Non-enzyme glucose fuel cell with anode of gold nanoparticles deposited on a nanohemisphere array of nanoimprinted polyethylene terephthalate

• Published in: Sensors and actuators reports Vol. 9; p. 100347
• Main Authors: Phan, Trong Nghia, Wang, Gou-Jen
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.06.2025; Elsevier
• Subjects: AuNPs on nanohemisphere array anode; Graphene oxide cathode; Nonenzymatic glucose fuel cell; Polyethylene terephthalate substrate; AuNPs on nanohemisphere array anode; Nonenzymatic glucose fuel cell; Polyethylene terephthalate substrate; Graphene oxide cathode
• ISSN: 2666-0539; 2666-0539
• DOI: 10.1016/j.snr.2025.100347

•We propose a novel nonenzymatic glucose biofuel cell with an AuNPs@NHA anode.•AAO fabrication, Ni mode electroforming, and AuNPs deposition are utilized for anode fabrication.•The GBFC outputs a Pmax of 2.05 mW/cm2, a Voc of 0.66 V, and an Isc of 5.6 mA/cm2.•The energy conversion efficiency of the proposed GBFC is 51.3 %. In this study, a novel nonenzymatic glucose fuel cell (GFC) based on an anode of gold nanoparticles (AuNPs) deposited on a nanohemisphere array (NHA) is proposed. The novelty of the proposed GFC is a nanostructured anode with a few AuNPs uniformly deposited on an NHA of polyethylene terephthalate (PET). The NHA of PET is fabricated using nano-imprinting with a Ni mold that is electroformed using a barrier layer on an anodic aluminum oxide as a template. AuNPs are then electrochemically deposited on the surface of the NHA. The cathode consists of graphene oxide deposited on a glassy carbon electrode. A Nafion thin film acts as a proton exchange membrane to effectively separate the anode and cathode compartments. Experimental results demonstrate that the proposed nonenzymatic GFC achieves a power density of 2.05 mW/cm², a current density of 5.6 mA/cm², and an open-circuit voltage of 0.66 V. Notably, the advantages of this GFC include its enzyme-free operation, ease of production, low cost, and high repeatability. Consequently, it holds significant promise for commercialization and practical applications. [Display omitted]