论文标题
从表面纳米风反应中加速H2纳米泡的形成
Accelerated Formation of H2 Nanobubbles from a Surface Nanodroplet Reaction
论文作者
论文摘要
液滴中化学反应的分室化具有低成本，减少试剂的消耗和增加的吞吐量。小滴中的反应也已显示出大大加速了许多化学反应的速率。在这项工作中证明了纳米三个反应的纳米泡的加速生长速率。来自纳米光的反应的气态产物促进了多个有机液体纳米圆形内氢纳米泡的成核。纳米泡被限制在液滴中，有选择地生长并在液滴周围塌陷，如显微镜以高空间和时间分辨率的显微镜观察。气泡的生长速率在小液滴中显着加速，并随液滴半径成反。加速度归因于液滴体积的限制，以及表面积对气体产生的界面化学反应的影响。这项研究的结果为在液滴增强纳米泡的产生和按需氢气的生产中的应用提供了进一步的了解。
The compartmentalization of chemical reactions within droplets has advantages in low costs, reduced consumption of reagents and increased throughput. Reactions in small droplets have also been shown to greatly accelerate the rate of many chemical reactions. The accelerated growth rate of nanobubbles from nanodroplet reactions is demonstrated in this work. The gaseous products from the reaction at the nanodroplet surface promoted nucleation of hydrogen nanobubbles within multiple organic liquid nanodroplets. The nanobubbles were confined within the droplets and selectively grew and collapsed at the droplet perimeter, as visualized by microscopy with high spatial and temporal resolutions. The growth rate of the bubbles was significantly accelerated within small droplets and scaled inversely with droplet radius. The acceleration was attributed to confinement from the droplet volume and effect from the surface area on the interfacial chemical reaction for gas production. The results of this study provide further understanding for applications in droplet enhanced production of nanobubbles and the on-demand liberation of hydrogen.
