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Electrokinetic effects in catalytic platinum-insulator Janus swimmers
Open accessAbstract
The effect of added salt on the propulsion of Janus platinum-polystyrene colloids in hydrogen peroxide solution is studied experimentally. It is found that micromolar quantities of potassium and silver nitrate salts reduce the swimming velocity by similar amounts, while leading to significantly different effects on the overall rate of catalytic breakdown of hydrogen peroxide. It is argued that the seemingly paradoxical experimental observations could be theoretically explained by using a generalised reaction scheme that involves charged intermediates and has the topology of two nested loops.
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Citations
Cited by
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Zöttl, A., & Stark, H. (2016) · Journal of Physics: Condensed Matter · doi:10.1088/0953-8984/28/25/253001 · Cited by 426
Moran, J. L., & Posner, J. D. (2017) · Annual Review of Fluid Mechanics · doi:10.1146/annurev-fluid-122414-034456 · Cited by 426
Origins of concentration gradients for diffusiophoresis
Velegol, D., Garg, A., Guha, R., Kar, A., & Kumar, M. (2016) · Soft Matter · doi:10.1039/c6sm00052e · Cited by 356
Non‐Equilibrium Assembly of Light‐Activated Colloidal Mixtures
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Metadata
- Authors
- Ebbens, S., Gregory, D. A., Dunderdale, G., Howse, J. R., Ibrahim, Y., Liverpool, T. B., & Golestanian, R.
- Venue
- EPL (Europhysics Letters)
- Publisher
- IOP Publishing
- Published
- 2014-06-01
- Volume
- 106
- Issue
- 5
- Pages
- 58003
- ISSN
- 0295-5075 (ISSN-L)
- 1286-4854
- OpenAlex
- W2166864818
- Cited by
- 210
- References
- 0
- FWCI
- 16.30
- Type
- journal article
- Language
- en
- Open access
- green
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- Ebbens, S., Gregory, D. A., Dunderdale, G., Howse, J. R., Ibrahim, Y., Liverpool, T. B., & Golestanian, R. (2014). Electrokinetic effects in catalytic platinum-insulator Janus swimmers. EPL (Europhysics Letters). https://doi.org/10.1209/0295-5075/106/58003
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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