Electrochemical Properties of MnO[sub x]–RuO[sub 2] Nanofiber Mats Synthesized by Co-Electrospinning

Hyun, Tae-Seon; Kang, Jieun; Kim, Ho Gi; Hong, Jae Min; Kim, Il‐Doo

doi:10.1149/1.3224899

Cited by 36 publications

(27 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…121,[167][168][169][170][171] As a very high conductivity metal oxide, RuO 2 has been known as a performing pseudocapacitive material. 104,172,121,173 Recently, Dai and co-workers synthesized a capacitor-like RuO 2 -graphene (~30 wt% graphene sheets) hybrid in solutions, 121 which showed a specific capacitance of ~370 F g -1 (at 2 mV s -1 ) and ~280 F g -1 at a scan rate of 40 mV s -1 in 1M KOH solution for a 0.2 V to -1.0 V voltage range. Another investigation of the performance of RuO 2 -rGO hybrid (Fig.…”

Section: Graphene-metal Oxides and Hydroxidesmentioning

confidence: 99%

Supercapacitor electrode materials: nanostructures from 0 to 3 dimensions

Tetard

Zhai

et al. 2015

Energy Environ. Sci.

2,231

1,039

View full text Add to dashboard Cite

The ever-growing global demand of energy together with the depletion of fossil fuels makes it critical to develop sustainable and renewable energy resources. Developing relevant energy storage systems (e.g. batteries and supercapacitors) is essential to utilizing sustainable and renewable energy resources. A supercapacitor is highly beneficial in storing renewable energy. For example, when light is not shining or wind is not blowing, the energy needs to be stored in devices like batteries and supercapacitors. Among the efforts of building efficient supercapacitors, electrode materials with rational nanostructured designs have offered major improvements in performance over the past several years. This review article is intended to examine recent progress in nanostructuring supercapacitor electrode materials, highlighting the fundamental understanding of the relationship between structural properties and electrochemical performances, as well as an outlook on the next generation of nanostructured supercapacitor electrodes design. REVIEW This journal isSupercapacitors have drawn considerable attention in recent years due to their high specific power, long cycle life, and ability to bridge the power/energy gap between conventional capacitors and batteries/fuel cells. Nanostructured electrode materials have demonstrated superior electrochemical properties in producing high-performance supercapacitors. In this review article, we describe the recent progress and advances in designing nanostructured supercapacitor electrode materials based on various dimensions ranging from zero to three. We highlight the effect of nanostructures on the properties of supercapacitors including specific capacitance, rate capability and cycle stability, which may serve as a guideline for the next generation of supercapacitor electrode design.

show abstract

Section: Graphene-metal Oxides and Hydroxidesmentioning

confidence: 99%

Supercapacitor electrode materials: nanostructures from 0 to 3 dimensions

Tetard

Zhai

et al. 2015

Energy Environ. Sci.

2,231

1,039

View full text Add to dashboard Cite

show abstract

“…MnO 2 and Mn 3 O 4 have been explored for the oxidation of methane and carbon monoxide as well as the selective reduction of nitrobenzene [16]. Owing to its low cost, high chemical stability and reasonably high specific capacitance, MnO 2 has also been employed as promising electrode material in batteries and electrochemical capacitors [16,17]. Mn 2 O 3 is known as a cheap, environmentalfriendly catalyst in the oxidation of organic pollutants and nitrogen oxides decomposition [18,19].…”

Section: Introductionmentioning

confidence: 99%

Sensitive Hydrazine Detection Using a Porous Mn₂O₃ Nanofibers‐Based Sensor

Ding

Hou

et al. 2011

Electroanalysis

View full text Add to dashboard Cite

Following a facile two-step synthetic route (electrospinning and subsequent calcination), highly porous Mn 2 O 3 nanofibers (1 105 nm) were fabricated. The as-prepared Mn 2 O 3 nanofibers were applied to construct an amperometric sensor for hydrazine detection in neutral phosphate buffer. The developed hydrazine sensor showed a fast response time (within 5 s), a wide linear range up to 644 mM, a high sensitivity of 474 mA mM À1 cm À2, a good limit of detection of 0.3 mM (S/N = 3) as well as good reproducibility and selectivity. These results demonstrate that Mn 2 O 3 nanofibers have great potential in the application of hydrazine detection.

show abstract

“…For example, Li et al reported that Ni-embedded carbon nanofibers produced a specific capacitance of 164.0 F/g in 6 mol/L KOH electrolyte at a scan rate of 2 mV/s [7]. Hyun et al synthesized MnO x -RuO 2 nanofibers by a co-electrospinning method to fabricate electrochemical capacitors and showed that the nanofibers having a high porosity and a high surface area yielded a specific capacitance of 208.7 F/g at a scan rate of 10 mV/s [8]. Chen et al reported on the fabrication of electrochemical capacitors using In 2 O 3 nanowires/carbon nanotube electrodes synthesized by pulsed laser deposition and vacuum filtration methods, giving a good retention of capacity (∼88%) up to 500 cycles and a capacitance of 64 F/g [9].…”

Section: Introductionmentioning

confidence: 99%