Self-oscillating gel accelerated while sensing the shape ofan aqueous surface
Self-oscillating gel accelerated while sensing the shape ofan aqueous surface
复制标题
自振荡凝胶在感知水表面形状时加速
DOI：
10.1021/acs.langmuir.6b00337
复制
发表时间：
2016
期刊：
影响因子：
3.9
通讯作者：
S. Nakata
中科院分区：
文献类型：
--
作者：
M. Yoshii;H. Yamamoto;Y. Sumino;S. Nakata
研究了由Belousov-Zhabotinsky（BZ）反应诱导的自振荡方形凝胶在水表面上的往复运动。化学波从凝胶中Ru催化剂开始氧化的一侧传播。当化学波传播时，凝胶在与化学波传播相反（模式I）或相同（模式II）的方向上移动。然后，随着凝胶中的Ru催化剂缓慢还原，凝胶返回。我们研究了运动模式（模式I或II）和BZ水溶液表面的形状之间的关系。讨论了模式选择与BZ反应改变的凝胶周围接触角的关系，即，表面张力的横向不平衡和毛细管相互作用。
The reciprocating motion of a self-oscillating square gel induced by the Belousov–Zhabotinsky (BZ) reaction was investigated on an aqueous surface. The chemical wave propagated from the side at which the oxidation of the Ru catalyst in the gel started. As the chemical wave propagated, the gel moved in either the opposite (mode I) or the same (mode II) direction as the chemical wave propagation. The gel then went back as the Ru catalyst in the gel was slowly reduced. We examined the relationship between the modes of motion (mode I or II) and the shape of the aqueous BZ solution surface. The mode selection was discussed in relation to the contact angle around the gel which was changed by the BZ reaction, i.e., the lateral imbalance of surface tension and the capillary interaction.