Jump to main content
Jump to site search

Issue 6, 2019
Previous Article Next Article

Tuning the oscillatory dynamics of the Belousov–Zhabotinsky reaction using ruthenium nanoparticle decorated graphene

Author affiliations

Abstract

The classic Belousov–Zhabotinsky (BZ) reaction, which involves transition metal catalysed redox reactions, represents a family of nonlinear chemical oscillators. Here, we show that it is possible to tune the oscillatory dynamics of the BZ reaction by using a hybrid 2D material, i.e., graphene-based nanosheets decorated with Ru nanoparticles. Specifically, we demonstrate that the frequency of chemical oscillations in a BZ reaction increases, by up to four-fold, when catalyzed by the Ru–graphene nanocomposite. We show that this observed behaviour is attributed to enhanced access to active catalytic sites on Ru nanoparticles, as well as the rapid shuttling of electrons facilitated by the highly conductive graphene platform. We further demonstrate that this enhancement of oscillations facilitated by the graphene platform can be simulated using the Oregonator model. Our numerical simulations reveal a strong correlation between the rate of charge transfer and the frequency of chemical oscillations. This ability of a 2D material, like graphene, to influence the dynamics of an oscillatory chemical reaction, as showcased in this work, is studied for the first time and opens up new avenues to tune the dynamics of chemical oscillators. We anticipate that these findings would enable us to design a variety of intrinsically powered biomimetic systems with controllable dynamic behavior.

Graphical abstract: Tuning the oscillatory dynamics of the Belousov–Zhabotinsky reaction using ruthenium nanoparticle decorated graphene

Back to tab navigation

Supplementary files

Article information


Submitted
31 Oct 2018
Accepted
16 Jan 2019
First published
16 Jan 2019

Phys. Chem. Chem. Phys., 2019,21, 3164-3173
Article type
Paper

Tuning the oscillatory dynamics of the Belousov–Zhabotinsky reaction using ruthenium nanoparticle decorated graphene

D. J. Prasanna Kumar, S. Verma, K. Jasuja and P. Dayal, Phys. Chem. Chem. Phys., 2019, 21, 3164 DOI: 10.1039/C8CP06766J

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements