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Researchers at Technical University Release New Data on Chalcogens

February 25, 2014



By a News Reporter-Staff News Editor at Life Science Weekly -- Fresh data on Chalcogens are presented in a new report. According to news originating from Berlin, Germany, by NewsRx correspondents, research stated, "Development of efficient electrocatalysts for the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) remain key issues for the commercialization of fuel cells and metal-air batteries. In this study, A CoFe2O4/graphene nanohybrid is facilely synthesized via a two-step process and applied as an electrocatalyst for the ORR and the OER."

Our news journalists obtained a quote from the research from Technical University, "The as-prepared CoFe2O4/graphene nanohybrid demonstrates excellent catalytic activity for the ORR. At the same mass loading, the Tafel slope of CoFe2O4/graphene electrocatalyst for the ORR is comparable to that of the commercial Pt/C (20 wt% Pt on Vulcan XC-72, Johnson Matthey). The ORR on CoFe2O4/graphene mainly favours a direct 4e(-) reaction pathway. The CoFe2O4/graphene nanohybrid also affords high catalytic activity for the OER. The chronoamperometric tests show that CoFe2O4/graphene catalyst exhibits excellent stability for both the ORR and the OER, outperforming the commercial Pt/C."

According to the news editors, the research concluded: "The high electrocatalytic activity and durability of CoFe2O4/graphene nanohybrid are attributed to the strong coupling between CoFe2O4 nanoparticles and graphene."

For more information on this research see: A CoFe2O4/graphene nanohybrid as an efficient bi-functional electrocatalyst for oxygen reduction and oxygen evolution. Journal of Power Sources, 2014;250():196-203. Journal of Power Sources can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Journal of Power Sources - www.elsevier.com/wps/product/cws_home/504093)

The news correspondents report that additional information may be obtained from W.Y. Bian, Technical University of Berlin, Dept. of Chem, Div Chem Engn, Electrochem Energy Catalysis & Mat Sci Lab, D-10623 Berlin, Germany. Additional authors for this research include Z.R. Yang, P. Strasser and R.Z. Yang (see also Chalcogens).

Keywords for this news article include: Berlin, Europe, Germany, Chalcogens

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Source: Life Science Weekly


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