This chapter offers a generalized view on the performance and durability of N-G/MOFs composites, emphasizing their applications as electrocatalysts, electrode materials, and functional components in diverse electrochemical processes. The integration of conductive N-doped graphene with porous and metal rich MOFs creates a hybrid structure that enables efficient charge transfer, abundant active sites, and accelerated reaction kinetics. Such characteristics have positioned N-G/MOFs composites as effective catalysts for various electrochemical reactions in fuel cells, as well as different other reactions in high performance electrodes in supercapacitors and rechargeable batteries. The chapter also discusses the role of structural morphology, surface chemistry, and interfacial bonding in determining the electrochemical behaviour of these materials. Beyond performance metrics, particular attention is devoted to degradation mechanisms and stability issues that limit the long-term operation of N-G/MOFs systems. The primary degradation pathways include oxidative attack on graphene frameworks, protonation or hydrolysis of MOFs coordination bonds, demetalation, and interfacial fatigue resulting from electrochemical cycling. Understanding these degradation phenomena is essential for the rational design of more durable materials. Through analysis of experimental findings and reported literature, this chapter highlights the progress achieved in enhancing electrochemical efficiency while addressing durability challenges. The insights presented herein provide a scientific basis for future optimization of N-G/MOFs composites in fuel cells, batteries, supercapacitors, and other sustainable energy technologies.

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Electrochemical Performance and Durability of N–G/MOFs

  • Eon Soo Lee,
  • Niladri Talukder

摘要

This chapter offers a generalized view on the performance and durability of N-G/MOFs composites, emphasizing their applications as electrocatalysts, electrode materials, and functional components in diverse electrochemical processes. The integration of conductive N-doped graphene with porous and metal rich MOFs creates a hybrid structure that enables efficient charge transfer, abundant active sites, and accelerated reaction kinetics. Such characteristics have positioned N-G/MOFs composites as effective catalysts for various electrochemical reactions in fuel cells, as well as different other reactions in high performance electrodes in supercapacitors and rechargeable batteries. The chapter also discusses the role of structural morphology, surface chemistry, and interfacial bonding in determining the electrochemical behaviour of these materials. Beyond performance metrics, particular attention is devoted to degradation mechanisms and stability issues that limit the long-term operation of N-G/MOFs systems. The primary degradation pathways include oxidative attack on graphene frameworks, protonation or hydrolysis of MOFs coordination bonds, demetalation, and interfacial fatigue resulting from electrochemical cycling. Understanding these degradation phenomena is essential for the rational design of more durable materials. Through analysis of experimental findings and reported literature, this chapter highlights the progress achieved in enhancing electrochemical efficiency while addressing durability challenges. The insights presented herein provide a scientific basis for future optimization of N-G/MOFs composites in fuel cells, batteries, supercapacitors, and other sustainable energy technologies.