Temperature Dependence of Hydrogen Bond in the Redox Process of Polyaniline

Temperature Dependence of Hydrogen Bond in the Redox Process of Polyaniline
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聚苯胺氧化还原过程中氢键的温度依赖性

DOI:
10.1149/2.1591707jes
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发表时间:
2017
影响因子:
3.9
通讯作者:
Tan Xingnan
Tan Xingnan
中科院分区:
工程技术4区
文献类型:
--
作者:
Yan Ruiwen;Jin Baokang;Li Dan;Qian Cheng;Tan Xingnan

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首次采用原位快速扫描时间分辨红外光谱电化学(RS-TR-FTIRS)方法研究了聚苯胺氧化还原过程中的氢键结构。有两种类型的氢键。第一个是在水分子的氧原子和胺阳离子自由基的一个氢原子之间根据OH伸缩区域(3200-2100 cm-1)形成的。另一种是在水分子的氧原子和不同胺阳离子自由基的两个氢原子之间根据OH伸缩区域(2700-1700 cm− 1)形成的。结果表明,在聚苯胺的氧化还原过程中,随着胺阳离子自由基数量的增加,氢键的强度增加。有序氢键强度随温度的降低而增加。这一结果对于了解聚苯胺的化学和电子结构以及充分利用聚苯胺的化学和电子性质具有重要意义。
The in situ rapid-scan time-resolved IR spectroelectrochemistry (RS-TR-FTIRS) method was utilized to study the structures of hydrogen bond in the redox process of polyaniline for the first time. There are two types of hydrogen bond. The first was formed between the oxygen atom of water molecule and one hydrogen atom of amine cation radical according to the OH stretching region (3200–2100 cm− 1). Another was formed between the oxygen atom of water molecule and two hydrogen atoms of different amine cation radical according to the OH stretching region (2700–1700 cm− 1). It was found that the hydrogen bond strengthen with the increase of the quantity of amine cation radical in the redox process of polyaniline. The ordered hydrogen bond intensity increases as temperature decreases. The results may be important for understanding of chemical and electric structure and full use the chemical and electronic properties of PANI.
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影响因子: 3.2
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