Dr. Ren is a scientist in the field of renewable energy. He has conducted pioneering research on functional photocatalytic, electrocatalytic, and thermocatalytic materials for renewable solar, mechanical, and thermal energy harvesting and utilization, as well as carbon capture, utilization, and storage. Dr. Ren has further integrated these processes into the development of next-generation high-performance battery and supercapacitor-based energy storage devices, significantly enhancing energy storage and conversion efficiency. Dr. Ren has published over 100 peer-reviewed journal papers, with over 40 as the first or corresponding author. Dr. Ren's research extends beyond theoretical studies, actively translating laboratory findings into practical applications. His high-efficiency electro/photocatalysts have demonstrated remarkable performance in hydrogen production through water splitting and environmental purification. His electrocatalytic materials show superior performance in fuel cells and metal-air batteries. Moreover, his catalytic materials have been successfully used for mechanical energy harvesting and conversion, offering innovative solutions for next-generation wearable devices and self-powered systems. Dr. Ren's outstanding achievements and significant contributions to the scientific community make him a leading figure in renewable energy research. His work not only advances the frontiers of science but also provides new insights and solutions for global sustainable energy development.