電位制御によるAuの多重双晶粒子の生成とAu表面の再構成 (特集:金ナノ構造)
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- 資料種別
- 記事
- 著者・編者
- 田中 虔一魯 大凌
- シリーズタイトル
- タイトル（掲載誌）
- 表面科学 = Journal of the Surface Science Society of Japan / 日本表面科学会 編
- 巻号年月日等（掲載誌）
- 26(10) 2005.10
- 掲載巻
- 26
- 掲載号
- 10
- 掲載ページ
- 585～592
- 掲載年月日（W3CDTF）
- 2005-10
- ISSN（掲載誌）
- 0388-5321
- ISSN-L（掲載誌）
- 0388-5321
- 出版事項（掲載誌）
- 東京 : 日本表面科学会
- 出版地（国名コード）
- JP
- 本文の言語コード
- jpn
- NDLC
- 対象利用者
- 一般
- 所蔵機関
- 国立国会図書館
- 請求記号
- Z15-379
- 連携機関・データベース
- 国立国会図書館 : 国立国会図書館雑誌記事索引
- 書誌ID（NDLBibID）
- 7689466
- 整理区分コード
- 632
- 要約等
- Formation of multi-twin Au particles on the electrode in electrolyte solution is strictly controlled by electrode potential, which is almost equal to the potential induced reconstruction of Au single crystal surfaces. Lattice shortening caused by negative electrode potential (SCE) is responsible for these two phenomena, which is essentially different from the crystal habit depending on the growth rate of crystal surfaces. Most fcc metals form multi-twin particles when the electrode potential keeps at negative potential (SCE), but the stability of the multi-twin particles formed on the electrode highly depends on the metals. Unstable multi-twin particles react with H<Sub>2</Sub>O to form single crystal oxide particles. Cu<Sub>2</Sub>O and NiO can not be thermodynamically formed at the potential for the formation multi-twin particle, but single crystals of Cu<Sub>2</Sub>O and of NiO are practically formed. When the electrode is kept at the OPD (over potential deposition) for Au ions and UPD (under potential deposition) for Cu ions on Au surface, CuAu alloy particles are grown by layer-by-layer deposition mechanism of Au and Cu ions. Although the electrode potential for the layer-by-layer deposition of Au and Cu is higher than the critical potential for the formation of multi-twin particles of Au and Cu, we can recognize the formation of multi-twin CuAu alloy particles. It is speculated that the adsorption of Cu<Sup>+</Sup> ion on Au layer may induce the lattice contraction so that the multi-twin alloy particles are formed.
- DOI
- 10.1380/jsssj.26.585
- オンライン閲覧公開範囲
- インターネット公開
- 連携機関・データベース
- 科学技術振興機構 : J-STAGE
- 要約等
- Formation of multi-twin Au particles on the electrode in electrolyte solution is strictly controlled by electrode potential, which is almost equal to the potential induced reconstruction of Au single crystal surfaces. Lattice shortening caused by negative electrode potential (SCE) is responsible for these two phenomena, which is essentially different from the crystal habit depending on the growth rate of crystal surfaces. Most fcc metals form multi-twin particles when the electrode potential keeps at negative potential (SCE), but the stability of the multi-twin particles formed on the electrode highly depends on the metals. Unstable multi-twin particles react with H<Sub>2</Sub>O to form single crystal oxide particles. Cu<Sub>2</Sub>O and NiO can not be thermodynamically formed at the potential for the formation multi-twin particle, but single crystals of Cu<Sub>2</Sub>O and of NiO are practically formed. When the electrode is kept at the OPD (over potential deposition) for Au ions and UPD (under potential deposition) for Cu ions on Au surface, CuAu alloy particles are grown by layer-by-layer deposition mechanism of Au and Cu ions. Although the electrode potential for the layer-by-layer deposition of Au and Cu is higher than the critical potential for the formation of multi-twin particles of Au and Cu, we can recognize the formation of multi-twin CuAu alloy particles. It is speculated that the adsorption of Cu<Sup>+</Sup> ion on Au layer may induce the lattice contraction so that the multi-twin alloy particles are formed.
- DOI
- 10.1380/jsssj.26.585
- オンライン閲覧公開範囲
- インターネット公開
- 関連情報（URI）
- 参照
- 「固液界面科学の将来展望」超高真空‐電気化学複合装置を用いた燃料電池用ナノ粒子カソード触媒の研究
- 参照
- Surface Structures on the Clean Platinum (100) SurfaceChloride adsorption at the Au(111) electrode surfaceIn situ scanning tunneling microscopy as a probe of adsorbate-induced reconstruction at ordered monocrystalline electrodes: carbon monoxide on platinum(100)Cu + Au alloy particles formed in the underpotential deposition region of copper in acid solutionsSingle‐Crystal Cu2 O Formation on Amorphous Carbon Electrode and Effect of Anions on the Crystal Habit of Cu2 O ParticlesCrystallography of decahedral and icosahedral particlesPotential-dependent reconstruction at ordered Au(100)-aqueous interfaces as probed by atomic-resolution scanning tunneling microscopyElucidating complex surface reconstructions with atomic-resolution scanning tunneling microscopy: Au(100)-aqueous electrochemical interfaceNucleation and growth of gold films on graphiteCrystallographic habit of gold particles grown on electrodes in acidic solutions at different electrode potentialsStructure and Stability of the (100) Surface of GoldCrystal habit of fcc metal particles controlled by electrode potential in solutionAu, Cu, Ag, Ni, and Pd Particles Grown in Solution at Different Electrode PotentialsOn the stability of Au(110)-(1 × 2) and -(1 × 3) reconstructed surfaces in contact with an aqueous solutionIn-situ observations of growth processes of multiply twinned particlesGold Particles Deposited on Electrodes in Salt Solutions under Different PotentialsDetermination of atom positions at stacking-fault dislocations on Au(111) by scanning tunneling microscopyEquilibrium structure of small gold crystalsThe shape and structure of gold particles grown at different electrode potentialsReview: <i>Dimensions of Ecology</i>, by Jonathan L. RichardsonReconstruction phenomena at metal-electrolyte interfacesDirect evidence for electrochemically induced surface reconstruction: Au (100)-[(5×20)→ (1×1)]The structure of small, vapor-deposited particlesDecahedral and icosahedral Cu-Au alloy particles grown under a controlled-potential region in acid solutionsSurface reconstruction in electrochemistry: Au(100-(5 × 20), Au(111)-(1 × 23) and Au(110)-(1 × 2)Real-space formation and dissipation mechanisms of hexagonal reconstruction on Au(100) in aqueous media as explored by potentiodynamic scanning tunneling microscopyReconstruction at ordered Au(110)-aqueous interfaces as probed by atomic-resolution scanning tunneling microscopyPotential-induced surface reconstruction of Au(100)The study of reconstructed electrode surfaces: Au(100)-(5×20)Room temperature surface diffusion mechanisms observed by scanning tunneling microscopyIn situ scanning tunneling microscopy of adsorbates on electrode surfaces: images of the (.sqroot.3.times..sqroot.3)R30.degree.-iodine adlattice on platinum(111)On the stability of reconstructed gold surfaces in an electrochemical cellIn situ scanning tunneling microscopy observations of the potential-dependent (1 × 2) reconstruction on Au(110) in acidic electrolytesAn in-situ scanning tunneling microscopy study of electrochemically induced “hex” ↔ (1 × 1) transitions on Au(100) electrodesThe crystallographic orientation of gold surfaces at the gold-aqueous solution interphasesStructural instability of ultrafine particles of metalsThe structure of small, vapor-deposited particlesMicrodiffraction and lattice resolution studies of fivefold symmetry gold particlesHigh resolution studies of small particles of gold and silverDifferent habits of Pt particles grown in salt solution at different electrode potentialsEpitaxial growth of metals on rocksalt faces cleaved in vacuum-2-Orientation and structure of gold particles formed in ultrahigh vaccum
- 連携機関・データベース
- 国立情報学研究所 : CiNii Research
- 提供元機関・データベース
- Japan Link Center雑誌記事索引データベースCrossrefCiNii Articles科学研究費助成事業データベース科学研究費助成事業データベースCrossref
- 書誌ID（NDLBibID）
- 7689466
- NII論文ID
- 130004784524