Effects of the precursors on the performance of Pt/C nano-catalysts

Chun Yu Du; Peng Fei Shi; Ge Ping Yin

Effects of the precursors on the performance of Pt/C nano-catalysts

Chun Yu Du^*
, Peng Fei Shi
, Ge Ping Yin

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Harbin Institute of Technology

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

Abstract

Two kinds of Pt/C catalysts: Pt/C-Pt(NH₃)₂(NO₂)₂ and Pt/C-Pt(NH₃)₄Cl₂ for polymer electrolyte fuel cells were prepared by the impregnation method with Pt(NH₃)₂ (NO₂)₂ and Pt(NH₃)₄Cl₂ as precursors, respectively. HRSEM, XRD, cyclic voltammetry (CV) and rotating disk electrode (RDE) analyses were used to investigate the effects of the precursors on morphology, structure and electrochemical performance of the catalysts. The agglomeration and low performance of Pt particles were observed for Pt/C-Pt(NH₃)₄Cl₂. In contrast, enhanced dispersion of Pt clusters and high electrochemical activity for Pt/C-Pt(NH₃)₂(NO₂)₂ were obtained, which indicated Pt (NH₃)₂(NO₂)₂ was a better precursor. Results also revealed that for Pt/C-Pt(NH₃)₂(NO₂)₂, the activity enhancement to CO oxidation and O₂ reduction reactions resulted from the increase of specific area of Pt clusters, while to methanol oxidation, was mainly due to high percentage of Pt (110) in the surface.

Original language	English
Pages (from-to)	1955-1958+1962
Journal	Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology
Volume	38
Issue number	11
State	Published - Nov 2006

Keywords

Catalyst
Fuel cell
Impregnation method
Precursors

Cite this

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title = "Effects of the precursors on the performance of Pt/C nano-catalysts",

abstract = "Two kinds of Pt/C catalysts: Pt/C-Pt(NH3)2(NO2)2 and Pt/C-Pt(NH3)4Cl2 for polymer electrolyte fuel cells were prepared by the impregnation method with Pt(NH3)2 (NO2)2 and Pt(NH3)4Cl2 as precursors, respectively. HRSEM, XRD, cyclic voltammetry (CV) and rotating disk electrode (RDE) analyses were used to investigate the effects of the precursors on morphology, structure and electrochemical performance of the catalysts. The agglomeration and low performance of Pt particles were observed for Pt/C-Pt(NH3)4Cl2. In contrast, enhanced dispersion of Pt clusters and high electrochemical activity for Pt/C-Pt(NH3)2(NO2)2 were obtained, which indicated Pt (NH3)2(NO2)2 was a better precursor. Results also revealed that for Pt/C-Pt(NH3)2(NO2)2, the activity enhancement to CO oxidation and O2 reduction reactions resulted from the increase of specific area of Pt clusters, while to methanol oxidation, was mainly due to high percentage of Pt (110) in the surface.",

keywords = "Catalyst, Fuel cell, Impregnation method, Precursors",

author = "Du, \{Chun Yu\} and Shi, \{Peng Fei\} and Yin, \{Ge Ping\}",

year = "2006",

month = nov,

language = "英语",

volume = "38",

pages = "1955--1958+1962",

journal = "Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology",

issn = "0367-6234",

publisher = "Harbin Institute of Technology",

number = "11",

}

TY - JOUR

T1 - Effects of the precursors on the performance of Pt/C nano-catalysts

AU - Du, Chun Yu

AU - Shi, Peng Fei

AU - Yin, Ge Ping

PY - 2006/11

Y1 - 2006/11

N2 - Two kinds of Pt/C catalysts: Pt/C-Pt(NH3)2(NO2)2 and Pt/C-Pt(NH3)4Cl2 for polymer electrolyte fuel cells were prepared by the impregnation method with Pt(NH3)2 (NO2)2 and Pt(NH3)4Cl2 as precursors, respectively. HRSEM, XRD, cyclic voltammetry (CV) and rotating disk electrode (RDE) analyses were used to investigate the effects of the precursors on morphology, structure and electrochemical performance of the catalysts. The agglomeration and low performance of Pt particles were observed for Pt/C-Pt(NH3)4Cl2. In contrast, enhanced dispersion of Pt clusters and high electrochemical activity for Pt/C-Pt(NH3)2(NO2)2 were obtained, which indicated Pt (NH3)2(NO2)2 was a better precursor. Results also revealed that for Pt/C-Pt(NH3)2(NO2)2, the activity enhancement to CO oxidation and O2 reduction reactions resulted from the increase of specific area of Pt clusters, while to methanol oxidation, was mainly due to high percentage of Pt (110) in the surface.

AB - Two kinds of Pt/C catalysts: Pt/C-Pt(NH3)2(NO2)2 and Pt/C-Pt(NH3)4Cl2 for polymer electrolyte fuel cells were prepared by the impregnation method with Pt(NH3)2 (NO2)2 and Pt(NH3)4Cl2 as precursors, respectively. HRSEM, XRD, cyclic voltammetry (CV) and rotating disk electrode (RDE) analyses were used to investigate the effects of the precursors on morphology, structure and electrochemical performance of the catalysts. The agglomeration and low performance of Pt particles were observed for Pt/C-Pt(NH3)4Cl2. In contrast, enhanced dispersion of Pt clusters and high electrochemical activity for Pt/C-Pt(NH3)2(NO2)2 were obtained, which indicated Pt (NH3)2(NO2)2 was a better precursor. Results also revealed that for Pt/C-Pt(NH3)2(NO2)2, the activity enhancement to CO oxidation and O2 reduction reactions resulted from the increase of specific area of Pt clusters, while to methanol oxidation, was mainly due to high percentage of Pt (110) in the surface.

KW - Catalyst

KW - Fuel cell

KW - Impregnation method

KW - Precursors

UR - https://www.scopus.com/pages/publications/33846815333

M3 - 文章

AN - SCOPUS:33846815333

SN - 0367-6234

VL - 38

SP - 1955-1958+1962

JO - Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology

JF - Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology

IS - 11

ER -

Effects of the precursors on the performance of Pt/C nano-catalysts

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Keywords

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