2019
DOI: 10.1021/acsami.9b01712
|View full text |Cite
|
Sign up to set email alerts
|

High-Energy Flexible Supercapacitor—Synergistic Effects of Polyhydroquinone and RuO2·xH2O with Microsized, Few-Layered, Self-Supportive Exfoliated-Graphite Sheets

Abstract: An effective and straightforward route for tailoring the self-supporting, exfoliated flexible graphite substrate (E-FGS) using electrochemical anodization is proposed. E-FGS has essential features of highly exfoliated, few-layered, two-dimensional graphite sheets with the size of several tens of micrometers, interconnected along the axis of the substrate surface. The novel hierarchical porous structural morphology of E-FGS enables large active sites for efficient electrolyte ion and charge transport when used … Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1

Citation Types

1
33
0

Year Published

2019
2019
2022
2022

Publication Types

Select...
6
1

Relationship

1
6

Authors

Journals

citations
Cited by 53 publications
(34 citation statements)
references
References 60 publications
1
33
0
Order By: Relevance
“…While on the other hand, the exfoliated graphene sheets were deposited with the hydrous RuO 2 particles and polyhydroquinone through the simple electrodeposition process. [ 125 ] Due to the hydroquinone having more hydroxylated groups compared to any other conducting polymers, the exchange of protons is more feasible in addition and oxidation reaction reactions. Thus, when the RuO 2 is added, the hydrous part of RuO 2 in the electrochemical reaction expresses a very high conductivity and as expected the discharge cycles were also longer.…”
Section: Conventional Electrode Materialsmentioning
confidence: 99%
“…While on the other hand, the exfoliated graphene sheets were deposited with the hydrous RuO 2 particles and polyhydroquinone through the simple electrodeposition process. [ 125 ] Due to the hydroquinone having more hydroxylated groups compared to any other conducting polymers, the exchange of protons is more feasible in addition and oxidation reaction reactions. Thus, when the RuO 2 is added, the hydrous part of RuO 2 in the electrochemical reaction expresses a very high conductivity and as expected the discharge cycles were also longer.…”
Section: Conventional Electrode Materialsmentioning
confidence: 99%
“…The deconvoluted Ru 3p spectrum of RuO 2 exhibits two peaks corresponding to Ru 3p 3/2 and Ru 3p 1/2 , which consist of Ru 4 + peaks (463.9 and 486.2 eV) as well as hydrous RuO 2 peaks (465.9 and 488.3 eV), and this can evidence the presence of RuO 2 . [39] Notablely, the Ru 3p spectrum for PANI/RuO 2 -38 shift to higher binding energy compared to that of RuO 2 , which indicates the electron redistribution at the interface between PANI and RuO 2 . Figure 2f shows that the O1s spectrum convoluted into three peaks at 530.3, 531.2, and 532.3 eV in RuO 2 are assigned to RuÀ OÀ Ru,…”
Section: Resultsmentioning
confidence: 94%
“…[38] It yields higher specific capacity than that of the crystalline RuO 2 attributed to the hydrous moiety involved in proton permeability. [39] In view of the overlap of the Ru 3d peaks with C 1s peak to some extent, the Ru 3p spectra is used for analyzing the Ru oxidation state (Figure 2e). The deconvoluted Ru 3p spectrum of RuO 2 exhibits two peaks corresponding to Ru 3p 3/2 and Ru 3p 1/2 , which consist of Ru 4 + peaks (463.9 and 486.2 eV) as well as hydrous RuO 2 peaks (465.9 and 488.3 eV), and this can evidence the presence of RuO 2 .…”
Section: Resultsmentioning
confidence: 99%
“…Energy and power density of this h‐RuO 2 /MWCNT was obtained E = 10.2 Wh/kg and P = 431 W/kg. Finally, Muniraj et al investigated the RuO 2 /CNOs material and found energy and power values of RuO 2 /CNOs as E = 10.62 Wh/kg and P = 4.456 kW/kg.…”
Section: Resultsmentioning
confidence: 99%