Nitric acid modified Mesoporous carbon (CMK-3) supported Pt particles have been prepared by chemical reduction with NaBH4 as a reducing agent. Energy dispersive spectrometer shows that the catalysts have some oxygenic functional groups. The activity of the composite catalysts for methanol electro-oxidation was investigated by using cyclic votammogram and chronoamperometry in acid media. The results indicated that modified mesoporous carbon can improve the catalytic ability of Pt catalyst for methanol electro-oxidation and antipoison capability for CO. The composite electrode modified by 0.23 g nitric acid has the highest electrochemical ability.

Issue Section:
Research Paper
Keywords:
modified mesoporous carbon, methanol, Pt, CO striping
Topics:
Carbon, Catalysts, Methanol, Platinum catalysts, Oxidation, Direct methanol fuel cells

References

1.
Tsiouvaras
,
N.
,
Martínez-Huerta
,
M.
,
Moliner
,
R.
,
Lázaro
,
M.
,
Rodríguez
,
J.
,
Pastor
,
E.
,
Peña
,
M.
, and
Fierro
,
J.
,
2009
, “
CO Tolerant PtRu–MoOx Nanoparticles Supported on Carbon Nanofibers for Direct Methanol Fuel Cells
”
J. Power Sources
,
186
(
2
), pp.
299
–
304
.10.1016/j.jpowsour.2008.10.026
Google Scholar
Crossref
Search ADS
 
2.
Hull
,
R. V.
,
Li
,
L.
,
Xing
,
Y.
, and
Chusuei
,
C. C.
,
2006
, “
Pt Nanoparticle Binding on Functionalized Multiwalled Carbon Nanotubes
,”
Chem. Mater
,
18
(
7
), pp.
1780
–
1788
.10.1021/cm0518978
Google Scholar
Crossref
Search ADS
 
3.
Calvillo
,
L.
,
Lazaro
,
M.
,
Garcia-Bordeje
,
E.
,
Moliner
,
R.
,
Cabot
,
P.
,
Esparbe
,
I.
,
Pastor
,
E.
, and
Quintana
,
J.
,
2007
, “
Platinum Supported on Functionalized Ordered Mesoporous Carbon as Electrocatalyst for Direct Methanol Fuel Cells
,”
J. Power Sources
,
169
(
1
), pp.
59
–
64
.10.1016/j.jpowsour.2007.01.042
Google Scholar
Crossref
Search ADS
 
4.
Zhao
,
D.
,
Feng
,
J.
,
Huo
,
Q.
,
Melosh
,
N.
,
Fredrickson
,
G. H.
,
Chmelka
,
B. F.
, and
Stucky
,
G., D.
,
1998
, “
Triblock Copolymer Syntheses of Mesoporous Silica With Periodic 50 to 300 Angstrom Pores
,”
Science
,
279
(
5350
), pp.
548
–
552
.10.1126/science.279.5350.548
Google Scholar
Crossref
Search ADS
PubMed
 
5.
Sirk
,
A. H.
,
Hill
,
J. M.
,
Kung
,
S. K.
, and
Birss
,
V. I.
,
2004
, “
Effect of Redox State of PtRu Electrocatalysts on Methanol Oxidation Activity
,”
J. Phys. Chem. B.
,
108
(
2
), pp.
689
–
695
.10.1021/jp036602x
Google Scholar
Crossref
Search ADS
 
6.
Liu
,
Z.
,
Ling
,
X. Y.
,
Su
,
X.
, and
Lee
,
J. Y.
,
2004
, “
Carbon-Supported Pt and PtRu Nanoparticles as Catalysts for a Direct Methanol Fuel Cell
,”
J. Phys. Chem. B
,
108
(
24
), pp.
8234
–
8240
.10.1021/jp049422b
Google Scholar
Crossref
Search ADS
 
7.
Verde
,
Y.
,
Alonso-Nuñez
,
G.
,
Miki-Yoshida
,
M.
,
Jose-Yacaman
,
M.
,
Ramos
,
V. H.
, and
Keer
,
A.
,
2005
, “
Active Area and Particle Size of Pt Particles Synthesized From (NH4)2PtCl6 on a Carbon Support
,”
Catal. Today
,
107
, pp.
826
–
830
.10.1016/j.cattod.2005.07.016
Google Scholar
Crossref
Search ADS
 
8.
Takasu
,
Y.
,
Fujiwara
,
T.
,
Murakami
,
Y.
,
Sasaki
,
K.
,
Oguri
,
M.
,
Asaki
,
T.
, and
Sugimoto
,
W.
,
2000
, “
Effect of Structure of Carbon-Supported PtRu Electrocatalysts on the Electrochemical Oxidation of Methanol
,”
J. Electrochem. Soc.
,
147
(
12
), pp.
4421
–
4427
.10.1149/1.1394080
Google Scholar
Crossref
Search ADS
 
Copyright © 2013 by ASME
You do not currently have access to this content.