A method to produce binderless supercapacitor electrode monoliths from biomass carbon and carbon nanotubes

B. N M Dolah, Mohamad Deraman, Mohd. Amir Radhi Othman, R. Farma, E. Taer, Awitdrus, N. H. Basri, I. A. Talib, Ramli Omar, N. S M Nor

Research output: Contribution to journalArticle

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Abstract

Binderless supercapacitor electrode monoliths (BSEM), prepared via the carbonization and activation of green monoliths from (a) self-adhesive carbon grains (SACG) from oil palm empty fruit bunch fibers, (b) SACG mixed with KOH, and (c) mixtures of SACG, KOH, and varying percentages of carbon nanotubes (CNTs), were characterized and evaluated in symmetrical supercapacitor cells. The porosity and the structural and microstructural characteristics of the electrodes are influenced by KOH and CNTs. The electrodes containing CNTs have a relatively lower specific capacitance but exhibit lower equivalent series resistance values and hence can sustain or improve the specific power of the cells, suggesting the need to optimize the quantity of CNTs used to sustain higher specific capacitance above 100 F/g. This innovative process uses inexpensive SACG with relatively small quantities of CNTs and KOH with no binder, and it directly combines both chemical (KOH) and physical (CO 2) activation during the production of BSEM.

Original languageEnglish
Pages (from-to)10-19
Number of pages10
JournalMaterials Research Bulletin
Volume60
DOIs
Publication statusPublished - 2014

Fingerprint

Carbon Nanotubes
electrochemical capacitors
biomass
Carbon nanotubes
Biomass
Carbon
carbon nanotubes
adhesives
Adhesives
Electrodes
electrodes
carbon
Capacitance
capacitance
Chemical activation
activation
Palm oil
fruits
carbonization
Carbonization

Keywords

  • A. Microporous materials
  • B. Chemical synthesis
  • C. Electrochemical measurements
  • D. Electrochemical properties
  • E. Energy storage

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

A method to produce binderless supercapacitor electrode monoliths from biomass carbon and carbon nanotubes. / Dolah, B. N M; Deraman, Mohamad; Othman, Mohd. Amir Radhi; Farma, R.; Taer, E.; Awitdrus; Basri, N. H.; Talib, I. A.; Omar, Ramli; Nor, N. S M.

In: Materials Research Bulletin, Vol. 60, 2014, p. 10-19.

Research output: Contribution to journalArticle

Dolah, B. N M ; Deraman, Mohamad ; Othman, Mohd. Amir Radhi ; Farma, R. ; Taer, E. ; Awitdrus ; Basri, N. H. ; Talib, I. A. ; Omar, Ramli ; Nor, N. S M. / A method to produce binderless supercapacitor electrode monoliths from biomass carbon and carbon nanotubes. In: Materials Research Bulletin. 2014 ; Vol. 60. pp. 10-19.
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