Open AccessUsing Galistan to fabricate porous gold electrodes: toward non-enzymatic glucose fuel cells with enhanced performance for driving wearable/bioelectronic devices
Author(s) -
Denis Desmaële,
Francesco La Malfa,
Francesco Rizzi,
Antonio Qualtieri,
Mirella Di Lorenzo,
Massimo De Vittorio
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1407/1/012068
Subject(s) - fabrication , materials science , porosity , electrode , nanotechnology , wearable technology , power density , wearable computer , chemical engineering , power (physics) , chemistry , computer science , engineering , composite material , medicine , alternative medicine , physics , pathology , quantum mechanics , embedded system
This paper presents a new facile route for the fabrication of enzyme-free porous gold electrodes (PGEs) which can directly convert the chemical energy of glucose into electricity. The method is low-cost and does not require any special equipment: porous gold is simply grown on carbon paper containing liquid metal particles. As a first proof-of-concept, we report on the fabrication of circular PGEs having a diameter of 12.5 mm. When immersed in a 10 mM glucose solution, such PGEs can produce up to 25 µ W (maximum power density 10 µ W · cm −2 at 45 µ A · cm −2 ). Because the process presented is versatile and scalable, we envision PGEs with long-term stability that could be stacked to meet the power budget of various wearable/bioelectronic devices.