
Open access
Date
2017-01Type
- Journal Article
Citations
Cited 11 times in
Web of Science
Cited 12 times in
Scopus
ETH Bibliography
yes
Altmetrics
Abstract
Nonstoichiometric ceria, CeO2-δ, has emerged as a promising redox material for thermochemically splitting H2O and CO2 using concentrated solar energy. Knowledge of its radiative properties is crucial for the design of efficient solar reactors. Samples of various nonstoichiometries (0≤δ≤0.0377) were prepared by thermal reduction in a thermogravimetric analyzer at high temperatures (T≥1473 K) and under low oxygen partial pressures (pO2≤2.5·10−4 atm). The spectral hemispherical reflectivity was measured using a spectroscopic goniometry system in the spectral range 300–2800 nm. A porous ceria sample with interconnected µm-sized pores showed comparable selectivity because of its high optical thickness. The total hemispherical reflectivity was computed for emission temperatures in the range 900–6000 K relevant to solar reactors. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000119924Publication status
publishedExternal links
Journal / series
Solar Energy Materials and Solar CellsVolume
Pages / Article No.
Publisher
ElsevierSubject
Ceria; Nonstoichiometry; Reflectivity; Spectroscopy; Solar radiationOrganisational unit
03530 - Steinfeld, Aldo / Steinfeld, Aldo
More
Show all metadata
Citations
Cited 11 times in
Web of Science
Cited 12 times in
Scopus
ETH Bibliography
yes
Altmetrics