2016
DOI: 10.1007/s10008-015-3109-z
|View full text |Cite
|
Sign up to set email alerts
|

A model for the voltammetric behaviour of TiO2 memristors

Abstract: A model is solved based on the Nernst Planck equation to calculate the diffusion and migration currents for a species in a thin layer (about 200 nm) confined between two electrodes. This is proposed to account for the current voltage behaviour of a memristor constructed in a similar fashion. At the working electrode, an electroactive species is oxidised and at the counter electrode, the same species is reduced. Upon application of a simple voltammetric waveform, the migration current exhibits a resistance prof… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

1
5
0

Year Published

2017
2017
2024
2024

Publication Types

Select...
5

Relationship

1
4

Authors

Journals

citations
Cited by 5 publications
(6 citation statements)
references
References 30 publications
1
5
0
Order By: Relevance
“…As can be observed, the shape of the peaks, both the cathodic and anodic ones, confirmed the satisfactory performance of the SPEs in terms of anodic‐to‐cathodic ratio of ca. 1, demonstrating the absence of entrapments at the diverse surfaces, and also experiments carried out by varying the scan rate (up to 0.5 V/s) confirmed that current peaks increased linearly in both cases with the square root of the scan rate, and this is ascribable to a semi‐infinite linear diffusion‐controlled current [32–34] . In addition to this, as reported in Figure 2B, the three SPEs have been interrogated in presence of 0.1 M sulfuric acid by performing cyclic voltammetry.…”
Section: Resultssupporting
confidence: 55%
“…As can be observed, the shape of the peaks, both the cathodic and anodic ones, confirmed the satisfactory performance of the SPEs in terms of anodic‐to‐cathodic ratio of ca. 1, demonstrating the absence of entrapments at the diverse surfaces, and also experiments carried out by varying the scan rate (up to 0.5 V/s) confirmed that current peaks increased linearly in both cases with the square root of the scan rate, and this is ascribable to a semi‐infinite linear diffusion‐controlled current [32–34] . In addition to this, as reported in Figure 2B, the three SPEs have been interrogated in presence of 0.1 M sulfuric acid by performing cyclic voltammetry.…”
Section: Resultssupporting
confidence: 55%
“…In contrast, in region 3 (from 0.0 V to −0.5 V) in figure 3 there is a reversal of the reactions (5) and (6) which still allows for a reasonable current through the reversal of the original reactions (5,6) and (7). By the time we get to region 4 (from −0.5 V to 0.0 V) the movement of electrons and holes has decreased substantially, and the device returns rapidly to its original high resistance state.…”
Section: Resultsmentioning
confidence: 91%
“…Alternatively the anode material may also be oxidised [13,23]. xxxxxxxxxxx 2Al + 3 /2O2 → 3Vo •• + Al2O3 + 6e' (6) Meanwhile, at the cathode n-type TiO2 is formed through the reaction [23]:…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…Finally, gold electrodes in conjunction with [Fe(CN) 6 ] 3−/4− are well known to suffer from instability issues, including various electron transfer mechanisms, rates and corrosion. 38,39 This includes in thermogalvanic cells, where initial electrocatalysis by gold nanoparticles was previously observed to result in poor performance aer moderate operation times (relative to just graphite) due to passivating layers of Au/[Fe(CN) 6 ] 3−/4− reaction products forming. 40 However, in this study no evidence of this was observed when SAMs were present, so the ability of cationic SAMs to increase the longevity and stability of the thermocell system was explored.…”
Section: Evaluating a Sam's Ability To Improve Long-term Electrode St...mentioning
confidence: 99%