采用密度泛函理论(DFT)方法结合周期性平板模型,研究了二甲醚(DME)分子在Pt(100)表面上的吸附.通过对不同吸附位(顶位、空位和桥位)下的几何结构、吸附能和mulliken电荷布局计算发现,吸附后 C - O 键和 C - H 键都有不同程度的伸长, top位的吸附能最大, hcp位最小;top位吸附有利于 C - O 键的断裂, bri位吸附则更利于 C - H 键的断裂.
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