Graphene nanomaterials supported palladium nanoparticles as nanocatalysts for electro-oxidation of methanol

Zhongping Li; Minna Ruan; Liqing Du; Guangming Wen; Chuan Dong; Hung Wing Li

doi:10.1016/j.jelechem.2017.10.015

Graphene nanomaterials supported palladium nanoparticles as nanocatalysts for electro-oxidation of methanol

Zhongping Li^*, Minna Ruan, Liqing Du, Guangming Wen, Chuan Dong, Hung Wing Li

^*Corresponding author for this work

Department of Chemistry

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

14 Citations (Scopus)

Abstract

We herein report a facile hydrothermal approach to prepare well-dispersed nitrogen-doped graphene quantum dots-supported Pd (N-GQDs/Pd) nanocomposites of a narrow size distribution with diameter of 4.8 ± 0.2 nm. The N-GQDs/Pd nanocomposite demonstrates an excellent electrocatalytic activity for the methanol oxidation reaction in an alkaline medium when compared with the graphene sheets-supported Pd nanocomposites (GS/Pd), graphene quantum dots supported Pd nanocomposites (GQDs/Pd) and commercial palladium catalyst (Pd/C). The N-GQDs/Pd of good dispersion and, small and narrow size distribution offers superior electrical conductivity and remarkable cycling stability. In addition, it offers promising and attractive practical opportunities for electronic materials which possess high catalytic activity and stability, yet the noble metal usage is reduced. This study demonstrated the potential use of N-GQDs/Pd as new electrocatalytic nanomaterials for direct methanol fuel cells.

Original language	English
Pages (from-to)	47-52
Number of pages	6
Journal	Journal of Electroanalytical Chemistry
Volume	805
DOIs	https://doi.org/10.1016/j.jelechem.2017.10.015
Publication status	Published - 15 Nov 2017

Scopus Subject Areas

Analytical Chemistry
General Chemical Engineering
Electrochemistry

User-Defined Keywords

Methanol
Nitrogen-doped graphene quantum dots(N-GQDs)
Palladium nanoparticles

UN SDGs

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10.1016/j.jelechem.2017.10.015

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@article{c1583241b7b1476080ec27868fc8543f,

title = "Graphene nanomaterials supported palladium nanoparticles as nanocatalysts for electro-oxidation of methanol",

abstract = "We herein report a facile hydrothermal approach to prepare well-dispersed nitrogen-doped graphene quantum dots-supported Pd (N-GQDs/Pd) nanocomposites of a narrow size distribution with diameter of 4.8 ± 0.2 nm. The N-GQDs/Pd nanocomposite demonstrates an excellent electrocatalytic activity for the methanol oxidation reaction in an alkaline medium when compared with the graphene sheets-supported Pd nanocomposites (GS/Pd), graphene quantum dots supported Pd nanocomposites (GQDs/Pd) and commercial palladium catalyst (Pd/C). The N-GQDs/Pd of good dispersion and, small and narrow size distribution offers superior electrical conductivity and remarkable cycling stability. In addition, it offers promising and attractive practical opportunities for electronic materials which possess high catalytic activity and stability, yet the noble metal usage is reduced. This study demonstrated the potential use of N-GQDs/Pd as new electrocatalytic nanomaterials for direct methanol fuel cells.",

keywords = "Methanol, Nitrogen-doped graphene quantum dots(N-GQDs), Palladium nanoparticles",

author = "Zhongping Li and Minna Ruan and Liqing Du and Guangming Wen and Chuan Dong and Li, {Hung Wing}",

note = "Funding Information: This work was financially supported by the National Natural Science Foundation of China ( 21575083 and 21205075 ), Shanxi “Hundred Talent Program” ( 2015 H.W. Li ), and research project supported by Shanxi Scholarship Council of China ( 2013-027 and 2016-8 ). We also thank the financial support of the Hong Kong Baptist University ( FRG2/14-15/057 ). ",

year = "2017",

month = nov,

day = "15",

doi = "10.1016/j.jelechem.2017.10.015",

language = "English",

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pages = "47--52",

journal = "Journal of Electroanalytical Chemistry",

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TY - JOUR

T1 - Graphene nanomaterials supported palladium nanoparticles as nanocatalysts for electro-oxidation of methanol

AU - Li, Zhongping

AU - Ruan, Minna

AU - Du, Liqing

AU - Wen, Guangming

AU - Dong, Chuan

AU - Li, Hung Wing

N1 - Funding Information: This work was financially supported by the National Natural Science Foundation of China ( 21575083 and 21205075 ), Shanxi “Hundred Talent Program” ( 2015 H.W. Li ), and research project supported by Shanxi Scholarship Council of China ( 2013-027 and 2016-8 ). We also thank the financial support of the Hong Kong Baptist University ( FRG2/14-15/057 ).

PY - 2017/11/15

Y1 - 2017/11/15

N2 - We herein report a facile hydrothermal approach to prepare well-dispersed nitrogen-doped graphene quantum dots-supported Pd (N-GQDs/Pd) nanocomposites of a narrow size distribution with diameter of 4.8 ± 0.2 nm. The N-GQDs/Pd nanocomposite demonstrates an excellent electrocatalytic activity for the methanol oxidation reaction in an alkaline medium when compared with the graphene sheets-supported Pd nanocomposites (GS/Pd), graphene quantum dots supported Pd nanocomposites (GQDs/Pd) and commercial palladium catalyst (Pd/C). The N-GQDs/Pd of good dispersion and, small and narrow size distribution offers superior electrical conductivity and remarkable cycling stability. In addition, it offers promising and attractive practical opportunities for electronic materials which possess high catalytic activity and stability, yet the noble metal usage is reduced. This study demonstrated the potential use of N-GQDs/Pd as new electrocatalytic nanomaterials for direct methanol fuel cells.

AB - We herein report a facile hydrothermal approach to prepare well-dispersed nitrogen-doped graphene quantum dots-supported Pd (N-GQDs/Pd) nanocomposites of a narrow size distribution with diameter of 4.8 ± 0.2 nm. The N-GQDs/Pd nanocomposite demonstrates an excellent electrocatalytic activity for the methanol oxidation reaction in an alkaline medium when compared with the graphene sheets-supported Pd nanocomposites (GS/Pd), graphene quantum dots supported Pd nanocomposites (GQDs/Pd) and commercial palladium catalyst (Pd/C). The N-GQDs/Pd of good dispersion and, small and narrow size distribution offers superior electrical conductivity and remarkable cycling stability. In addition, it offers promising and attractive practical opportunities for electronic materials which possess high catalytic activity and stability, yet the noble metal usage is reduced. This study demonstrated the potential use of N-GQDs/Pd as new electrocatalytic nanomaterials for direct methanol fuel cells.

KW - Methanol

KW - Nitrogen-doped graphene quantum dots(N-GQDs)

KW - Palladium nanoparticles

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U2 - 10.1016/j.jelechem.2017.10.015

DO - 10.1016/j.jelechem.2017.10.015

M3 - Journal article

AN - SCOPUS:85043311980

SN - 1572-6657

VL - 805

SP - 47

EP - 52

JO - Journal of Electroanalytical Chemistry

JF - Journal of Electroanalytical Chemistry

ER -

Graphene nanomaterials supported palladium nanoparticles as nanocatalysts for electro-oxidation of methanol

Abstract

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