[锑和硫修饰铂电极上1,3 - 丁二醇氧化的原位傅里叶变换红外光谱研究]
[In situ FTIR spectrocopic investigations of 1,3-butanediol oxidation on Sb and S modified Pt electrodes].
作者信息
Wu Q, Yang Y, Zhou Z, Xiao X, Cehn S, Sun S
机构信息
Dept. of Chem., State Key Lab for Phy. Chem. of the Solid Surf., Xiamen University, 361005 Xiamen.
出版信息
Guang Pu Xue Yu Guang Pu Fen Xi. 2000 Oct;20(5):612-3.
In the present paper, we studied the surface structure effect of Pt electrode modified with antimony and sulfur adatoms towards 1,3-Butanediol oxidation. The results demonstrated that the modification of Sb and S both inhibited the dissociative adsorption of 1,3-Butanediol into CO, which is the main source of self-poisoning in electrocatalysis of small organic molecules. At lower potentials, the principal oxidation pathway of 1,3-Butanediol on Pt/Sbad electrode is towards the production of C=O. However, at higher potentials, the products of CO2 increased. The presence of S(ad) inhibited the oxidation of 1,3-BD at low potentials(< 0.8 V), and yield mainly acid species as products at higher potentials(> 0.8 V).
在本论文中，我们研究了用锑和硫吸附原子修饰的铂电极对1,3 - 丁二醇氧化的表面结构效应。结果表明，锑和硫的修饰均抑制了1,3 - 丁二醇解离吸附为一氧化碳，而一氧化碳是小分子有机物质电催化中自中毒的主要来源。在较低电位下，1,3 - 丁二醇在Pt/Sb吸附原子修饰电极上的主要氧化途径是生成C=O。然而，在较高电位下，二氧化碳的产物增加。硫吸附原子的存在在低电位（< 0.8 V）下抑制了1,3 - 丁二醇的氧化，而在高电位（> 0.8 V）下主要生成酸性物质作为产物。
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