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Minerals, Mining and Materials Engineering

Minerals, Mining and Materials Engineering

Recent Submissions

  • R. K., Koech; Reisya, Ichwani; D. O., Oyewole; M., Kigozi; D., Amune; D. M., Sanni; S. A., Adeniji; O. K., Oyewole; A., Bello; E., Ntsoenzok; W. O., Soboyejo (Energies, 2021-11-24)
    The design of electron transport layers (ETLs) with good optoelectronic properties is one of the keys to the improvement of the power conversion efficiencies (PCEs) and stability of perovskite solar cells (PSCs). Titanium ...
  • Ichwani, Reisya; Koech, Richard; K.Oyewole, Oluwaseun; Huda, Adri; O.Oyewole, Deborah; Cromwell, Jaya; L.Martin, Julia; L.Grimm, Ronald; O.Soboyejo, Winston (Extreme Mechanics Letters, 2021-11-17)
    The interfacial robustness of perovskite solar cells (PSCs) is important due to the potential for failure resulting from applied loads or deformation in devices that are fabricated on rigid or flexible substrates, and/or ...
  • Afolayan, David Oluwasegun; Onwualu, Azikiwe Peter; Eggleston, Carrick McAfee; Adetunji, Adelana Rasak; v, Mingjiang; Amankwah, Richard Kwasi (Mining, 2021-09-18)
    Barite, used in mud formulation, is mined in several places to support the industry. However, there is insufficient literature on the downside of mining and associated hazards, especially in the artisanal barite mining ...
  • Koech, Richard; Ichwani, Reisya; Martin, Julia L.; Oyewole, Deborah O.; Oyelade, Omolara V.; Olanrewaju, Yusuf A.; Sanni, Dahiru M.; Adeniji, Sharafadeen A.; Grimm, Ronald L.; Bello, Abdulhakeem; Oyewole, Oluwaseun K.; Ntsoenzok, Esidor; Soboyejo, Winston O. (AIP Advances, 2021-09-15)
    Incorporation of cesium (Cs) into the perovskite layer has become a good strategy to boost the stability and power conversion efficiency (PCE) of perovskite solar cells (PSCs). However, a suitable and scalable method of ...
  • Alfredy, Tusekile; Elisadiki, Joyce; Chande Jande, Yusufu Abeid (Water Supply, 2021-08-30)
    Capacitive deionization (CDI) is among the promising technologies employed for water purification. CDI has been studied for the removal of various ionic species from water including fluoride ion (F−) with promising results. ...
  • Habinshuti, Jean Baptiste; Munganyinka, Jeanne Pauline; Adetunji, Adelena R.; Mishra, Brajendra; Ofori-Sarpong, Grace; Komadja, Gbetoglo Charles; Tanvar, Himanshu; Mukiza, Janvier; Onwualu, Azikiwe P. (Results in Engineering, 2021-07-04)
    In this work, mineralogical and physical characterization of low-grade tantalum-tin ore-samples from Ntunga and Kamonyi of Rwanda were carried out using various techniques. The ore-samples were classified as low-grade and ...
  • Lorivi Moirana, Ruth; Mkunda, Josephine; Paradelo Perez, Marcos; RevocatusMachunda, Revocatus Machunda; Mtei, Kelvin (Journal of Fluorine Chemistry, 2021-08-23)
    It has been established that fluoride bioavailability in the soil is defined by the form which it exists rather than the amount of total fluoride. In the soil, fluoride exist in different fractions such as water soluble ...
  • Mukiza, J.; Habarurema, G.; Gerber, T.I.A.; Hosten, E.; Nkuranga, J.B.; Habinshuti, J.B.; Betz, R. (Inorganic Chemistry Communications, 2020-01-21)
    The reaction of dithizone (H2dtz) with an organometallic rhenium(I) precursor; [Re(CO)5Cl] in ethanol led to the isolation of the octahedral organometallic fac-[Re(CO)3]+ core complex fac-[Re(CO)3(Hdtz)(dttz)] (1). The ...
  • Oluwasegun Afolayan, David; Rasak Adetunji, Adelana; Azikiwe, Peter Onwualu; Ogolo, Oghenerume; Kwasi Amankwah, Richard (Production Engineering, 2021-04-29)
    Successful drilling operations are dependent on the properties of the drilling fluid used to drill wells. Barite is used as a weighting agent during the preparation of drilling fluid. Over the years, oil and gas industry ...
  • Oyewole, D. O.; Koech, Richard; Ichwani, R.; Ahmed, R.; Tamayo, J. Hinostroza; Adeniji, S. A.; Cromwell, J.; Ullo, E. Colin; Oyewole, O. K.; Agyei-Tuffour, B.; Titova, L. V.; Burnham, N. A.; Soboyejo, W. O. (AIP Advances, 2021-06-23)
    Annealing is one of the processing methods that are used for the fabrication of defect-free, photoactive perovskite films with compact grains in highly efficient and stable perovskite solar cells (PSCs). Thus, the annealing ...
  • Lorivi Moirana, Ruth; Kivevele, Thomas; Mkunda, Josephine; Mtei, Kelvin; Machunda, Revocatus (Journal of Analytical Methods in Chemistry, 2021-02-03)
    Increased demand for monitoring and identification of novel and unknown fluorinated compounds (FCs) has demonstrated the need of sensitive fluorine-specific detectors for unknown FCs in both biological and environmental ...
  • Gbetoglo Komadja, Charles; Sarada Pradhan, Prasad; Amulya Roul, Ratna; Babatunde, Adebayo; Jean Habinshuti, Baptiste; Luc Glodji, Adissin; Azikiwe Onwualu, Peter (Heliyon, 2020-11)
    Slope stability assessment is essential for safe and sustainable development widely applied in mining, civil, and environmental engineering projects around the world. This study aimed to conduct a stability analysis of a ...
  • D. M. Sanni; E. Ntsoenzok; E. Saintaime; S. A. Adeniji; O. V. Oyelade; Koech, Richard; D. I. Amune; A. Bello (AIP Advances, 2020)
    In this research, we demonstrated the use of hafnium acetylacetonate (Hfaca) dissolved in ethanol as a buffer layer for perovskite solar cells from non-halide Pb (dehydrated lead acetate) source material. The inverted p-i-n ...
  • Aboubakar Mahamat, Assia; Linda Bih, Numfor; Ayeni, Olugbenga; Azikiwe Onwualu, Peter; Savastano, Jr, Holmer; Oluwole Soboyejo, Winston (Buildings, 2021-02-26)
    This paper explores the effects of cement stabilization (5, 10, 15 and 20 wt%) on the structural and mechanical properties (compressive/flexural strengths and fracture toughness) of abandoned termite mound soil. The crystal ...
  • S. A. Adeniji; J. Cromwell; J. Cromwell; D. O. Oyewole; O. V. Oyelade; Koech, Richard; D. M. Sanni; O. K. Oyewole; B. Babatope; W. O. Soboyejo (AIP Advances, 2021-02-05)
    This paper presents the results of pressure-effects on performance characteristics of near-infra-red perovskite light emitting diodes (PeLEDs) using a combination of experimental and analytical/computational approaches. ...
  • Bello, A.; Sanni, D.M.; Adeniji, S.A.; Anye, V.; Orisekeh, K.; Kigozi, M.; Koech, Richard (Journal of Energy Storage, 2020-02)
    Producing materials with suitable features including robust, and high electrical conductivity for the realization of excellent electrochemical performance for supercapacitor devices remains a great challenge. In this regard, ...
  • Koech, Richard; Kigozi, M.; Bello, A.; Onwualu, P.A; Soboyejo, W. (IEEE, 2019-08)
    The use of solar energy, as an alternative to the conventional fossil fuel based resources, has increased tremendously over the years due to its enormous and environmentally benign nature. In an effort to make solar energy ...
  • Oyewole, Oluwaseun; Oyewole, Deborah; Oyelade, Omolara; Adeniji, Sharafadeen; Koech, Richard; Asare, Joseph; Agyei?Tuffour, Benjamin; Soboyejo, Winston (Macromolecular Materials and Engineering, 2020-09)
    Results of experimental and computational studies of failure of stretchable organic solar cells (SOSCs) are presented here. The SOSCs are produced by the deposition of poly(3,4?ethylenedioxythiophene):polystyrene sulfonate ...

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