Share This Author
Synthesis of Smectites and Porous Pillared Clay Catalysts: A Review
- J. T. Kloprogge
- Chemistry
- 7 July 1998
This paper reviews the synthesis of smectites and porous pillared clay catalysts. Synthetic as well as natural smectites serve as precursors for the synthesis of Al, Zr, Ti, Fe, Cr, Ga, V, Si, and…
Synthesis of Smectite Clay Minerals: A Critical Review
- J. T. Kloprogge, S. Komarneni, J. Amonette
- Geology
- 1 October 1999
Smectites are one of the most important groups of phyllosilicates found in soils and sediments, and certainly one of the most difficult to study. New information about the formation mechanisms,…
Characterization of Synthetic Na-Beidellite
- J. T. Kloprogge, J. Jansen, J. Geus
- Materials Science
- 1 August 1990
Na-beidellite, a member of the smectite group, was grown hydrothermally from a gel of composition 0.35Na2O·2.35Al2O3·7.3SiO2 in NaOH solutions at a pH between 7.5 and 13.5, a pressure of 1 kbar, and…
Low temperature synthesis and characterization of nesquehonite
- J. T. Kloprogge, W. N. Martens, L. Nothdurft, L. V. Duong, G. Webb
- Geology
- 1 June 2003
Nesquehonite, Mg(HCO3)(OH).2H2O or MgCO3.3H2O, was named after its type locality in Nesquehoning, Pennsylvania, USA. The structure of nesquehonite can be envisaged as infinite chains of corner…
Development of Ammonium-Saponites from Gels with Variable Ammonium Concentration and Water Content at Low Temperatures
- J. T. Kloprogge, J. Breukelaar, J. Jansen, J. Geus
- Materials Science
- 1 February 1993
Ammonium-saponite is hydrothermally grown at temperatures below 300°C from a gel with an overall composition corresponding to (NH4)0.6Mg3Si34Al0.6O10(OH)2. The synthetic saponite and coexisting fluid…
Homogeneous forced hydrolysis of aluminum through the thermal decomposition of urea.
- R. Vogels, J. T. Kloprogge, J. Geus
- ChemistryJournal of colloid and interface science
- 1 May 2005
The Effect of Thermal Treatment on the Properties of Hydroxy-Al and Hydroxy-Ga Pillared Montmorillonite and Beidellite
- J. T. Kloprogge, E. Booy, J. Jansen, J. Geus
- Materials ScienceClay Minerals
- 1 June 1994
Abstract The pillaring process of montmorillonite and beidellite with Al and Ga polymers has been studied using XRD, IR, 27Al, 71Ga, and 29Si MAS NMR, TGA, TEM, N2 adsorption and chemical analyses.…
XPS study of basic aluminum sulphate and basic aluminium nitrate
- L. Duong, B. Wood, J. T. Kloprogge
- Chemistry, Materials Science
- 1 June 2005
A 27Al nuclear magnetic resonance study on the optimalization of the development of the Al13 polymer
- J. T. Kloprogge, D. Seykens, J. Jansen, J. Geus
- Chemistry
- 1992
Thermal stability of basic aluminum sulfate
- J. T. Kloprogge, J. Geus, J. Jansen, D. Seykens
- Materials Science
- 1 November 1992
...
...