Photoelectrochemical cells using metal-decorated carbon nanotube electrodes

Chang Ho Kim; Sung Sic Hwang; Jihun Kim; Kyung Hwa Yoo

doi:10.1016/j.cap.2009.05.011

Photoelectrochemical cells using metal-decorated carbon nanotube electrodes

Chang Ho Kim, Sung Sic Hwang, Jihun Kim, Kyung Hwa Yoo

Department of Physics

Research output: Contribution to journal › Article › peer-review

7 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 language	English
Pages (from-to)	153-157
Number of pages	5
Journal	Current Applied Physics
Volume	10
Issue number	1
DOIs	https://doi.org/10.1016/j.cap.2009.05.011
Publication status	Published - 2010 Jan

Bibliographical note

Funding Information:
This work has been financially supported by Korea Science and Engineering Foundation through National Core Research Center for Nanomedical Technology (Grant No. R15-20040924-00000-0).

All Science Journal Classification (ASJC) codes

Materials Science(all)
Physics and Astronomy(all)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.cap.2009.05.011

Cite this

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title = "Photoelectrochemical cells using metal-decorated carbon nanotube electrodes",

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.",

author = "Kim, {Chang Ho} and Hwang, {Sung Sic} and Jihun Kim and Yoo, {Kyung Hwa}",

note = "Funding Information: This work has been financially supported by Korea Science and Engineering Foundation through National Core Research Center for Nanomedical Technology (Grant No. R15-20040924-00000-0).",

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AU - Kim, Chang Ho

AU - Hwang, Sung Sic

AU - Kim, Jihun

AU - Yoo, Kyung Hwa

N1 - Funding Information: This work has been financially supported by Korea Science and Engineering Foundation through National Core Research Center for Nanomedical Technology (Grant No. R15-20040924-00000-0).

PY - 2010/1

Y1 - 2010/1

N2 - 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.

AB - 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.

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Photoelectrochemical cells using metal-decorated carbon nanotube electrodes

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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