Kinetic model of the electrochemical oxidation of graphitic carbon in acidic environments
文献情報
Kevin G. Gallagher
The electrochemical oxidation of graphitic carbon results in the performance decay of electrochemical systems such as aqueous, acidic fuel cells, redox-flow batteries, and supercapacitors. An electrochemical mechanism and numerical model is proposed to explain long-standing questions. The model predicts carbon weight loss and surface oxide growth as a function of time, temperature, and potential. Experimentally observed phenomena are discussed and analyzed using the numerical model. Three mechanisms are concluded to contribute to the current decay commonly observed during electrochemical oxidation: mass loss, reversible passive oxide formation, and irreversible oxide formation. Although reversible passive oxide formation governs the current decay under potentiostatic oxidation, a reduction in the equilibrium catalytic oxide is the most significant decay mechanism under potential cycling. Finally, the model is used to determine the change in active site concentration resulting from high-temperature heat treatment of carbon black.
関連文献
Photoinduced reduction and heat-induced oxidation of silver in transparent RSiO3/2 and RSiO3/2–TiO2 films
Go Kawamura, Shizuka Sato, Toshihiro Kogure, Yusuke Daiko, Hiroyuki Muto, Mototsugu Sakai, Atsunori Matsuda
DOI: 10.1039/B924330E
Hierarchical anatase TiO2 porous nanopillars with high crystallinity and controlled length: an effective candidate for dye-sensitized solar-cells
Yang Qu, Wei Zhou, Kai Pan, Chungui Tian, Zhiyu Ren, Youzhen Dong, Honggang Fu
DOI: 10.1039/B922658C
Formation of O adatom pairs and charge transfer upon O2 dissociation on reduced TiO2(110)
Yingge Du, Nathaniel A. Deskins, Zhenrong Zhang, Zdenek Dohnalek, Michel Dupuis, Igor Lyubinetsky
DOI: 10.1039/C000250J
Ab initio simulation of proton spin diffusion
Jean-Nicolas Dumez, Mark C. Butler, Elodie Salager, Bénédicte Elena-Herrmann, Lyndon Emsley
DOI: 10.1039/C0CP00050G
Atomic force microscopy of DNA at high humidity: irreversible conformational switching of supercoiled molecules
Jennifer Kirkham, William A. Bonass
DOI: 10.1039/C0CP01347A
Elucidation of consistent enantioselectivity for a homologous series of chiral compounds in homochiral metal–organic frameworks
Xiaoying Bao, Linda J. Broadbelt, Randall Q. Snurr
DOI: 10.1039/C000809E
Conformational selection or induced fit for Brinker and DNA recognition
Fang Qin, Yaobin Jiang, Yue Chen, Maoying Wu, Guanwen Yan, Wenjun Ye, Yixue Li, Jian Zhang
DOI: 10.1039/C0CP00701C
A kinetic study on the conversion of cis-2-butene with deuterium on a Pd/Fe3O4 model catalyst
Wiebke Ludwig, Aditya Savara, Björn Brandt, Swetlana Schauermann
DOI: 10.1039/C0CP00078G
Experimental and theoretical determination of adsorption heats of CO2 over alkali metal exchanged ferrierites with different Si/Al ratio
Arnošt Zukal, Angeles Pulido, Barbara Gil, Petr Nachtigall, Ota Bludský, Miroslav Rubeš, Jiří Čejka
DOI: 10.1039/C001950J
Physisorption of aromatic organic contaminants at the surface of hydrophobic/hydrophilic silica geosorbents: a B3LYP-D modeling study
Albert Rimola
DOI: 10.1039/C000009D
こちらもおすすめ
2-メトキシ-4-(メチルスルフィニル)アミンの主な用途は何ですか?
2-メトキシ-4-(メチルスルフィニル)アミンは、主に医薬品および農薬の製造に使用されます。また、合成化学の一部として研究用材料としても利用されます。
4,6-二氯-N-甲基ピラミジンアミンの代替品はありますか?
代替品としては、4,6-二クロロピラミジンアミンや他のピラミジン系化合物が考えられます。ただし、目的と用途によって最適な代替品は異なります。
6-氯-4-甲基-1H-吲哚を含む廃棄物はどのように処理すべきですか?
6-氯-4-甲基-1H-吲哚の廃棄物は、適切な容器に収集し、密閉して保管します。温度は常温、湿度は低く、直射日光を避けて保管することを推奨します。廃棄処理は専門...
2-フローユロ-4-(トリフルオロメチル)ベンゾイドについて「に適用される法規ガイドラインは何ですか」
2-フローユロ-4-(トリフルオロメチル)ベンゾイドのCAS番号は207974-08-1です。この化合物はGHS分類で毒性物質と有害な反応物質として分類されます...
4-ニトロフェニルN-[(ベンゼルオキシルカーボンイル]グリシングリシングリシン酸はどのように保存すればよいですか?
4-ニトロフェニルN-[(ベンゼルオキシルカーボンイル]グリシングリシングリシン酸は、室温で暗所に保管し、乾燥した環境で保存することを推奨します。容器は密閉性の...
イソデスロラタドリンの代替品はありますか?
イソデスロラタドリンの代替品としては、デスロラタドリンや他の抗ヒスタミン薬が挙げられます。具体的には、デスロラタドリン、ラセカミド、フェルタドリンなどが、症状や...
5-甲氧基-1,2,3,4-四氢异喹啉盐酸盐はどのように合成されますか?
5-甲氧基-1,2,3,4-四氢异喹啉盐酸盐の一般的な合成方法は、メタノール中で5-メトキシ-1,2,3,4-四ヒュドロイソキシンを塩酸で塩化します。この反応で...
4-アミノ-5-メトキシ-2-トルエンサルホニック酸についての法規ガイドラインは何ですか?
CAS番号6471-78-9の4-アミノ-5-メトキシ-2-トルエンサルホニック酸は、GHS分類では corrosive(腐食性)と識別されます。EUのREAC...
甲基孕酮を取り扱う際の実験室安全事項は何ですか?
甲基孕酮の取り扱いは、PPE(個人保護具)の使用が必要な重要な安全事項を伴います。防塵マスク、ゴーグル、手袋を着用することが推奨されます。ドラフトチャンバーを使...
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.














