Skip to main content

Fabrication of Polypyrrole Nanorod Arrays for Supercapacitor: Effect of Length of Nanorods on Capacitance

Buy Article:

$113.00 plus tax (Refund Policy)

Abstract:

Arrays of polypyrrole nanorods were fabricated using an anodized aluminum oxide (AAO) template for use as supercapacitors. Gold was deposited on one side of the AAO template by thermo-evaporation for use as an electrode and pyrrole was electrochemically polymerized, causing it to grow from the gold electrode into the AAO template. The length of the PPy nanorods was controlled by adjusting the applied charge, and nanorods with three different lengths were prepared: 1.2 m for 0.5 C·cm−2, 2.4 m for 1.0 C·cm−22, and 4.6 m for 2.0 C·cm−2. After the removal of the AAO template in alkali solution, a well-arranged polypyrrole (PPy) nanorod electrode structure having an extremely large surface area was produced. The morphology of the PPy nanorods was monitored by SEM. The capacitive performances of the PPy nanorod array electrodes were investigated by cyclic voltammetry (CV) as well as the galvanostatic charge/discharge test. Greatly enhanced capacity performance was observed in the nanorod electrodes. Also, a higher specific capacitance was observed in the longer nanorod electrode having a larger surface area.

Keywords: NANO-ARRAY; POLYPYRROLE; SPECIFIC CAPACITANCE; SUPERCAPACITOR; TEMPLATES

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2008.1066

Publication date: October 1, 2008

More about this publication?
  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • ingentaconnect is not responsible for the content or availability of external websites
asp/jnn/2008/00000008/00000010/art00026
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more