Nanocrack Formation in Hematite through the Dehydration of Goethite and the Carbon Infiltration from Biotar

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td align="left" rowspan="2">Sample ore</td><td align="center" rowspan="2">Particle size (<svg height="9.6750002" id="M5" style="vertical-align:-2.29482pt" version="1.1" viewbox="0 0 9.6374998 9.6750002" width="9.6374998" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,9.675)">
<g transform="translate(72,-64.26)">
<text transform="matrix(1,0,0,-1,-71.95,66.6)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝜇</tspan>
</text>
</g>
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</svg>m)</td><td align="center" rowspan="2">CW (mass%)</td><td align="center" rowspan="2">T. Fe (mass%)</td><td align="center" rowspan="2">R.O. (mass%)</td><td align="center" colspan="2">BET Surface area (m<sup>2</sup>/g)</td></tr><tr><td align="center">Before dehydration</td><td align="center">After dehydration</td></tr><tr><td align="center" colspan="7"><hr/></td></tr><tr><td align="left">Goethite ore</td><td align="center">355<svg height="5.7874999" id="M6" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 10.825 5.7874999" width="10.825" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,5.7875)">
<g transform="translate(72,-67.37)">
<text transform="matrix(1,0,0,-1,-71.95,67.42)">
<tspan style="font-size: 12.50px; " x="0" y="0">∼</tspan>
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</svg>500</td><td align="center">9.02</td><td align="center">57.2</td><td align="center">24.58</td><td align="center">16.58</td><td align="center">74.90</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr><tr class="table-fn"><td>CW: Combined water, R.O.: Removable oxygen.<br/></td></tr></table>

Goethite sample ore used in the experiments.

Journal of Nanomaterials

tab1

Table 1

Table 1: Nanocrack Formation in Hematite through the Dehydration of Goethite and the Carbon Infiltration from Biotar 