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Showing 1 to 8 of 8 for “"electrochemical active surface area"”.
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Evaluation of metal nitrides and borides as alternative electrocatalyst support materials for polymer electrolyte fuel cells
… dissolution and sintering. Hence, the electrochemical active surface area is significantly reduced. It is clear that there is an urgent need for more robust, high performance alternative support materials to carbon. In this study, metal nitrides and borides (TiN, ZrN, TiB₂ , ZrB₂ and …
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Rational Design of Trimetallic Electrocatalyst for Electrochemical Overall Water Splitting
… due to the improved conductivity and increased electrochemical active surface area after annealing. Benefitting from the enhanced HER and remained OER activities, the trimetallic CoFeW electrodes require a cell voltage of 1.57 V (10 mA∙cm-2) to drive overall water splitting. However, the overall …
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Towards identifying platinum anchor sites on carbon via a model electrochemical system
… its carbon support was investigated by a model electrochemical system. This entailed aggressively oxidising a two-dimensional carbon substrate, i.e. highly orientated pyrolytic graphite (HOPG) and mirror finish graphite (MFG) quartz crystal, to incorporate oxygen terminated groups into the …
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Synthesis and characterization of Pt/TiO2/C composite catalysts for fuel cells prepared using a glucose modifier
… of their exceptional catalytic activity and electrochemical active surface area. The performance and stability of these electrodes strongly depend on the characteristics of the support. Catalysts supported on high surface area carbon black are widely used in low-temperature fuel cells. In …
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Alloy catalysts for fuel cell-based alcohol sensors
Direct ethanol fuel cells (DEFCs) are attractive from both economic and environmental standpoints for generating renewable energy and powering vehicles and portable electronic devices. The cost and performance of the DEFCs are mainly controlled by the Pt-base catalysts used at each electrode. In …
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SYNTHESIS AND CHARACTERIZATION OF NEW ELECTROCATALYTIC MATERIALS TO IMPROVE THE PERFORMANCE, OPERABILITY AND LIFE-TIME OF PEMFCS
… the load of the catalysts, materials with high surface area and pore volume, commonly carbons, are widely used as catalyst supports in low-temperature fuel cells. The support materials can enhance the dispersion of metal particles. In addition, an interaction effect between the support material …
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Design, characterization and modelling of electrodes and structures for Bio-Electrochemical devices
L'abstract è presente nell'allegato / the abstract is in the attachment
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Σύνθεση, φυσικοχημικός και ηλεκτροχημικός χαρακτηρισμός ηλεκτροκαταλυτών για κυψελίδες καυσίμου υψηλής θερμοκρασίας pem
… πραγματικής ηλεκτροχημικά ενεργού επιφάνειας (electrochemical active surface area, ECSA) πολυμερικής μεμβράνης TPS®│Pt/C, στις ίδιες συνθήκες με εκείνες των υπό μελέτη αντιδράσεων. Μελετήθηκαν MEAs με διαφορετικές παραμέτρους σχεδιασμού (ποσότητα H3PO4 και φόρτιση Pt στο καθοδικό ηλεκτρόδιο) σε …