EPR spectroscopic investigation of radical-induced degradation of partially fluorinated aromatic model compounds for fuelcell membranes
文献情報
Frank Schönberger, Jochen Kerres, Herbert Dilger, Emil Roduner
EPR spectroscopic investigations of reactions between monomeric model compounds representing typical structural moieties of poly(aryl) ionomers and photochemically generated hydroxyl radicals are reported. Deoxygenated solutions of the model compounds (in a water/methanol mixture) containing hydrogen peroxide at defined pH values were exposed to UV light in the flow cell within the cavity of an EPR spectrometer. Spectra were analyzed by computer simulation and the formed radicals were assigned by comparing their g-factors and hyperfine coupling constants (hfccs) with those from the literature and from density functional theory (DFT) calculations. The relevance for polymer electrolyte membrane fuel cells (PEMFCs) and alkaline-anion exchange membrane fuel cells (AAEMFCs) is discussed.
おすすめジャーナル
関連文献
Electron transport in MoWSeS monolayers in the presence of an external electric field
Nourdine Zibouche, Pier Philipsen, Thomas Heine, Agnieszka Kuc
DOI: 10.1039/C4CP00966E
Identifying sp–sp2 carbon materials by Raman and infrared spectroscopies
Jinying Wang, Shuqing Zhang, Jingyuan Zhou, Rong Liu, Ran Du, Hua Xu, Zhongfan Liu, Jin Zhang, Zhirong Liu
DOI: 10.1039/C4CP00539B
Perfect spin filtering and large spin thermoelectric effects in organic transition-metal molecular junctions
X. F. Yang, Y. S. Liu, X. Zhang, L. P. Zhou, X. F. Wang, F. Chi, J. F. Feng
DOI: 10.1039/C4CP00390J
Ab initio study of TaON, an active photocatalyst under visible light irradiation
DOI: 10.1039/C4CP00285G
Synergistic contributions by decreasing overpotential and enhancing charge-transfer in α-Fe2O3/Mn3O4/graphene catalysts with heterostructures for photocatalytic water oxidation
Shunli Yin, Xiaomei Wang, Zhigang Mou, Yijie Wu, Hui Huang, Mingshan Zhu, Yukou Du, Ping Yang
DOI: 10.1039/C4CP00384E
Absolute electron total ionization cross-sections: molecular analogues of DNA and RNA nucleobase and sugar constituents
James N. Bull, Jason W. L. Lee, Claire Vallance
DOI: 10.1039/C4CP00490F
Development of high power and energy density microsphere silicon carbide–MnO2 nanoneedles and thermally oxidized activated carbon asymmetric electrochemical supercapacitors
Myeongjin Kim, Jooheon Kim
DOI: 10.1039/C4CP01141D
A new interpretation of SAXS peaks in sulfonated poly(ether ether ketone) (sPEEK) membranes for fuel cells
H. Mendil-Jakani, I. Zamanillo Lopez, P. M. Legrand, V. H. Mareau, L. Gonon
DOI: 10.1039/C4CP00710G
Effect of amide bonds on the self-assembly of gemini surfactants
Jiaul Hoque, Spandhana Gonuguntla, Venkateswarlu Yarlagadda, Vinod K. Aswal, Jayanta Haldar
DOI: 10.1039/C3CP55244F
Silicon based tandem cells: novel photocathodes for hydrogen production
W. Calvet, E. Murugasen, J. Klett, B. Kaiser, W. Jaegermann, F. Finger, S. Hoch, M. Blug, J. Busse
DOI: 10.1039/C3CP55198A
こちらもおすすめ
2-氟-4-イオドベンzo酸エチルエステルを取り扱う際の実験室安全事項は何ですか?
2-氟-4-イオドベンzo酸エチルエステルは有機溶媒を用いた反応であり、ドラフトチャンバーでの操作が必要です。漏洩時にはSDS参照の安全措置を講じ、PPE(防護...
血根碱の主な用途は何ですか?
血根碱は主に医薬分野で利用され、抗炎症や抗がん剤としての潜在的な効果が研究されています。また、化学研究や薬物開発において、新しい薬剤設計の参考となる化合物として...
Methyl 3-methoxythiophene-2-carboxylateの主な用途は何ですか?
Methyl 3-メトキシスチフェン-2-カルボン酸メチルエステルは、薬品合成、染料製造、以及合成中間体としての用途が広がっています。
丹磺酰-L-亮氨酸はどのように保存すればよいですか?
丹磺酰-L-亮氨酸は乾燥した場所で、直射日光から保護し、低温(室温以下)で保存してください。密閉容器に入れて保管することをおすすめします。
5-(苄氧基)ピラミジン-4-アミンの代替品はありますか?
5-(苄氧基)ピラミジン-4-アミンの代替品として、6-メトキシピラミジンや5-フェニルピラミジンなどが挙げられます。これらの化合物は、5-(苄氧基)ピラミジン...
8-ヒドロキシノルデコペントアセートの物理化学的性質は何ですか?
8-ヒドロキシノルデコペントアセートはCAS番号84807-87-4の化合物で、分子量は750.02 uです。これは油溶性で、水に溶けにくい特徴があります。反応...
tert-ブチル(エス)-1-ヒドロキシペンタ-4-エン-2-イルカルバamateの主な用途は何ですか?
tert-ブチル(エス)-1-ヒドロキシペンタ-4-エン-2-イルカルバamateは主に医薬品の合成材料や分析化学の試薬として使用されます。
ブコール-L-2-フローヨルブリンについて適切な法規ガイドラインは何ですか?
ブコール-L-2-フローヨルブリン(CAS番号: 1196107-73-9)は、GHS(グローバルハザードアサessmentシステム)に基づく危害分類と表示が求...
6-ブロモ-N-環丙基-2-ピリジニニメタンの市場動向や研究トレンドはどうですか
6-ブロモ-N-環丙基-2-ピリジニニメタンは、薬理学研究や合成化学に使用される化合物であり、特に抗ウイルス薬や抗がん薬の開発に注目されています。市場では、薬物...
RS-AMPÀはどのように保存すればよいですか?
RS-AMPÀは、遮光容器に保存し、室温(15〜25℃)で保管することが推奨されます。高湿や熱は物質を劣化させるため、湿度は50%以下に保つことが重要です。また...
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.










![(1R)-3-Bromo-1,7,7-trimethylbicyclo[2.2.1]heptan-2-one structure (1R)-3-Bromo-1,7,7-trimethylbicyclo[2.2.1]heptan-2-one structure](https://static.chemtradehub.com/structs/102/10293-06-8-dd8a.webp)



