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Pt基异质结构具有与单一相材料不同的物理和化学性质.本研究巧妙地设计了一种非金属g C3N4和Pt的异质结构,并将其负载在三维石墨烯网状结构上作为甲醇氧化的催化剂.由于Pt和g C3N4之间的协同作用,结合三维多孔石墨烯作为导电载体,为活性位点接触燃料分子提供了最大限度的可能,使得到的催化剂表现出异常优越的性能,包括高的催化活性、不同寻常的抗CO中毒能力,以及良好的稳定性.这些性能优于商业化的碳负载Pt催化剂以及三维石墨烯负载Pt催化剂.
The Pt-based heterostructures have different physical and chemical properties than the single-phase materials.In this study, we designed a heterogeneous structure of non-metallic g-C3N4 and Pt and supported it on a three-dimensional graphene network as methanol Oxidation catalyst.Because of the synergism between Pt and gC3N4, the combination of three-dimensional porous graphene as a conductive support provides the maximum possible access to the fuel molecules for the active site, resulting in unusually superior performance of the resulting catalyst including High catalytic activity, unusual ability to resist CO poisoning, and good stability, which are superior to the commercial carbon supported Pt catalysts and the three-dimensional graphene-supported Pt catalysts.