Phosphate photocatalyst comprising metal ion in d 10 or d 0...

Details Phosphate photocatalyst comprising metal ion in d 10 or d 0... Phosphate photocatalyst comprising metal ion in d 10 or d 0...

2006-03-21

2006-03-21

Lorengo, J. A. (Department: 1755)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Phosphorus or compound containing same

C502S210000, C502S213000, C502S330000, C502S353000

Reexamination Certificate

active

07015172

ABSTRACT:
A photo-catalyst comprising a compound having structure composing a network formed by mutual connection of an unit constructing oxygen octahedra or tetrahedra containing a transition metal ion or a typical metallic ion in d10or d0configuration and an unit constructing PO4tetrahedron connected to said oxygen octahedra or tetrahedra, further containing an alkali metal besides said metallic ion as a consituent element, for example,AXNb2mP4O6m+8(wherein A is Na, K or Li, X is 2, 3 or 4 and m is 3, 3.5 or 4)AXTa2mP4O6m+8(wherein A is Na, K or Li, X is 2, 3 or 4 and m is 3, 3.5 or 4)AXIn2mP4O6m+8(wherein A is Na, K or Li, X is 2, 3 or 4 and m is 3, 3.5 or 4)and RuO2is loaded on the compound. The photo-catalyst can be used for the complete decomposition of water.

REFERENCES:
patent: 6368668 (2002-04-01), Kobayashi et al.
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Norihiro Tanaka, “PO4 Shimentai o Fukumu Tunel Kozo Kagobutst ni yoru Tikari Bunkai Hanno”, Dai 88 Kai Shokubai Toronkai Toronkai A Yokoshu (Sep. 20, 2001), Dai 88 Kai, p. 177.
J. Sato et al., “New Photocatalyst Group for Water Decomposition of RuO2-Loaded p-Block Metal (In, Sn, and Sb) Oxides with d10 Configuration,”, Journal of Physical Chemistry B, vol. 105, No. 26, Jul. 5, 2001, pp. 6010-6063.

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