Investigation of a Carbon-Supported Pt Electrode for Oxygen Reduction Reaction in 0.1M KOH Aqueous Solution

Jäger, Rutha; Härk, Eneli; Kasatkin, Piia Ereth; Lust, Enn

doi:10.1149/2.0491409jes

Cited by 32 publications

(64 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The corrected current density vs. potential (j c , E) curves for unmodified and modified carbon catalysts measured in 0.1 M KOH solution at the electrode rotation rate of 3000 rev min -1 ( Figure 5) indicate that the half-wave potential, E 1/2 , is shifted toward more positive potentials in the following order: Fe-Vulcan < Co-N-Vulcan < Co-N-C(Mo 2 C) < Fe-N-C(Mo 2 C) < Pt-C(Mo 2 C) (15,16,18). The Co-N-C(Mo 2 C) catalyst showed noticeably lower half-wave potential (∆E 1/2 ~ 50mV) toward the oxygen electroreduction reaction at room temperature compared with that for the Co-N-Vulcan electrode.…”

Section: Catalytic Activity Test Using Rde and CV Methodsmentioning

confidence: 99%

“…The higher catalytic activity of C(Mo 2 C) based electrocatalysts, compared with Vulcan based electrodes, is mainly caused by more amorphous, defective (20) and more developed hierarchical mesoporous and microporous structure of the carbon support used (15)(16)(17)(18)(21)(22)(23)(36)(37)(38).…”

Section: Catalytic Activity Test Using Rde and CV Methodsmentioning

confidence: 99%

“…Microporous-mesoporous (MMP) carbon powder (C(Mo 2 C)) was synthesized at the fixed temperature (750 °C) from molybdenum carbide using high-temperature chlorination technique and then cleaned with hydrogen (800° C, 4h) and argon (15)(16)(17)(18)(20)(21)(22)(23). The carbon powder prepared has high Brunauer-Emmett-Teller surface area (S BET ) of 2070 m 2 g -1 and microporous-mesoporous hierarchical structure.…”

Section: Synthesis Of Catalyst For Oxygen Reduction Reactionmentioning

confidence: 99%

“…In our previous papers (15)(16)(17)(18) the contribution of carbon support on the ORR reaction in alkaline media has been investigated. In this paper, we focus on the influence of Co-N or Fe-N nanoclusters, deposited onto the very well defined carbon support with the catalytically active centres, on the ORR rate.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Oxygen Electrocatalysis on High-Surface Area Non-Pt Metal Modified Carbon Catalysts

et al. 2015

View full text Add to dashboard Cite

Series of carbon supported non-noble d-metal Fe or d-metalnitrogen (Fe-N-or Co-N-) nanocluster activated electrocatalysts have been synthesized by sodium borohydride reduction method. Synthesized d-metal-nitrogen carbon catalysts were studied using X-ray diffraction, scanning electron microscopy, time of flight secondary ion mass-spectrometry and Raman spectroscopy methods. The electrochemical parameters of synthesized catalysts were investigated in alkaline media using cyclic voltammetry and rotating disk electrode methods. The high catalytic activity toward oxygen electroreduction reaction was demonstrated and found to be increasing in the following order: Fe-Vulcan; Co-N-Vulcan; Co-N-C(Mo 2 C); Fe-N-C(Mo 2 C). The possibility to replace the Pt metal catalyst with non-noble metal-nitrogen carbon electrocatalyst has been discussed.

show abstract

Section: Catalytic Activity Test Using Rde and CV Methodsmentioning

confidence: 99%

Section: Catalytic Activity Test Using Rde and CV Methodsmentioning

confidence: 99%

Section: Synthesis Of Catalyst For Oxygen Reduction Reactionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Oxygen Electrocatalysis on High-Surface Area Non-Pt Metal Modified Carbon Catalysts

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Carbon-based supports like carbon black, graphene materials, carbide-derived carbon, carbon nanotubes and carbon nanofibers are most commonly used for this purpose. [20][21][22][23][24][25][26][27][28] Multiwalled carbon nanotubes (MWCNT) have some outstanding properties such as high surface area, remarkable electrical conductivity, high chemical stability, and mechanical strength, which make them a promising support material for PtNPs. [29][30][31][32][33][34] Pt/MWCNT has recently been prepared through chemical procedure using a mixture of chloroplatinic acid, polyvinylpyrrolidone and ethylene glycol.…”

mentioning

confidence: 99%

Platinum Particles Electrochemically Deposited on Multiwalled Carbon Nanotubes for Oxygen Reduction Reaction in Acid Media

Hussain

Erikson

Kongi

et al. 2017

J. Electrochem. Soc.

View full text Add to dashboard Cite

Platinum nanoparticles supported on multiwalled carbon nanotubes (Pt/MWCNT) were prepared using controlled electrochemical deposition from Ar-saturated H 2 PtCl 6 solution. The electrodeposition parameters were varied to observe change in the surface morphology and electrocatalytic activity of the Pt/MWCNT catalysts for oxygen reduction reaction (ORR). Surface morphology of the prepared catalysts was studied by scanning electron microscope (SEM) and scanning transmission electron microscope (STEM). For electrochemical characterization of the Pt/MWCNT electrocatalysts, CO-stripping and cyclic voltammetry (CV) experiments were performed in 0.05 M H 2 SO 4 solution. The ORR was studied in acid medium using the rotating disk electrode (RDE) method. The results obtained were analyzed and compared to those of commercial Pt/C. The size, shape and distribution of Pt particles as well as the electrochemical behavior of Pt/MWCNT modified electrodes showed strong dependence on the deposition parameters. The catalyst materials prepared by electrochemical deposition showed higher specific activities than commercial Pt/C catalyst. The Pt/MWCNT cathode materials showed remarkable stability during repetitive potential cycling in 0. Proton exchange membrane fuel cell (PEMFC) is identified as one of the most promising environmentally friendly sustainable energy conversion devices that efficiently convert fuel energy into electricity through electrochemical processes. [1][2][3] In comparison to the conventional internal combustion engine, low-temperature fuel cells are preferred for energy conversion in vehicles because of its green operating system, high efficiency and renewable energy resources.4,5 One of the most critical challenges for commercializing fuel cells is the development of more efficient, highly active and durable electrocatalysts to improve the sluggish kinetics of the oxygen reduction reaction (ORR). To date, Pt-based cathode catalysts have shown significantly high electrocatalytic activity toward the ORR as compared to other metals, alloys, core-shell structures, mixed metal oxides and nonnoble metal catalysts.6-15 Considerable efforts have been dedicated to minimize the amount of Pt loading and improve its electrocatalytic activity and durability, mainly because of its scarcity and high cost. [16][17][18][19]

show abstract

Oxygen Reduction at Shape‐Controlled Platinum Nanoparticles and Composite Catalysts Based on (100)Pt Nanocubes on Microporous–Mesoporous Carbon Supports

et al. 2015

View full text Add to dashboard Cite

The electrochemical oxygen reduction reaction (ORR) on bare (100)Pt nanoparticles supported by molybdenum‐carbide‐derived carbon [(100)Pt–C(Mo2C)] with high specific surface area and controlled microporosity–mesoporosity, pore size distribution, electrical conductivity, and corrosion stability was studied in 0.5 M H2SO4 solution by using rotating‐disk‐electrode and cyclic voltammetry methods. The C(Mo2C) powder was prepared from Mo2C at a fixed chlorination temperature (750 °C). Pt nanoparticles were prepared through colloid chemistry and deposited onto/into C(Mo2C) and Vulcan XC72 carbon supports for comparison. The ORR cathodic current densities and half‐wave potentials strongly depend on the characteristics of the carbon material used as the support. High values for the ORR current density were calculated for (100)Pt–C(Mo2C) and the half‐wave potential is nearly 80 mV more positive compared with that for the (100)Pt–Vulcan XC72 catalyst with a similar catalyst loading.

show abstract

Investigation of a Carbon-Supported Pt Electrode for Oxygen Reduction Reaction in 0.1M KOH Aqueous Solution

Cited by 32 publications

References 31 publications

Oxygen Electrocatalysis on High-Surface Area Non-Pt Metal Modified Carbon Catalysts

Oxygen Electrocatalysis on High-Surface Area Non-Pt Metal Modified Carbon Catalysts

Platinum Particles Electrochemically Deposited on Multiwalled Carbon Nanotubes for Oxygen Reduction Reaction in Acid Media

Oxygen Reduction at Shape‐Controlled Platinum Nanoparticles and Composite Catalysts Based on (100)Pt Nanocubes on Microporous–Mesoporous Carbon Supports

Contact Info

Product

Resources

About