FeOx-pillared clays (FeOx-pillared bentonite, FeOx-pillared hectorite and FeOx-pillared taeniolite) were synthesized by the intercalation of FeCl3 into clay interlayers and calcination. The synthesized catalysts were exploited for conversion of ep...
X-ray absorption fine structure (XAFS) and high angle annular dark field scanning transmission electron microscopy (HAADF STEM) were both applied to a characterization of the size regulated Ni nanocluster catalyst on alumina. XAFS analysis showed ...
R. Rodiansono   Takayoshi Hara   Nobuyuki Ichikuni   Shogo Shimazu   
Bulletin of Chemical Reaction Engineering and Catalysis 9(1) 53-59 2014年
A very simple synthetic procedure was developed for the preparation of Ni-Sn alloy catalysts that were uti-lised for chemoselective hydrogenation of furfural, producing furfuryl alcohol almost exclusively. The mix-ture of nickel nanoparticles supp...
Mo oxide species were prepared on oxide supports and applied for selective photo-oxidation of propane. Mo oxide on mesoporous alumina had a monomeric structure whereas that on mesoporous silica had an oligomeric structure. The main product of the ...
SEPARATION AND PURIFICATION TECHNOLOGY 48(2) 197-201 2006年3月
Mesoporous molecular sieves are promising as adsorbents for purification of biological molecules, such as arm no acids, due to their tuneable mesopore sizes and high surface area. In this study, the adsorption of the basic amino acid, lysine, onto...
Y Permana   S Shimazu   N Ichikuni   T Uematsu   
CATALYSIS COMMUNICATIONS 6(6) 426-430 2005年6月
Two series of zirconium beta-diketonates: tris(benzoylacetonato)zirconium (IV) perchlorate (3b) and tris(dibenzoylmethanato)zirconium (IV) perchlorate (3c) were synthesized. The complexes were synthesized by a reaction of zirconium tetrachloride w...
Alumina supported gold catalyst prepared by spray reaction method (spr) provides gold particles with about 20nm diameter. The gold particle size is larger than for conventional gold catalysts. However, the spr catalyst shows catalytic activity for...
N. Ichikuni   H. Hachiya   K. K. Bando   S. Shimazu   T. Uematsu   
Physica Scripta T T115 807-809 2005年
Mesoporous silica supported Nb catalyst (imp Nb/SBA-3) was prepared by impregnation of NbCl5 to the SBA-3 support. The mesoporous silicate-wall incorporated Nb catalyst (inc Nb-SBA-3) was synthesized by introducing NbCl5 into an SBA-3 precursor so...
H. Murayama   N. Ichikuni   K. K. Bando   S. Shimazu   T. Uematsu   
Physica Scripta T T115 825-827 2005年
Silica supported molybdenum oxide catalysts were prepared from Mo dimer complex (Mo2(CH3CO2)4) by using photochemical anchoring (PCA) method. The local environments of Mo atoms on both attached and oxidized catalysts were investigated by Mo K-edge...