Proton conductivity in mixed-conducting BSFZ perovskite from thermogravimetric relaxation

Literature Information

Publication Date 2014-06-16
DOI 10.1039/C4CP00459K
Impact Factor 3.676
Authors

Daniel Poetzsch, Rotraut Merkle, Joachim Maier


View Original

Abstract

The proton conductivity of mixed hole-, oxygen ion- and proton-conducting Ba0.5Sr0.5Fe0.8Zn0.2O3−δ (BSFZ), a potential cathode material for fuel cells based on oxidic proton-conducting electrolytes, was determined from the weight changes of dense pellets upon changing pH2O (and pD2O). The obtained proton concentrations at 20 mbar pH2O range from 1.3 to 0.32 mol% (350–600 °C). The effective diffusion coefficients extracted from the transients and ranging from 1.4 to 29 × 10−7 cm2 s−1 (350 to 600 °C) represent a lower bound for the proton diffusivity and the directly related proton mobility. The calculated proton conductivities reach values in the range of 0.9 to 3 × 10−4 S cm−1. Since the real proton conductivity might be underestimated, these values are sufficiently high to render the bulk path in the oxygen reduction mechanism dominant in dense, thin-film electrodes.

Related Literature

The decomposition of benzenesulfonyl azide: a matrix isolation and computational study

Guohai Deng, Xuelin Dong, Qifan Liu, Dingqing Li, Hongmin Li, Qiao Sun, Xiaoqing Zeng

2017-01-11 Paper

DOI: 10.1039/C6CP08125H

Electric field tunable half-metallic characteristic at Fe3O4/BaTiO3 interfaces‡

Xueyao Hou, Xiaocha Wang, Guifeng Chen, Wenbo Mi

2017-01-06 Paper

DOI: 10.1039/C6CP07858C

Comparative study of the intermolecular dynamics of imidazolium-based ionic liquids with linear and branched alkyl chains: OHD-RIKES measurements

Lianjie Xue, Fehmi Bardak, George Tamas, Edward L. Quitevis

2017-01-19 Paper

DOI: 10.1039/C6CP08263G

The water association band as a marker of hydrogen bonds in trehalose amorphous matrices

Sergio Giuffrida, Lorenzo Cordone

2017-01-04 Paper

DOI: 10.1039/C6CP06848K

Mechanisms of absorption and desorption of CO2 by molten NaNO3-promoted MgO

Seung-Ik Jo, Young-In An, Kang-Yeong Kim, Seo-Yeong Choi, Jin-Su Kwak, Kyung-Ryul Oh, Young-Uk Kwon

2017-02-01 Paper

DOI: 10.1039/C6CP07787K

Intracellular water – an overlooked drug target? Cisplatin impact in cancer cells probed by neutrons

A. L. M. Batista de Carvalho, V. Garcia Sakai, L. Hatter, L. A. E. Batista de Carvalho

2016-11-24 Paper

DOI: 10.1039/C6CP05198G

Contents list

Front/Back Matter

DOI: 10.1039/C7CP90036H

Second-harmonic phase determination by real-time in situ interferometry

Bason Clancy, Joshua Salafsky

2017-01-09 Paper

DOI: 10.1039/C6CP07708K

Low intensity, continuous wave photodoping of ZnO quantum dots – photon energy and particle size effects

Matías E. Aguirre, S. Municoy, M. A. Grela, A. J. Colussi

2017-01-04 Paper

DOI: 10.1039/C6CP06829D

You might also like

Compound Q&A

What are the main uses of (5-Sulfamoyl-3-pyridinyl)boronic acid (CAS: 951233-61-7)?

(5-Sulfamoyl-3-pyridinyl)boronic acid is primarily used in chemical synthesis, p...

951233-61-7(5-Sulfamoyl-3-pyrid...
Compound Q&A

How is Benzyl 2-methyl-2-(methylsulfonyl)-4-pentenoate (CAS: 1942858-50-5) typically synthesized?

Benzyl 2-methyl-2-(methylsulfonyl)-4-pentenoate is typically synthesized via est...

1942858-50-5Benzyl 2-methyl-2-(m...
Compound Q&A

What precautions should be taken when handling 8-Fluoroquinolin-6-ol (CAS: 209353-22-0)?

When handling 8-Fluoroquinolin-6-ol (CAS: 209353-22-0), it is important to use p...

209353-22-08-Fluoroquinolin-6-o...
Compound Q&A

What are the physical and chemical properties of 1,3-Dibromo-5-(2-methyl-2-propanyl)benzene (CAS: 129316-09-2)?

1,3-Dibromo-5-(2-methyl-2-propanyl)benzene (CAS: 129316-09-2) is a crystalline c...

129316-09-21,3-Dibromo-5-(2-met...
Compound Q&A

What industries use Ethyl 7-chloro-4-oxo-1-(1,3-thiazol-2-yl)-1,4-dihydro-1,8-naphthyridine-3-carboxylate (CAS: 174726-87-5)?

Ethyl 7-chloro-4-oxo-1-(1,3-thiazol-2-yl)-1,4-dihydro-1,8-naphthyridine-3-carbox...

174726-87-5Ethyl 7-chloro-4-oxo...
Compound Q&A

What precautions should be taken when handling Delta-7-Avenasterol (CAS: 23290-26-8)?

When handling Delta-7-Avenasterol (CAS: 23290-26-8), it is important to wear app...

23290-26-8Delta-7-Avenasterol
872992-20-6N-({(5R)-3-[3-Fluoro...
Compound Q&A

What precautions should be taken when handling 2-Methyl-2-proanyl 4-[(2-aminophenyl)amino]-1-piperidinecarboxylate (CAS: 79099-00-6)?

When handling 2-Methyl-2-proanyl 4-[(2-aminophenyl)amino]-1-piperidinecarboxylat...

79099-00-62-Methyl-2-propanyl ...
Compound Q&A

What is N-Methyl-4-chlorobenzylamine hydrochloride (CAS: 65542-24-7)?

N-Methyl-4-chlorobenzylamine hydrochloride (CAS: 65542-24-7) is a organic compou...

65542-24-7N-Methyl-4-chloroben...
Compound Q&A

Is [2-(Dodecyloxy)ethoxy]acetic acid (CAS: 27306-90-7) safe?

[2-(Dodecyloxy)ethoxy]acetic acid (CAS: 27306-90-7) is generally considered safe...

27306-90-7[2-(Dodecyloxy)ethox...

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.