REDUCTION OF NICKEL-OXIDE BY CARBON .3. KINETIC-STUDIES OF THE INTERACTION BETWEEN NICKEL-OXIDE AND NATURAL GRAPHITE

Authors
SHARMA SK VASTOLA FJ WALKER PL
Citation
Sk. Sharma et al., REDUCTION OF NICKEL-OXIDE BY CARBON .3. KINETIC-STUDIES OF THE INTERACTION BETWEEN NICKEL-OXIDE AND NATURAL GRAPHITE, Carbon, 35(4), 1997, pp. 535-541
Citations number
11
Categorie Soggetti
Chemistry Physical","Material Science
Journal title
Carbon → ACNP
ISSN journal
00086223
Volume
35
Issue
4
Year of publication
1997
Pages
535 - 541
Database
ISI
SICI code
0008-6223(1997)35:4<535:RONBC.>2.0.ZU;2-C
Abstract
The rate of interaction of equi-molar micron-sized particles of NiO wi th plate-like particles of natural graphite has been studied between 9 00 and 1000 degrees C in both a closed system and in vacuo. Both CO an d CO2 are primary products of the reaction. In both a closed system an d in vacuo, reaction proceeds essentially to complete reduction of NiO . Reduction in vacuo is more rapid than in a closed system. Reduction of NiO in vacuo is described by first order plots, with the increase i n rate constant values with temperature having an activation energy of 75 kcal mol(-1). (C) 1997 Elsevier Science Ltd.