Askari Mohammad Bagher, Rozati Seyed Mohammad, Di Bartolomeo Antonio
Department of Physics, Faculty of Science, University of Guilan, Rasht P.O. Box 41335-1914, Iran.
Department of Physics "E. R. Caianiello" and Interdepartmental Center NANOMATES, University of Salerno, 84084 Fisciano, SA, Italy.
Nanomaterials (Basel). 2022 Apr 2;12(7):1187. doi: 10.3390/nano12071187.
Recently, the use of metal oxides as inexpensive and efficient catalysts has been considered by researchers. In this work, we introduce a new nanocatalyst including a mixed metal oxide, consisting of manganese oxide, cerium oxide, and reduced graphene oxide (MnO-CeO-rGO) by the hydrothermal method. The synthesized nanocatalyst was evaluated for the methanol oxidation reaction. The synergetic effect of metal oxides on the surface of rGO was investigated. MnO-CeO-rGO showed an oxidation current density of 17.7 mA/cm in overpotential of 0.51 V and 91% stability after 500 consecutive rounds of cyclic voltammetry. According to these results, the synthesized nanocatalyst can be an attractive and efficient option in the methanol oxidation reaction process.
最近，研究人员考虑将金属氧化物用作廉价且高效的催化剂。在这项工作中，我们通过水热法引入了一种新型纳米催化剂，它是一种由氧化锰、氧化铈和还原氧化石墨烯组成的混合金属氧化物（MnO-CeO-rGO）。对合成的纳米催化剂进行了甲醇氧化反应评估。研究了金属氧化物在rGO表面的协同效应。MnO-CeO-rGO在0.51 V的过电位下显示出17.7 mA/cm的氧化电流密度，并且在连续500轮循环伏安法后具有91%的稳定性。根据这些结果，合成的纳米催化剂在甲醇氧化反应过程中可能是一个有吸引力且高效的选择。
