Foreword

The generation and storage of sufficient energy have become extremely difficult in the 21 century due to the depletion of fossil fuel resources and environmental concerns. Unquestionably, cutting-edge nanotechnology may be the only way to meet humankind's energy needs in the future by creating a safe, eco-friendly, and sustainable energy source. Functional 2D nanomaterials, such as graphene, MXene, MOFs, COFs, and metal nitrides, have the potential to produce and conserve energy sustainably, as well as to support appropriate energy applications.

The authors have provided a thorough overview of the functional 2D nanostructured materials, including graphene, MXene, MOFs, COFs, and metal nitrides, as well as their respective nanocomposites. Such materials have several great uses for the effective storage of energy, mainly supercapacitor electrochemical energy. These materials have a wide range of uses, including flexible nanocomposites for optical memory, future display technologies, biosensors, and nanodevices. I think this book will be very beneficial to the scientific and engineering community.

It is noteworthy to mention that a number of experts from reputed institutes, who have vast background and expertise in the relevant domain, have also contributed to the book chapters. The book appears to be well edited, consistent in flow, and oriented towards expanding the reader's knowledge.

This book will have significant impact on the topic of using next­ generation nanomaterials in electronics and supercapacitors for energy storage. Many research teams and industry professionals, including those involved in physics, chemistry, materials science, polymer science, energy conversion, chemical engineering and energy storage materials, will find this book to be very useful.