Graphene oxide influence on selected properties of polymer fuel cells based on Nafion
PBN-AR
Instytucja
Wydział Matematyki, Fizyki i Chemii (Uniwersytet Śląski w Katowicach)
Źródłowe zdarzenia ewaluacyjne
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (35pkt w roku publikacji)
ISSN
0360-3199
EISSN
Wydawca
PERGAMON-ELSEVIER SCIENCE LTD
DOI
URL
Rok publikacji
2017
Numer zeszytu
22
Strony od-do
15359-15369
Numer tomu
42
Identyfikator DOI
Liczba arkuszy
0,50
Słowa kluczowe
EN
Graphene oxide
Polymer fuel cells
Pt catalyst
Electrochemical properties
Streszczenia
Język
EN
Treść
Graphene oxide (GO) was used as an additive to the anode, to modify the electrochemical properties of polymer fuel cells (PEMFC) based on Nafion. GO was obtained by modified Hummers method and fully characterized by Raman, FTIR, X-ray, TEM, electrochemically (CV) and Surface Area and Porosity Analyzer. PEMFC with a GO-based anode containing about 30% less Pt, was constructed and compared with a cell with standard anodes. The electrodes were electrochemically tested at 25 and 60 °C. A maximum power density of 134 mW/cm2 with a current density of 374 mA/cm2 was achieved for PEMFC with GO-based anode at 60 °C. The electrochemical surface area (ECSA) of the PEMFC with GO-based anode was about two times higher than that of the reference device. The electrochemical characterization as well as the Brunauer–Emmett–Teller (BET) and Barrett–Joyner–Halenda (BJH) analysis indicate that GO in the anode reduced Pt agglomeration, as a consequence of the increased surface area and decreased average pore width, compared with the reference electrode. Well-fitted equivalent circuits were proposed and discussed after an electrochemical impedance spectroscopy study of the constructed devices.
Cechy publikacji
original-article
Inne
System-identifier
3342900143934
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