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- W2556682786 abstract "Abstract This study introduces an alternative promising Pt-free catalyst of chitosan-nickel oxyhydroxide nanocomposite (nano-CS-NiOOH) with outstanding activity and durability towards glucose electrooxidation (Gox) and oxygen reduction reaction (ORR) compared to precious metal-based catalysts. Nano-CS-NiOOH modified glassy carbon (GC) electrode (nano-CS-NiOOH/GC) exhibits superb electrocatalytic activity, molecular selectivity and long-term durability for Gox. For instance, nano-CS-NiOOH/GC electrode shows ca. 10 times higher electrocatalytic activity and stability for Gox compared to nano-NiOOH/GC electrode with the same NiOOH weight. Additionally, the nano-CS-NiOOH/GC electrode exhibits a glucose sensitivity of 687 μA mM −1 cm −2 , which is 34-fold greater than that obtained at the nano-NiOOH/GC electrode (20 μA mM −1 cm −2 ) with lowest detection limit of 20 nM based on a signal-to-noise ratio of 3 and a linear range up to 8 mM. Furthermore, nano-CS-NiOOH/GC electrode showed a superior electrocatalytic activity and durability for both ORR and OER in alkaline medium compared to the commercial Pt/C electrode making it a high-performance non-precious metal-based bifunctional catalyst. NiOOH is believed to play a crucial role as a catalytic mediator to facilitate the charge transfer and chitosan is thought to enhance the catalytic activity and durability via stabilizing β-NiOOH and improving the adsorption of active species through its NH 2 and OH like functionalities." @default.
- W2556682786 created "2016-11-30" @default.
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- W2556682786 date "2017-05-01" @default.
- W2556682786 modified "2023-10-17" @default.
- W2556682786 title "One-pot synthesis of a high performance chitosan-nickel oxyhydroxide nanocomposite for glucose fuel cell and electro-sensing applications" @default.
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- W2556682786 doi "https://doi.org/10.1016/j.apcatb.2016.11.031" @default.
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