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[1] 本文肯定了银在碱性溶液中恒流阳极极化时在某一临界电流密度(1.5～3ma/cm~2)以上将出现相当于Ag_2O氧化成“Ag_2O_3”的充电第三平阶(Q_2~′);并发现充电第一平阶(Q_1,相当于Ag→Ag_2O)和第二平阶(Q_2,相当于Ag_2O→AgO)间的“小高峰”可以有各种过渡形态,相当于Ag_2O→AgO和Ag_2O→“Ag_2O_3”的竞争和排斥过程。 [2] 肯定了在小电流密度下AgO也可氧化成“Ag_2O_3”。 [3] 发现“Ag_2O_3”可分解成Ag_2O,也可分解成AgO。视条件而定。 [4] 发现大电流充电时,在Q_2~′终了后延长出O_2时间,则先促使“Ag_2O_3”继续形成,继又使它因分解减少,又不论电流密度大小,以及出氧时间长短,在出O_2后总能发现电极上存在有。“Ag_2O_3”。故推测在碱性溶液中,银上出氧时可能必须有“Ag_2O_3”的存在。 [5] 本文认为“Ag_2O_3”是价态高于二的银氧化物,在25℃的KOH溶液中极不稳定(0℃时较稳)。故它的成分不易确定。文献上常把Ag_7NO_(11)和“Ag_2O_3”混为一谈,本文对此问题是作了澄清,并讨论了两者电势相等的原因 。
[1] This paper confirms that when Ag is oxidized to Ag_2O_3 in a constant current anodic polarization of Ag in alkaline solutions, a third order of flatness will occur at a certain critical current density (1.5 ~ 3ma / cm ~ 2) (Q_2 ~ ’). It is also found that the “small peak” charged with the first order (Q_1, corresponding to Ag → Ag_2O) and the second order (Q_2, corresponding to Ag_2O → AgO) The competition and repulsion process between Ag 2 O → AgO and Ag 2 O → Ag 2 O 3. [2] confirmed that AgO can also be oxidized to “Ag 2 O 3” at low current densities. [3] found that “Ag_2O_3” can be decomposed into Ag_2O, can also be decomposed into AgO. Depending on the conditions. [4] found that when the high current charge, after Q_2 ~ ’to extend the extension of the O_2 time, the first to promote the “Ag_2O_3” continue to form, and then make it due to the decomposition to reduce, regardless of the current density and the length of oxygen, O_2 can always be found on the electrode. “Ag_2O_3”. Therefore, it is speculated that in alkaline solution, oxygen may need to have “Ag_2O_3” in the presence of oxygen. [5] This paper considers that “Ag 2 O 3” is a silver oxide with a valence higher than two and is very unstable in KOH at 25 ° C (stable at 0 ° C). Therefore, its composition is not easy to determine. Literature often mixed Ag_7NO_ (11) and “Ag_2O_3”, the paper clarified this issue, and discussed the reason for the potential equal.