Solar-Electrocatalytic System for Hydrogen Generation


Novel solar-powered water-splitting platform to produce green hydrogen, combining photovoltaics with a highly efficient and stable dual anode–cathode made of a new 3D porous micro-nano-structured material.

  • Solar-Electrocatalytic System for Hydrogen Generation 0
  • Solar-Electrocatalytic System for Hydrogen Generation 1
  • Solar-Electrocatalytic System for Hydrogen Generation 2
Research completion
Commercialisation opportunities
Technology licensing agreement
Problem addressed

Utilization of carbon-rich fossil fuels (e.g., coal, oil, and natural gas) in our society has led to a significant increase in CO2 emissions, resulting in the climate changes due to the ‘‘greenhouse effect’’. Lately, there is a new concept, known as hydrogen economy, which utilizes hydrogen, generated by renewable energies, as high-density energy carriers instead of electricity.

  • Instead of the centralized generation of hydrogen at power plants, hydrogen fuels can be produced on-demand on the spot for the delocalized energy generation by different schemes without using any energy storage technologies, power grid and transportation systems.
  • The hydrogen fuel can be generated on-demand in the local regions when it is needed, while there is no need to have a centralized generation as well as a large-scale storage and transportation of hydrogen fuels.
  • Solar-driven evaporation of seawater to freshwater and solar-driven electrocatalytic hydrogen production from the pre-evaporated seawater, which can enable the large-scale deployment for eco-friendly and low-cost solar-driven hydrogen fuel production from local seawater as an alternative clean energy carrier.
Key impact
  • On-demand generation of large-scale and low-cost hydrogen fuels
  • Multi-functionality and high-performance of micro-nanostructure electrocatalysts
  • Solar-driven (e.g., photovoltaic and photothermal) water splitting
  • 48th International Exhibition of Inventions Geneva (IEIG) - Gold Medal
  • Water splitting
  • Hydrogen fuel generation


  • Patent Application No. 18/183,288 (USA) IDF 1307
City University of Hong Kong (CityU)

As one of the fastest growing universities in the world over the past decade, City University of Hong Kong (CityU) is recognised as a hub for innovation in research and professional education. CityU identifies solutions to critical global challenges by extending the frontiers of knowledge both within and beyond existing research paradigms.

The University’s highly qualified academics are drawn from all over the world, not only bringing a wealth of research and professional experience to the teaching programmes, but also contributing to the knowledge and technology advancement.