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X—射线光电光谱表明:在有无电解质和酸存在的情况下,炭上金氰化物的吸附以同一机理进行.虽然被吸附的金氰化物的本质尚不清楚,但是可以看出,这一机理有这样一个最初的吸附阶段:此阶段包括离子偶M~(n+)[Au(CN)_2~-]_n的吸附(这里M~(n+)是金属离子,如Na~+、K~+和Ca~(++)离子),这种离子偶在吸附介质中比之Au(CN)_2~-阴离子有较低的溶解度.随之是还原阶段,在此阶段生成一种准化学计量的Au(CN)_x表面物质,或生成一种聚集型的金化合物.
X-ray photoelectron spectroscopy showed that the adsorption of gold cyanide on carbon proceeds in the same mechanism in the presence of electrolytes and acids, although the nature of the adsorbed gold cyanide is not clear, but it can be seen that this The mechanism has such an initial adsorption stage: this stage involves the adsorption of M ~ (n +) [Au (CN) _2 ~ -] _n ions (where M n + is a metal ion such as Na ~ +, K + And Ca ~ (++) ions), this ion pair has a lower solubility in the sorption medium than Au (CN) _2 ~ -anion, followed by a reduction phase at which a quasi-stoichiometric Au (CN) _x surface material, or to produce an aggregated gold compound.