Chinwe P. Okonkwo, Ph.D., is a Lecturer in the Department of Pure and Industrial Chemistry within the Faculty of Physical Sciences at Nnamdi Azikiwe University, Awka, Nigeria. She collaborates with the Department of Chemical Engineering at Cape Peninsula University of Technology, South Africa. Her research interests include Green and Renewable Energy, Catalysis, Biofuels, and Analytical/Environmental Chemistry.
Modestus O. Okwu, Ph.D., is an Associate Professor in the Department of Mechanical Engineering at the Federal University of Petroleum Resources Effurun (FUPRE) in Delta State, Nigeria. He is currently a visiting research fellow at Brunel University London, United Kingdom. Prof. Okwu has several years of postdoctoral experience in the Department of Mechanical and Industrial Engineering at the University of Johannesburg, South Africa.