Distinction between surface hydroxyl and ether groups on boron-doped diamond electrodes using a chemical approach
Distinction between surface hydroxyl and ether groups on boron-doped diamond electrodes using a chemical approach
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DOI：
10.1016/j.elecom.2009.12.029
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发表时间：
2010-03
影响因子：
5.4
通讯作者：
Mei Wang;N. Simon;G. Charrier;M. Bouttemy;A. Etcheberry;Musen Li;R. Boukherroub;S. Szunerits
中科院分区：
文献类型：
--
作者：
Mei Wang;N. Simon;G. Charrier;M. Bouttemy;A. Etcheberry;Musen Li;R. Boukherroub;S. Szunerits
虽然已经清楚地确定了生长态掺硼金刚石（BDD）界面的氧化导致引入不同的表面氧功能，例如醚、羰基和羟基，但是没有报道可以清楚地区分不同表面功能的方法。对于进一步的表面功能化，重要的是量化金刚石表面上每个基团的存在。在本文中，表面羟基的存在和数量被确定使用的COH基团与三氟乙酸的酯化。酸中CF3基团的存在允许使用X射线光电子能谱（XPS）鉴定和估计表面羟基的量。
While it is clearly established that oxidation of as-grown boron-doped diamond (BDD) interfaces results in the introduction of different surface oxygen functions such as ether, carbonyl and hydroxyl groups, there is no reported approach which can clearly distinguish between the different surface functions. For further surface functionalization, it is important to quantify the presence of each group on the diamond surface. In this paper, the presence and amount of surface hydroxyl groups is identified using esterification of the COH groups with trifluoroacetic acid. The presence of CF3group in the acid allowed the identification and estimation of the amount of surface hydroxyl groups using X-ray photoelectron spectroscopy (XPS).