On the enthalpic contribution to the redox energetics of SrFeO3−δ

Literature Information

Publication Date 2002-02-08
DOI 10.1039/B109683D
Impact Factor 3.676
Authors

Camilla Haavik, Tooru Atake, Svein Stølen


View Original

Abstract

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.

Related Literature

Exploring the relationship between structure and activity in BODIPYs designed for antimicrobial phototherapy

Burkhard Gitter, Keith J. Flanagan, Christopher J. Kingsbury, Mathias O. Senge

2020-03-06 Paper

DOI: 10.1039/D0OB00188K

Front cover

Cover

DOI: 10.1039/D0OB90026E

A visible-light-induced “on–off” one-pot synthesis of 3-arylacetylene coumarins with AIE properties

Xinjie Wu, Ming Jia, Mengmeng Huang, Jung Keun Kim, Zheng Zhao, Junkai Liu, Jinhu Xi, Yabo Li, Yangjie Wu

2020-04-08 Paper

DOI: 10.1039/D0OB00479K

Room temperature nickel-catalyzed cross-coupling of aryl-boronic acids with thiophenols: synthesis of diarylsulfides

Amit Bhowmik, Mahesh Yadav, Rodney A. Fernandes

2020-03-05 Paper

DOI: 10.1039/D0OB00244E

Multiphosphorylated peptides: importance, synthetic strategies, and applications for studying biological mechanisms

Mamidi Samarasimhareddy, Guy Mayer, Mattan Hurevich, Assaf Friedler

2020-04-01 Review Article

DOI: 10.1039/D0OB00499E

Front cover

Cover

DOI: 10.1039/D0OB90033H

Inside front cover

Cover

DOI: 10.1039/D0OB90054K

Characterization of the promiscuous N-acyl CoA transferase, LgoC, in legonoxamine biosynthesis

Justine Renault, Laurent Trembleau, Catherine Victoria, Ming Him Tong, Shan Wang, Kwaku Kyeremeh, Hai Deng

2020-03-04 Communication

DOI: 10.1039/D0OB00320D

Enantioselective synthesis and determination of the absolute configuration of the male sex pheromone of the parasitoid wasp Urolepis rufipes

Kristina Melnik, Christopher Grimm, Johannes Wittbrodt, Joachim Ruther, Stefan Schulz

2020-04-08 Communication

DOI: 10.1039/D0OB00614A

Mechanism and stereoselectivity of benzylic C–H hydroxylation by Ru–porphyrin: a computational study

Xiahe Chen, Qunmin Wang, Haimin Shen, Guijie Li, Yun-Fang Yang, Yuan-Bin She

2019-12-09 Paper

DOI: 10.1039/C9OB02415H

You might also like

Compound Q&A

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...

1111638-05-16-Bromo-2-methylimid...
Compound Q&A

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...

123620-80-41-Pyrrolidineethanol...
Compound Q&A

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 ...

1918-11-24-Methyl-2,6-bis(2-m...
Compound Q&A

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...

77771-04-12-(3-Bromo-4-fluorop...
Compound Q&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...

18161-11-04,5,6,7-Tetrahydro-1...
Compound Q&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 ...

59919-07-2(2R)-1-Methoxy-3-phe...
Compound Q&A

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...

56649-47-9Ethyl 1-(1-phenyleth...
Compound Q&A

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...

17676-24-34-[(1E,3S)-1-(4-Hydr...
Compound Q&A

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...

331846-97-0(S)-3-Amino-5-phenyl...
Compound Q&A

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...

88791-07-57-methoxy-1-benzothi...

Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

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.

Recommended Compounds

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.