The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Voltammetric Characterization of Ruthenium Oxide-Based Aerogels and Other RuO2Solids: The Nature of Capacitance in Nanostructured Materials
Abstract
Ruthenium dioxide is an important electrode material for applications in electrocatalysis and power sources. High surface areas are achieved in hydrous RuO 2 precipitates and in mixed ruthenium oxide−titanium oxide, (Ru−Ti)O x, aerogels (in which nanoscale domains are networked to form a highly porous structure). The electrochemical properties of (Ru−Ti)O x aerogels, RuO 2, and hydrous RuO 2 are examined by direct pressing of sub-milligram quantities of the solid onto the surface of a conductive carbon/wax composite. Voltammetric measurements in acidic electrolyte confirm a pseudocapacitive response for all the RuO x -based materials. Despite an improvement in BET surface area, as compared with other RuO 2 materials, the (Ru−Ti)O x aerogel displays a low specific capacitance, which correlates to the high degree of crystallinity of the aerogel. Nanocrystallites of rutile RuO 2, formed during thermal treatment of the sol−gel Ru/Ti precursors, deleteriously affect the specific capacitance of the material; however, all RuO x domains in the aerogel are voltammetrically addressable. The influence of proton-donating species on the observed capacitance for the (Ru−Ti)O x aerogel is evident from the dependence of the voltammetric charge in acidic electrolyte on the potential scan rate.
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Citations
Cites
Titanium dioxide aerogels for photocatalytic decontamination of aquatic environments
Dagan, G., & Tomkiewicz, M. (1993) · The Journal of Physical Chemistry · doi:10.1021/j100151a001 · Cited by 284
Cited by
Chemistry of Aerogels and Their Applications
Pierre, A. C., & Pajonk, G. M. (2002) · Chemical Reviews · doi:10.1021/cr0101306 · Cited by 2,239
Achieving high energy density and high power density with pseudocapacitive materials
Choi, C., Ashby, D. S., Butts, D. M., DeBlock, R. H., Wei, Q., Lau, J., & Dunn, B. (2019) · Nature Reviews Materials · doi:10.1038/s41578-019-0142-z · Cited by 1,964
Electrically conductive oxide aerogels: new materials in electrochemistry
Rolison, D. R., & Dunn, B. (2001) · Journal of Materials Chemistry · doi:10.1039/b007591o · Cited by 357
Self-citationKarmakar, A., & Kundu, S. (2023) · Materials Today Energy · doi:10.1016/j.mtener.2023.101259 · Cited by 131
Synthesis of high-surface-area ruthenium oxide aerogels by non-alkoxide sol–gel route
Suh, D. J., Park, T.-J., Kim, W.-I., & Hong, I.-K. (2003) · Journal of Power Sources · doi:10.1016/s0378-7753(02)00617-1 · Cited by 44
Metadata
- Authors
- Long, J. W., Swider, K. E., Merzbacher, C. I., & Rolison, D. R.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 1999-01-07
- Volume
- 15
- Issue
- 3
- Pages
- 780-785
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2030124799
- Cited by
- 295
- References
- 1
- FWCI
- 5.34
- Type
- journal article
- Language
- en
- Open access
- closed
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- Long, J. W., Swider, K. E., Merzbacher, C. I., & Rolison, D. R. (1999). Voltammetric Characterization of Ruthenium Oxide-Based Aerogels and Other RuO2Solids: The Nature of Capacitance in Nanostructured Materials. Langmuir. https://doi.org/10.1021/la980785a
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