The theory of wave propagation in excitable media in the presence of an electric field can be described by reaction diffusion equations,where u = [u, v]T, , and and are constant matrices. In this paper, we use the FitzHugh-Nagumo kinetics49, 50, i.e., and . and are both set to be . Throughout this work, we choose a set of parameter values as ε = 0.22, β = 0.58, and γ = 0.8, such that the medium is highly excitable (see Fig. 1(a)).
The h-BNNS and Pt NPs were synthesized according to previous reports33,34. The preparation of Pt/h-BNNS catalyst follows a sonication-assisted colloidal deposition and the process is presented in the Experimental section. Figure 2a and Supplementary Fig. 1 show the representative bright-field transmission electron microscopy (TEM) and scanning transmission electron microscopy (STEM) images of exfoliated few-layer h-BNNS with high exposure edge and 5±0.5 nm cubic Pt NPs.
Muck Rack makes it simple to find people, tweets, or articles that mention any name, keyword, company, hashtag etc. We've compiled this guide to help you make the most of your search.
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