TY - JOUR
T1 - Electrooxidation of ethylene glycol on carbon black-supported palladium-Ruthenium nanoparticle's surface
AU - Mudzunga, Vhahangwele
AU - Matthews, Thabo
AU - Patrick Mbokazi, Siyabonga
AU - Maxakato, Nobanathi Wendy
AU - Fakayode, Olayemi J.
AU - Mokrani, Touhami
AU - Sigwadi, Rudzani
N1 - Publisher Copyright:
© 2024 The Author(s)
PY - 2025/2/1
Y1 - 2025/2/1
N2 - The study involved the conversion of Palladium (Pd) and Ruthenium (Ru) metal-supported carbon black (CB) into a hybrid nano electrocatalyst using the microwave synthesis method. Among the four tested catalysts (Pd/CB, Pd1Ru1, Pd1Ru2, and Pd2Ru1), Pd2Ru1 electrocatalyst demonstrated the most effective performance for ethylene glycol electrooxidation (−0.51 V onset potential, 0.13 mA/cm2 current density and −0.21 V anodic peak potential). The physical and chemical properties of the hybrid electrocatalysts were characterized using optical and electrochemical techniques. Additionally, the electrochemical test indicated that Pd2Ru1 exhibited superior poisoning resistance and improved electrochemical stability compared to other tested materials. Also, the catalyst generated close to 0.055 A hydrogen production current while the presence of ethanol enhanced the oxidative current. The performance of the cell at two different temperatures (22 and 56 °C) was also elucidated with up to 0.87 and 0.57 V voltage outputs respectively. The study revealed the potential of Pd2Ru1 as an efficient anodic electrocatalyst in the ethylene glycol direct fuel cell assemblies.
AB - The study involved the conversion of Palladium (Pd) and Ruthenium (Ru) metal-supported carbon black (CB) into a hybrid nano electrocatalyst using the microwave synthesis method. Among the four tested catalysts (Pd/CB, Pd1Ru1, Pd1Ru2, and Pd2Ru1), Pd2Ru1 electrocatalyst demonstrated the most effective performance for ethylene glycol electrooxidation (−0.51 V onset potential, 0.13 mA/cm2 current density and −0.21 V anodic peak potential). The physical and chemical properties of the hybrid electrocatalysts were characterized using optical and electrochemical techniques. Additionally, the electrochemical test indicated that Pd2Ru1 exhibited superior poisoning resistance and improved electrochemical stability compared to other tested materials. Also, the catalyst generated close to 0.055 A hydrogen production current while the presence of ethanol enhanced the oxidative current. The performance of the cell at two different temperatures (22 and 56 °C) was also elucidated with up to 0.87 and 0.57 V voltage outputs respectively. The study revealed the potential of Pd2Ru1 as an efficient anodic electrocatalyst in the ethylene glycol direct fuel cell assemblies.
KW - Electrocatalysts
KW - Ethylene glycol
KW - Fuel cell
KW - Palladium
KW - Ruthenium
UR - http://www.scopus.com/inward/record.url?scp=85206139266&partnerID=8YFLogxK
U2 - 10.1016/j.fuel.2024.133396
DO - 10.1016/j.fuel.2024.133396
M3 - Article
AN - SCOPUS:85206139266
SN - 0016-2361
VL - 381
JO - Fuel
JF - Fuel
M1 - 133396
ER -