Alvin Orbaek White
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View article: Evaluation of a HVDC Interconnection to Improve the Voltage Stability of the Nigerian Transmission Network
Evaluation of a HVDC Interconnection to Improve the Voltage Stability of the Nigerian Transmission Network Open
The Nigerian transmission network is prone to outages and low reliability, and both issues are currently impacting the population's quality of life and hindering economic development. This situation is expected to worsen in the future, due…
View article: Comparing Ultralong Carbon Nanotube Growth from Methane over Mono- and Bi-Metallic Iron Chloride Catalysts
Comparing Ultralong Carbon Nanotube Growth from Methane over Mono- and Bi-Metallic Iron Chloride Catalysts Open
This research endeavours to study the growth of ultralong carbon nanotubes (UL-CNTs) from methane using diverse catalysts, namely FeCl3, bi-metallic Fe-Cu, Fe-Ni, and Fe-Co chlorides. Aqueous catalyst solutions were evenly dispersed on sil…
View article: Enhanced thermoelectricity in Bi-sprayed bismuth sulphide particles
Enhanced thermoelectricity in Bi-sprayed bismuth sulphide particles Open
Bismuth sulphide (Bi2S3), an n-type semiconductor that critically demonstrates the Seebeck effect with Seebeck coefficients of about 300 μVK−1. However, its poor electrical conductivity makes it unsuitable for thermoelectric applications. …
View article: The role of graphene in new thermoelectric materials
The role of graphene in new thermoelectric materials Open
This article highlights new and interesting research ideas that explored graphene's potential for thermoelectrics.
View article: Impact of a HVDC Link on the Reliability of the Bulk Nigerian Transmission Network
Impact of a HVDC Link on the Reliability of the Bulk Nigerian Transmission Network Open
Regular and reliable access to energy is critical to the foundations of a stable and growing economy. The Nigerian transmission network generates more electricity than is consumed but, due to unpredicted outages, customers are often left w…
View article: Upcycling of face masks to application-rich multi- and single-walled carbon nanotubes
Upcycling of face masks to application-rich multi- and single-walled carbon nanotubes Open
We report the use of face mask materials as a carbon precursor for the synthesis of multi- and single-walled carbon nanotubes (CNTs) in an open-loop chemical recycling process. Novel surgical mask precursors were suspended in toluene and i…
View article: Interactions between multi-walled carbon nanotubes and plankton as detected by Raman spectroscopy
Interactions between multi-walled carbon nanotubes and plankton as detected by Raman spectroscopy Open
View article: From Waste Plastics to Carbon Nanotube Audio Cables
From Waste Plastics to Carbon Nanotube Audio Cables Open
Carbon nanotubes (CNTs) have long been at the forefront of materials research, with applications ranging from composites for increased tensile strength in construction and sports equipment to transistor switches and solar cell electrodes i…
View article: The Mechanics of Forming Ideal Polymer–Solvent Combinations for Open-Loop Chemical Recycling of Solvents and Plastics
The Mechanics of Forming Ideal Polymer–Solvent Combinations for Open-Loop Chemical Recycling of Solvents and Plastics Open
The inherent value and use of hydrocarbons from waste plastics and solvents can be extended through open-loop chemical recycling, as this process converts plastic to a range of non-plastic materials. This process is enhanced by first creat…
View article: Increased Electrical Conductivity of Carbon Nanotube Fibers by Thermal and Voltage Annealing
Increased Electrical Conductivity of Carbon Nanotube Fibers by Thermal and Voltage Annealing Open
We report the effect of annealing, both electrical and by applied voltage, on the electrical conductivity of fibers spun from carbon nanotubes (CNTs). Commercial CNT fibers were used as part of a larger goal to better understand the factor…
View article: On the Use of Carbon Cables from Plastic Solvent Combinations of Polystyrene and Toluene in Carbon Nanotube Synthesis
On the Use of Carbon Cables from Plastic Solvent Combinations of Polystyrene and Toluene in Carbon Nanotube Synthesis Open
For every three people on the planet, there are approximately two Tonnes (Te) of plastic waste. We show that carbon recovery from polystyrene (PS) plastic is enhanced by the coaddition of solvents to grow carbon nanotubes (CNTs) by liquid …
View article: The Mechanics of Forming Ideal Polymer Solvent Combinations for Open-Loop Chemical Recycling of Plastics and Solvents
The Mechanics of Forming Ideal Polymer Solvent Combinations for Open-Loop Chemical Recycling of Plastics and Solvents Open
The inherent value and use of hydrocarbon from waste plastics and solvents can be extended through open-loop chemical recycling as this process converts plastic to range of non-plastic materials. This process is enhanced by first creating …
View article: Synthesis of Carbon Nanotubes via Liquid Injection Chemical Vapour Deposition as a Vector for the Chemical Recycling of Waste Composite Carbon Sources
Synthesis of Carbon Nanotubes via Liquid Injection Chemical Vapour Deposition as a Vector for the Chemical Recycling of Waste Composite Carbon Sources Open
For every three people on the planet there is approximately two Tonne (Te) of available plastic waste. We show that carbon recovery from polystyrene (PS) plastic is enhanced by the co-addition to solvents to grow carbon nanotubes (CNTs) by…
View article: Controlled and permanent induced Fermi shifts and upwards band bending in ZnO nanorods by surface stripping with argon bombardment
Controlled and permanent induced Fermi shifts and upwards band bending in ZnO nanorods by surface stripping with argon bombardment Open
View article: Effect of Applied Pressure on the Electrical Resistance of Carbon Nanotube Fibers
Effect of Applied Pressure on the Electrical Resistance of Carbon Nanotube Fibers Open
Carbon nanotubes (CNTs) can be spun into fibers as potential lightweight replacements for copper in electrical current transmission since lightweight CNT fibers weigh <1/6th that of an equivalently dimensioned copper wire. Experimentally, …
View article: Pressure dependent conduction of individual multi-walled carbon nanotubes: the effect of mechanical distortions
Pressure dependent conduction of individual multi-walled carbon nanotubes: the effect of mechanical distortions Open
Multi-walled carbon nanotubes (MWCNTs) show an oscillation in electrical resistance (from I–V measurements) during mechanical distortion in which peak separation is inversely correlated with the diameter of the MWCNTs.
View article: Facile and environmentally friendly synthesis of ultramicroporous carbon spheres: A significant improvement in CVD method
Facile and environmentally friendly synthesis of ultramicroporous carbon spheres: A significant improvement in CVD method Open
View article: Carbon-assisted catalyst pretreatment enables straightforward synthesis of high-density carbon nanotube forests
Carbon-assisted catalyst pretreatment enables straightforward synthesis of high-density carbon nanotube forests Open
View article: Chemical Recycling of Consumer-Grade Black Plastic into Electrically Conductive Carbon Nanotubes
Chemical Recycling of Consumer-Grade Black Plastic into Electrically Conductive Carbon Nanotubes Open
The global plastics crisis has recently focused scientists’ attention on finding technical solutions for the ever-increasing oversupply of plastic waste. Black plastic is one of the greatest contributors to landfill waste, because it canno…
View article: Highly Consistent Atmospheric Pressure Synthesis of Carbon Nanotube Forests by Mitigation of Moisture Transients
Highly Consistent Atmospheric Pressure Synthesis of Carbon Nanotube Forests by Mitigation of Moisture Transients Open
Consistent synthesis of carbon nanotubes (CNTs) using laboratory-scale methods is essential to the development of commercial applications, particularly with respect to the verification of recipes that achieve control of CNT diameter, chira…