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Citation: WANG Sheng-Fu, DU Dan, ZOU Qi-Chao. Preparation of A pH Sensitive Film Gold Electrode[J]. Chinese Journal of Applied Chemistry, ;2002, 19(3): 255-258. shu

Preparation of A pH Sensitive Film Gold Electrode

1.
College of Chemistry and Material Science, Hubei University, Wuhan 430062

Corresponding author: WANG Sheng-Fu,
Received Date: 28 June 2001
Available Online: 22 November 2001
Fund Project: 国家自然科学基金资助项目(29971010) (29971010)湖北省自然科学基金资助项目(2000J007) (2000J007)

A self assembled supermolecular film gold electrode has been fabricated from Keggin type phosphormolybdate anions and L-cysteine based on the electrostatic attraction between PMo₁₂O₄₀^3- and surface NH₃⁺ of L-cysteine. Compared with PMo₁₂O₄₀^3-, the supermolecular film electrode is effective in a wider pH range and shows a good response to H⁺. The cyclic voltammetry and (ATR)FTIR techniques were used in the electrochemical characterization. The formation of the films and the pH sensor behavior have been discussed. The major properties of the pH film sensor have been demonstrated.
- phosphormolybdic anion,
- L-cysteine,
- self-assembled supermolecular film,
- pH potential sensor
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