Selective oxidation of glucose on bismuth-promoted Pd-Pt/C catalysts prepared from NOct4Cl-stabilized Pd-Pt colloids

被引：34

作者：

Bonnemann, H ^{[1
]}

Brijoux, W

Brinkmann, R

Tilling, AS

Schilling, T

Tesche, B

Seevogel, K

Franke, R

Hormes, J

Kohl, G

Pollmann, J

Rothe, J

Vogel, W

机构：

[1] Max Planck Inst Kohlenforsch, D-45466 Mulheim, Germany

[2] Univ Bonn, Inst Phys, D-53115 Bonn, Germany

[3] Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany

来源：

INORGANICA CHIMICA ACTA | 1998年 / 270卷 / 1-2期

关键词：

glucose oxidation; bismuth catalysts; Pd-Pt/C catalysts;

D O I：

10.1016/S0020-1693(97)05830-1

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Charcoal-supported Pd-Pt catalysts based on Pd-Pt/NOct(4)Cl colloidal alloys have superior activity and selectivity in the oxidation of glucose to gluconic acid compared with industrial heterogeneous Pd-Pt catalysts. According to transmission electron microscopy, X-ray diffraction/Debye function analysis, X-ray photoelectron spectroscopy, X-ray absorption near edge structure, and extended X-ray absorption fine structure analysis the chemical coreduction of PdCl2 and PtCl2 in the appropriate ratio with NOct(4)BEt(3)H yielded the alloyed Pd-Pt colloids in organic solvents. They are screened by the lipophilic NOct(4)Cl surfactant layer from coagulation and poisoning. TEM showed colloids of particle sizes in the range from 1.5 to 3 nm. (C) 1998 Elsevier Science S.A.

引用

页码：95 / 110

页数：16

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