Effect of polydopamine‑modified reduced graphene oxides on the catalytic activity of Pt nanoparticles catalysts for fuel cell electrodes

Joo-Hyoeng Woo (우주형); PARK SOOJIN (박수진); Sungwook Chung (정성욱); Kim Seok (김석)

doi:10.1007/s42823-019-00017-z

Effect of polydopamine‑modified reduced graphene oxides on the catalytic activity of Pt nanoparticles catalysts for fuel cell electrodes

Carbon Letters
Abbr : Carbon Lett.
2019, 29(1), pp.47-55
DOI : 10.1007/s42823-019-00017-z
Publisher : Korean Carbon Society
Research Area : Natural Science > Natural Science General > Other Natural Sciences General
Received : February 1, 2018
Accepted : January 22, 2019
Published : February 1, 2019

Joo-Hyoeng Woo ¹, PARK SOOJIN ², Sungwook Chung ¹, Kim Seok ¹

¹부산대학교
²인하대학교

Accredited

ABSTRACT

We have studied a method to prepare polydopamine-modified reduced graphene oxide-supported Pt nanoparticles (Pt– PDA–RGO). The Pt–PDA–RGO nanocomposites were synthesized by a wet-coating process, which was induced by selfpolymerization of dopamine. As an eco-friendly and versatile adhesive source in nature, dopamine could be easily adhered to surfaces of organic material and inorganic material via polymerization processes and spontaneous adsorption under weak alkaline pH conditions. To apply the unique features of dopamine, we synthesized Pt–PDA–RGO nanocomposites with a different quantity of dopamine, which are expected to preserve the improved Pt adsorption on graphene, resulting in the enhanced electrocatalytic performance. The morphology and micro-structure were examined by field emission scanning electron microscopy, transmission electron microscopy, and Fourier transform infrared spectroscopy. Compared to pristine Pt–deposited RGO (Pt–RGO), Pt–PDA–RGO (30 wt% dopamine against RGO) nanocomposites showed a superior electrochemical active surface area for a methanol oxidation. This could be related to the fact that the optimized content of PDAcoated RGO exhibited a higher electrochemical surface area and better Pt adsorption on the RGO surface.

KEYWORDS

Polydopamine · Reduced graphene oxide · Pt nanoparticles · Methanol oxidation · Direct methanol fuel cells

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This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-28)

Total Citation Counts(KCI+WOS) (11) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (8) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

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Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 6.04

Effect of polydopamine‑modified reduced graphene oxides on the catalytic activity of Pt nanoparticles catalysts for fuel cell electrodes

ABSTRACT

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Citation status

This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-28)

Total Citation Counts(KCI+WOS) (11) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (8) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

* References for papers published after 2023 are currently being built.

Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 6.04

Effect of polydopamine‑modified reduced graphene oxides on the catalytic activity of Pt nanoparticles catalysts for fuel cell electrodes

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KCI Citation Counts (4)

WoS Citation Counts (7) This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-28)

Total Citation Counts(KCI+WOS) (11) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (8) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

REFERENCES (33) * References for papers published after 2023 are currently being built.

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This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-28)

* References for papers published after 2023 are currently being built.