期刊
JOURNAL OF POWER SOURCES
卷 117, 期 1-2, 页码 1-6出版社
ELSEVIER
DOI: 10.1016/S0378-7753(02)00617-1
关键词
ruthenium oxide; Sol-gel; aerogel; surface area; specific capacitance
High-surface-area ruthenium oxide aerogels with pronounced mesoporosity are prepared by carbon dioxide supercritical drying of alcogels by a non-alkoxide sol-gel process with ruthenium chloride as a precursor and epoxide as a proton scavenger. The influence of various sol-gel preparation parameters both on gel formation and the textural properties and voltammetric response of the resulting ruthenium oxide aerogels are investigated systematically. The un-calcined ruthenium oxide aerogel in the amorphous phase possesses a surface area in excess of 350m(2) g(-1) has a specific capacitance as high as 595 F g(-1). (C) 2002 Elsevier Science B.V. All rights reserved.
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