Review-Solution Electrochemical Process for Fabricating Metal Oxides and the Thermodynamic Design
Review-Solution Electrochemical Process for Fabricating Metal Oxides and the Thermodynamic Design
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金属氧化物制造电化学工艺及热力学设计综述
DOI：
10.1149/1945-7111/ac371a
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发表时间：
2021
影响因子：
3.9
通讯作者：
Shinagawa Tsutomu
中科院分区：
文献类型：
--
作者：
Izaki Masanobu;Khoo Pei Loon;Shinagawa Tsutomu
水溶液中的电化学过程广泛用于制备金属、合金、复合材料、金属氧化物和化合物。为了理解和设计电化学过程，研究其可溶性化学物质、电位-pH图和基于热力学绘制的溶解度曲线至关重要。在这篇综述中，平衡电极电位，临界pH值，和溶解的化学物种有关的氧化还原，酸碱，配体交换反应，除了基于标准吉布斯自由能的计算首先简要提及。随后描述了金属和金属化合物的平衡电极电势的变化，如在用于Cu（In，Ga）Se 2太阳能电池应用的Cu-In-Se前体的电化学制备中所证明的。此外，通过给出金属氧化物的直接电沉积、杂质的化学引入使得特性控制成为可能、Zn的化学浴沉积过程（CBD）和Zn的化学浴沉积过程（CBD）的实例，讨论了可溶性化学物种、电位-pH图和溶解度曲线的优点和有用性。Cu（In，Ga）Se 2太阳能电池中的（S，O，OH）缓冲层，最后是制备CuO/Cu 2 O双层膜的电化学工艺设计。
Electrochemical processes in aqueous solutions are widely used for preparation of metals, alloys, composites, metal oxides and compounds. For understanding and designing an electrochemical process, it is crucial to study its soluble chemical species, potential-pH diagram, and solubility curves drawn based on thermodynamics. In this review, equilibrium electrode potentials, critical pH values, and dissolved chemical species related to the oxidation-reduction, acid-base, and ligand-exchanging reactions, in addition to the calculation based on standard Gibbs free energy are first briefly mentioned. This is followed by the description of the change in equilibrium electrode potentials of metal and metal compounds as demonstrated in the electrochemical preparation of the Cu–In–Se precursor for the Cu (In, Ga) Se 2 solar cell application. Additionally, the advantages and usefulness of soluble chemical species, potential-pH diagram, and solubility curves are discussed, by giving examples of direct electrodepositions of metal oxides, the chemical introduction of impurities into ZnO enabling characteristic control, the chemical bath deposition process (CBD) for Zn (S, O, OH) buffer layer in Cu (In, Ga) Se 2 solar cell, and lastly, the design of the electrochemical process for fabricating CuO/Cu 2 O bilayers.