Efficient hydrogenation of levulinic acid (LA) into gamma-valerolactone (GVL) in water using highly dispersed Ni-Sn(x)/AlOH (x = Ni/Sn ratio) was studied. Increasing the Sn amount in the Ni-Sn alloy up to 2.14 mmol g(-1) enhanced the yield of GVL,...
R. Rodiansono   Maria Dewi Astuti   Syahrul Khairi   Shogo Shimazu   
Bulletin of Chemical Reaction Engineering and Catalysis 11(1) 1-9 2016年1月 [査読有り]
A highly active and selective hydrogenation of biomass-derived furfural into furfuryl alcohol was achieved using supported single phase Ni3Sn2alloy catalysts. Various supports such as active carbon (AC), γ-Al2O3, Al(OH)3, ZnO, TiO2, ZrO2, MgO, Li-...
The interlayer spacing of layered Ni-Zn mixed basic salts (NiZn) can be precisely controlled by the intercalation of various long alkyl chain carboxylate anions into the NiZn interlayer. The butyrate-exchanged NiZn (C3H7COO-/NiZn) catalyst effecti...
Rodiansono   Maria Dewi Astuti   Uripto Trisno Santoso   Shogo Shimazu   
International Symposium on Applied Chemistry 2015 16 531-539 2015年 [査読有り]
A novel method was applied for the preparation of highly dispersed nickel-tin (Ni-Sn) alloy catalyst supported on aluminium hydroxide using a simple method at a relatively low temperature. The addition of Sn (1.04mmol) on the Raney nickel supporte...
Takayoshi Hara   Nozomi Fujita   Nobuyuki Ichikuni   Karen Wilson   Adam F. Lee   Shogo Shimazu   
ACS CATALYSIS 4(11) 4040-4046 2014年11月 [査読有り]
Intercalation of an in situ prepared [Rh(OH)(6)](3) complex into an anion exchangeable NiZn layered hydroxy double salt (Rh/NiZn) was demonstrated. The resulting Rh/NiZn effectively catalyzed the 1,4-addition of diverse enones and phenylboronic ac...
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...