丙炔醇聚合股对铁在酸性溶液中的缓蚀作用

应用电化学交流阻抗谱技术研究了Ｆｅ／Ｈ_２ＳＯ_４与Ｆｅ／Ｈ_２ＳＯ_４＋Ｈ_２Ｓ体系中丙炔醇（ＰＡ）聚合膜的形成及其缓蚀作用,同时利用ＳＥＭ、ＡＦＭ及ＥＤＸ对ＰＡ聚合不同时期铁表面腐蚀形貌进行观测与成分分析．结果表明,Ｆｅ／Ｈ_２ＳＯ_４与 Ｆｅ／Ｈ_２ＳＯ_４＋ Ｈ_２Ｓ体系中 ＰＡ可逐渐聚合成膜,从而有效抑制基体的腐蚀,使电极表面较为平整,微米尺度下呈现规则的块状结构;但Ｆｅ／Ｈ_２ＳＯ_４体系中宏观上ＰＡ并未形成连续的保护膜,导致电极表面局部发生腐蚀;而Ｆｅ／Ｈ_２ＳＯ_４＋Ｈ_２Ｓ体系中,Ｈ_２Ｓ、ＨＳ－在电极表面的吸附减缓了ＰＡ聚合成膜,但长时间腐蚀后,由于硫化物的生成覆盖在ＰＡ聚合膜上,使其具有长期缓蚀效能．     

[Ru(CNCl)_2]~(n+)络合物电子结构的DV-Xα研究

应用量子化学ＤＶＸα方法对钌系氰氯络合物进行了系统的理论计算和解析，确定了相应的稳定几何形态和微观电子结构，为合成、应用和深入研究它们的性能提供了重要的理论依据．     

H~2S对硫酸溶液中铁腐蚀作用的CNDO/2研究

动电位扫描得出工业纯铁在含H~2S的H~2SO~4溶液中腐蚀的电化学行为。应用CNDO/2法确定了阴、阳极电位下H~2S,HS^-在金属Fe晶面上的稳定吸附取向与最佳吸附间距,通过对吸附物总能量、结合能、净电荷分布的计算,得出H~2S体系阴、阳极反应被加速的微观机制。阳极电位下,大量HS^-为S原子的平行吸附方式,HS^-负电荷大部分向Fe转移,促进铁的溶解。阴极电位下,少量H~2S则为H原子的平行吸附方式,Fe表面负电荷向H~2S分子中与Fe作用的H转移,促进析氢。在CNDO/2法计算的基础上,圆满地解释了实验结果。     

H_2、O_2和CO在PPRUC络合物上吸附的DV-X_α研究

中图分类号Ｏ６４１４文献标识码Ａ导电聚合物是现代科学技术理论发展中一个相当活跃的研究领域．近年来，新的导电高分子材料不断涌现，正日益朝着具有弹性、塑性、导电性、导热性、导磁性、抗蚀性、质量轻及易加工等方向发展．在众多的导电聚合物家族中，掺杂聚吡咯因...     

丙炴醇聚合膜对铁在酸性溶液中的缓蚀作用

The formation of polymer film of propargyl alcohol(PA) and its protective ability against corrosion in Fe/H_2SO_4 and Fe/H_2SO_4+H_2S systems have been investigated using impedance measurement. The composition and morphology of the corrosion surface of iron, on which PA polymerized at different bines, were obtained with the aid of SEM and AFM as well as EDX. The results showed that PA polymerized into compact polymer film in Fe/H_2SO_4 and Fe/ H_2SO_4 + H_2S systems, which made iron surface smooth and have a morphologies of regular square structure in microscopic level. In Fe/H_2SO_4 system, macroscopic continuous polymer film of PA was not formed leading to local corrosion on electrode surface. In Fe/H_2SO_4 +H_2S system, the adsorption of H_2S and HS - on electrode surface slowed down the formation of polymer film of PA. However, the iron sulfide, produced after a longer time, increased the continuity of the polymer film of PA and therefore, the polymer film could perform its long-te...更多rm inhibition action.