Ruthenium nanoparticles decorated curl-like porous carbons for high performance supercapacitors

Bih Show Lou, Pitchaimani Veerakumar, Shen Ming Chen, Vediyappan Veeramani, Rajesh Madhu, Shang Bin Liu

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

The synthesis of highly dispersed and stable ruthenium nanoparticles (RuNPs; ca. 2-3 nm) on porous activated carbons derived from Moringa Oleifera fruit shells (MOC) is reported and were exploited for supercapacitor applications. The Ru/MOC composites so fabricated using the biowaste carbon source and ruthenium acetylacetonate as the co-feeding metal precursors were activated at elevated temperatures (600-900°C) in the presence of ZnCl2 as the pore generating and chemical activating agent. The as-prepared MOC carbonized at 900°C was found to possess a high specific surface area (2522 m2 g-1) and co-existing micro- and mesoporosities. Upon incorporating RuNPs, the Ru/MOC nanocomposites loaded with modest amount of metallic Ru (1.0-1.5 wt%) exhibit remarkable electrochemical and capacitive properties, achiving a maximum capacitance of 291 F g-1 at a current density of 1 A g-1 in 1.0 M H2 SO4 electrolyte. These highly stable and durable Ru/MOC electrodes, which can be facily fabricated by the eco-friendly and cost-effective route, should have great potentials for practical applications in energy storage, biosensing, and catalysis.

Original languageEnglish
Article number19949
JournalScientific reports
Volume6
DOIs
Publication statusPublished - Jan 28 2016
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General

Fingerprint

Dive into the research topics of 'Ruthenium nanoparticles decorated curl-like porous carbons for high performance supercapacitors'. Together they form a unique fingerprint.

Cite this