报 告 人：Elena Baranova教授
Elena Baranova现为加拿大渥太华大学化学与生物工程系教授，现任New Journal of Electrochemistry、International Journal on Theoretical and Applied Nanotechnology等6个国际学术期刊的编委，在电化学能源与催化领域是加拿大知名教授。Baranova教授的研究主要是从环境保护的角度设计新型能量存储与转换的电催化材料与系统，已在ACS Catalysis、Journal of Catalysis、Applied Catalysis B-Environmental、ACS Applied Materials & Interface等国际高水平学术期刊上发表了论文70余篇。
In this presentation we will present these approaches by considering two case studies in liquid and gas phases. The first is related to catalyst development for direct ethanol fuel cells (DEFCs) and glycerol electrooxidation to value added products. The electrochemical conversion of biodiesel by-product, glycerol into value-added chemicals has sparked the attraction in recent years to study and evaluate fundamentals of both glycerol reaction mechanism and its prospective application. In this work we seek to understand the relations between the structure and the composition of Ni-based catalyst as well as the mechanism and selectivity of the electrocatalytic oxidation. Spectro-electrochemistry an emerging field that combines spectroscopic techniques with electrochemistry to study complex chemical transformations. Within the past three decades polarization modulation infrared reflection absorption spectroscopy (PM-IRRAS) has been developed as the most sensitive infrared technique suited for in-situ and surface studies. Here we will highlight the usefulness of this technique for studying ethanol and glycerol electrooxidation in alkaline media. The second case study is related to the gas phase electrocatalysis for green-house gas emission mitigation. Here we will present the phenomenon of Electrochemical Promotion of Catalysis (EPOC) also called Non-faradaic Electrochemical Modification of Catalytic Activity (NEMCA). The recent EPOC studies carried out in our group using monometallic (Pt, RuO2, FeOx and bimetallic NiPd and RuFe nanoparticles will be presented for oxidation reactions: complete ethylene and methane oxidation, as well as CO2 hydrogenation reaction.