Studies on Indian ocean manganese nodules XII. Physicochemical properties and catalytic activity of sodium hydroxide treated manganese nodules

Authors
Parida, KM Satapathy, PK
Citation
Km. Parida et Pk. Satapathy, Studies on Indian ocean manganese nodules XII. Physicochemical properties and catalytic activity of sodium hydroxide treated manganese nodules, J COLL I SC, 210(1), 1999, pp. 130-133
Citations number
16
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN journal
00219797 → ACNP
Volume
210
Issue
1
Year of publication
1999
Pages
130 - 133
Database
ISI
SICI code
0021-9797(19990201)210:1<130:SOIOMN>2.0.ZU;2-M
Abstract
The effects of alkali (sodium hydroxide) treatment on the physico-chemical properties and catalytic activity for H2O2 decomposition and CO oxidation o f Indian Ocean manganese nodules have been studied. The surface area, surfa ce oxygen, surface hydroxyl groups, etc. increase with alkali treatment up to 0.05 M and there after show a decreasing trend. The high catalytic activ ity of 0.05 M NaOH treated samples are correlated with the surface properti es. (C) 1999 Academic Press.