A short review of the kinetic parameters of carbon quantum dots for Electrocatalytic Hydrogen evolution reaction

Net zero-emission electrocatalytic clean hydrogen energy by hydrogen evolution reaction (HER) is the present-day ongoing manufacturing approach of Green Hydrogen (H 2 ). This article provides an overview of HER in acidic and alkaline environments as well as the creation of carbon quantum dots (CQD) and their composites with benefits in surface characteristics, as well as their theoretical and experimental research in HER. Additionally, it tends to layout the kinetics of CQD as an electrocatalyst to improve the H 2 production by water splitting, synergistic impact of hybrid CQD, and active sites for enhancing the adsorption of intermediate hydrogen in the process. The prominence of this review is to effectively utilize the CQD as a better electrocatalyst in forthcoming years by encouraging in providing a more significant number of hybrids that improve the efficiency, stability, and generation. Future perspectives, challenges, and outlook on CQD for water splitting electrocatalyst are also discussed. • Carbon quantum dots (CQDs) is a promising noble catalyst for green H 2 production. • Highly prevalent CQDs will easily combine with metals to speed up the HER. • CQDs main advantages include rapid electron transfer and a large number of active sites. • CQDs enhance HER kinetics with rich functional groups and defects in the surface. • Studying the behavior of CQDs with rare earth metals is necessary.