Biomass waste-derived nitrogen and iron co-doped nanoporous carbons as electrocatalysts for the oxygen reduction reaction
| Autor: | Nartzislav Petrov, S. Pérez-Rodríguez, Tanya Tsoncheva, Cinthia Alegre, Daniela Paneva, David Sebastián, María Jesús Lázaro |
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| Přispěvatelé: | European Commission, Ministerio de Economía, Industria y Competitividad (España), Ministerio de Ciencia, Innovación y Universidades (España), Pérez Rodríguez, Sara, Sebastián del Río, David, Alegre Gresa, Cinthia, Tsoncheva, T., Paneva, D., Lázaro Elorri, María Jesús, Pérez Rodríguez, Sara [0000-0002-8255-6904], Sebastián del Río, David [0000-0002-7722-2993], Alegre Gresa, Cinthia [0000-0003-1221-6311], Tsoncheva, T. [0000-0002-8202-9012], Paneva, D. [0000-0002-2644-203X], Lázaro Elorri, María Jesús [0000-0002-4769-2564] |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
General Chemical Engineering
chemistry.chemical_element 02 engineering and technology 010402 general chemistry Electrochemistry Furfural 01 natural sciences Catalysis Oxygen reduction reaction chemistry.chemical_compound Biomass waste-derived carbons medicine Iron-nitrogen catalysts Coal tar Fuel cells Activated carbons Tafel equation Nanoporous 021001 nanoscience & nanotechnology Nitrogen 0104 chemical sciences chemistry Chemical engineering 0210 nano-technology medicine.drug Activated carbon |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname Digital.CSIC: Repositorio Institucional del CSIC Consejo Superior de Investigaciones Científicas (CSIC) |
| Popis: | 11 figures, 4 tables.-- Información suplementaria. Biomass from agricultural by-products is gaining increasing interest as cheap and abundant precursor in the development of active materials for efficient and environmentally friendly devices like fuel cells. Herein, we investigated iron and nitrogen co-doped nanoporous carbons derived from aronia, peach stones and coal tar pitch/furfural as electrocatalysts for the electrochemical oxygen reduction reaction (ORR) in alkaline media. Urea was used as nitrogen precursor and two annealing steps with intermediate acid leaching served to activate the catalysts. Within the series, the peach stone-derived catalyst exhibited a catalytic activity for the ORR close to the benchmark Pt/C, with a 60 mV dec−1 Tafel slope upon the incorporation of 0.57 wt% Fe and proper combination of N-Fe species (20%) with pyridinic/pyridonic moieties (49%). We concluded that the microporosity and a certain content of meso/macro-pores of the activated carbon, together with the creation of graphitic domains result in a high relative amount of Fe-N4 and nitrogen functionalities, which determine the electrocatalytic performance. The authors gratefully acknowledge financial support given by the project BLOW UP "Balkans Waste to Products: transfer of NoI model to Balkan area: de-siloing new waste-derived raw materials and developing new applications" from EIT RAW MATERIAL EIT16320, Horizon 2020. D. Sebastián and C. Alegre acknowledge the Ministry of Economy, Industry and Competitiveness for their Ramón y Cajal (RyC-2016-20944) and Juan de la Cierva Incorporación (IJCI-2017-32354) research contracts, respectively. |
| Databáze: | OpenAIRE |
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