Hydrothermal stability of mesoporous Ni-doped γ-Al2O3

被引：14

作者：

Nagano, Takayuki ^{[1
]}

Sato, Koji ^{[1
]}

Saitoh, Tomohiro ^{[2
]}

Takahashi, Seiji ^{[1
]}

机构：

[1] Japan Fine Ceram Ctr, Mat Res & Dev Lab, Environm Mat Dept, Atsuta Ku, Nagoya, Aichi 4568587, Japan

[2] Japan Fine Ceram Ctr, Nanostruct Res Lab, Nanoscopy & Simulat Dept, Atsuta Ku, Nagoya, Aichi 4568587, Japan

来源：

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 2009年 / 117卷 / 1367期

关键词：

Sol-gel; Mesoporous membrane; Hydrothermal stability; Gas permeance; Pore size distribution; HIGH-TEMPERATURE; AMORPHOUS SILICA; MEMBRANES; ALUMINA; METHANE; STEAM; SOL;

D O I：

10.2109/jcersj2.117.832

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ni-doped gamma-Al2O3 with different molar compositions has been synthesized on alpha-Al2O3 porous supports by the sol-gel method using nitrate-alkoxide precursors. The increasing of lattice constants by Ni doping showed the formation of uniform solid solution. When the Ni content increased up to 10 mol%, NiO phase was formed. The relationship between molar compositions and hydrothermal stability under atmosphere of stearn/N-2 = 3 at 773 K for 0-50 h was compared. The pore size distribution of 5 mol% Ni-doped gamma-Al2O3 on alpha-Al2O3 porous support was stable even after hydrothermal exposure at 773 K for 50 h. (C) 2009 The Ceramic Society of Japan. All rights reserved.

引用

页码：832 / 835

页数：4

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