Influence of Carbon Support on Catalytic Layer Performance of Proton Exchange Membrane Fuel Cells

Kuriganova, Alexandra B.; Leontyev, Igor N.; Герасимова, Е. В.; Маслова, О. А.; Rakhmatullin, Aydar; Smirnova, N. V.; Dobrovolsky, Yu. A.

doi:10.1007/s12678-017-0416-4

Cited by 21 publications

(20 citation statements)

References 60 publications

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“…[52] www.advancedsciencenews.com www.entechnol.de supports show a rather asymmetric CO oxidation peak in terms of an overlapping peak at a lower potential, which is reported to appear due to a lowered onset potential of CO oxidation on Pt particle aggregates instead of isolated single particles. [62][63][64] The absence of this asymmetry in CO stripping indicates the absence of Pt aggregates, which is in line with the well-distributed Pt particles seen in Figure 4c. In comparison, Pt/C shows the CO oxidation centered at 0.90 V RHE with a small peak shoulder at the lower potential side.…”

Section: Electrochemical Catalyst Investigationsupporting

confidence: 81%

“…In comparison, Pt/C shows the CO oxidation centered at 0.90 V RHE with a small peak shoulder at the lower potential side. This indicates the presence of Pt aggregates in Pt/C …”

Section: Resultsmentioning

confidence: 88%

“…This indicates the presence of Pt aggregates in Pt/C. [62][63][64] The ECSAs are calculated using Equation (2) with a charge density ρ of 4.2 C m Pt À2 in case of CO adsorption on platinum. While during HUPD the hydrogen atom is adsorbed on one platinum atom, the CO stripping involves two platinum atoms.…”

Section: Electrochemical Catalyst Investigationmentioning

confidence: 99%

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Hydrothermal Carbonization‐Derived Carbon from Waste Biomass as Renewable Pt Support for Fuel Cell Applications: Role of Carbon Activation

et al. 2019

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Pt catalysts in proton exchange membrane fuel cells (PEMFCs) typically use carbon blacks such as Vulcan (Vulcan is a registered trademark of the company Cabot Corporation) based on fossil sources. Thus, an important research task is using sustainable supports in PEMFCs. Hydrothermal carbonization (HTC) converts biomasses into chars, which are possible substitutes for fossil‐based carbons. Herein, a Pt catalyst derived from HTC of coconut shells is developed for catalysis of O2 reduction in acidic media. Thermal activation enlarges the specific surface area by factor of 7 to 546 m2 g−1 and generates electrical conductivity making the material suitable for catalysis. Pt particles of 1.8 ± 0.5 nm are distributed well on the activated carbon. Cyclic and CO stripping voltammetry show an electrochemical surface area (ECSA) of 69 ± 21 m2 gPt−1, almost identical to that of the commercial catalyst using Vulcan (69 ± 6 m2 gPt−1). Although ECSAs are highly comparable, the activity for O2 reduction is lower compared with the commercial catalyst. HTC‐derived carbon has a lower degree of graphitization, less functional oxygen groups on its surface, and a lower electrical conductivity than Vulcan. This suggests different Pt–support interactions.

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Section: Electrochemical Catalyst Investigationsupporting

confidence: 81%

“…In comparison, Pt/C shows the CO oxidation centered at 0.90 V RHE with a small peak shoulder at the lower potential side. This indicates the presence of Pt aggregates in Pt/C …”

Section: Resultsmentioning

confidence: 88%

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Hydrothermal Carbonization‐Derived Carbon from Waste Biomass as Renewable Pt Support for Fuel Cell Applications: Role of Carbon Activation

et al. 2019

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“…Novika et al (Novika, Kuriganova, Leontev et al (2018)) used platinum catalysts on carbon nanotubes and carbon black. Their performance was compared and the maximum power density was achieved for nanotubes.…”

Section: Abstract: Fuel Cell; Carbon Nanotube; Catalyst; Platinum-rutmentioning

confidence: 99%

Electrochemical Performance Improvement of the Catalyst of the Methanol Micro-Fuel Cell Using Carbon Nanotubes

Nasrabadi¹,

Ebrahimi‐Moghadam²,

Ahmadi³

et al. 2019

Preprint

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Due to low working temperature, high energy density and low pollution, proton exchange fuel cells have been investigated under different operating conditions in different applications. Using platinum catalysts in methanol fuel cells leads to increasing the cost of this kind of fuel cell which is considered as a barrier to the commercialism of this technology. For this reason, a lot of efforts have been made to reduce the loading of the catalyst Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted:

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“…Для исследования электрохимических характе-ристик Pt/SnO 2 -C материала в качестве анодного ката-лизатора ТПТЭ готовили «каталитические чернила» и рабочие электроды по методике, представленной в [15]. Влияние диоксида олова на электрокаталити-ческие свойства платиносодержащего катализатора исследовали на примере реакции электрохимическо-го окисления этанола методом циклической вольтам-перометрии.…”

Section: материалы и методы исследованияunclassified

Tin Dioxide-Based Electrode Materials for Electrochemical Applications

Smirnova¹,

Kuriganova²,

Faddeev³

et al. 2017

ФИ (FR)

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Influence of Carbon Support on Catalytic Layer Performance of Proton Exchange Membrane Fuel Cells

Cited by 21 publications

References 60 publications

Hydrothermal Carbonization‐Derived Carbon from Waste Biomass as Renewable Pt Support for Fuel Cell Applications: Role of Carbon Activation

Hydrothermal Carbonization‐Derived Carbon from Waste Biomass as Renewable Pt Support for Fuel Cell Applications: Role of Carbon Activation

Electrochemical Performance Improvement of the Catalyst of the Methanol Micro-Fuel Cell Using Carbon Nanotubes

Tin Dioxide-Based Electrode Materials for Electrochemical Applications

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