Ulas, BerdanYilmaz, YoncaGok, OzgulKivrak, Hilal2025-05-102025-05-1020240957-58201744-359810.1016/j.psep.2024.03.0632-s2.0-85188800490https://doi.org/10.1016/j.psep.2024.03.063https://hdl.handle.net/20.500.14720/11030Ulas, Berdan/0000-0003-0650-0316; Kivrak, Hilal/0000-0001-8001-7854In this study, poly(ethylene glycol) (PEG) grafted cellulose (CE) composite catalyst support material (PEG -CE) was obtained by chemically cross -linking PEG at varying molecular weight and CE with isophorone diisocyanate (IPDI) and 2,4-toluylene diisocyanate (TDI). PEG -CE supported Pd (Pd/PEG-CE) catalyst was prepared by the chemical reduction method. The crystal size of the Pd/PEG-CE catalyst is 4.79 nm and its crystal structure has been determined to be face -centered cubic Pd. Elemental mapping results indicate that Pd was reduced onto PEGCE successfully and uniformly. Pd exists in the elemental and Pd -O form in the catalyst system. The Pd loading rate of Pd/PEG-C_IPDI catalyst was determined as 18.8% by mass. Among the PEG-CEs prepared with TDI and IPDI, PEG4000-CE_TDI and PEG6000-CE_IPDI displayed the highest specific activities of 1.03 and 1.50 mA cm -2 for glucose electrooxidation. With Pd reduction on PEG4000-CE_TDI and PEG6000-CE_IPDI, the specific activities increased to 1.62 mA cm -2 and 6.97 mA cm -2. Pd/PEG6000-CE_IPDI has the highest electrocatalytic activity and stability in this study for glucose electrooxidation and is an encouraging anode catalyst for direct glucose fuel cells.eninfo:eu-repo/semantics/closedAccessCellulosePolyethylene GlycolGlucose ElectrooxidationAnode CatalystArticle185Q1Q1772781WOS:001221385800001