Energy Application of Graphene Based Membrane: Hydrogen Separation
Muhammad Sohail Ahmad, Yusuke Inomata, Tetsuya Kida
Abstract
Abstract Hydrogen gas (H 2 ) is a viable energy carrier that has the potential to replace the traditional fossil fuels and contribute to achieving zero net emissions, making it an attractive option for a hydrogen‐based society. However, current H 2 purification technologies are often limited by high energy consumption, and as a result, there is a growing demand for alternative techniques that offer higher H 2 purity and energy efficiency. Membrane separation has emerged as a promising approach for obtaining high‐purity H 2 gas with low energy consumption. Nevertheless, despite years of development, commercial polymeric membranes have limited performance, prompting researchers to explore alternative materials. In this context, carbon‐based membranes, specifically graphene‐based nanomaterials, have gained significant attention as potential membrane materials due to their unique properties. In this review, we provide a comprehensive overview of carbon‐based membranes for H 2 gas separation, fabrication of the membrane, and its characterization, including their advantages and limitations. We also explore the current technological challenges and suggest insights into future research directions, highlighting potential ways to improve graphene‐based membranes performance for H 2 separations.