Pt-based alloy nanoparticles embedded electrospun porous carbon nanofibers as electrocatalysts for Methanol oxidation reaction

Mingjin Du; Binling Chen; Yong Hu; Jianyi Chen; Jun Nie; Guiping Ma

doi:10.1016/j.jallcom.2018.03.003

Pt-based alloy nanoparticles embedded electrospun porous carbon nanofibers as electrocatalysts for Methanol oxidation reaction

Mingjin Du, Binling Chen, Yong Hu, Jianyi Chen, Jun Nie, Guiping Ma^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

Pt-based alloy nanoparticles/porous-structured nanofibers nanocomposites, Pt-Ni/pCNFs and Pt-Ag-Ni/pCNFs, were successfully prepared via electrospinning, dip-molding, carbonization and replacement reaction as electrocatalysts for methanol oxidation reaction (MOR). The alloy nanoparticles with average diameter of 180 nm were uniformly embedded on the surface of pCNFs. Taking advantages of the three factors alloy system and porous nanofiber structure, Pt-Ag-Ni/pCNFs catalyst exhibits the higher electrocatalytic activity for methanol (the maximum current density is ca. 19.6 mA cm⁻²) than that of Pt-Ni/pCNFs. In addition, Pt-Ag-Ni/pCNFs also shows an excellent electrocatalytic stability of methanol and superior sensitivity for methanol (0.0022 mA cm^-2 mM^-1). A proposed mechanism of Pt-Ag-Ni/pCNFs for MOR was proposed in the research. This research could provide a novel strategy for the preparation of MOR electrocatalysts.

Original language	English
Pages (from-to)	978-988
Number of pages	11
Journal	Journal of Alloys and Compounds
Volume	747
DOIs	https://doi.org/10.1016/j.jallcom.2018.03.003
Publication status	Published - 30 May 2018
Externally published	Yes

Keywords

Direct methanol fuel cell
Electrochemistry
Electrospinning
Porous carbon nanofibers
Pt based catalyst

Access to Document

10.1016/j.jallcom.2018.03.003

Cite this

Du, M., Chen, B., Hu, Y., Chen, J., Nie, J., & Ma, G. (2018). Pt-based alloy nanoparticles embedded electrospun porous carbon nanofibers as electrocatalysts for Methanol oxidation reaction. Journal of Alloys and Compounds, 747, 978-988. https://doi.org/10.1016/j.jallcom.2018.03.003

@article{11ce0fce484b486996ad5c1cbfcc1b6a,

title = "Pt-based alloy nanoparticles embedded electrospun porous carbon nanofibers as electrocatalysts for Methanol oxidation reaction",

abstract = "Pt-based alloy nanoparticles/porous-structured nanofibers nanocomposites, Pt-Ni/pCNFs and Pt-Ag-Ni/pCNFs, were successfully prepared via electrospinning, dip-molding, carbonization and replacement reaction as electrocatalysts for methanol oxidation reaction (MOR). The alloy nanoparticles with average diameter of 180 nm were uniformly embedded on the surface of pCNFs. Taking advantages of the three factors alloy system and porous nanofiber structure, Pt-Ag-Ni/pCNFs catalyst exhibits the higher electrocatalytic activity for methanol (the maximum current density is ca. 19.6 mA cm−2) than that of Pt-Ni/pCNFs. In addition, Pt-Ag-Ni/pCNFs also shows an excellent electrocatalytic stability of methanol and superior sensitivity for methanol (0.0022 mA cm-2 mM-1). A proposed mechanism of Pt-Ag-Ni/pCNFs for MOR was proposed in the research. This research could provide a novel strategy for the preparation of MOR electrocatalysts.",

keywords = "Direct methanol fuel cell, Electrochemistry, Electrospinning, Porous carbon nanofibers, Pt based catalyst",

author = "Mingjin Du and Binling Chen and Yong Hu and Jianyi Chen and Jun Nie and Guiping Ma",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = may,

day = "30",

doi = "10.1016/j.jallcom.2018.03.003",

language = "English",

volume = "747",

pages = "978--988",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Pt-based alloy nanoparticles embedded electrospun porous carbon nanofibers as electrocatalysts for Methanol oxidation reaction

AU - Du, Mingjin

AU - Chen, Binling

AU - Hu, Yong

AU - Chen, Jianyi

AU - Nie, Jun

AU - Ma, Guiping

PY - 2018/5/30

Y1 - 2018/5/30

N2 - Pt-based alloy nanoparticles/porous-structured nanofibers nanocomposites, Pt-Ni/pCNFs and Pt-Ag-Ni/pCNFs, were successfully prepared via electrospinning, dip-molding, carbonization and replacement reaction as electrocatalysts for methanol oxidation reaction (MOR). The alloy nanoparticles with average diameter of 180 nm were uniformly embedded on the surface of pCNFs. Taking advantages of the three factors alloy system and porous nanofiber structure, Pt-Ag-Ni/pCNFs catalyst exhibits the higher electrocatalytic activity for methanol (the maximum current density is ca. 19.6 mA cm−2) than that of Pt-Ni/pCNFs. In addition, Pt-Ag-Ni/pCNFs also shows an excellent electrocatalytic stability of methanol and superior sensitivity for methanol (0.0022 mA cm-2 mM-1). A proposed mechanism of Pt-Ag-Ni/pCNFs for MOR was proposed in the research. This research could provide a novel strategy for the preparation of MOR electrocatalysts.

AB - Pt-based alloy nanoparticles/porous-structured nanofibers nanocomposites, Pt-Ni/pCNFs and Pt-Ag-Ni/pCNFs, were successfully prepared via electrospinning, dip-molding, carbonization and replacement reaction as electrocatalysts for methanol oxidation reaction (MOR). The alloy nanoparticles with average diameter of 180 nm were uniformly embedded on the surface of pCNFs. Taking advantages of the three factors alloy system and porous nanofiber structure, Pt-Ag-Ni/pCNFs catalyst exhibits the higher electrocatalytic activity for methanol (the maximum current density is ca. 19.6 mA cm−2) than that of Pt-Ni/pCNFs. In addition, Pt-Ag-Ni/pCNFs also shows an excellent electrocatalytic stability of methanol and superior sensitivity for methanol (0.0022 mA cm-2 mM-1). A proposed mechanism of Pt-Ag-Ni/pCNFs for MOR was proposed in the research. This research could provide a novel strategy for the preparation of MOR electrocatalysts.

KW - Direct methanol fuel cell

KW - Electrochemistry

KW - Electrospinning

KW - Porous carbon nanofibers

KW - Pt based catalyst

UR - http://www.scopus.com/inward/record.url?scp=85043490985&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2018.03.003

DO - 10.1016/j.jallcom.2018.03.003

M3 - Article

AN - SCOPUS:85043490985

SN - 0925-8388

VL - 747

SP - 978

EP - 988

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Pt-based alloy nanoparticles embedded electrospun porous carbon nanofibers as electrocatalysts for Methanol oxidation reaction

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this