Research Progress of Self-Supported Ceramic Electrodes for Water Electrolysis

As global demand for sustainable energy grows, hydrogen has emerged as a clean and efficient energy carrier, attracting widespread attention. Water electrolysis, an environmentally friendly hydrogen production method, generates only hydrogen and oxygen without greenhouse gas emissions. In this process, catalysts play a pivotal role. Conventional powdered catalysts often suffer from low conductivity, inefficient hydrogen evolution, and poor recoverability. While loading catalysts onto substrates such as nickel foam or carbon materials can enhance conductivity, these supports typically exhibit low mechanical strength, poor resistance to strong acids or alkalis, and limited adaptability. In contrast, emerging ceramic membrane electrodes offer significant advantages, including high stability, durability, and resistance to physical damage. These properties make them promising candidates for water electrolysis applications. This short review summarizes recent advances in the preparation of ceramic membrane electrodes and their performance in water electrolysis.