Faculty Profiles

Profile

Name: Dr. Bridget K. Mutuma

Qualifications

  • Ph.D in Chemistry, University of Witwatersrand, South Africa, 2016
  • MSc/ Materials Science and Engineering, Kangwon National University, South Korea, 2013
  • BSc. Analytical Chemistry, Kenyatta University, Kenya, 2009

Research Interests

  • Functional nanomaterials
  • Supercapacitors
  • Gas and Electrochemical sensors
  • Solar cells
  • Photocatalysis

Publications

  1. Zikalala, Sithembela A., Mandla B. Chabalala, Nozipho N. Gumbi, Neil J. Coville, Bhekie B. Mamba, Bridget K. Mutuma, and Edward N. Nxumalo. "Microwave-assisted synthesis of titania–amorphous carbon nanotubes/amorphous nitrogen-doped carbon nanotubes nanohybrids for photocatalytic degradation of textile wastewater." RSC Advances 11, (2021): 6748-6763. https://doi.org/10.1039/D0RA08191D

  2. Bridget K. Mutuma, Xiluva Mathebula, Isaac Nongwe, Bonakele Mtolo, Boitumelo J. Matsoso, Rudolph Erasmus, Zikhona Tetana and Neil J. Coville “Unravelling the interfacial interaction in mesoporous SiO2@nickel phyllosilicate/TiO2 core-shell nanostructures for photocatalytic activity”, Beilstein Journal of Nanotechnology, (2020), 11, 1834-1846. https://doi.org/10.3762/bjnano.11.165

  3. Tarimo D. Japhet, Kabir O. Oyedotun, Abdulmajid A. Mirghni, Bridget Mutuma, Ndeye F. Sylla, Phathutshedzo Murovhi, and Ncholu Manyala. "Enhanced electrochemical performance of supercapattery derived from sulphur-reduced graphene oxide/cobalt oxide composite and activated carbon from peanut shells." International Journal of Hydrogen Energy (2020), 45, 33059-33075. https://doi.org/10.1016/j.ijhydene.2020.09.142\

  4. Balla Ngom, Maty Ndiaye, Fatou S. Ndeye, Bridget K. Mutuma and Ncholu Manyala “Sustainable development of vanadium pentoxide carbon composites derived from Hibiscus sabdariffa family for application in supercapacitors”, Sustainable Energy & Fuels 4, no. 9 (2020), 4814-4830. https://doi.org/10.1039/D0SE00779J

  5. Nicholas Musyoka, Bridget K. Mutuma and Ncholu Manyala “Onion-derived Activated Carbons with Enhanced Surface Area for Improved Hydrogen Storage and Electrochemical Energy Application”, RSC Advances, 10, (2020), 26928-26936. https://doi.org/10.1039/D0RA04556J

  6. Andrew. M. Hank, Cuthbert. Nyamupangedengu, Bridget. K. Mutuma, Hu Li, Neil. J. Coville, K. Leifer and Iakovos Sigalas “Comparative Characterisation of CNS/Epoxy and BN/Epoxy Nanodielectrics using Electrical Tree PD Measurements and Atomic Force Microscopy”, International Journal of Engineering Research in Africa, vol. 48, (2020) pp. 24-37. https://doi.org/10.4028/www.scientific.net/JERA.48.24

  7. Federico Poli, Damilola Momodu, Giovanni Emanuele Spina, Antonio Terella, Bridget K. Mutuma, Maria Letizia Focarete, Ncholu Manyala and Francesca Soavi “Pullulan-ionic liquid supercapacitor; a novel, smart combination of green components for an easy to recycle device; Electrochimica Acta, (2020), 135872. https://doi.org/10.1016/j.electacta.2020.135872

  8. Kabir Oyedotun, Tshifhiwa Masikhwa, Abdulmajid Mirghni, Bridget K. Mutuma and Ncholu Manyala “Electrochemical properties of asymmetric supercapacitor based on optimized carbon-based nickel-cobalt-manganese ternary hydroxide and sulphur-doped carbonized iron-polyaniline electrodes”, Electrochimica Acta, (2020), 135610. https://doi.org/10.1016/j.electacta.2020.135610

  9. Fatou S. Ndeye, Maty Ndiaye, Balla Ngom, Bridget K. Mutuma, Damilola Momodu, Mohamed Chaker, and Ncholu Manyala. “Ex-situ nitrogen-doped porous carbons as electrode materials for high performance supercapacitor”, Journal of Colloid and Interface Science 569 (2020), 332-345.https://doi.org/10.1016/j.jcis.2020.02.061

  10. Maty Ndiaye, Fatou S. Ndeye, Balla Ngom, Bridget K. Mutuma, Julian Dangbegnon, Sekhar Ray and Ncholu Manyala “Nitridation temperature effect on carbon vanadium oxynitrides for a symmetric supercapacitor”, Nanomaterials,  9 (2019), 1762. https://doi.org/10.3390/nano9121762

  11. Fatou S. Ndeye, Maty Ndiaye, Balla Ngom, Damilola Momodu, Jack Madito, Bridget K. Mutuma and Ncholu Manyala “Effect of porosity enhancing agents on the electrochemical performance of high-energy ultracapacitor electrodes derived from peanut shell waste”, Scientific reports 9 (2019),13673. https://doi.org/10.1038/s41598-019-50189-x

  12. Lebogang R. Mosiane, Boitumelo J. Matsoso, Annah Makhongoana, Bridget K. Mutuma, Thomas H. Mongwe, Neil J. Coville and Manoko S. Maubane “Tuning the properties of CVD-grown multiwalled carbon nanotubes by ex-situ co-doping with boron and nitrogen heteroatoms”, Journal of Nanoparticle Research, 21, (2019), 207. https://doi.org/10.1007/s11051-019-4654-7

  13. Bridget K. Mutuma, Clara I. Garcia-Martinez, Rodrigo C. Dias, Boitumelo Matsoso, Ivo A. Hümmelgen and Neil J. Coville “Nitrogen-doped hollow carbon spheres as chemical vapour sensors”, New Journal of Chemistry, 43, (2019), 8418-8427. Featured in the front cover. https://doi.org/10.1039/C9NJ00628A

  14. Bridget K. Mutuma, Boitumelo J. Matsoso, Damilola Momodu, Kabir O. Oyedotun, Neil J. Coville and Ncholu Manyala “Deciphering the structural, textural and electrochemical properties of activated BN-doped spherical carbons”, Nanomaterials, 9, (2019), 446. https://doi.org/10.3390/nano9030446

  15. Damilola Momodu, Ndeye Fatou Sylla, Bridget K. Mutuma, Abdulhakeem Bello, Tshifhiwa Masikhwa, Simon Lindberg, Aleksandar Matic and Ncholu Manyala “Stable ionic-liquid-based symmetric supercapacitors from Capsicum seed-porous carbons”, Journal of Electroanalytical Chemistry Volume 838, (2019), Pages 119-128. https://doi.org/10.1016/j.jelechem.2019.02.045

  16. Bridget K. Mutuma, Kamalakannan Ranganathan, Boitumelo J. Matsoso, Daniel Wamwangi, Jonathan M. Keartland and Neil J. Coville “Effect of Gold Nanospheres and Nanodots on the Performance of PEDOT:PSS Solar Cells”, J. Nanoscience and Nanotechnology. 19, (2019), 2747–2754. https://doi.org/10.1166/jnn.2019.15821

  17. Boitumelo Matsoso, Bridget K. Mutuma, Caren Billing, Kamalakannan Ranganathan, Tsenolo Lerotholi, Glenn Jones and Neil J. Coville “Investigating the electrochemical behaviour and detection of uric acid on ITO electrodes modified with differently doped N-graphene films”, Journal of Electroanalytical Chemistry, Volume 833, (2019), Pages 160-168. https://doi.org/10.1016/j.jelechem.2018.11.040

  18. Mongwe, Thomas H., Boitumelo J. Matsoso, Bridget K. Mutuma, Neil J. Coville, and Manoko S. Maubane. “Synthesis of chain-like carbon nano-onions by a flame assisted pyrolysis technique using different collecting plates.” Diamond and Related Materials 90 (2018), 135-143. https://doi.org/10.1016/j.diamond.2018.10.002.

  19. Boitumelo Matsoso, Bridget K. Mutuma, Caren Billing, Kamalakannan Ranganathan, Tsenolo Lerotholi, Glenn Jones and Neil J. Coville “The effect of N-configurations on selective detection of dopamine in the presence of uric and ascorbic acids using surfactant free N-graphene modified ITO electrodes”, Electrochimica Acta 286, (2018), 29-38. https://doi.org/10.1016/j.electacta.2018.08.017

  20. Moritz Wolf, Bridget K. Mutuma, Neil J. Coville, Nico Fischer, and Michael Claeys, “The role of CO in the water-induced formation of cobalt oxide in a high conversion Fischer-Tropsch environment”, ACS Catalysis, 8, (2018), 3985-3989. https://doi.org/10.1021/acscatal.7b04177

  21. Boitumelo Matsoso, Kamalakannan Ranganathan, Bridget K. Mutuma, Tsenolo Lerotholi, Glenn Jones and Neil J. CovilleSynthesis and characterization of boron carbon oxynitride films with tunable composition using methane, boric acid and ammonia”, New Journal of Chemistry, 41, (2017), 9497-9504. https://doi.org/10.1039/C7NJ01886J.

  22. Bridget K. Mutuma, Boitumelo J. Matsoso, Kamalakannan Ranganathan, Daniel Wamwangi, Jonathan M. Keartland and Neil J. Coville “Generation of radical species from CVD grown pristine and N-doped solid carbon spheres using H2 and Ar as carrier gases”, RSC Advances, 7, (2017), 21187-21195. https://doi.org/10.1039/C7RA03142D.

  23. Francis Otieno, Bridget K. Mutuma, Kamalakannan Ranganathan, Mildred Airo, Rudolph Erasmus, Neil Coville and Daniel Wamwangi “Enhancement of organic photovoltaic device performance via P3HT:PCBM solution heat treatment”, Thin solid films,  625, (2017): 62-69. https://doi.org/10.1016/j.tsf.2017.01.047.

  24. Boitumelo Matsoso, Kamalakannan Ranganathan, Bridget K. Mutuma, Tsenolo Lerotholi, Glenn Jones and Neil J. CovilleSingle-step synthesis of crystalline h-BN quantum-and nanodots embedded in boron carbon nitride films”, Nanotechnology, IOP, 28, (2017), 105602. https://doi.org/10.1088/1361-6528/aa56df

  25. Bridget K. Mutuma, Rafael Rodrigues, Kamalakannan Ranganathan, Boitumelo Matsoso, Daniel Wamwangi, Ivo A. Hümmelgen and Neil J. Coville “Hollow carbon spheres and hollow carbon sphere/polyvinylpyrrolidone composite as ammonia sensors”, Journal of Materials Chemistry A, 5, (2017), 2539-2549. This work is featured in the Inside front cover and under the Journal of Materials Chemistry A HOT papers themed collection 2016. https://doi.org/10.1039/C6TA09424D

  26. Boitumelo Matsoso, Kamalakannan Ranganathan, Bridget K. Mutuma, Tsenolo Lerotholi, Glenn Jones and Neil J CovilleTime-dependent evolution of the nitrogen configuration in N-doped graphene films”, RSC Advances, 6 (2016), 106914-106920. https://doi.org/10.1039/C6RA24094A

  27. Bridget K. Mutuma, Boitumelo Matsoso, Kamalakannan Ranganathan, Daniel Wamwangi and Neil J Coville “Generation of open ended, worm like and graphene like structures from layered spherical carbon materials”, RSC Advances 6, (2016), 20399-20408. https://doi.org/10.1039/C5RA25880D

  28. Bridget K. Mutuma, Godlisten N. Shao, Won Duck Kim, Hee Taik Kim, “Sol–gel synthesis of mesoporous anatase–brookite and anatase–brookite–rutile TiO2 nanoparticles and their photocatalytic properties”, Journal of Colloid and Interface Science, (2015), 442, 1-7. https://doi.org/10.1016/j.jcis.2014.11.060