𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Preparation of niobates of rhodium and nickel and their catalytic behaviors during calcination and reduction treatments

✍ Scribed by K. Kunimori; H. Shindo; H. Oyanagi; T. Uchijima

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
562 KB
Volume
16
Category
Article
ISSN
0920-5861

No coin nor oath required. For personal study only.

✦ Synopsis

Double oxides of Rh and Ni have been prepared by chemical mixing methods. Silica-supported and unsupported RhNbO4 and NiNbE06 catalysts exhibited strong metal-oxide interaction behaviors in ethane hydrogenolysis activities after the decomposition of the double oxides by Hz reduction at 500 'C. Silica-supported and zeolite-supported RhV04 catalysts showed high activity and selectivity for dehydrogenation of cyclohexane after the decomposition in Hz. The double-oxide catalyst systems can be used as starting materials to obtain high-performance metal catalysts (redispersion of metals by Hz reduction and regeneration of catalysts by calcination at a high temperature).

📜 SIMILAR VOLUMES

Preparation and characterization of nick
Preparation and characterization of nickel-based mixed-oxides and their performance for catalytic methane decomposition
✍ M.E. Rivas; J.L.G. Fierro; R. Guil-López; M.A. Peña; V. La Parola; M.R. Goldwass 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 468 KB

The preparation of three different types of mixed nickel oxides is described. These systems include: (i) the perovskite LaNiO 3 oxide, (ii) a mixed-oxide derived from a hydrotalcite precursor, and (iii) the spinel-type NiAl 2 O 4 oxide. These systems were prepared with the aim of studying the activa

Effect of the reduction–preparation meth
Effect of the reduction–preparation method on the surface states and catalytic properties of supported-nickel particles
✍ M. Cerro-Alarcón; B. Bachiller-Baeza; A. Guerrero-Ruiz; I. Rodríguez-Ramos 📂 Article 📅 2006 🏛 Elsevier Science 🌐 English ⚖ 438 KB

Several high surface area graphite-supported Ni catalysts were prepared and reduced by different methods. Samples were prepared by impregnation of the support and then submitted to traditional H 2 flow reduction at high temperature or to reduction with aqueous hydrazine at low temperature, and compa

Preparation of Resorcinarene-Functionali
Preparation of Resorcinarene-Functionalized Gold Nanoparticles and Their Catalytic Activities for Reduction of Aromatic Nitro Compounds
✍ Yong Yao; Yan Sun; Ying Han; Chaoguo Yan 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 228 KB

## Abstract Resorcinarene‐functionalized gold nanoparticles (AuNPs) were prepared conveniently in aqueous solution in the presence of amphiphilic tetramethoxyresorcinarene tetraaminoamide. The obtained AuNPs were characterized and analyzed by UV‐vis, FT‐IR, XRD and TEM, respectively. The results sh