在 100 K 下通过水分解实现外延石墨烯的堿诱导氢化。
Alkali-induced hydrogenation of epitaxial graphene by water splitting at 100 K.
机构信息
Dipartimento di Fisica, Università degli Studi della Calabria, 87036 Rende (Cs), Italy.
出版信息
J Chem Phys. 2013 Jan 28;138(4):044703. doi: 10.1063/1.4788619.
The coadsorption of potassium with water at 100 K on graphene/Pt(111) has been studied by high-resolution electron energy loss spectroscopy. The adsorption of alkali metals induces water splitting and the formation of C-H and C-OH groups. Such finding is of great interest for tailoring graphene-Pt electro-catalysts. Furthermore, the alkali-promoted dissociation of water molecules offers the possibility to attain a partial hydrogenation of the graphene sheet even at low temperature.
采用高分辨率电子能量损失谱研究了 100 K 时钾与水在石墨烯/Pt(111)上的共吸附。碱金属的吸附诱导了水分子的分裂和 C-H 和 C-OH 基团的形成。这一发现对于定制石墨烯-Pt 电催化剂具有重要意义。此外，碱促进水分子的离解提供了在低温下实现石墨烯片部分氢化的可能性。
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