Manganese oxide/functionalised carbon nanotubes nanocomposite as catalyst for oxygen reduction reaction in microbial fuel cell

Kien Ben Liew, Wan Ramli Wan Daud, Mostafa Ghasemi, Swee Su Lim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

α-Manganese oxide/ functionalized carbon nanotubes (α-MnO2/f-CNT) nanocomposite was believed to be a good catalyst for oxygen reduction reaction (ORR) in neutral solution especially in microbial fuel cell. The unique interaction between α-MnO2 and f-CNT will enhance the electron transfer process and facilitate the ORR. α- MnO2/f-CNT nanocomposite was fabricated by in-situ hydrothermal synthesis method. The α-MnO2/f-CNT was characterized by field emission scanning electron microscope (FESEM). This study also employed cyclic voltammetry (CV) techniques to investigate the catalytic activity. Lastly, microbial fuel cell test showed that MnO2/f-CNT showed higher power density (520 mW m-2) compared to CNT (275 mW m-2) and f-CNT (440 mW m-2). Besides, the coulombic efficiency (28.65 %) and COD removal value (86.6 %) of MFC with MnO2/f-CNT catalyst also showed higher amongst three catalyst tested. This study concluded that MnO2/f-CNT can be a good catalyst in microbial fuel cell application.

Original languageEnglish
Title of host publication20th World Hydrogen Energy Conference, WHEC 2014
PublisherCommittee of WHEC2014
Pages1105-1110
Number of pages6
Volume2
ISBN (Print)9780000000002
Publication statusPublished - 2014
Event20th World Hydrogen Energy Conference, WHEC 2014 - Gwangju
Duration: 15 Jun 201420 Jun 2014

Other

Other20th World Hydrogen Energy Conference, WHEC 2014
CityGwangju
Period15/6/1420/6/14

Fingerprint

Microbial fuel cells
Manganese oxide
Carbon nanotubes
Nanocomposites
Catalysts
Oxygen
Hydrothermal synthesis
Field emission
Cyclic voltammetry
Catalyst activity
Electron microscopes
Scanning
Electrons

Keywords

  • Catalyst
  • Cathode
  • Manganese oxide
  • Microbial fuel cell
  • Oxygen reduction reaction

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology

Cite this

Liew, K. B., Wan Daud, W. R., Ghasemi, M., & Lim, S. S. (2014). Manganese oxide/functionalised carbon nanotubes nanocomposite as catalyst for oxygen reduction reaction in microbial fuel cell. In 20th World Hydrogen Energy Conference, WHEC 2014 (Vol. 2, pp. 1105-1110). Committee of WHEC2014.

Manganese oxide/functionalised carbon nanotubes nanocomposite as catalyst for oxygen reduction reaction in microbial fuel cell. / Liew, Kien Ben; Wan Daud, Wan Ramli; Ghasemi, Mostafa; Lim, Swee Su.

20th World Hydrogen Energy Conference, WHEC 2014. Vol. 2 Committee of WHEC2014, 2014. p. 1105-1110.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Liew, KB, Wan Daud, WR, Ghasemi, M & Lim, SS 2014, Manganese oxide/functionalised carbon nanotubes nanocomposite as catalyst for oxygen reduction reaction in microbial fuel cell. in 20th World Hydrogen Energy Conference, WHEC 2014. vol. 2, Committee of WHEC2014, pp. 1105-1110, 20th World Hydrogen Energy Conference, WHEC 2014, Gwangju, 15/6/14.
Liew KB, Wan Daud WR, Ghasemi M, Lim SS. Manganese oxide/functionalised carbon nanotubes nanocomposite as catalyst for oxygen reduction reaction in microbial fuel cell. In 20th World Hydrogen Energy Conference, WHEC 2014. Vol. 2. Committee of WHEC2014. 2014. p. 1105-1110
Liew, Kien Ben ; Wan Daud, Wan Ramli ; Ghasemi, Mostafa ; Lim, Swee Su. / Manganese oxide/functionalised carbon nanotubes nanocomposite as catalyst for oxygen reduction reaction in microbial fuel cell. 20th World Hydrogen Energy Conference, WHEC 2014. Vol. 2 Committee of WHEC2014, 2014. pp. 1105-1110
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AB - α-Manganese oxide/ functionalized carbon nanotubes (α-MnO2/f-CNT) nanocomposite was believed to be a good catalyst for oxygen reduction reaction (ORR) in neutral solution especially in microbial fuel cell. The unique interaction between α-MnO2 and f-CNT will enhance the electron transfer process and facilitate the ORR. α- MnO2/f-CNT nanocomposite was fabricated by in-situ hydrothermal synthesis method. The α-MnO2/f-CNT was characterized by field emission scanning electron microscope (FESEM). This study also employed cyclic voltammetry (CV) techniques to investigate the catalytic activity. Lastly, microbial fuel cell test showed that MnO2/f-CNT showed higher power density (520 mW m-2) compared to CNT (275 mW m-2) and f-CNT (440 mW m-2). Besides, the coulombic efficiency (28.65 %) and COD removal value (86.6 %) of MFC with MnO2/f-CNT catalyst also showed higher amongst three catalyst tested. This study concluded that MnO2/f-CNT can be a good catalyst in microbial fuel cell application.

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KW - Oxygen reduction reaction

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