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A highly efficient PtCo/C electrocatalyst for the oxygen reduction reaction

机译：用于氧还原反应的高效PTCO / C电催化剂

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In this study, we report a novel and simple synthesis strategy to fabricate a leached PtCo/C electrocatalyst, which involves no hydrogen and protective agent in the preparation process. This method is composed of a chemical impregnation, a heat treatment and a leaching procedure, producing PtCo nanoparticles of 4.7 ± 0.5 nm, slightly larger than the size of the PtCo nanoparticles prepared by a tetraoctylammonium bromide (TOAB)-assisted approach in which TOAB serves as a protective agent preventing the agglomeration of the alloy nanoparticles. After the leaching, the as-synthesized leached PtCo/C catalyst demonstrates a comparable oxygen reduction reaction mass activity to that of the TOAB-assisted leached PtCo/C catalyst, which is ca. 2-fold enhancement compared with the in-house Pt(50 wt%)/C and commercial Pt/C (TKK) catalysts.
机译：在这项研究中，我们报告了一种新颖的简单合成策略，用于制造浸出的PTCO / C电催化剂，其涉及在制备过程中涉及氢和保护剂。该方法由化学浸渍，热处理和浸出程序组成，产生4.7±0.5nm的PtCo纳米颗粒，略大于通过Tab族溴化物（Tab）制备的Ptco纳米粒子的尺寸，其中TabaB族溴化物方法作为防止合金纳米颗粒的聚集的保护剂。浸出后，合成的浸出的PTCO / C催化剂显示出可比较的氧还原反应质量活性与Tab辅助浸出的浸出的PtCo / C催化剂的催化剂相当，即Ca。与内部Pt（50wt％）/ c和商业Pt / C（TKK）催化剂相比，2倍增强。

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