Optimization of nanostructured hydrous RuO 2/carbon supercapacitor

Hansung Kim; B. N. Popov

Optimization of nanostructured hydrous RuO ₂/carbon supercapacitor

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Conference article › peer-review

Abstract

Amorphous nanostructured ruthenium oxide on carbon was prepared by colloidal method using RuCl ₃·xH ₂O (39.99wt% Ru) and NaHCO ₃ (Aldrich) at pH=5. FTRaman study confirmed that ruthenium complex converted to ruthenium oxide after annealing at 100 °C. The specific capacitance of RuO ₂/carbon composite electrode (40wt% Ru) was calculated by using cyclic voltammetry to be 407 F/g. The specific capacitance of RuO ₂·nH ₂O was estimated to be approximately 840 F/g by subtracting the contribution of double layer capacitance resulting from carbon in the composite. Transmission electron microscopy indicated that the particle size of RuO ₂·nH ₂O on carbon was approximately 3nm. The observed very high specific capacitance is due to the increase in the utilization of the active material of the amorphous nanostructured RuO ₂·nH ₂O particles.

Original language	English
Pages (from-to)	929-933
Number of pages	5
Journal	Proceedings of the Intersociety Energy Conversion Engineering Conference
Volume	2
Publication status	Published - 2001
Event	Proceedings of the 36th Intersociety Energy Conversion Engineering Conference, IECEC - Savannah, GA, United States Duration: 2001 Jul 29 → 2001 Aug 2

All Science Journal Classification (ASJC) codes

Fuel Technology
Electrical and Electronic Engineering

Cite this

@article{16856b1aa6a14b8b9b76ace65a7af4ce,

title = "Optimization of nanostructured hydrous RuO 2/carbon supercapacitor",

abstract = "Amorphous nanostructured ruthenium oxide on carbon was prepared by colloidal method using RuCl 3·xH 2O (39.99wt% Ru) and NaHCO 3 (Aldrich) at pH=5. FTRaman study confirmed that ruthenium complex converted to ruthenium oxide after annealing at 100 °C. The specific capacitance of RuO 2/carbon composite electrode (40wt% Ru) was calculated by using cyclic voltammetry to be 407 F/g. The specific capacitance of RuO 2·nH 2O was estimated to be approximately 840 F/g by subtracting the contribution of double layer capacitance resulting from carbon in the composite. Transmission electron microscopy indicated that the particle size of RuO 2·nH 2O on carbon was approximately 3nm. The observed very high specific capacitance is due to the increase in the utilization of the active material of the amorphous nanostructured RuO 2·nH 2O particles.",

author = "Hansung Kim and Popov, {B. N.}",

year = "2001",

language = "English",

volume = "2",

pages = "929--933",

journal = "Proceedings of the Intersociety Energy Conversion Engineering Conference",

issn = "0146-955X",

note = "Proceedings of the 36th Intersociety Energy Conversion Engineering Conference, IECEC ; Conference date: 29-07-2001 Through 02-08-2001",

}

TY - JOUR

T1 - Optimization of nanostructured hydrous RuO 2/carbon supercapacitor

AU - Kim, Hansung

AU - Popov, B. N.

PY - 2001

Y1 - 2001

N2 - Amorphous nanostructured ruthenium oxide on carbon was prepared by colloidal method using RuCl 3·xH 2O (39.99wt% Ru) and NaHCO 3 (Aldrich) at pH=5. FTRaman study confirmed that ruthenium complex converted to ruthenium oxide after annealing at 100 °C. The specific capacitance of RuO 2/carbon composite electrode (40wt% Ru) was calculated by using cyclic voltammetry to be 407 F/g. The specific capacitance of RuO 2·nH 2O was estimated to be approximately 840 F/g by subtracting the contribution of double layer capacitance resulting from carbon in the composite. Transmission electron microscopy indicated that the particle size of RuO 2·nH 2O on carbon was approximately 3nm. The observed very high specific capacitance is due to the increase in the utilization of the active material of the amorphous nanostructured RuO 2·nH 2O particles.

AB - Amorphous nanostructured ruthenium oxide on carbon was prepared by colloidal method using RuCl 3·xH 2O (39.99wt% Ru) and NaHCO 3 (Aldrich) at pH=5. FTRaman study confirmed that ruthenium complex converted to ruthenium oxide after annealing at 100 °C. The specific capacitance of RuO 2/carbon composite electrode (40wt% Ru) was calculated by using cyclic voltammetry to be 407 F/g. The specific capacitance of RuO 2·nH 2O was estimated to be approximately 840 F/g by subtracting the contribution of double layer capacitance resulting from carbon in the composite. Transmission electron microscopy indicated that the particle size of RuO 2·nH 2O on carbon was approximately 3nm. The observed very high specific capacitance is due to the increase in the utilization of the active material of the amorphous nanostructured RuO 2·nH 2O particles.

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M3 - Conference article

AN - SCOPUS:0346781797

SN - 0146-955X

VL - 2

SP - 929

EP - 933

JO - Proceedings of the Intersociety Energy Conversion Engineering Conference

JF - Proceedings of the Intersociety Energy Conversion Engineering Conference

T2 - Proceedings of the 36th Intersociety Energy Conversion Engineering Conference, IECEC

Y2 - 29 July 2001 through 2 August 2001

ER -

Optimization of nanostructured hydrous RuO ₂/carbon supercapacitor

Abstract

All Science Journal Classification (ASJC) codes

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