Wahyu S. Putro Takayoshi Hara Nobuyuki Ichikuni Shogo Shimazu
CHEMISTRY LETTERS 46(1) 149-151 2017年1月 [査読有り]
Efficient Ni-Fe alloy catalysts prepared by environmentally friendly method exhibited high selectivity in the hydrogenation of furfural (FFald) to give 95% yield of furfuryl alcohol (FFalc) under 1 MPa of H-2 at 423K using Ni-Fe(2-1) hydrogen trea...
Juyang Kim Nobuyuki Ichikuni Takayoshi Hara Shogo Shimazu
CATALYSIS TODAY 265 90-94 2016年5月 [査読有り]
SBA-15 supported Mo oxide catalysts (Mo/SBA) were prepared and the local structures of the Mo species were investigated by X-ray diffraction (XRD) and X-ray absorption fine structure (XAFS) measurements. The local structure of Mo on Mo/SBA was abl...
16TH INTERNATIONAL CONFERENCE ON X-RAY ABSORPTION FINE STRUCTURE (XAFS16) 712 2016年
NiO nanocluster catalysts were prepared on a SiO2 support. Ni K-edge XAFS analysis revealed that the combined structure of NiO and Ni-silicate formed by using [Ni(NH3)(6)](2+) as a precursor, whereas pure NiO formed by using Ni-acetylacetonate or ...
N. Ichikuni F. Yanagase K. Mitsuhara T. Hara S. Shimazu
16TH INTERNATIONAL CONFERENCE ON X-RAY ABSORPTION FINE STRUCTURE (XAFS16) 712 2016年
Mesoporous silica SBA-15 supported NbC catalysts were prepared under reduced pressure of CH4-H-2 gas in a closed circulating system. Nb K- nd L-3-edges XAFS measurements revealed that small NbC cluster formed on SBA-15 support and gradual carburiz...
[Rh(OH)(6)](3-) intercalated Ni-Zn mixed basic salt (Rh/NiZn) acts as an efficient catalyst for the hydrophenylation of internal alkynes with arylboronic acids under mild conditions. The turnover number per Rh site approached 740 in the reaction b...
AJ O'Connor A Hokura JM Kisler S Shimazu GW Stevens Y Komatsu
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...
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...
大学院国際学術研究院