書誌事項
- タイトル別名
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- Nonlinear Phenomena. Modulation of Electrochemical Oscillations in an H2O2-H2SO4-Pt System by External Potential Pulses.
- H2O2-H2SO4-Ptケイ ニ オケル デンキ カガク シンドウ ゲンショウ ノ ガイブ デンイ パルス ニ ヨル ヘンチョウ
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抄録
Two electrochemical oscillations, named oscillation A and B, are observed in H2O2 reduction reaction on Pt electrodes in aqueous acidic solutions. Oscillation A appears in potentials just before H2 evolution, whereas oscillation B appears in the potential region of H2 evolution. Both oscillations are caused by alternate occurrence of H2O2 reduction and suppression of the H2O2 reduction by adsorbed hydrogen (upd-H). It is found that synchronized current oscillations are induced by external potential pulses when they are positive and located in the low-current state of oscillation. This result can be explained to be due to removal of upd-H by the positive potential pulses which lead to positive shifts of the electrode potential. The relation between the duration of the low-current state and the peak current of the high-current state is investigated and the result supports our previously propose oscillation mechanism.
収録刊行物
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- 化学工学論文集
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化学工学論文集 25 (4), 510-515, 1999
公益社団法人 化学工学会
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詳細情報
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- CRID
- 1390001204508301440
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- NII論文ID
- 10006949759
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- NII書誌ID
- AN00037234
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- ISSN
- 13499203
- 0386216X
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- NDL書誌ID
- 4794765
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
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- 抄録ライセンスフラグ
- 使用不可