摘要
在苯胺浓度为1.0mol·dm^(-3)的盐酸溶液中用电化学聚合法制得单分子聚苯胺膜电极.在该修饰电极上,抗坏血酸在0.01mol·dm^(-3)盐酸底液中有一线性扫描催化氧化波,其峰电位为+0.270V(VS、SCE),峰电流与抗坏血酸浓度在 10^(-2)～10^(-5)mol·dm^(-3)范围内呈线性关系.文中详细地探讨了该波的性质,证实它是一个不可逆波,并且测定了α_An,k_s,D_R值.
Monolayer PANI film modified electrode was prepared by electrochemical polymerization in HCl solution containing 1.0mol ·dm-3 aniline monomer. Ascorbic acid has a catalytic oxidation wave on linear potential sweep at the modified electrode in 0.01mol ddddddddd dm-3 HCl solution. The peak potential of the wave is 0.270V (vs. SCE). The peak current of the wave has a linear relation with the concentration of ascorbic acid in the range of 10-2-10-5mol·dm-3. The oxidation wave was found to be a irreversible wave. The values of αAn, ks, DR were deduced from experimental data.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1995年第11期1124-1130,共7页
Acta Chimica Sinica
基金
国家自然科学基金
南京大学分析测试中心资助项目.
