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一、前言关于铝在酸性介质中的腐蚀及其缓蚀剂已有一些报导,但所论及的多半是有机缓蚀剂,而对无机缓蚀剂研究甚少。铝作为高功率电池的阳极,有自放电速度较快和负差效应大等缺点,需要寻找对阳极反应影响较小的阴极型缓蚀剂。汞盐曾被广泛用作锌锰电池的缓蚀剂,Hg~(2+)在铝表面还原析出后,可提高铝电池的放电性能。出于上述考虑,本工作采用失重法,极化曲线法和X射线衍射研究Hg(NO_3)_2对铝在盐酸中的缓蚀行为,探索用于铝电池及作为铝酸洗缓蚀剂的可能性。二、实验方法
I. Preface There have been some reports about the corrosion of aluminum in acidic media and its corrosion inhibitors. However, most of them are organic corrosion inhibitors, but little is known about inorganic corrosion inhibitors. As the anode of high-power battery, aluminum has the disadvantages of faster self-discharge rate and large negative difference effect. It is necessary to find a cathode inhibitor that has little effect on the anode reaction. Mercury salt has been widely used as a corrosion inhibitor for zinc-manganese batteries. After Hg 2+ is reduced and precipitated on the aluminum surface, the discharge performance of aluminum batteries can be improved. In view of the above considerations, this work using the weight loss method, polarization curve method and X-ray diffraction Hg (NO_3) _2 of aluminum in hydrochloric acid in the inhibition of corrosion behavior, to explore for aluminum batteries and as aluminum pickling corrosion inhibitor may Sex. Second, the experimental method