Cover -- Half Title -- Series Page -- Title Page -- Copyright Page -- Table of Contents -- Preface -- Notes on the Editors -- Contributors -- List of Abbreviations -- Chapter 1: Transition toward a Sustainable Hydrogen Economy: Status and Progress -- 1.1 Introduction -- 1.2 Addressing Sustainable Development Goals with a Hydrogen Economy -- 1.3 Present and Future Applications of Hydrogen -- 1.4 Challenges and Prospects of a Hydrogen Economy -- 1.5 Conclusion -- References -- Chapter 2: Exploring the Future of Nanomaterials: Insights into Synthesis, Characterization, and Potential Applications -- 2.1 Introduction -- 2.2 Types of Nanomaterials -- 2.2.1 Carbon-based Nanomaterials -- 2.2.1.1 Carbon Nanofibers (CNFs) -- 2.2.1.2 Carbon Nanotubes (CNTs) -- 2.2.1.3 Activated Carbon -- 2.2.1.4 Graphene -- 2.2.1.5 Fullerenes -- 2.2.2 Metal-organic Frameworks (MOFs) -- 2.2.3 Metal Nanomaterials (MNPs) -- 2.2.3.1 Metal-oxide Nanomaterials -- 2.2.4 Semiconductor Nanomaterials -- 2.2.5 Polymeric Nanomaterials -- 2.2.5.1 Dendrimers -- 2.2.5.2 Nanocellulose -- 2.2.6 Ceramic Nanomaterials -- 2.2.7 Nanocomposites -- 2.3 Nanomaterials Synthesis Methods -- 2.3.1 Physical Methods -- 2.3.1.1 Gas-phase Deposition -- 2.3.1.2 Electron Beam Lithography -- 2.3.1.3 Powder Ball Milling -- 2.3.1.4 Pulsed Laser Ablation -- 2.3.2 Chemical Methods -- 2.3.2.1 Coprecipitation -- 2.3.2.2 Microemulsion -- 2.3.2.3 Chemical Reduction -- 2.3.2.4 Hydrothermal Synthesis -- 2.3.3 Biological Methods -- 2.3.3.1 Fungi -- 2.3.3.2 Yeasts and Plants -- 2.4 Characterization of Nanomaterials -- 2.4.1 Raman Scattering (RS) Technique -- 2.4.2 X-ray Diffraction Technique -- 2.4.3 Scanning Electron Microscopy Technique -- 2.4.4 UV-visible Spectroscopy -- 2.4.5 Particle Size Analyzer -- 2.4.6 Fourier Transform Infrared Spectroscopy (FTIR) -- 2.5 Futuristic Applications of Nanomaterials.