报告简介：

Energy conversion and storage via direct electrochemical oxidation and reduction processes, such as the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER), can provide a clean, efficient, and economically viable means of meeting this sustainability challenge, by allowing stored renewable energy to be reliably delivered where and when it is needed. During the development of the highly demanded nonprecious metal catalysts to replace precious metals for these applications, carbon catalysts have many advantages over metal oxides, including excellent electrical conductivity, high surface area, and easy functionalization. However, most carbon-based catalysts suffer from poor activity and stability for the more challenging OER under highly oxidative conditions In this talk, Prof. Wu will report a new class of large-diameter tubular nanocarbon (>500 nm in diameter) catalyst capable of catalyzing both the ORR and the OER with activity comparable to Pt and exceeding Ir, respectively, for these two reactions. The cost effective, easily scalable, single step and environmentally benign synthesis procedure further favors this nanocarbon’s application as a practical bifunctional electrocatalyst for the ORR and OER, with potential to advance the development and commercialization of regenerative fuel cell systems and rechargeable metal-air batteries.

报告人：

Dr. Gang Wu is an Assistant Professor in the Department of Chemical and Biological Engineering at the University at Buffalo (UB), SUNY since August 2014. Prior to joining UB, he was a staff scientist at Los Alamos National Laboratory (LANL) for nearly 5 years. He completed his Ph.D. studies at the Harbin Institute of Technology (Harbin, China) in 2004, followed by extensive postdoctoral trainings at Tsinghua University (2004-2006), the University of South Carolina (2006-2008), and LANL (2008-2010). Dr. Wu's research focuses on development of nanostructured functional materials and catalysts for batteries, fuel cells, supercapacitors, water splitting, and electrochemical sensors. To date, he has authored and coauthored more than 140 scientific publications in prestigious journals including Science. He is also an Associate Editor for RSC Advances (Royal Society of Chemistry, UK) and one of Editorial Board Members of ChemistrySelect (Wiley-VCH, Germany) and Scientific Reports (Nature publishing group).
 
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