Open AccessModified screen-printed electrode using graphene ink for electrochemical sensor application
Author(s) -
Isa Anshori,
Suksmandhira Harimurti,
Lavita Nuraviana Rizalputri,
Michelle Hartono,
Raih Rona Althof,
Murni Handayani,
Tati L. R. Mengko,
Brian Yuliarto
Publication year - 2021
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 - 10.1088/1742-6596/1912/1/012022
Subject(s) - graphene , materials science , electrode , nanomaterials , graphene foam , polyurethane , specific surface area , nanotechnology , screen printing , carbon black , carbon fibers , working electrode , cyclic voltammetry , electrolyte , inkwell , conductive ink , electrochemistry , graphene oxide paper , composite material , composite number , sheet resistance , chemistry , layer (electronics) , organic chemistry , natural rubber , catalysis
In lab-on-chip development, screen printed electrode (SPE) method is usually utilized as an electrochemical sensor. As a basic conductive material, carbon has several advantages compared to other conductive materials. SPE performance can be enhanced by using a nanomaterial due to its unique properties, such as its small size particle and large surface area that can accelerate the electron transfer on the surface of the electrode. Graphene as a carbon-based nanomaterial is an extraordinary material to work with because of its good electrical conductivity and large specific surface area. In this work, we developed a graphene paste from the water-based graphene ink with the addition of polyurethane binder material to realize a nanocarbon conductive paste, which insoluble in water and other electrolytes. Our graphene paste was deposited on the working electrode area of SPE and the performance was tested using cyclic voltammetry method. The result showed that the optimal ratio for the graphene carbon paste, polyurethane to graphene ink, was 1:15 %vol. With this ratio, the performance of the modified SPE could successfully be increased and it also showed a stable sensing performance by having a low error value, below 3%, for 7 times of repeated measurements.