Electrochemical Transparency of Graphene
Source abstract
Abstract
In the present study, we used the electrochemical transparency of graphene to show that the direct intercalation of alkali-metal cations is not a prerequisite for the redox reaction of Prussian blue (PB). PB thin films passivated with monolayer graphene still underwent electrochemical redox reactions in the presence of alkali-metal ions (K+ or Na+) despite the inability of the cations to penetrate the graphene and be incorporated into the PB. Graphene passivation not only preserved the electrochemical activity of the PB but also substantially enhanced the stability of the PB. As a proof of concept, we showed that a transparent graphene electrode covering PB can be used as an excellent hydrogen peroxide transducer, thereby demonstrating the possibility of realizing an electrochemical sensor capable of long-term measurements.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Analytical Chemistry and Sensors · Electrochemical Analysis and Applications · Conducting polymers and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Korea
Department of Physics and Graphene Research Institute, Sejong University, Seoul 05006, Republic of Korea
Chemical Platform Technology Division, Korea Research Institute of Chemical Technology (KRICT), Gajeong-ro 141, Daejeon 34114, Republic of Korea
Department of Electrical Engineering, Semyung University, Semyung-ro 65, Jecheon 27136, Republic of Korea
Funding
Korea Research Institute of Chemical Technology · National Research Foundation of Korea
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