Xiaogang Guo

Jul 19, 2023 | frontiersin.org | Xiaogang Guo |Chao Wang |Ming Zhou

1 IntroductionHydrogen is an alternative energy source with high efficiency and is pollution-free compared with non-renewable energy sources like petroleum, coal, natural gas, and geothermal energy (Lewis and Nocera, 2006; Yang X. et al., 2022). Alkaline water electrolysis is an important technology for the production of green hydrogen (Lagadec and Grimaud, 2020; Yang et al., 2022b).