Denny Gunawan is a Postdoctoral Research Associate in the Particles and Catalysis Research Group within the School of Chemical Engineering at the University of New South Wales. He is also affiliated with the Australian Research Council Training Centre for the Global Hydrogen Economy. His primary research area focuses on improving photocatalytic solar hydrogen production through material design and reactor engineering. Furthermore, he has actively participated in several decarbonisation projects led by the government and industry stakeholders, conducting techno-economic studies for powerfuel technology and its applications.