Solid-state electrochemical hydrogen sensors: A review

A collector-generator cell for in-situ detection of electrochemically produced H2

“…An electrochemical hydrogen gas sensor operates by detecting the electrochemical reactions that occur when H 2 interacts with its electrodes [ 15 , 16 ]. It can measure real-time changes of H 2 concentration in the reaction system.…”

Enhancing Plasmonic Hydrogen Sensing Through Heterogeneous Multilayer Configurations with Quantitative Mechanism Analysis

“…Hydrogen (H 2 ), the lightest gas, is essential in chemical processes and as a sustainable energy source. − Its flammability and metal embrittlement risks necessitate advanced H 2 sensors with high sensitivity and safety . Various detection methods, including catalytic, electrochemical, , resistance, , and optical sensors, , have been developed. Among these, resistive sensors, primarily using metal oxides, stand out due to their extensive research and commercial availability.…”

Recent Developments in Sensor Technologies for Enabling the Hydrogen Economy

“…Many review articles are available on hydrogen sensors focused on general applications. 31,[34][35][36][37] However, there is not a systematic study on sensor requirements for the hydrogen economy with new applications such as fuel cells and electrolyzers combined with carrier molecules such as methane and ammonia. Hence, in this article, we will review the latest developments in sensors for these three gases with a focus on critical applications in the hydrogen economy.…”