava
Rednam, Udayabhaskar
Jeong, Jong-Ryul
Jeyalakshmi, Kumaramangalam
Girish, Santhosh
Ramalinga Viswanathan, Mangalaraja
Karvembu, Ramasamy
10.1021/acsanm.4c01118
ACS Publications
2024
The photothermal energy conversion mechanism in pseudocapacitive nanoelectrodes endures temperature-enervated power dissipation due to self-heating, leading to rapid heating and cooling cycles during the redox reactions triggered by plasmonic excitation. Herein, we report on vanadium nitride (VN)-intercalated reduced graphene oxide (RGO) nanosheets (VN@RGO) as a photoresponsive pseudocapacitive electrode material. Finite-difference time-domain (FDTD) simulations were used to analyze the photothermal-driven localized self-heating considering the complex dielectric properties of VN@RGO. The effect of morphology and stoichiometry on the polarization-induced electric field intensity (|E|2), power absorption (Pabs), and current density (J) of the VN@RGO system has been systematically explored. Both the simulation and experimental results complement each other. This study delineates electrically coupled thermal attenuation in VN@RGO, overcoming the limitations related to potential modulation of the electrode material. VN@RGO exhibits excellent electrochemical performance in the half-cell and full-cell modes of a symmetric supercapacitor, achieving maximum specific capacitances of 276 and 56 F g–1 at a current density of 0.1 A g–1, respectively.
Transition metal nitrides
Reduced graphene oxide
Photothermal power absorption
FDTD simulations
Pseudocapacitive electrode
Historial de mejoras
Proyecto financiado por: