Phase evolution of vanadium oxides obtained through temperature programmed calcinations of ammonium vanadate in hydrogen atmosphere and their humidity …

AA Akande, EC Linganiso, BP Dhonge… - Materials Chemistry and …, 2015 - Elsevier
The possibility of obtaining vanadium dioxide (VO 2)[wherein the vanadium ionic state is 4+]
from a precursor of ammonium metavanadate (NH 4 VO 3) bearing the ion V 5+ is …

The effect of Co and In combinational or individual doping on the structural, optical and selective sensing properties of ZnO nanoparticles

MW Maswanganye, KE Rammutla, TE Mosuang… - Sensors and Actuators B …, 2017 - Elsevier
Variably doped ZnO samples by the sol-gel process have been tested for response to
humidity and industrial gases of CO, CH 4, NH 3 and H 2. The elements of Cobalt (Co) and …

Performance of serological and molecular tests within acute HIV infection

K Fransen, I de Baetselier, E Rammutla… - Journal of Clinical …, 2017 - Elsevier
Background Early diagnosis of acute HIV infection can be challenging and is critical in
regards to early therapeutic decision making. Objectives To evaluate the performance of …

A comparison of the extended x-ray absorption fine structure of nanocrystalline ZrO2 prepared by high-energy ball milling and other methods

AV Chadwick, MJ Pooley, KE Rammutla… - Journal of Physics …, 2003 - iopscience.iop.org
We report the results of an extended x-ray absorption fine structure (EXAFS) study of a
sample of ZrO 2 prepared by high-energy ball milling. X-ray diffraction showed that the …

Magnetism variations and susceptibility hysteresis at the metal-insulator phase transition temperature of VO2 in a composite film containing vanadium and tungsten …

AA Akande, KE Rammutla, T Moyo, NSE Osman… - Journal of Magnetism …, 2015 - Elsevier
We report on the magnetic property of 0.67–WO 3+ 0.33–VO x mixture film deposit on the
corning glass substrate using the chemical sol–gel and atmospheric pressure chemical …

Detection of new HIV infections in a multicentre HIV antiretroviral pre-exposure prophylaxis trial

K Fransen, I de Baetselier, E Rammutla… - Journal of Clinical …, 2017 - Elsevier
Background Monthly specimens collected from FEM-PrEP—a Phase III trial [1] were
investigated for the detection of acute HIV (AHI) infection. Objectives To evaluate the …

Studies of the location of precious metals in nanocrystalline titanium dioxide using XRD and XANES

KE Rammutla, SLP Savin, MG Matshaba… - … status solidi c, 2007 - Wiley Online Library
Abstract Au, Ag, Pt and Pd doped TiO2 nanocrystals were prepared using sol‐gel routes. X‐
ray Near Edge Structure (XANES) was used to study the location of these precious metal …

Investigation of the superionic behaviour of BaF 2 (x mol% LaF 3) by raman and brillouin scattering and molecular dynamics simulations

KE Rammutla, JD Comins, RM Erasmus… - Radiation effects and …, 2002 - Taylor & Francis
High temperature Raman and Brillouin light scattering experiments have been combined
with molecular dynamics simulations to provide a comprehensive study of the superionic …

[PDF][PDF] Larger Selectivity of the V^ sub 2^ O^ sub 5^ Nano-particles Sensitivity to NO^ sub 2^ than NH^ sub 3^

AA Akande, BW Mwakikunga, KE Rammutla… - Sensors & …, 2015 - sensorsportal.com
V2O5 nanoparticles (NPs) were prepared using microwave irradiation technique and
characterized using X-ray diffraction (XRD), Raman spectroscopy (RS), Field emission …

EXAFS and Raman scattering studies of Y and Zr doped nano-crystalline tin oxide

KE Rammutla, AV Chadwick, J Harding… - Journal of Physics …, 2010 - iopscience.iop.org
Nanocrystals of Y and Zr doped SnO 2 have been prepared by sol-gel route and annealed
at 200, 400, 600, 800 and 1000 ºC. The X-ray diffraction (XRD) results showed the average …