Electrochemical Deposition and Formation Mechanism of Single-Crystalline Cu<sub>2</sub>O Octahedra on Aluminum

<table>SEM images of the as-deposited specimen with different mole ratios of lactic acid/CuSO<sub>4</sub>: (a) <svg height="11.1" id="M14" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 82.3125 11.1" width="82.3125" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,11.1)">
<g transform="translate(72,-63.12)">
<text transform="matrix(1,0,0,-1,-71.95,63.35)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑅</tspan>
<tspan style="font-size: 12.50px; " x="12.715551" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="24.755939" y="0">0</tspan>
<tspan style="font-size: 12.50px; " x="31.007441" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="34.13319" y="0">7</tspan>
<tspan style="font-size: 12.50px; " x="40.384689" y="0">5</tspan>
<tspan style="font-size: 12.50px; " x="46.636189" y="0">/</tspan>
<tspan style="font-size: 12.50px; " x="50.112022" y="0">0</tspan>
<tspan style="font-size: 12.50px; " x="56.363525" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="59.489273" y="0">4</tspan>
</text>
</g>
</g>
</svg>; (b) <svg height="11.1" id="M15" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 74.5 11.1" width="74.5" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,11.1)">
<g transform="translate(72,-63.12)">
<text transform="matrix(1,0,0,-1,-71.95,63.35)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑅</tspan>
<tspan style="font-size: 12.50px; " x="12.715551" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="24.755939" y="0">4</tspan>
<tspan style="font-size: 12.50px; " x="31.007441" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="34.13319" y="0">5</tspan>
<tspan style="font-size: 12.50px; " x="40.384689" y="0">/</tspan>
<tspan style="font-size: 12.50px; " x="43.860523" y="0">0</tspan>
<tspan style="font-size: 12.50px; " x="50.112022" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="53.237774" y="0">4</tspan>
</text>
</g>
</g>
</svg>; (c) <svg height="11.0375" id="M16" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 62.775002 11.0375" width="62.775002" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,11.0375)">
<g transform="translate(72,-63.17)">
<text transform="matrix(1,0,0,-1,-71.95,63.4)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑅</tspan>
<tspan style="font-size: 12.50px; " x="12.715551" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="24.755939" y="0">6</tspan>
<tspan style="font-size: 12.50px; " x="31.007441" y="0">/</tspan>
<tspan style="font-size: 12.50px; " x="34.483273" y="0">0</tspan>
<tspan style="font-size: 12.50px; " x="40.734776" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="43.860523" y="0">4</tspan>
</text>
</g>
</g>
</svg> while other parameters are kept constant.</table>

Journal of Analytical Methods in Chemistry

fig3

Figure 3

Figure 3: Electrochemical Deposition and Formation Mechanism of Single-Crystalline Cu<sub>2</sub>O Octahedra on Aluminum 

Journal of Analytical Methods in Chemistry

Electrochemical Deposition and Formation Mechanism of Single-Crystalline Cu2O Octahedra on Aluminum

Figure 3

Electrochemical Deposition and Formation Mechanism of Single-Crystalline Cu₂O Octahedra on Aluminum