https://ph02.tci-thaijo.org/index.php/SIAM <p>Science and Innovation of Advanced Materials <span style="display: inline !important; float: none; background-color: #ffffff; color: #000000; cursor: text; font-family: 'Noto Sans',Arial,Helvetica,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;">(SIAM)</span> is an official journal of Materials Research Society-Thailand.</p> <p>&nbsp;</p> The Materials Research Society-Thailand en-US SIAM: Science and Innovation of Advanced Materials 2773-9333 https://ph02.tci-thaijo.org/index.php/SIAM/article/view/254070 <p>Co-doped Fe₂O₃ nanoparticles were synthesized by the co-precipitation method. These crystalline nanostructures were characterized using X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscope (TEM). The electrochemical characteristics include charge–discharge cycling, which improves the conductivity and capacitance for the high-performance supercapacitor. The CV analysis of the pure Fe₂O₃ and Co-doped Fe₂O₃ electrode was distinctive in the 1 M KOH solution case. The nanoparticle size electrode reveals enhanced specific capacitance compared to Co-doped Fe₂O₃ and Fe₂O₃ to the electrode has a specific capacitance of about 33.50 F×g^-1 and 13.74 F×g^-1 with a scan rate 5 mV×s^-1.</p> <p> </p> <p><strong>Keywords: </strong>Supercapacitor, Co-precipitation method, Electrochemical, Energy storage</p> Aridtha Chaloemram Asanee Somdee Surangkana Wanapop Copyright (c) 2024 SIAM: Science and Innovation of Advanced Materials 2024-08-13 2024-08-13 4 2 67004 67004