2024-03-28T15:51:47Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/339922021-05-10T08:27:35Zcom_10261_66com_10261_3col_10261_319
00925njm 22002777a 4500
dc
Pico, F.
author
Morales, E.
author
Fernández, J. A.
author
Álvarez Centeno, Teresa
author
Ibáñez, Joaquín
author
Rojas, R. M.
author
Amarilla, José Manuel
author
Rojo, J. M.
author
2009-03-01
Composites have been prepared by depositing nanoparticles of RuO2.xH2O (1-5 nm) on two carbons: a microporous carbon (1.3 nm of pore size) and a mesoporous carbon (11 nm of pore size). The composites have been obtained by two ways: (i) way A consisting of an accumulative impregnation treatment of the carbons with RuCl3.0.5H2O solution, and (ii) way B consisting of a impregnation of the carbons with Ru(acac)3 vapour. The way B leads to supported RuO2.xH2O particles that appear more crystalline and more heterogeneous in size than those obtained by way A. Specific surface area and specific capacitance of the composites have been measured. The two magnitudes, which are analysed as a function of the RuO2 content, show very different dependences for the composites derived from the two carbons. They are discussed on the basis of the size of the supported RuO2.xH2O particles in comparison to the size of the carbon pores.
Electrochimica Acta 54 : 2239–2245 (2009)
0013-4686
http://hdl.handle.net/10261/33992
doi:10.1016/j.electacta.2008.10.028
10.1016/j.electacta.2008.10.028
ruthenium oxide
microporous carbon
mesoporous carbon
Ruthenium oxide/carbon composites having a microporous carbon or a mesoporous carbon as support. A comparative study as supercapacitor electrodes