Initial stages of Cu3Au(111) oxidation: oxygen induced Cu segregation and the protective Au layer profile
文献情報
Kohei Oka, M. Hashinokuchi, Akitaka Yoshigoe, Yuden Teraoka
We report results of our experimental and theoretical studies on the Au concentration profile of Cu3Au(111) during oxidation by a hyperthermal O2 molecular beam at room temperature, using X-ray photoemission spectroscopy (XPS), in conjunction with synchrotron radiation (SR), and density functional theory (DFT). Before O2 exposure, we observe strong Au segregation to the top layer, i.e., Au surface enrichment of the clean surface. We also observe a gradual Cu surface enrichment, and Au enrichment of the second and third (subsurface) layers, with increasing O coverage. Complete Cu segregation to the surface occurs at 0.5 ML O surface coverage. The Au-rich second and third layers of the oxidized surface demonstrate the protective layer formation against oxidation deeper into the bulk.
おすすめジャーナル
関連文献
Synthesis of sulfur-containing poly(thioester)s with high refractive indices and high Abbe numbers
Nam-Ho You, Tomoya Higashihara, Suzuki Yasuo, Shinji Ando, Mitsuru Ueda
DOI: 10.1039/B9PY00326F
Organosolubility and optical transparency of novel polyimides derived from 2′,7′-bis(4-aminophenoxy)-spiro(fluorene-9,9′-xanthene)
ShuJiang Zhang, YanFen Li, Tao Ma, JiuJiang Zhao, XiangYang Xu, FenChun Yang, Xiao-Yan Xiang
DOI: 10.1039/B9PY00339H
Process modelling and life cycle assessment coupled with experimental work to shape the future sustainable production of chemicals and fuels
Iasonas Ioannou, Sebastiano Carlo D'Angelo, Ángel Galán-Martín, Carlos Pozo, Javier Pérez-Ramírez, Gonzalo Guillén-Gosálbez
DOI: 10.1039/D0RE00451K
New approach to consecutive CO oxidation and CO2 chemisorption using Li2CuO2 ceramics modified with Na- and K-molten salts
Susana Hernández-Castillo, Héctor Martínez-Hernández, J. Arturo Mendoza-Nieto
DOI: 10.1039/D1RE00087J
Electro-catalytic membrane reactors for the degradation of organic pollutants – a review
Marc Cretin, Lingxue Kong, Luke A. O'Dell, Andrea Merenda
DOI: 10.1039/D1RE00091H
Ionic liquid-derived polyelectrolyte promoting the biphasic condensation of immiscible reactants at moderate temperature
Yuki Kohno, Takashi Makino
DOI: 10.1039/D1RE00304F
Grafting of polymer brushes from nanopore surface via atom transfer radical polymerization with activators regenerated by electron transfer
Liang Cao, Michal Kruk
DOI: 10.1039/B9PY00282K
Determination of the propagation rate coefficient of acrylonitrile
Tanja Junkers, Sandy P. S. Koo, Christopher Barner-Kowollik
DOI: 10.1039/C0PY00019A
こちらもおすすめ
3-イチチルビフェニルはどのように合成されますか?
3-イチチルビフェニルは、ビフェニルとイチプロピオニトリルを回収率約90%で反応させて合成されます。触媒は通常、亜リチウムホウ素を用います。
8-溴-5-三氟甲基喹啉はどのように合成されますか?
8-溴-5-三氟甲基喹啉は、5-トリフルオロメチル-2-メチル-1,3-ベンゼンジオールをブロモエタノールと反応させて生成します。この反応は塩基性条件下で行われ...
ジメチル4-(4,4,5,5-テトラメチル-1,3,2-ドioxaborolan-2-基)-2,6-ピリジンジカルボイル酸フェニルアミニドの代替品はありますか?
ジメチル4-(4,4,5,5-テトラメチル-1,3,2-ドioxaborolan-2-基)-2,6-ピリジンジカルボイル酸フェニルアミニドの代替品としては、4-...
N-(3,5-ヘキサクロロ-4-ピリドインイル)-8-メチオキシ-5-キノリンカーボン酸の市場動向や研究トレンドはどのようなものでしょうか?
N-(3,5-ヘキサクロロ-4-ピリドインイル)-8-メチオキシ-5-キノリンカーボン酸の市場動向は、主に産業用途での需要により影響を受けます。研究トレンドとし...
イソステアロイルグリセリルは安全ですか?
イソステアロイルグリセリルは一般的に安全性が高いとされていますが、過度な使用や個人差により皮�owsん炎などの反応が起こる可能性があります。使用前に医師に相談す...
1-(二苯甲基)-3,3-二氟-氮杂环丁烷の市場動向や研究トレンドはどうですか?
1-(二苯甲基)-3,3-二氟-氮杂环丁烷の市場動向は、医薬品や合成化学の研究分野で注目を集めています。新興研究は、該当化合物の合成改良と生体内での作用メカニズ...
3-チオフェンスチオールの物理化学的性質は何ですか?
3-チオフェンスチオールのCAS番号は7774-73-4です。結晶性の白色粉末で、分子量は122.17です。この化合物は水に微溶解し、エタノールやジクロロメタン...
2-Methyl-2-propanyl (2S)-2-(aminomethyl)-1-piperidinecarboxylateは安全ですか?
2-Methyl-2-propanyl (2S)-2-(aminomethyl)-1-piperidinecarboxylateは一定の安全性基準を満たしていま...
CAS番号1316822-90-8の化合物は安全ですか?
CAS番号1316822-90-8の化合物は安全性に関しては評価が不足していますが、一般的には生物学的に活性な物質であり、取り扱いには適切な安全防護措置が必要で...
Tert-butyl 2-(2-羟基乙基)哌嗪-1-羧酸はどのように保存すればよいですか?
Tert-butyl 2-(2-羟基乙基)哌嗪-1-羧酸は、冷暗所で保存し、直射日光から遠ざけてください。容器は密閉し、高湿度や高温を避けて保管してください。
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.














