Photoelectrochemical cells using metal-decorated carbon nanotube electrodes

Chang Ho Kim, Sung Sic Hwang, Jihun Kim, Kyung-hwa Yoo

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We fabricated the photoelectrochemical (PEC) cells using n-type TiO2 and metal (Pt, Pd)-decorated carbon nanotubes (CNTs) as an anode and a cathode, respectively. Photovoltaic effects were clearly observed. Compared with conventional PEC cell with Pt cathode, a larger photo-voltage was found in the PEC cells with the metal-decorated CNT cathode due to p-type semiconducting properties of CNTs. Additionally, we connected two PEC cells in series to decompose water into oxygen and hydrogen. Indeed, the connected PEC cells yielded the photo-voltage of about 1.35 V, which is larger than 1.23 V required for water splitting. This result demonstrates the possibility of hydrogen generation using the connected PEC cells without an external bias.

Original languageEnglish
Pages (from-to)153-157
Number of pages5
JournalCurrent Applied Physics
Volume10
Issue number1
DOIs
Publication statusPublished - 2010 Jan 1

Fingerprint

Photoelectrochemical cells
Carbon Nanotubes
Carbon nanotubes
Metals
carbon nanotubes
Electrodes
electrodes
cells
metals
Cathodes
cathodes
Hydrogen
Photovoltaic effects
photovoltaic effect
water splitting
Water
Electric potential
electric potential
hydrogen
Anodes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Kim, Chang Ho ; Hwang, Sung Sic ; Kim, Jihun ; Yoo, Kyung-hwa. / Photoelectrochemical cells using metal-decorated carbon nanotube electrodes. In: Current Applied Physics. 2010 ; Vol. 10, No. 1. pp. 153-157.
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Photoelectrochemical cells using metal-decorated carbon nanotube electrodes. / Kim, Chang Ho; Hwang, Sung Sic; Kim, Jihun; Yoo, Kyung-hwa.

In: Current Applied Physics, Vol. 10, No. 1, 01.01.2010, p. 153-157.

Research output: Contribution to journalArticle

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