Reach Us +441414719275
Design Of Active And Durable Catalysts With Non-precious Materials For Oxygen Reduction And Evolution Reactions: First Principles Prediction And Experimental Validation | 87647
ISSN: 2150-3494

Chemical Sciences Journal
Open Access

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations
700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)
All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.

Design of active and durable catalysts with non-precious materials for oxygen reduction and evolution reactions: First principles prediction and experimental validation

European Chemistry Congress

Byungchan Han

Yonsei University, Korea

ScientificTracks Abstracts: Chem Sci J

DOI: 10.4172/2150-3494.C1.002

Using first-principles density functional theory (DFT) calculations and experimental materialization, we design highly active and durable catalysts toward oxygen reduction reaction (ORR) with nonprecious [email protected] materials. DFT calculations indicate that encapsulated Cu metal by N-doped carbon shells is a promising electrocatalyst for ORR. To validate the prediction we synthesize three different types of catalysts with various applied processes: (i) hydrothermally treated “[email protected](hydro)”, (ii) “[email protected](heat)” heat-treated at T = 1000 °C for 2 h, and (iii) “[email protected](CO2)” oxidized by CO2 for 15 min at T = 1000 °C. It is shown that applying the CO2 treatment can be a key process controlling electronic structures and shell thickness of the materials leading the high ORR catalytic performance. To alleviate the substantial overpotential problem in water splitting process storing the energy in fuels of O2 and H2 we develop hexagonal perovskite oxide with a transition metal of mixed oxidation states. Both computational prediction and experimental measurements consistently show that its performance is better than IrO2.

Byungchan Han has completed his PhD in 2007 from MIT and Postdoctoral studies from Stanford University at Mechanical Engineering. He is an Associate Professor at Department of Chemical and Biomoleuclar Engineering in Yonsei University. His research interests are multi-scale computational design of emerging materials for renewable energy devices, and Materials Genome Project, and Machine Learning. He was chosen amongst 10 most leading young scientists in Korea and has published more than 40 SCI papers in reputed journals and has been serving as an Editorial Board Member of repute journals.
Email:[email protected]