Structure and Energy Profile of the Skeletal Nickel SurfaceAccording to the Small-Angle X-Ray Diffraction and Adsorption CalorimetryData

A systematic study of the surface of Raney nickel-based pyrophoric catalysts by small-angle X-ray diffraction analysis was carried out for the first time. The parameters of the crystallites constituting the active catalyst surface were determined. A correlation between the surface structure and the...

Full description

Saved in:
Bibliographic Details
Published in:Russian journal of general chemistry 2020-01, Vol.90 (9), p.1787-1794
Main Authors: Kuznetsov, V V, Yu, Osadchaya T, Afineevskii, A V, Prozorov, D A, Lukin, M V, Smirnova, D N
Format: Article
Language:English
Subjects:
Adsorption
Catalysts
Crystallites
Heat measurement
Hydrogen peroxide
Hydrogen storage
Hydrogenation
Liquid phases
Nickel
Nickel base alloys
Parameters
Sodium hydroxide
Surface chemistry
Surface structure
X-ray diffraction
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A systematic study of the surface of Raney nickel-based pyrophoric catalysts by small-angle X-ray diffraction analysis was carried out for the first time. The parameters of the crystallites constituting the active catalyst surface were determined. A correlation between the surface structure and the activity of skeletal nickel for the liquid-phase hydrogenation reactions was demonstrated. The effect of treatment of Ni–Al alloy with sodium hydroxide and hydrogen peroxide on the catalyst particle size and on the course of the hydrogenation reaction was revealed and substantiated. The X-ray diffraction data on the catalyst surface structure and the adsorption calorimetry data were correlated with the skeletal nickel activity parameters.
ISSN:1070-3632
1608-3350
DOI:10.1134/S1070363220090327