Because of its versatile chemical and physical characteristics, bimetallic catalysts have received a lot of interest for a variety of uses in energy generation and environmental clean up. These characteristics are primarily controlled by a variety of factors, including the composition of the bimetallic complexes, the technique of synthesis, and the morph structure. As a consequence of recent developments in the field of materials chemistry, several attempts have been undertaken in this respect to build "designer" bimetallic catalysts with particular nanostructures and surface features. The development of bimetallic catalysts based on nickel for use in energy and environmental applications is highlighted in the current review in detail. An in-depth description of the use of these bimetallic systems in the catalytic reactions related to energy production and environmental remediation is given, starting from a materials science perspective in order to obtain controlled morphologies and surface properties, with a focus on the fundamental understanding of these systems to make a correlation with their catalytic behaviours.