Self-flooding behaviors on the fuel cell catalyst surface: an in situ mechanism investigation

Abstract

Water management in fuel cell (FC) has been a long-standing bottleneck for device performance and durability. To get flooding pictures at the catalyst layer, a model reaction system is established...

Bioinspired Gas Manipulation for Regulating Multiphase Interactions in Electrochemistry

“…Manipulating fluid behavior such as distribution, absorption, and transport at the interface exhibits great opportunity to multiphase chemical reactions, especially in electrochemical systems. [1][2][3] Gas-involving electrochemical reactions, which refer to electrochemical processes that involve the participation or generation of gas species, play a significant role in various applications, including energy conversion and storage, [4,5] electrochemical sensors, [6,7] and environmental remediation. [8,9] According to the role of the gas in the reactions, gas-involving reactions are categorized as gas evolution reactions, including hydrogen evolution reaction (HER), oxygen evolution reaction (OER), chlorine evolution reaction (ClER), hydrazine oxidation reaction (HzOR), and urea oxidation reaction (UOR), and gas consumption reactions such as oxygen reduction reaction (ORR), nitrogen reduction reaction (NRR), and electrochemical acetylene reduction (EAR).…”