物理化学学报 >> 1990, Vol. 6 >> Issue (05): 638-640.doi: 10.3866/PKU.WHXB19900524
钱道荪; 蔡东辰; 沈天憬
Qian Dao-Sun; Cai Dong-Chen; Shen Tian-Jing
Abstract: The transient ring currents of the RRDE n-InP semiconductor disk-gold ring irradiated with a light step from dark to 25 mW·cm~(-2) with the seven different rota-tion speeds between 590 and 7000 r. p. m. in 0.101 mol·L~(-1) K_4 Fe(CN)_6 have been studied Experimental data were fitted by the computer. The diffusion coefficient of [Fe(CN)_6]~(3-) ion found is D=3.3×10~(-6) em~2·s~(-1) and the theoratical collection efficiency calculated for thin-gap and thin-ring RRDE is N=0.20 these are in good agreement with the literature. The experimental value of ωτ_0 agree with the theoratical value.The agreement between the experiment and the theory suggests that the electrode reaction on n-InP is a simple photoelectro-chemical reaction, i.e.[Fe(CN)_6]~(4-)+h~+→[Fe(CO)_6]~(3-).
钱道荪;蔡东辰;沈天憬. n-InP旋转圆环圆盘电极在光跃下环暂态电流研究[J]. 物理化学学报, 1990, 6(05): 638-640.
Qian Dao-Sun; Cai Dong-Chen; Shen Tian-Jing. A Study of the Transient Ring Currents of the Rrde As n-InP Disc Irradiated with a Light Step[J]. Acta Phys. -Chim. Sin., 1990, 6(05): 638-640.
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