TU Darmstadt / ULB / TUbiblio

Strongly affected photocatalytic CO2 reduction by CO2 adsorbed to the surface of Ba2(In1.8Cr0.2)O5·(H2O) powders

Yoon, Songhak and Nikoee, Sheler and Ranjbar, Maryam and Ziegenbalg, Dirk and Widenmeyer, Marc and Weidenkaff, Anke (2020):
Strongly affected photocatalytic CO2 reduction by CO2 adsorbed to the surface of Ba2(In1.8Cr0.2)O5·(H2O) powders.
In: Solid State Sciences, 105, p. 106212. ISSN 12932558,
DOI: 10.1016/j.solidstatesciences.2020.106212,
[Article]

Abstract

Nanocrystalline Ba2(In1.8Cr0.2)O5·(H2O)δ powders were synthesized via a polymerizable-complex method in two different ways, one based on citric acid and the other additionally on 2,6-pyridinedicarboxylic acid, 2,6-diaminopyridine, and polyethylene glycol. Crystal structure, surface area, thermochemical and optical properties were analyzed. The photocatalytic activity was measured by the reduction of CO2 under H2 gas flow. CO2 adsorption at the catalyst surface is found to be a critical factor strongly affecting the reactivity. With this study, we demonstrate the importance of the surface states as a crucial parameter when developing better CO2 photo-reduction catalysts.

Item Type: Article
Erschienen: 2020
Creators: Yoon, Songhak and Nikoee, Sheler and Ranjbar, Maryam and Ziegenbalg, Dirk and Widenmeyer, Marc and Weidenkaff, Anke
Title: Strongly affected photocatalytic CO2 reduction by CO2 adsorbed to the surface of Ba2(In1.8Cr0.2)O5·(H2O) powders
Language: English
Abstract:

Nanocrystalline Ba2(In1.8Cr0.2)O5·(H2O)δ powders were synthesized via a polymerizable-complex method in two different ways, one based on citric acid and the other additionally on 2,6-pyridinedicarboxylic acid, 2,6-diaminopyridine, and polyethylene glycol. Crystal structure, surface area, thermochemical and optical properties were analyzed. The photocatalytic activity was measured by the reduction of CO2 under H2 gas flow. CO2 adsorption at the catalyst surface is found to be a critical factor strongly affecting the reactivity. With this study, we demonstrate the importance of the surface states as a crucial parameter when developing better CO2 photo-reduction catalysts.

Journal or Publication Title: Solid State Sciences
Journal volume: 105
Uncontrolled Keywords: Ba2In2O5, Cr-substitution, Wet chemistry, Photocatalytic CO2 reduction, CO2 adsorption
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Materials and Resources
Date Deposited: 20 May 2020 07:45
DOI: 10.1016/j.solidstatesciences.2020.106212
Official URL: https://doi.org/10.1016/j.solidstatesciences.2020.106212
Export:
Suche nach Titel in: TUfind oder in Google
Send an inquiry Send an inquiry

Options (only for editors)
Show editorial Details Show editorial Details