碱锰电池代汞缓蚀剂的研究

合成了一种壳聚糖衍生物GTCC ,并用红外分析和热重分析方法对产物进行表征。首次用壳聚糖衍生物GTCC作碱锰电池的代汞缓蚀剂。通过析氢实验 ,用电动电位扫描方法研究了锌在碱溶液中的腐蚀行为和GTCC对锌的缓蚀行为。实验结果表明 :GTCC能减缓锌在 40 %KOH溶液中的腐蚀 ,对电池阴极反应过程中的析氢有明显的抑制作用 ,提高了析氢过电位 ,证实GTCC为阴极型缓蚀剂 ,GTCC的缓蚀效果与其加入量有关 ,在实验范围内以 0 .0 5 % (质量百分数 )为最佳

Study on Hg-substituted inhibitor for alkaline zinc manganese battery

The derivant of chitosan was prepared and was characterized by infrared(IR) spectroscopy and thermogravimetric analysis(TGA).The Glycidyl Trimethylammionium Choride Chitosan (GTCC) was firstly used as the Hg substituted inhibitor for alkaline manganese battery. According to the H 2 gassing experiment, the corrosion behaviors of zinc in 40% KOH solution and the inhibiting behaviors of GTCC to zinc were investigated by means of dynamic potential scanning. The results show that GTCC can reduced the corrosion of zinc in 40% KOH solution and inhibit the H 2 gassing obviously during cathode reaction process while the H 2 gassing overpotential is also increased. Therefore, GTCC is proved to be a cathode inhibitor. The inhibiting effect of GTCC is related to its adding amount, and the optimized content is 0.05%(mass percentage)within experimental range.