Exploring the power of light for methane conversion: Mechanism, advance, and prospective

Abstract

As the “holy grail” of catalysis, the conversion of CH₄ has attracted substantial interest. The quest for efficient conversion pathways for CH₄ is of paramount importance for climate change mitigation and the advancement of energy utilization. Solar-driven CH₄ conversion is deemed a promising avenue, as it concurrently diminishes greenhouse gas emissions and promotes the generation of sustainable energy resources. This paper reviews the latest advancements in solar-driven CH₄ conversion, encompassing an in-depth analysis of the underlying mechanisms for methane nonoxidative coupling, partial oxidation, steam reforming, and dry reforming. It also highlights state-of-the-art technologies in catalyst development for these reactions. This study aims to provide valuable insights into the progression of solar-driven CH₄ conversion technology, thereby promoting its widespread application in energy conversion and storage.