A
Abu Yaya
Researcher at University of Ghana
Publications - 89
Citations - 1219
Abu Yaya is an academic researcher from University of Ghana. The author has contributed to research in topics: Density functional theory & Carbon nanotube. The author has an hindex of 15, co-authored 80 publications receiving 817 citations. Previous affiliations of Abu Yaya include University of Nantes & University of Trento.
Papers
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Journal ArticleDOI
Purification of single-walled carbon nanotubes
Abu Yaya,Christopher P. Ewels,Ph. Wagner,Irene Suarez-Martinez,A. Gebramariam Tekley,L. Rosgaard Jensen +5 more
TL;DR: In this paper, a simple two annealing-step procedure was proposed to achieve high nanotube purity with minimal sample loss, and the process is less time consuming than conventional acid purification methods which require over 5h, and less destructive than conventional methods with a yield of 26%.
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Band Gap Engineering via Edge-Functionalization of Graphene Nanoribbons
Philipp Wagner,Christopher P. Ewels,Jean Joseph Adjizian,Laurence Magaud,Pascal Pochet,Stephan Roche,Alejandro Lopez-Bezanilla,Viktoria V. Ivanovskaya,Abu Yaya,Mark Rayson,Patrick R. Briddon,Patrick R. Briddon,Bernard Humbert +12 more
TL;DR: In this paper, the effect of edge functionalization on the structure and electronic properties of graphene nanoribbons (GNRs) was studied and band gaps using three different exchange-correlation functionals were calculated.
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Modified halloysite nanoclay as a vehicle for sustained drug delivery.
Ernest Gyan Bediako,Ernest Gyan Bediako,Emmanuel Nyankson,David Dodoo-Arhin,Benjamin Agyei-Tuffour,Dariusz Łukowiec,B. Tomiczek,Abu Yaya,Johnson Kwame Efavi +8 more
TL;DR: The results obtained from SEM, TEM and FTIR analyses indicate that both acid treatment and composite formation have no effect on the tubular structure and morphology of halloysite, but modification of theHalloysite nanotubes did influence the drug release rate.
Journal Article
Fabrication and Characterisation of Ghanaian Bauxite Red Mud-Clay Composite Bricks for Construction Applications
TL;DR: In this article, the behavior of Ghanaian based bauxite red mud-Tetegbu clay composites have been investigated for their applicability in the ceramic brick construction industry as a means of recycling the Bauxite waste.
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Awaso bauxite red mud-cement based composites: Characterisation for pavement applications
TL;DR: In this paper, the development of Bauxite residue (red mud) based cement composite mortar blocks for applications in pavement construction is presented, where the experimental techniques considered include the structural, thermal, morphological and microscopy analysis of the raw bauxite and red mud samples calcined at 800°C.