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Citation: Xu Shukai, Zhang Yingzhou, Zhou Shaomin. ELECTROCATALYTIC REDUCTION OF C₂H₂ TO C₂H₂ IN FERROUS-MOLYBDATE SYSTEMS[J]. Chinese Journal of Applied Chemistry, ;1987, 4(2): 42-45. shu

ELECTROCATALYTIC REDUCTION OF C₂H₂ TO C₂H₂ IN FERROUS-MOLYBDATE SYSTEMS

1.
Department of Chemistry, Institute of Physical Chemistry, Xiamen University

Corresponding author: Xu Shukai,
Received Date: 21 January 1986
Available Online: 10 September 1986

The electrochemical reduction of C₂H₂ to C₂H₄ in 0.1M NaClO₄ DMF solution containing FeCl₂ and K₂MoS₄ has been investigated by using potentiostatic electrolysis, cyclic voltammetry and a.c.impedance methods. The results showed that the ferrous-molybdate systems exhibited an appreciable electrocatalytic activity and high selectivity in reducing C₂H₂ to C₂H₄ when the potential of the graphite electrode was at-1.50V (vs.SCE). It was suggested that the reaction Mo(Ⅵ)→Mo(Ⅴ) takes place at -0.5——1.0V and the reaction Mo(Ⅴ) to Mo(Ⅲ) at -1.0——1.5V,which proceeds through a consecutive electron transfer mechanism, forming a complex of Mo(Ⅲ) as electorcatalytically active species, faciliating the electron transfer of the reaction.
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ELECTROCATALYTIC REDUCTION OF C₂H₂ TO C₂H₂ IN FERROUS-MOLYBDATE SYSTEMS