Lecturer: Yutao Xing professor

Lecture Time:March 11th, 9:00 AM

Lecture Place: Science Building No.7, Room C118

Lecture Content:

This presentation will mainly report on the establishment and development plans of the High-Resolution Electron Microscopy Laboratory at the Federal University of Fluminense in Brazil. On this basis, it will introduce research on manganese oxides with controllable microstructures as supercapacitor electrode materials, and the use of alternating magnetic fields to enhance the performance of composite catalysts made from nickel nanoparticles and ferromagnetic nanomaterials for urea electrooxidation. This introduction aims to showcase the applications of high-resolution electron microscopy in materials science, chemical engineering, and other disciplines. The treatment of urea has always been a crucial aspect of wastewater treatment. Nickel metal as a catalyst for the electrooxidation of urea presents significant application potential. This talk will discuss preliminary explorations into using alternating magnetic fields to enhance the catalytic activity of nickel-iron oxide composites for urea electrooxidation, examining the possibility of magnetic field enhancement of catalytic performance. Nanostructured manganese oxide materials used for supercapacitors have been extensively studied. However, achieving controllable microstructural fine-tuning of manganese oxide nanomaterials has always been a challenge. By using pulsed lasers in oxygen atmospheres under different pressures, we have achieved precise microstructural tuning of manganese oxides. We will discuss the impact of microstructure on volumetric and gravimetric energy density of supercapacitors, achieving both high volumetric and gravimetric energy densities simultaneously.

Introduction of the Speaker:

Professor Yutao Xing, a doctoral supervisor at the Institute of Physics, Federal University of Fluminense (UFF), Brazil, is also the Director of the Graduate Program in Chemistry and Engineering, and the Director of the UFF High-Resolution Electron Microscopy Laboratory. He holds a 1D-level research grant from CNPq (National Council for Scientific and Technological Development) and has received the FAPERJ (Rio de Janeiro Research Foundation) Scientist Grant. During his tenure at UFF, he established the Nanomaterials Preparation Laboratory and the High-Resolution Electron Microscopy Laboratory from scratch. His research focuses primarily on the application of sustainable materials, catalysts, green energy, etc. He has undertaken significant research projects funded by FAPERJ, FINEP, and CNPq. Currently, he is a recipient of the CNPq research grant (1D level) and the Rio de Janeiro State Scientist Grant. He has also taken on research tasks from companies such as PETROBRAS and TechnipFMC, with accumulated research funding exceeding 7 million US dollars. At present, he is dedicated to co-founding an advanced material analysis and testing center based on high-resolution electron microscopy with China National Offshore Oil Corporation (CNOOC), China National Petroleum Corporation (CNPC), and PETROBRAS. He has published over a hundred papers in international journals, frequently participated in organizing sub-sessions of international conferences, and contributed to the UFF Summer Camp on High-Resolution Electron Microscopy and Nanofabrication.