Surface and structural properties of novel titanium phosphates

被引:37
作者
Bereznitski, Y
Jaroniec, M
Bortun, AI
Poojary, DM
Clearfield, A
机构
[1] KENT STATE UNIV,DEPT CHEM,SEPARAT & SURFACE SCI CTR,KENT,OH 44242
[2] TEXAS A&M UNIV,DEPT CHEM,COLLEGE STN,TX 77843
关键词
titanium phosphates; nitrogen adsorption; surface heterogeneity; thermogravimetry; P-31 solid-state NMR; x-ray powder diffraction;
D O I
10.1006/jcis.1997.4928
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Two novel fibrous framework titanium phosphates having a similar formula, Ti2O(PO4)(2) . H2O, and a layered titanium phosphate, Ti2O3(H2PO4)(2) . 2(H)2, were synthesized and their properties were characterized with physicochemical methods, such as elemental analysis, thermogravimetry, nitrogen adsorption, X-ray diffraction, and P-31 solid-state NMR. Nitrogen adsorption isotherms were measured on synthesized titanium phosphates in order to characterize their surface and structural properties. The specific surface area and total pore volume of the titanium phosphates studied were determined, The low-pressure nitrogen adsorption isotherms were used to evaluate surface heterogeneity of the synthesized materials by employing an advanced numerical procedure based on the regularization method. (C) 1997 Academic Press.
引用
收藏
页码:442 / 448
页数:7
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