Water resistance of cerium phosphate glasses as studied by in situ high temperature IR microspectroscopy
Water resistance of cerium phosphate glasses as studied by in situ high temperature IR microspectroscopy
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DOI：
10.1016/j.jnoncrysol.2013.06.016
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发表时间：
2013-10
影响因子：
3.5
通讯作者：
Hiroko Shinozaki;S. Nakashima;Shio Takahashi;A. Hanada;Y. Yamamoto
中科院分区：
文献类型：
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作者：
Hiroko Shinozaki;S. Nakashima;Shio Takahashi;A. Hanada;Y. Yamamoto
为了研究磷酸铈（CeP）玻璃的耐水性，利用高温显微红外光谱研究了CeP玻璃的红外光谱行为。在拉曼光谱和红外光谱中，仅在含Ce的磷酸盐玻璃中观察到一个小的尖锐的2165 cm− 1谱带，主要基于红外谱带的可逆加热行为的相似性，认为这是由于P单键O（1185 cm− 1）的对称伸缩振动和Q 2物种的P单键OH（980 cm− 1）键的不对称伸缩振动的组合。3085 cm− 1谱带可以对应于与Q2物种相关的P单键OH物种的OH伸缩振动。CeP玻璃经水处理后出现了3500 cm-1附近的宽带。该谱带可能是由于H2O分子H键合到Q2单元的P单键OH物种，并且在加热时大部分损失。CeP玻璃的耐水性能的起源因此被认为是由于强的Q2 P单键O链与P单键OH键。
In order to study water resistance of cerium phosphate (CeP) glasses, behavior of infrared (IR) bands of the CeP glass was investigated by using high temperature IR microspectroscopy. A small sharp 2165 cm− 1band is observed in both Raman and IR spectra only for the phosphate glass containing Ce and is considered to be due to combination of symmetric stretching vibration of Psingle bondO (1185 cm− 1) and asymmetric stretching vibration of Psingle bondOH (980 cm− 1) bonds of Q2species, based mainly on the similarity of reversible heating behavior of the IR bands. The 3085 cm− 1band can correspond to OH stretching vibrations of Psingle bondOH species associated with Q2species. The broad band around 3500 cm− 1appeared after the water treatment of the CeP glass. This band can be due to H2O molecules H bonded to Psingle bondOH species of the Q2units and was mostly lost upon heating. Origins of water resistant properties of the CeP glass were therefore considered to be due to strong Q2Psingle bondO chains with Psingle bondOH bonds.