TY - JOUR AU - Zhao, Hongxiao AU - Zheng, Zhi AU - Li, Jing AU - Jia, Huimin AU - Wong, Ka-wai AU - Zhang, Yidong AU - Lau, WoonMing PY - 2013/11/16 Y2 - 2024/03/28 TI - Substitute of Expensive Pt with Improved Electrocatalytic Performance and Higher Resistance to CO Poisoning for Methanol Oxidation: the Case of Synergistic Pt-Co3O4 Nanocomposite JF - Nano-Micro Letters JA - Nano-Micro Lett VL - 5 IS - 4 SE - Articles DO - 10.1007/BF03353761 UR - https://nmlett.org/index.php/nml/article/view/649 SP - 296-302 AB - <p>In this paper, Pt-Co<sub>3</sub>O<sub>4</sub> nanocomposite was synthesized by a sol-gel process combined with electrodeposition method. Its electrocatalytic activity towards methanol oxidation was investigated at room temperature using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and current density-time curve. It is found that the resultant Pt-Co<sub>3</sub>O<sub>4</sub> catalysts with minute amount of Pt exhibite attractive electrocatalytic activity for methanol oxidation reaction (MOR) but with a high resistance CO poisoning due to the synergistic effects from Pt and Co<sub>3</sub>O<sub>4</sub>. Together with the low manufacturing cost of Co<sub>3</sub>O<sub>4</sub>, the reported nanostructured Pt-Co<sub>3</sub>O<sub>4</sub> catalyst is expected to be a promising electrode material for direct methanol fuel cells (DMFC).</p> ER -