Reduced graphene oxide-transition metal hybrids as p-type semiconductors for acetaldehyde sensing

Yusuke Murashima, Mohammad Razaul Karim, Ryo Furue, Takeshi Matsui, Hiroshi Takehira, Kosuke Wakata, Kei Toda, Ryo Otani, Masaaki Nakamura, Shinya Hayami

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Acetaldehyde gas sensing using hybrids of reduced graphene oxide (rGO) and transition metal elements, rGO-M (M = oxide/hydroxide of Mn, Fe, Co and Ni) has been investigated. Thin films of GO, rGO and rGO-M on conductive glass were deposited through simple and affordable techniques and characterized using Raman spectroscopy, powder X-ray diffraction patterns, field emission scanning electron microscopy and electrical conductivity measurements. Concentration dependent resistances during the oxidation of acetaldehyde gas in air (10 to 50%) were investigated by using a sensing probe devised from rGO, GO-M and the rGO-M hybrids, of which rGO-Ni exhibited the maximum sensitivity. In rGO-Ni, in combination with rGO the NiOOH precursor can capture electrons (generated from acetaldehyde oxidation) through the holes, while indicating rGO-Ni to be a p-type semiconductor. This report implies the possibility of developing inexpensive graphene based p-type semiconductors for sensing other gases as well.

Original languageEnglish
Pages (from-to)842-848
Number of pages7
JournalInorganic Chemistry Frontiers
Volume3
Issue number6
DOIs
Publication statusPublished - Jun 1 2016
Externally publishedYes

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Acetaldehyde
Oxides
Transition metals
Semiconductor materials
Gases
Oxidation
Chemical elements
Field emission
Diffraction patterns
Raman spectroscopy

All Science Journal Classification (ASJC) codes

  • Inorganic Chemistry

Cite this

Murashima, Y., Karim, M. R., Furue, R., Matsui, T., Takehira, H., Wakata, K., ... Hayami, S. (2016). Reduced graphene oxide-transition metal hybrids as p-type semiconductors for acetaldehyde sensing. Inorganic Chemistry Frontiers, 3(6), 842-848. https://doi.org/10.1039/c6qi00058d

Reduced graphene oxide-transition metal hybrids as p-type semiconductors for acetaldehyde sensing. / Murashima, Yusuke; Karim, Mohammad Razaul; Furue, Ryo; Matsui, Takeshi; Takehira, Hiroshi; Wakata, Kosuke; Toda, Kei; Otani, Ryo; Nakamura, Masaaki; Hayami, Shinya.

In: Inorganic Chemistry Frontiers, Vol. 3, No. 6, 01.06.2016, p. 842-848.

Research output: Contribution to journalArticle

Murashima, Y, Karim, MR, Furue, R, Matsui, T, Takehira, H, Wakata, K, Toda, K, Otani, R, Nakamura, M & Hayami, S 2016, 'Reduced graphene oxide-transition metal hybrids as p-type semiconductors for acetaldehyde sensing', Inorganic Chemistry Frontiers, vol. 3, no. 6, pp. 842-848. https://doi.org/10.1039/c6qi00058d
Murashima, Yusuke ; Karim, Mohammad Razaul ; Furue, Ryo ; Matsui, Takeshi ; Takehira, Hiroshi ; Wakata, Kosuke ; Toda, Kei ; Otani, Ryo ; Nakamura, Masaaki ; Hayami, Shinya. / Reduced graphene oxide-transition metal hybrids as p-type semiconductors for acetaldehyde sensing. In: Inorganic Chemistry Frontiers. 2016 ; Vol. 3, No. 6. pp. 842-848.
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