What is Electrode/Electrolyte Interface

High efficacy and industrial applicability on electrocatalytic hydrogen production is achieved by proper furnishing of components in the reaction cell. The idea on the basic mechanism of hydrogen evolution reaction (HER), efficient modification of available systems, and recent trends in the development strategies of suitable materials are very important to be explored to design novel systems for large-scale production. This review chapter discusses the scientific details on electrocatalytic HER and plausible materials used for catalyzing the reaction. And it outlines the trends in design and development of transition metal-based catalytic coating systems with a special focus on Ni-P alloy coating and scientific aspects of the methods and the materials used for the HER. On the whole, the discussion on HER and its catalytic systems provides an insight of their potential to be explored for enhanced energy production in hydrogen fuel cell technology for stationary and industrial applications.