- Graphene: Known for its excellent conductivity and mechanical strength, graphene is often used as a support material to stabilize other catalysts. - Transition Metal Dichalcogenides (TMDs): Materials like MoS2 and WS2 are used in hydrogen evolution reactions (HER) due to their favorable electronic properties. - Hexagonal Boron Nitride (h-BN): This material is used for its thermal stability and chemical inertness, making it suitable for high-temperature catalytic processes. - MXenes: These materials have tunable surface chemistries and are used in various electrochemical applications.