Azizi Sadegh, Rozati Seyed Mohammad, Askari Mohammad Bagher, Salarizadeh Parisa
Department of Physics, Faculty of Science, University of Guilan, PO Box 41335-1914, Rasht, Iran.
Department of Semiconductor, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran.
J Phys Condens Matter. 2024 Sep 12;36(49). doi: 10.1088/1361-648X/ad7436.
The ethanol oxidation process in fuel cells is most efficient when conducted by platinum based catalysts. Our research team endeavored to find affordable and efficient catalysts, synthesizing catalysts based on metal oxides of nickel and molybdenum in the form of NiO/MoOand NiO/MoOhybridized with activated carbon obtained from the wheat husk (ACWH) through a hydrothermal method. After precise physical characterization, the capability of these catalysts in the ethanol oxidation process was measured through electrochemical analyses in an alkaline environment. The presence of ACWH in the catalyst structure significantly improves the active surface and electrocatalytic activity. NiO/MoO/ACWH with a current density of 16 mA cmat a peak potential of 0.55 V and 93% cyclic stability after 5000 alternate CV cycles, can be an appealing, relatively efficient, and stable option in ethanol oxidation.
当由铂基催化剂进行时，燃料电池中的乙醇氧化过程效率最高。我们的研究团队致力于寻找经济高效的催化剂，通过水热法合成了基于镍和钼的金属氧化物的催化剂，其形式为NiO/MoO以及与从小麦壳中获得的活性炭（ACWH）杂化的NiO/MoO。经过精确的物理表征后，通过在碱性环境中的电化学分析来测量这些催化剂在乙醇氧化过程中的能力。催化剂结构中ACWH的存在显著改善了活性表面和电催化活性。在5000次交替循环伏安循环后，电流密度为16 mA cm、峰值电位为0.55 V且循环稳定性为93%的NiO/MoO/ACWH在乙醇氧化方面可能是一个有吸引力、相对高效且稳定的选择。
