Nano cobalt oxides for photocatalytic hydrogen production

Priti A. Mangrulkar, Meenal M. Joshi, Saumitra N. Tijare, Vivek Polshettiwar, Nitin K. Labhsetwar, Sadhana Suresh Rayalu

Research output: Contribution to journalArticlepeer-review

34 Scopus citations


Nano structured metal oxides including TiO 2, Co 3O 4 and Fe 3O 4 have been synthesized and evaluated for their photocatalytic activity for hydrogen generation. The photocatalytic activity of nano cobalt oxide was then compared with two other nano structured metal oxides namely TiO 2 and Fe 3O 4. The synthesized nano cobalt oxide was characterized thoroughly with respect to EDX and TEM. The yield of hydrogen was observed to be 900, 2000 and 8275 mmol h -1 g -1 of photocatalyst for TiO 2, Co 3O 4 and Fe 3O 4 respectively under visible light. It was observed that the hydrogen yield in case of nano cobalt oxide was more than twice to that of TiO 2 and the hydrogen yield of nano Fe 3O 4 was nearly four times as compared to nano Co 3O 4. The influence of various operating parameters in hydrogen generation by nano cobalt oxide was then studied in detail. Copyright © 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Original languageEnglish (US)
Pages (from-to)10462-10466
Number of pages5
JournalInternational Journal of Hydrogen Energy
Issue number13
StatePublished - Jul 2012

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01

ASJC Scopus subject areas

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


Dive into the research topics of 'Nano cobalt oxides for photocatalytic hydrogen production'. Together they form a unique fingerprint.

Cite this