II International Symposium on Carbon for Catalysis ABSTRACTS

PP-I-26
contain at first. Non-oxidative methods of “anchor” groups for Pt-ions introduction that are
especially applicable for CNM with graphite-like structure also are developed.
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80
1
2
3
4
5
Mass, %
60
40
20
0
200 300 400 500 600 700 800 900
Temperature, o C
Fig. 1. TG curves for carbon nanomaterials: 1 – AC, 2 – SWNT, 3 – CNF, 4 – MWNT,
5 – graphite.
Platinum fixation onto “anchor” groups that by both IR- and thermogravimetry data are
carboxylic, quinoid and hydroxylic are produced from H 2 PtCl 6 at addition of base that does
not converts PtCl 2- 6 into Pt(OH) 2- 6 , which have complexes that in water are poor soluble.
The following Pt-containing CNF reduction by НСОО - -ions allows to obtain Pt(0)
nanoclusters supported onto CNM with dimensions 5-8 nm determined by both TEM (fig. 2)
and X-ray diffraction data that are not separated at ultrasonic machining. Pt(0) clusters
obtained by electrodeposition or without “anchor” groups introduction are significantly bigger
and not fixing.
a b c
Fig. 2. ТEM images of 12 % Pt/CNM: а - SWNT, b - MWNT, c - CNF.
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