Single-Pot Synthesis of 〈001〉-Faceted N-Doped Nb<inf>2</inf>O<inf>5</inf>/Reduced Graphene Oxide Nanocomposite for Efficient Photoelectrochemical Water Splitting

M. Qamar, M. Abdalwadoud, M. I. Ahmed, A. M. Azad, Belabbes Merzougui, S. Bukola, Z. H. Yamani, M. N. Siddiqui

Research output: Contribution to journalArticle

24 Citations (Scopus)


Due to exciting catalytic activity and selectivity, tailoring of nanocatalysts consisting of preferred crystal facets and desired structural properties remains at the forefront of materials engineering. A facile one-step nonhydrolytic solvothermal synthesis of a nanocomposite of reduced graphene oxide and one-dimensional nitrogen-doped Nb<inf>2</inf>O<inf>5</inf> (N-NbOx) with exposed 〈001〉 facet is described. Triethylamine performed the dual role as nitrogen source and capping agent to control the size and unidirectional growth of Nb<inf>2</inf>O<inf>5</inf> nanocrystallites. The nanocomposite showed efficient visible-light-mediated (λ > 420 nm) water splitting in a photoelectrochemical cell. A plausible mechanism for the formation of N-NbOx nanorods and improved photoelectrochemical efficacy in terms of their oriented growth is proposed.

Original languageEnglish
Pages (from-to)17954-17962
Number of pages9
JournalACS Applied Materials and Interfaces
Issue number32
Publication statusPublished - 19 Aug 2015



  • nonaqueous synthesis
  • semiconductor photocatalyst
  • solvothermal
  • sunlight
  • water splitting

ASJC Scopus subject areas

  • Materials Science(all)

Cite this