Two efficient and inexpensive novel electrocatalysts for hydrogen production offering sustainable green solutions for the energy crisis have been developed by City University of Hong Kong (CityU).
Hydrogen is a clean and sustainable alternative to fossil fuels while the production of low-cost, high-performance hydrogen evolution catalysts is a core problem in the energy field.
The electrocatalyst is based on two-dimensional mineral gel nanosheets. A research team co-led by CityU materials scientists has recently developed an innovative, ultra-stable and highly efficient hydrogen evolution reaction (HER) electrocatalyst.
Electrochemical HER is a widely used hydrogen-generation method. Commercial HER electrocatalysts are made from expensive precious metals. A promising type of HER electrocatalyst intensively studied by scientists is single-atom catalysts for their potential in catalytic HER applications because of their high activity, maximised atomic efficiency, and minimised catalyst usage. However, the fabrication of single-atom catalysts is generally complicated, and requires a lot of energy and time.
The new electrocatalyst is based on two-dimensional mineral gel nanosheets and does not contain any precious metals. It can be produced on a large scale and help achieve a lower hydrogen price in the future. [Read More from CityU Research News 'Novel electrocatalysts for hydrogen production offer hope for solving the energy crisis']
Two-dimensional mineral hydrogel-derived single atoms-anchored heterostructures for ultrastable hydrogen evolution