Proton conductivity in mixed-conducting BSFZ perovskite from thermogravimetric relaxation
文献情報
Daniel Poetzsch, Rotraut Merkle, Joachim Maier
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.
関連文献
Anions coordinating anions: analysis of the interaction between anionic Keplerate nanocapsules and their anionic ligands
Josep Bonet Avalos
DOI: 10.1039/C6CP08511C
Interpolated energy densities, correlation indicators and lower bounds from approximations to the strong coupling limit of DFT
Stefan Vuckovic, Tom J. P. Irons, Lucas O. Wagner, Andrew M. Teale, Paola Gori-Giorgi
DOI: 10.1039/C6CP08704C
Ethane C–H bond activation on the Fe(iv)–oxo species in a Zn-based cluster of metal–organic frameworks: a density functional theory study
Sarawoot Impeng, Siwarut Siwaipram, Sareeya Bureekaew, Michael Probst
DOI: 10.1039/C6CP07771D
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
DOI: 10.1039/C6CP05198G
Layered structure of the near-surface region of oxidized chalcopyrite (CuFeS2): hard X-ray photoelectron spectroscopy, X-ray absorption spectroscopy and DFT+U studies
Yuri Mikhlin, Vladimir Nasluzov, Alexander Romanchenko, Yevgeny Tomashevich, Alexey Shor, Roberto Félix
DOI: 10.1039/C6CP07598C
Effect of Ag and Pd promotion on CH4 selectivity in Fe(100) Fischer–Tröpsch catalysis
Jennifer Wilcox, David W. Ball
DOI: 10.1039/C6CP07116C
Nonadiabatic Renner–Teller quantum dynamics of OH(X2Π) + H+ reactive collisions
Pablo Gamallo, Sinan Akpinar, Paolo Defazio, Carlo Petrongolo
DOI: 10.1039/C6CP07756K
A theoretical study of the potential energy surfaces for the double proton transfer reaction of model DNA base pairs
Chaozheng Li, Yonggang Yang, Donglin Li, Yufang Liu
DOI: 10.1039/C6CP07716A
Charge transport in organic donor–acceptor mixed-stack crystals: the role of nonlocal electron–phonon couplings
Lingyun Zhu, Hua Geng, Yuanping Yi, Zhixiang Wei
DOI: 10.1039/C6CP07417K
The water association band as a marker of hydrogen bonds in trehalose amorphous matrices
Sergio Giuffrida, Lorenzo Cordone
DOI: 10.1039/C6CP06848K
こちらもおすすめ
オステニ二甲磺酸塩に適用される法規ガイドラインは何ですか?
オステニ二甲磺酸塩は、GHS分類に基づき corrosive 物質として分類されます。REACH規則では、該当物質の登録が要求される可能性があります。また、FD...
環丁基肼盐酸盐は安全ですか?
環丁基肼盐酸盐は毒性があり、吸入や皮膚接触は有害です。使用時の安全対策として、密閉システムを使用し、適切な排気設備を備えた場所で作業することが推奨されます。
N-(4-パリドン基ソニルフェニル)硫代イソシアネートを取り扱う際の実験室安全事項は何ですか?
N-(4-パリドン基ソニルフェニル)硫代イソシアネートは高毒性で、皮膚や吸入による毒性があります。取り扱う際は防毒マスク、保護用手袋、保護眼鏡などのPPEを着用...
5-ヒドロキシ-1,3-ジヒドロ-2H-インドン-2-酮の物理化学的性質は何ですか?
CAS番号3416-18-0の5-ヒドロキシ-1,3-ジヒドロ-2H-インドン-2-酮は、結晶性の白色粉末です。分子量は228.25であり、 aqueous m...
O-苄基-D-丝氨醇はどのように合成されますか?
O-苄基-D-丝氨醇は、D-アミノ酸とベンゼン環の経由で合成されます。触媒としてジメチルアミノピリジンが使用され、選択性は高いです。一般的な収率は約90%です。
ナトリウム3-ヒドロキシbutano酸とは何ですか?
ナトリウム3-ヒドロキシbutano酸は、CAS番号13613-65-5で登録されている化合物です。この化合物は、(3R)-3-ヒドロキシbutano酸とナトリ...
1-(二苯甲基)-4-甲基ベンゼンの物理化学的性質は何ですか?
CAS番号603-37-2の1-(二苯甲基)-4-甲基ベンゼンは、結晶性の固体で、分子量は244.28であり、水中的には微溶です。この化合物は有機反応において中...
ネアミン塩酸塩の物理化学的性質は何ですか?
ネアミン塩酸塩の分子量は321.19であり、結晶性の白色粉末です。この化合物は水に溶けやすく、pHが低くなると不溶性になります。反応活性は高く、水溶液中の酸化還...
偶氮二甲酰二哌啶の主な用途は何ですか?
偶氮二甲酰二哌啶は、医薬品、染料、高 Então 剤、触媒、溶媒、量論試薬など、様々な分野で使用されています。特に、高 Enough 反応において、グリコール酸...
掲載誌
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.













![4,10-Dihydroxy-3H-pyrano[3,4,5-kl]xanthen-3-one structure 4,10-Dihydroxy-3H-pyrano[3,4,5-kl]xanthen-3-one structure](https://static.chemtradehub.com/structs/125/1259330-61-4-de48.webp)
