Hydrogen is the ideal fuel for the future because it is clean, energy efficient, and abundant in nature. While various technologies can be used to generate hydrogen, only some of them can be considered environmentally friendly. Recently, hydrogen generated via catalytic water splitting has attracted tremendous attention and has been extensively studied because of its great potential for clean hydrogen production. Hydrogen is an ideal energy storage medium or carrier because of the following reasons; firstly, it is the most abundant element and exists in both water and biomass; secondly, it has a high energy yield (122 kJ/g) compared to other fuels such as gasoline (40 kJ/g) and thirdly, it is environmentally friendly as it does not produce pollutants, greenhouse gases, nor any harmful effect on the environment. Last, but not least, hydrogen can be stored in gaseous, liquid or metal hydride form and can be distributed over large distances through pipelines or via tankers. There are number of ways of generating hydrogen. The most common method of generating hydrogen is through a process called steam reforming. Another process involves fossil fuels and is called coal gasification. Both these process suffer from using very high temperatures, high pressures as well as the production of high amounts of CO2. Water splitting through electrolysis can therefore be an alternative greener process in producing hydrogen. Water splitting through electrolysis is however expensive due to the use of Pt as an electrocatalyst. In our group, we make use of highly catalytic 2D metal dichalcogenides and metal phosphides for hydrogen evolution reaction (HER). By using the colloidal synthetic method, we can engineer the resultant properties of the nanomaterials.