Wahyu S. Putro   Takashi Kojima   Takayoshi Hara   Nobuyuki Ichikuni   Shogo Shimazu   
Catalysis Science and Technology 8(12) 3010-3014 2018年 [査読有り]
Catalytically active and stable catalysts are highly desirable for the acceptorless dehydrogenation (AD) of alcohols. Herein, we developed Cu-Fe catalysts prepared from Cu-Fe layered double hydroxide (LDH) precursors. These Cu-Fe catalysts exhibit...
Ni-Fe alloy catalysts prepared by a simple hydrothermal method and subsequent H-2 treatment exhibited the greatest activity and selectivity for the hydrogenation of biomass-derived furfural to furfuryl alcohol among the examined second metals, suc...
The addition of Y2O3 into Ni formed a composite catalyst that selectively produced 1,5-pentanediol rather than 1,2-pentanediol in the hydrogenolysis of furfuryl alcohol at 2.0 MPa H-2 and 423 K. Clearly, 1,5-pentanediol was produced over the Ni-0-...
Ni-M (M = Y or La)-catalyzed hydrogenolysis of furfural (FFR) to produce 1,5-pentanediol (1,5-PeD) has been developed through the formation of tetrahydrofurfuryl alcohol (THFA) as an intermediate product. Ni(0)-Y2O3 or Ni(0)-La(OH)(3) composite ca...
Highly catalytic performance of La2O3 in transfer hydrogenation reactions was achieved following pretreatment involving a sequence of heat treatments under different atmospheric gases. Furfural (FFR) was converted to furfuryl alcohol (FFA) in a ve...
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...