On the enthalpic contribution to the redox energetics of SrFeO3−δ
Literature Information
Camilla Haavik, Tooru Atake, Svein Stølen
The enthalpy of oxidation/reduction of the grossly non-stoichiometric high-temperature phase SrFeO3−δ, i.e. the enthalpy ofSrFeO2.50 (perovskite) + ⅙O2(g) ⇌ SrFeO2.8333 (perovskite)has been deduced from calorimetric data. The enthalpy of oxidation of vacancy ordered brownmillerite-type SrFeO2.50 obtained by direct reaction calorimetry combined with extensive heat capacity data (C. Haavik, T. Atake, H. Kawaji and S. Stølen, Phys. Chem. Chem. Phys., 2001, 3, 3863) shows that vacancy ordering in this particular case makes a significant contribution to the measured oxidation enthalpy. While it is often argued that the vacancy ordering in materials like SrFeO3−δ depends to some degree on the thermal history of the sample investigated, such effects give a negligible contribution to the directly determined enthalpy of oxidation. The redox properties of SrFeO3−δ are described through the use of a solution model where the presently deduced enthalpy of oxidation and the earlier reported entropy of oxidation are the only input parameters. The present study indicates that the redox properties of complex non-stoichiometric perovskite-type oxides can be rationalized reasonably well through the use of a simple model description. The main parameters of the model are the difference in enthalpy and vibrational entropy of formation between the two limiting compositions of the solid solution (here SrFeO3 and SrFeO2.5) and the configurational entropy.
Recommended Journals
Related Literature
Fluorescence resonance energy transfer in recognition-mediated polymer-quantum dot assemblies
Vikas Nandwana, Brian Fitzpatrick, Kyril M. Solntsev, Xi Yu, Gülen Yesilbag Tonga, Serkan Eymur, Murat Tonga, Graeme Cooke, Vincent M. Rotello
DOI: 10.1039/C2PY20353G
Correction: Role of enhanced solubility in esterification of 2,5-furandicarboxylic acid with ethylene glycol at reduced temperatures: energy efficient synthesis of poly(ethylene 2,5-furandicarboxylate)
Anup S. Joshi, Niloofar Alipourasiabi, Yong-Wah Kim, Maria R. Coleman, Joseph G. Lawrence
DOI: 10.1039/C9RE90014D
Continuous synthesis of elastomeric macroporous microbeads
Jeffrey A. Bennett, Zachary S. Campbell, Milad Abolhasani
DOI: 10.1039/C8RE00189H
A hybrid description and evaluation of oxymethylene dimethyl ethers synthesis based on the endothermic dehydrogenation of methanol
Franz Mantei, Kai Hesterwerth, Eleonora Bargiacchi, Harald Klein, Robin J. White
DOI: 10.1039/C8RE00100F
Reversible maleimide–thiol adducts yield glutathione-sensitive poly(ethylene glycol)–heparin hydrogels
Aaron D. Baldwin
DOI: 10.1039/C2PY20576A
Dynamic-covalent nanostructures prepared by Diels–Alder reactions of styrene-maleic anhydride-derived copolymers obtained by one-step cascade block copolymerization
Abhijeet P. Bapat, Jacob G. Ray, Daniel A. Savin, Emily A. Hoff, Derek L. Patton
DOI: 10.1039/C2PY20351K
A reaction–diffusion kinetic model for the heterogeneous N-deacetylation step in chitin material conversion to chitosan in catalytic alkaline solutions
Bojana Bradić, David Bajec, Andrej Pohar, Uroš Novak, Blaž Likozar
DOI: 10.1039/C8RE00170G
Synthesis of single-walled carbon nanotube-incorporated polymer hydrogels via click chemistry
Eunji Lee, Jiyoung Park, Sung Gap Im, Changsik Song
DOI: 10.1039/C2PY20266B
Metal-free catalytic oxidation of benzylic alcohols for benzaldehyde
DOI: 10.1039/C8RE00265G
You might also like
What regulatory guidelines apply to 6-Bromo-2-methylimidazo[1,2-a]pyrimidine (CAS: 1111638-05-1)?
6-Bromo-2-methylimidazo[1,2-a]pyrimidine (CAS: 1111638-05-1) falls under various...
Are there alternatives to 1-Pyrrolidineethanol, β-methyl-α-phenyl-, (αS,βR) (CAS: 123620-80-4) in synthesis?
While there are no direct alternatives, similar compounds like 1-Pyrrolidineetha...
Is 4-Methyl-2,6-bis(2-methyl-2-propanyl)phenyl methylcarbamate (CAS: 1918-11-2) safe?
4-Methyl-2,6-bis(2-methyl-2-propanyl)phenyl methylcarbamate (CAS: 1918-11-2) is ...
How should 2-(3-Bromo-4-fluorophenyl)-1,3-dioxolane (CAS: 77771-04-1) be stored?
2-(3-Bromo-4-fluorophenyl)-1,3-dioxolane (CAS: 77771-04-1) should be stored in a...
What are the physical and chemical properties of 4,5,6,7-Tetrahydro-1H-indazole hydrochloride (CAS: 18161-11-0)?
4,5,6,7-Tetrahydro-1H-indazole hydrochloride is a white crystalline solid with a...
What is (2R)-1-Methoxy-3-phenyl-2-propanamine (CAS: 59919-07-2)?
(2R)-1-Methoxy-3-phenyl-2-propanamine is a chiral organic compound with the CAS ...
What industries use Ethyl 1-(1-phenylethyl)-1H-imidazole-5-carboxylate (CAS: 56649-47-9)?
Ethyl 1-(1-phenylethyl)-1H-imidazole-5-carboxylate is used in various industries...
What regulatory guidelines apply to 4-[(1E,3S)-1-(4-Hydroxyphenyl)-1,4-pentadien-3-yl]phenol (CAS: 17676-24-3)?
4-[(1E,3S)-1-(4-Hydroxyphenyl)-1,4-pentadien-3-yl]phenol (CAS: 17676-24-3) falls...
What industries use (S)-3-Amino-5-phenylpentanoic acid hydrochloride (CAS: 331846-97-0)?
(S)-3-Amino-5-phenylpentanoic acid hydrochloride is primarily used in the pharma...
How is 7-methoxy-1-benzothiophene-2-carboxylic acid (CAS: 88791-07-5) typically synthesized?
7-Methoxy-1-benzothiophene-2-carboxylic acid is typically synthesized by reactin...
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.










![9H-Fluoren-9-ylmethyl {15-[(2,5-dioxo-1-pyrrolidinyl)oxy]-15-oxo-3,6,9,12-tetraoxapentadec-1-yl}carbamate structure 9H-Fluoren-9-ylmethyl {15-[(2,5-dioxo-1-pyrrolidinyl)oxy]-15-oxo-3,6,9,12-tetraoxapentadec-1-yl}carbamate structure](https://static.chemtradehub.com/structs/131/1314378-14-7-4316.webp)



