Review-Physicochemical hydrodynamics of gas bubbles in two phase electrochemical systems.
Review-Physicochemical hydrodynamics of gas bubbles in two phase electrochemical systems.
复制标题
DOI：
10.1149/2.1161713jes
复制
发表时间：
2017
影响因子：
3.9
通讯作者：
Alshawabkeh A
中科院分区：
文献类型：
--
作者：
Taqieddin A;Nazari R;Rajic L;Alshawabkeh A
电化学系统对不断演化的气泡管理不善。提高对气泡行为的理解有助于减少过电位，节约能源，提高化学反应过程中的传质。本文对电化学电池中气泡的流体动力学、行为和管理进行了研究和综述。虽然气泡在电极表面上的生长速率是很清楚的，但由于气泡在电极表面附近运动的复杂性，没有可靠的预测气泡从电极表面破裂的直径。粒子图像测速（PIV）和激光多普勒测速（LDA）是测量气泡动力学最常用的实验技术。虽然PIV比LDA快，但这两种技术都被认为是昂贵且耗时的。这鼓励采用计算流体动力学（CFD）方法作为研究气泡行为的替代方法。然而，为了更好地理解和准确性，需要进一步发展CFD方法，包括气泡的聚并和破裂。采用混合方法可以克服CFD方法的缺点。电化学系统中气泡的行为仍然是一个复杂的具有挑战性的课题，这需要更好地理解气泡流体动力学及其与电极表面和散装液体以及气泡本身之间的相互作用。
Electrochemical systems suffer from poor management of evolving gas bubbles. Improved understanding of bubbles behavior helps to reduce overpotential, save energy and enhance the mass transfer during chemical reactions. This work investigates and reviews the gas bubbles hydrodynamics, behavior, and management in electrochemical cells. Although the rate of bubble growth over the electrode surface is well understood, there is no reliable prediction of bubbles break-off diameter from the electrode surface because of the complexity of bubbles motion near the electrode surface. Particle Image Velocimetry (PIV) and Laser Doppler Anemometry (LDA) are the most common experimental techniques to measure bubble dynamics. Although the PIV is faster than LDA, both techniques are considered expensive and time-consuming. This encourages adapting Computational Fluid Dynamics (CFD) methods as an alternative to study bubbles behavior. However, further development of CFD methods is required to include coalescence and break-up of bubbles for better understanding and accuracy. The disadvantages of CFD methods can be overcome by using hybrid methods. The behavior of bubbles in electrochemical systems is still a complex challenging topic which requires a better understanding of the gas bubbles hydrodynamics and their interactions with the electrode surface and bulk liquid, as well as between the bubbles itself.
登录
查看更多内容
影响因子：
6.6
作者：
Brussieux, C.;Viers, Ph.;Rakib, M.
通讯作者：
Rakib, M.
DOI：
10.1590/s1678-58782010000100003
发表时间：
2010-03-01
影响因子：
2.2
作者：
Barbosa, P. R.;Crivelaro, K. C. O.;Seleghim Jr., Paulo
通讯作者：
Seleghim Jr., Paulo
DOI：
10.1007/s11663-013-9885-x
发表时间：
2013-10-01
影响因子：
3
作者：
Alam, Morshed;Yang, William;Morsi, Yosry S.
通讯作者：
Morsi, Yosry S.
DOI：
10.1016/j.cep.2009.08.006
发表时间：
2009-09-01
影响因子：
4.3
作者：
Albuquerque, I. L. T.;Cavalcanti, E. B.;Vilar, E. O.
通讯作者：
Vilar, E. O.
影响因子：
4.5
作者：
Cheng, H;Scott, K
通讯作者：
Scott, K