NDLI: Capacitive performance enhancements of RuO<sub>2</sub> nanocrystals through manipulation of preferential orientation growth originated from the synergy of Pluronic F127 trapping and annealing

Content Provider	Royal Society of Chemistry (RSC)
Author	Chen, Tsan-Yao Hu, Chi-Chang Chen, I.-Li Lin, Tsang-Lang Wei, Yu-Chen
Copyright Year	2014
Abstract	The capacitive performances of RuO2 prepared by oxidation precipitation of Ru precursors (RuCl3·xH2O) surrounded with tri-block co-polymer, Pluronic F127, in aqueous media can be enhanced through manipulating its preferential orientation growth of nanocrystals. From the heterogeneous surface chemistry viewpoints with the support of structure characterizations, such enhancement originates from the preferential orientation growth of the {101} facet due to the adsorption of the highly polarisable, non-ionic ligands of Pluronic F127 on the high surface energy facets on RuO2 nanocrystallites. In this case, the F127-trapped sample with annealing at 300 °C enhances the specific capacitance 1.6-fold in comparison to its counterpart without F127. With the mechanistic insight into the heterogeneous surface crystal growth pathways, our results materialize the development of RuO2 with tuneable capacitive performances. Furthermore, due to the different propagation models of RuO2 with and without F127 trapping, a schematic diagram is proposed to interpret such a unique crystal growth evolution phenomenon.
Starting Page	2861
Ending Page	2871
Page Count	11
File Format	HTM / HTML PDF
ISSN	20403364
Volume Number	6
Issue Number	5
Journal	Nanoscale
DOI	10.1039/c3nr04479c
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Adsorption Surface science Capacitance Surface energy Nucleic acid thermodynamics
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology

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