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电极表面析气行为研究进展
首发时间：2024-05-28
摘要：在当今"双碳目标"及能源转型的背景下，氢能因为具有能量密度高、来源广泛、绿色无污染等优点从众多能源中脱颖而出。电解水制氢技术被认为是一种清洁且温和的方式用于产生氢气，因此具有极其广阔的前景。尽管已经有众多研究者注意到了电解水析氢过程电极界面的电催化反应，但在实际的析氢过程中，更多人却忽视了气相产物从电极界面向电解液或气体的传质过程。而本文将目光聚焦至气泡传质的过程，从电极表面气泡的基础理论出发，对气泡的成核、生长、脱离过程的相关研究，电极表面气泡行为的调控方式以及当前研究面临的主要挑战进行了综述，对提升电解水析氢效率，降低能耗具有重要意义。
关键词： 物理化学
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research progress of gas evolution behavior on electrode surface
abstract：in the context of today \'s \' dual-carbon goal \' and energy transformation, hydrogen energy stands out from many energy sources because of its high energy density, wide sources, and green pollution-free. hydrogen production from water electrolysis is considered to be a clean and mild way to produce hydrogen, so it has an extremely broad prospect. although many researchers have focused their attention on the electrocatalytic reaction at the electrode interface during the hydrogen evolution process of electrolytic water, in the actual hydrogen evolution process, more people ignore the mass transfer process of gas phase products from the electrode interface to the electrolyte or gas. in this paper, we focus on the process of bubble mass transfer. based on the basic theory of bubbles on the electrode surface, the related research on the nucleation, growth and detachment process of bubbles, the regulation of bubble behavior on the electrode surface and the main challenges faced by the current research are reviewed. it is of great significance to improve the efficiency of hydrogen evolution and reduce energy consumption.
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