Hydrothermal stability of mesoporous Ni-doped γ-Al2O3
Hydrothermal stability of mesoporous Ni-doped γ-Al2O3
复制标题
介孔Ni掺杂γ-Al2O3的水热稳定性
DOI：
10.2109/jcersj2.117.832
复制
发表时间：
2009
影响因子：
1.1
通讯作者：
Seiji Takahashi
中科院分区：
文献类型：
--
作者：
T. Nagano;Kōji Sato;T. Saitoh;Seiji Takahashi
以硝酸醇盐为前驱体，采用溶胶-凝胶法在α-Al2O3多孔载体上合成了不同摩尔组成的ni掺杂γ-Al2O3。Ni掺杂后晶格常数增大，表明形成了均匀的固溶体。当Ni含量增加到10 mol%时，形成NiO相。比较了在773 K、蒸汽/N2 = 3气氛下0 ~ 50 h下摩尔组成与水热稳定性的关系。5 mol% ni掺杂的γ-Al2O3在α-Al2O3多孔载体上的孔径分布即使在773 K水热暴露50 h后也保持稳定。
Ni-doped γ-Al2O3 with different molar compositions has been synthesized on α-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 steam/N2 = 3 at 773 K for 0-50 h was compared. The pore size distribution of 5 mol% Ni-doped γ-Al2O3 on α-Al2O3 porous support was stable even after hydrothermal exposure at 773 K for 50 h.
水热稳定溶胶-凝胶衍生La_2O_3掺杂Ga_2O_3-Al_2O_3复合介孔膜的研制
DOI：
--
发表时间：
2005
期刊：
J.Membr.Sci. 247
影响因子：
--
作者：
M.D.H.Zahir;K.Sato;Y.Iwamoto
通讯作者：
Y.Iwamoto