A facile and effective method is developed for the fabrication of ideal support and corresponding excellent catalysts. After spontaneous deposition of MnO₂ onto electrospun carbon nanofibers (CNFs) in a solution of KMnO₄ and subsequent thermal annealing, MnO-CNF hybrids with significantly enhanced graphitic structure and homogeneous surfaces defects are obtained. Further treatment with the solutions of H₂PtCl₆ and NaBH₄ affords the resulting catalysts with codeposited Pt and MnO₂ nanoparticles. To the best of our knowledge, it is the first time to simultaneously realize the combination of enhanced graphitization, uniform surface defects, and self N-doping of the carbon support materials. Compared to commercial Pt/XC72R and the counterparts without catalytic graphitization, Pt/MnO₂-CNF exhibits significantly improved electrochemical active surface area, better CO tolerance for methanol electro-oxidation and excellent electrochemical durability.

开发了一种简便有效的方法来制造理想的载体和相应的优良催化剂。在KMnO ₄溶液中将MnO ₂自发沉积到电纺碳纳米纤维（CNF）上并随后进行热退火之后，获得了具有显着增强的石墨结构和均匀表面缺陷的MnO-CNF杂化体。用H ₂ PtCl ₆和NaBH ₄溶液进行进一步处理，得到的催化剂具有共沉积的Pt和MnO _2。纳米粒子。据我们所知，这是第一次同时实现增强的石墨化，均匀的表面缺陷和碳载体材料的自N掺杂的组合。与商业化的Pt / XC72R和没有催化石墨化的同类产品相比，Pt / MnO ₂ -CNF的电化学活性表面积显着提高，甲醇电氧化的CO耐受性更高，并且电化学耐久性优异。