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without any additional step to introduce
other reducing agents (Fig. 4.17) [61]. This composite material
showed good electrocatalytic activity toward reduction of oxygen.
In addition, the results of control experiments confirmed that the
presence of ILs and the small size of gold nanoparticles increase the
electrocatalytic activity of CNTs greatly.
situ reduction of HAuCl
4
(a)
(b)
Figure 4.18
(a) Schematic diagram of the modification of CNTs with PIL
and the preparation of Pt/CNTs-PIL nanohybrids. EG: ethylene glycol, AIBN:
2,2'-azobisisobutyronitrile. (b) Transient current of PtRu/CNTs-PIL, PtRu/
CNTs, Pt/CNTs-PIL, and Pt/CNTs catalysts for methanol electrooxidation
at 0.50 V in nitrogen-saturated 0.5 M H
OH aqueous
solution. From Wu, B. H., Hu, D., Kuang, Y. J., Liu, B., Zhang, X. H., and
Chen, J. H. (2009). Functionalization of carbon nanotubes by an ionic-liquid
polymer: dispersion of Pt and PtRu nanoparticles on carbon nanotubes and
their electrocatalytic oxidation of methanol.
SO
4
+ 1.0 M CH
2
3
,
pp. 4751-4754. Copyright Wiley-VCH Verlag GmbH & Co. KGaA. Reproduced
with permission.
Angew. Chem. Int. Edit.,
48
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