文档介绍：Literature source
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第一页，共20页。
Contents
Introduction
1
2
Experimental section
1
Conclusions
2
3
4
Results and discussion
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1. Introduction
The shortage of traditional energy resources and serious environmental
pollution due to combustion emissions have resulted in a number of scientific
studies on the development of sustainable and clean energy, including fuel cells.
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1. Introduction
Methanol oxidation in a direct methanol fuel cell (DMFC) can generate electrochemical energy.
DMFC’S working principle:
Cathode Polymer Anode
membrane
CO2
H2O
H2O
CO2
H2O
O2
H+：
CH3OH
e-
e-
Loading
e-
Cathode
catalyst
Anode
catalyst
Waste heat
Anode： CH3OH + H2O CO2 + 6H+
+ 6e- φ0=
Cathode：3/2 O2 + 6H+ + 6e- 3H2O φ0=
CH3OH + 3/2 O2 CO2 + 2H2O
E0=
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This oxidation usually needs a catalyst to lower the reaction barrier to make the process efficient. So far, platinum (Pt) is the most efficient catalyst in the field. Scarcity of Pt, which causes its high cost, inevitably impedes the active development of both scientific research and practical utilization.
The utilization of single-component Pt in DMFCs suffers from serious carbon monoxide (CO) poisoning. CO, one of the main intermediate molecules, can easily stain Pt atoms, which deteriorates their catalytic activity.
The article thought：
In this study, we achieved higher catalytic activity for methanol oxidation using the perpendicular bimetallic Pt/Pd NT array as a catalyst. The investigation of the catalytic properties of bimetallic materials paves a way to substituting expensive Pt with cost-competitive materials in the future.
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Experimental section
2
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2. Experimental section
5 mM PdCl2
5 mM H2PtCl6
40 mM HCl
used for deposition
The lengths o