论文部分内容阅读
一、前言电解液中的阴离子对电沉积的晶形有很大的影响。龟山直人指出~〔1〕:在氯化物络盐中沉积出的Ag、Cu、Zn、Cd无纤维态,且晶粒细小,而在AgNO_3+HNO_3、CuSO_4+H_2SO_4、Zn(CH_3CO2)_2中析出的则有纤维态。G1ocker与Kaup指出~ 〔2〕:从硫酸铜中电沉积出的铜微晶有特征的纤维轴取向,而铜从氯化物溶液中电沉积出时,微晶是不定向的,沉积物没有织构。从硫酸锰硫酸溶液中电沉积出的电解二氧化锰一般是无定形的,但从氯化锰盐酸溶液,硝酸锰硝酸溶液,高氯酸锰高氯酸溶液中却能电沉积出纤维状的电解二氧化锰(简称FEMD)。
I. INTRODUCTION Anion in electrolyte has a great influence on the crystal form of electrodeposition. Kameyama straight pointed out that [1]: Ag, Cu, Zn, Cd deposited in the chloride complex salt no fiber state, and fine grains, and in AgNO_3 + HNO_3, CuSO_4 + H_2SO_4, Zn (CH_3CO2) _2 There are precipitated fiber state. G1ocker and Kaup pointed out that [2]: Copper crystallites deposited from copper sulphate have a characteristic axial orientation of the fiber axis. When copper is electrodeposited from a chloride solution, the crystallites are non-oriented and the deposit has no texture Structure. Electrolytic manganese dioxide electrodeposited from manganese sulfate sulfuric acid solution is generally amorphous, but from manganese chloride hydrochloric acid solution, nitric acid nitrate solution, manganese perchlorate perchloric acid solution can be electrodeposited fibrous Electrolytic manganese dioxide (referred to as FEMD).