TY - JOUR
T1 - Ag nanoparticles on mesoporous carbon support as cathode catalyst for anion exchange membrane fuel cell
AU - Linge, Jonas Mart
AU - Erikson, Heiki
AU - Mooste, Marek
AU - Piirsoo, Helle Mai
AU - Kaljuvee, Tiit
AU - Kikas, Arvo
AU - Aruväli, Jaan
AU - Kisand, Vambola
AU - Tamm, Aile
AU - Kannan, Arunachala M.
AU - Tammeveski, Kaido
N1 - Publisher Copyright:
© 2022 Hydrogen Energy Publications LLC
PY - 2023/4/5
Y1 - 2023/4/5
N2 - Silver nanocatalyst (40 wt%) is deposited on commercial mesoporous carbon support material (Ag/C) using two different wet chemical methods, to obtain high electrochemically active surface area. The catalyst materials are characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, thermogravimetric analysis and are evaluated toward the oxygen reduction reaction (ORR) in alkaline media employing the rotating disk electrode method. It is worth noting that the Ag/C leads to oxygen reduction through a direct four-electron pathway in alkaline medium. The silver catalyst on mesoporous carbon exhibits relatively higher mass activity for ORR (38 A g−1) compared to that with Vulcan carbon (32 A g−1) at −0.2 V vs SCE at room temperature. Anion exchange membrane fuel cell shows maximum power density of 310 mW cm−2 with Ag/C cathode catalyst using H2 and O2 gases at 65% RH conditions at 65 °C.
AB - Silver nanocatalyst (40 wt%) is deposited on commercial mesoporous carbon support material (Ag/C) using two different wet chemical methods, to obtain high electrochemically active surface area. The catalyst materials are characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, thermogravimetric analysis and are evaluated toward the oxygen reduction reaction (ORR) in alkaline media employing the rotating disk electrode method. It is worth noting that the Ag/C leads to oxygen reduction through a direct four-electron pathway in alkaline medium. The silver catalyst on mesoporous carbon exhibits relatively higher mass activity for ORR (38 A g−1) compared to that with Vulcan carbon (32 A g−1) at −0.2 V vs SCE at room temperature. Anion exchange membrane fuel cell shows maximum power density of 310 mW cm−2 with Ag/C cathode catalyst using H2 and O2 gases at 65% RH conditions at 65 °C.
KW - Ag nanoparticle
KW - Anion exchange membrane fuel cell
KW - Mesoporous carbon support
KW - Oxygen reduction reaction
UR - http://www.scopus.com/inward/record.url?scp=85145670922&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2022.12.138
DO - 10.1016/j.ijhydene.2022.12.138
M3 - Article
AN - SCOPUS:85145670922
SN - 0360-3199
VL - 48
SP - 11058
EP - 11070
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 29
ER -
