Dr. Lai Chin WeiAssociate Professor, University of Malaya, Malaysia
Speech Title: PEC Water Splitting technology: a New Dawn for the Hydrogen Economy
Abstract: Today, hydrogen (H2) could be a significant fuel of the future replacing fossil fuel which causing a major treat to social and environmental problems, such as carbon emissions, energy security and local air pollution. However, our future will certainly not be based on a simple replacement of fossil fuels by hydrogen but making it available at cheaper cost for everyone to utilize it. This is possible if we could generate hydrogen on renewable basis using photocatalytic water splitting technology. The development of tungsten nanocatalysts on titania nanotube arrays that capable of producing hydrogen gases in a cleaner, more efficient and cost-effective way by using two natural resources (sunlight and water). Tungsten nanocatalysts on titania nanotube arrays is a stable, high chemical and thermal stability, active at room temperature as well as have extended their light absorption spectrum towards visible region, which responsive to both ultraviolet and visible illumination. The tungsten nanocatalysts on titania nanotube arrays could be served as an efficient photo-induced electrons acceptor to facile better charge carrier separation in splitting water. In conclusion, HTON is the cornerstones for sustainable hydrogen economy because it could generate hydrogen efficiently and inexpensively for humankind.
Biography: Lai’s main research interests are in the areas of chemically modified metal oxide photocatalysts, functionalized nanomaterials/ nanocomposite and carbon graphene materials, especially apply in environmental pollution management and solar energy technology. Lai’s works have been published in more than 210 refereed international top-tier journals with Scopus h-index of 32, 60 book chapters, and 100 international proceedings in materials science, physics, chemistry, and renewable energy researches. In all, Lai has reviewed more than 800 papers in the past few years, mainly for top international journals / conferences and now serving as associate editors, guest editors, topic editors and editorial board members for several prestigious international journals. Lai served as section editor for a book entitled “Encyclopedia of Energy Storage: Capacitors/ Supercapacitors 2022” (Elsevier).