ChemInform Abstract: TRANSFER OF MASS OF HEAT TO AN ELECTRODE IN THE REGION OF HYDROGEN EVOLUTION PART 2, EXPERIMENTAL VERIFICATION OF MASS AND HEAT TRANSFER EQUATIONS

Roušar, I.; Kačin, J.; Lippert, E.; Šmirous, F.; Cezner, V.

doi:10.1002/chin.197527032

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What Are the Impacts Of Gas Bubbles On A Gas Evolution React...1

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2019

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“…Another mechanism is that evolved bubbles can enhance heat or mass transport by convection, as the growing and detaching gas bubbles mix electrolyte near the electrode with that in the bulk. Because the improved heat transfer by evolved bubbles usually has an insignificant influence on the performance of a gas evolution system, rather little has been published on the heat transfer at gas-evolving electrodes. − Therefore, we will focus our discussion on mass transfer in this section. If the reaction rate is controlled by mass transfer, then bubbling accelerates the transport of reaction species to the electrode.…”

Section: What Are the Impacts Of Gas Bubbles On A Gas Evolution React...mentioning

confidence: 99%

Gas Bubbles in Electrochemical Gas Evolution Reactions

2019

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Electrochemical gas evolution reactions are of vital importance in numerous electrochemical processes including water splitting, chloralkaline process, and fuel cells. During gas evolution reactions, gas bubbles are vigorously and constantly forming and influencing these processes. In the past few decades, extensive studies have been performed to understand the evolution of gas bubbles, elucidate the mechanisms of how gas bubbles impact gas evolution reactions, and exploit new bubble-based strategies to improve the efficiency of gas evolution reactions. In this feature article, we summarize the classical theories as well as recent advancements in this field and provide an outlook on future research topics.

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Section: What Are the Impacts Of Gas Bubbles On A Gas Evolution React...mentioning

confidence: 99%