Book excerpt: 2D Nanomaterials for Energy Applications: Graphene and Beyond discusses the current state-of-the art of 2D nanomaterials used in energy-related applications. Sections cover nanogenerators, hydrogen storage and theoretical design. Each chapter focuses on a different energy application, thus allowing readers to gain a greater understanding of the most promising 2D materials in the field. The book's ultimate goal lies in describing how each energy technology is beneficial, hence it provides a valuable reference source for materials scientists and engineers. The physical and chemical properties of 2D materials can be effectively tuned through different strategies, such as controlling dimensions, the crystallographic structure and defects, or doping with heteroatoms. This flexibility facilitates the design of 2D materials for dedicated applications in the field of energy conversion and storage. - Offers a single source for the major practical applications of 2D materials in the field of energy conversion and storage - Explores how 2D materials are being used to create new, more efficient industrial energy products and devices - Compares a variety of 2D materials, showing how the properties of a range of these materials make them beneficial for specific energy applications