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Citation: Kang Qing-He, Sheng Li-Qin, Sun Ren-De, Zheng De-Shui, Chen Ping. The Reduction of Siver Complex on Catalytic Nuclei[J]. Acta Physico-Chimica Sinica, ;1994, 10(11): 986-991. doi: 10.3866/PKU.WHXB19941105 shu

The Reduction of Siver Complex on Catalytic Nuclei

1.
Institute of Photographic Chemistry,Academia Sinica,Beijing 100101

Received Date: 26 September 1993
Available Online: 15 November 1994

The reduction of silver complex on different catalytic nuclei (Ag, PdS, Pt, and CoS) by hydroquinone was studied. Experimental results showed that the effect of different catalytic nuclei on the reaction rate are quite different, the sequence in the order of decreasing rate is Ag>PdS>Pt>CoS. It was also revealed that the reaction rate is proportional to the concentrations of the silver complex and hydroquinone. An electro chemical model cell, made up of silver or platinum electrode used as catalytic nuclei, silver complex and hydroquinone developer as electrolytes, was devised to measure the cathodic and anodic currents. Experiment showed that the change of current density measured is consistent with the rate of the raection. This result supports the theory of physical development.
- Silver complex,
- Catalytic nuclei,
- Physical development
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