Conference paper

Publication year: 2017

Pages: 65-69

Journal: Catalysis Today

Volume number: 287

ISSN: 0920-5861

eISSN: 1873-4308

DOI Link: https://doi.org/10.1016/j.cattod.2016.10.009

Conference: 9th European Meeting on Solar Chemistry and Photocatalysis - Environmental Applications (SPEA)

Publisher: Elsevier

Abstract: 
A class of Dion-Jacobson type layered perovskite niobium oxides (AB(2)Nb(3)O(10) with A= K, Rb, Cs and B = Ca, Sr, Ba) was prepared via molten salt method for the first time. By dissolving oxide and carbonate precursors in A-cation chloride melts, this type of synthesis needs only two hours of preparation time resulting in highly crystalline layered niobates at a much shorter synthesis time compared to conventional syntheses, like the solid state reaction. Beside detailed materials characterization, we investigated the influence of A-cation and B-cation variation on the band gap and photocatalytic activity for hydrogen production. It was found that the band gap decreases with the increase in size of the B-cation. A strong dependence on interlayer spacing (influenced by the size of the A-cation) and lattice relaxation can be derived from the steady-state hydrogen evolution rates. (C)2016 Elsevier B.V. All rights reserved.

Harvard Citation style: Kulischow, N., Ladasiu, C. and Marschall, R. (2017) Layered Dion-Jacobson type niobium oxides for photocatalytic hydrogen production prepared via molten salt synthesis, Catalysis Today, 287, pp. 65-69. https://doi.org/10.1016/j.cattod.2016.10.009

APA Citation style: Kulischow, N., Ladasiu, C., & Marschall, R. (2017). Layered Dion-Jacobson type niobium oxides for photocatalytic hydrogen production prepared via molten salt synthesis. Catalysis Today. 287, 65-69. https://doi.org/10.1016/j.cattod.2016.10.009