Facile synthesis of molybdenum disulfide adorned heteroatom-doped porous carbon for energy storage applications

Somasundaram Chandra Kishore, Raji Atchudan, Suguna Perumal, Thomas Nesakumar Jebakumar Immanuel Edison, Ashok K. Sundramoorthy, Rajangam Vinodh, Muthulakshmi Alagan, Yong Rok Lee

Research output: Contribution to journalArticlepeer-review


The rising energy demand and fossil-fuel use, along with growing environmental pollution, need the creation and development of innovative, ecologically friendly, and renewable high-performance energy storage systems. The key requirements of sustainable translation of biomass waste into a cost-effective and high-performance supercapacitor have become a primary concern to overcome the existing pitfalls. The current work outlines the large-scale synthesis of greater energy density, quicker charging, and superior long-term supercapacitor electrodes using banana peel as a heteroatom-doped carbon (H-PC) precursor that is both sustainable and economical. Dried banana peel carbonized at 800 °C for 2 h under the argon atmosphere was homogeneously mixed 20 wt% of MoS2 by the dry-impregnation method. Few layers of MoS2-decorated H-PC (MoS2@H-PC) composite owning micro/mesoporous structure, and satisfactory surface area (210 m2 g−1) was fabricated as the active electrode material to examine the electrochemical properties. MoS2@H-PC exhibited significant faradaic reactions and electrostatic adsorption due to the presence of numerous electrochemical active sites leading to a profound specific capacitance of 408 F g−1 at a current density of 1 A g−1. Exploiting the unique heterostructure and the synergy of nitrogen atoms, MoS2, and carbon layers, MoS2@H-PC reveals impressive cyclic stability with 90% capacitance retention beyond 10,000 cycles. This study paves the path for the future development of high energy density and robust supercapacitors from various agricultural waste products and landfills. Graphical abstract: [Figure not available: see fulltext.].

Original languageEnglish
JournalJournal of Nanostructure in Chemistry
StateAccepted/In press - 2022


  • Banana peel
  • Biomass
  • Energy storage
  • Molybdenum disulfide
  • Porous carbon
  • Supercapacitor


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