Si, Conghui Zhang, Jie Wang, Ying Ma, Wensheng Gao, Hui Lv, Lanfen Zhang, Zhonghua Nanoporous Platinum/(Mn,Al)<sub>3</sub>O<sub>4</sub> Nanosheet Nanocomposites with Synergistically Enhanced Ultrahigh Oxygen Reduction Activity and Excellent Methanol Tolerance At present, metal/metal oxide composites are considered as potential oxygen reduction reaction (ORR) catalysts for energy-related applications like fuel cells. Here, we fabricated a high-activity, low Pt loading ORR electrocatalyst composed of nanoporous Pt (np-Pt) in intimate contact with lamellar (Mn,Al)<sub>3</sub>O<sub>4</sub> nanosheet (NS). In comparison to Pt/C (Johnson Matthey), the np-Pt/(Mn,Al)<sub>3</sub>O<sub>4</sub> NS catalyst shows a 11.5-fold enhancement in the mass-normalized ORR activity and much better methanol tolerance because of the metal–support interactions between np-Pt and (Mn,Al)<sub>3</sub>O<sub>4</sub>. Furthermore, the combination of electrochemical experiments with theoretical calculations verifies that the ORR on the np-Pt/(Mn,Al)<sub>3</sub>O<sub>4</sub> NS catalyst is a direct 4e<sup>–</sup> pathway in the alkaline solution. In addition, the electrocatalytic mechanisms have also been rationalized by density functional theory (DFT) calculations. calculations verifies;fuel cells;Synergistically Enhanced Ultrahigh Oxygen Reduction Activity;electrocatalytic mechanisms;mass-normalized ORR activity;Excellent Methanol Tolerance;Mn;oxygen reduction reaction;energy-related applications;NS;DFT;nanoporous Pt;Pt loading ORR electrocatalyst;methanol tolerance;electrochemical experiments;np-Pt 2017-01-05
    https://acs.figshare.com/articles/journal_contribution/Nanoporous_Platinum_Mn_Al_sub_3_sub_O_sub_4_sub_Nanosheet_Nanocomposites_with_Synergistically_Enhanced_Ultrahigh_Oxygen_Reduction_Activity_and_Excellent_Methanol_Tolerance/4547206
10.1021/acsami.6b13840.s001