SciAct
Toggle navigation
  • EN
  • RU

Sections:

  • Articles
  • Books
  • Conference attendances
  • Conference theses
  • Patents

Action Spectra and the Mechanism of Photoinduced Formation of Hydrogen and Oxygen on Potassium Niobates Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Translated
Journal High Energy Chemistry
ISSN: 0018-1439
Output data Year: 2009, Volume: 43, Number: 1, Pages: 34-37 Pages count : 4 DOI: 10.1134/S0018143909010056
Authors Zakharenko V.S. 1 , Bogdanov S.V. 1
Affiliations
1 Boreskov Institute of Catalysis SB RAS

Abstract: Powdered samples of complex oxides-potassium niobates with a layered structure were prepared via high-temperature synthesis followed by grinding. The action spectra of photoinduced processes on potassium niobates with different phase compositions in aqueous and aquo-organic systems were determined. It was shown that the evolution of oxygen was due to its photodesorption and occurred upon illumination with light at an energy near the edge of intrinsic niobate absorption. The formation of hydrogen in aqueous systems is due to the photocatalytic dehydrogenation of trace organic compounds adsorbed on potassium niobate, rather than to the photodecomposition of water. The quantum efficiency of the photocatalytic dehydrogenation increased by an order of magnitude when hydrogen-containing organic compounds were added to the reaction mixture.
Cite: Zakharenko V.S. , Bogdanov S.V.
Action Spectra and the Mechanism of Photoinduced Formation of Hydrogen and Oxygen on Potassium Niobates
High Energy Chemistry. 2009. V.43. N1. P.34-37. DOI: 10.1134/S0018143909010056 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
ArticleLinkType.TRANSLATED_TO_ORIGINAL: Захаренко В.С. , Богданов С.В.
Спектры действия и механизм фотоиндуцированного образования водорода и кислорода на ниобатах калия
Химия высоких энергий. 2009. Т.43. №1. С.37-40. publication_identifier_short.rinz_identifier_type
Dates:
Submitted: Feb 29, 2008
Accepted: Jul 7, 2008
Published print: Jan 1, 2009
Published online: Feb 8, 2009
Identifiers:
publication_identifier.wos_identifier_type WOS:000263160400005
publication_identifier.scopus_identifier_type 2-s2.0-59849087700
publication_identifier.rinz_identifier_type 13614607
publication_identifier.accession_number_identifier_type 2009:162267
publication_identifier.chemical_accession_number_identifier_type 152:203020
Altmetrics: