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Engineering and Technology
South Africa
2026

D-Index & Metrics

Engineering and Technology

D-Index
56
Citations
8977
World Ranking
2906
National Ranking
7

Ncholu I. Manyala publication distribution in Engineering and Technology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Engineering and Technology in 2026. The highlighted bar marks where Ncholu I. Manyala sits on this spectrum.

38–47 publications: 20 scientists 48–57 publications: 35 scientists 58–67 publications: 96 scientists 68–77 publications: 135 scientists 78–87 publications: 190 scientists 88–97 publications: 259 scientists 98–107 publications: 283 scientists 108–117 publications: 369 scientists 118–127 publications: 341 scientists 128–137 publications: 386 scientists 138–147 publications: 372 scientists 148–157 publications: 457 scientists 158–167 publications: 415 scientists 168–177 publications: 407 scientists 178–187 publications: 421 scientists 188–197 publications: 378 scientists 198–207 publications: 403 scientists 208–217 publications: 317 scientists 218–227 publications: 346 scientists 228–237 publications: 321 scientists 238–247 publications: 260 scientists 248–257 publications: 280 scientists 258–267 publications: 240 scientists 268–277 publications: 214 scientists 278–287 publications: 242 scientists 288–297 publications: 203 scientists 298–307 publications: 166 scientists 308–317 publications: 154 scientists 318–327 publications: 175 scientists 328–337 publications: 159 scientists 338–347 publications: 99 scientists 348–357 publications: 131 scientists 358–367 publications: 106 scientists 368–377 publications: 118 scientists 378–387 publications: 97 scientists 388–397 publications: 108 scientists 398–407 publications: 82 scientists 408–417 publications: 71 scientists 418–427 publications: 64 scientists 428–437 publications: 55 scientists 438–447 publications: 54 scientists 448–457 publications: 60 scientists 458–467 publications: 47 scientists 468–477 publications: 40 scientists 478–487 publications: 30 scientists 488–497 publications: 29 scientists 498–507 publications: 38 scientists 508–517 publications: 40 scientists 518–527 publications: 32 scientists 528–537 publications: 23 scientists 538–547 publications: 28 scientists 548–557 publications: 23 scientists 558–567 publications: 19 scientists 568–577 publications: 16 scientists 578–587 publications: 17 scientists 588–597 publications: 18 scientists 598–607 publications: 22 scientists 608–617 publications: 15 scientists 618–627 publications: 9 scientists 628–637 publications: 11 scientists 638–647 publications: 21 scientists 648–657 publications: 12 scientists 658–667 publications: 9 scientists 668–677 publications: 11 scientists 678–687 publications: 9 scientists 688–697 publications: 6 scientists 698–707 publications: 14 scientists 708–717 publications: 7 scientists 718–727 publications: 8 scientists 728–737 publications: 10 scientists 738–747 publications: 9 scientists 748–757 publications: 5 scientists 758–767 publications: 5 scientists 768–777 publications: 11 scientists 778–787 publications: 7 scientists 788–797 publications: 2 scientists 798–803 publications: 4 scientists 804+ publications: 100 scientists
38 publications 804+

This scientist: 210 publications — 52nd percentile

52% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 804 publications or more.

Ncholu I. Manyala D-index placement in Engineering and Technology in 2026

The chart shows the D-index (discipline H-index) distribution of Engineering and Technology scientists ranked by Research.com in 2026. The highlighted bar marks where Ncholu I. Manyala sits on this spectrum.

30 D-Index: 59 scientists 31 D-Index: 114 scientists 32 D-Index: 129 scientists 33 D-Index: 189 scientists 34 D-Index: 200 scientists 35 D-Index: 262 scientists 36 D-Index: 311 scientists 37 D-Index: 312 scientists 38 D-Index: 350 scientists 39 D-Index: 385 scientists 40 D-Index: 348 scientists 41 D-Index: 362 scientists 42 D-Index: 426 scientists 43 D-Index: 380 scientists 44 D-Index: 310 scientists 45 D-Index: 341 scientists 46 D-Index: 301 scientists 47 D-Index: 306 scientists 48 D-Index: 271 scientists 49 D-Index: 246 scientists 50 D-Index: 210 scientists 51 D-Index: 253 scientists 52 D-Index: 213 scientists 53 D-Index: 221 scientists 54 D-Index: 195 scientists 55 D-Index: 186 scientists 56 D-Index: 170 scientists 57 D-Index: 167 scientists 58 D-Index: 166 scientists 59 D-Index: 144 scientists 60 D-Index: 152 scientists 61 D-Index: 141 scientists 62 D-Index: 138 scientists 63 D-Index: 131 scientists 64 D-Index: 118 scientists 65 D-Index: 114 scientists 66 D-Index: 119 scientists 67 D-Index: 95 scientists 68 D-Index: 87 scientists 69 D-Index: 77 scientists 70 D-Index: 89 scientists 71 D-Index: 69 scientists 72 D-Index: 54 scientists 73 D-Index: 46 scientists 74 D-Index: 55 scientists 75 D-Index: 54 scientists 76 D-Index: 49 scientists 77 D-Index: 53 scientists 78 D-Index: 46 scientists 79 D-Index: 28 scientists 80 D-Index: 39 scientists 81 D-Index: 36 scientists 82 D-Index: 24 scientists 83 D-Index: 26 scientists 84 D-Index: 36 scientists 85 D-Index: 18 scientists 86 D-Index: 25 scientists 87 D-Index: 19 scientists 88 D-Index: 26 scientists 89 D-Index: 27 scientists 90 D-Index: 23 scientists 91 D-Index: 15 scientists 92 D-Index: 12 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 13 scientists 97 D-Index: 13 scientists 98 D-Index: 9 scientists 99 D-Index: 7 scientists 100 D-Index: 7 scientists 101 D-Index: 8 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 9 scientists 105 D-Index: 6 scientists 106 D-Index: 9 scientists 107+ D-Index: 99 scientists
30 D-Index 107+

This scientist: 56 D-Index — 72nd percentile

72% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 107 D-Index or more.

Research.com Recognitions

  • 2026 - Research.com Engineering and Technology in South Africa Leader Award

Overview

Ncholu I. Manyala is affiliated with the University of Pretoria in South Africa. Their research primarily spans the fields of Materials Science and Engineering, with a focus on subfields including Electronic, Optical and Magnetic Materials, Electrical and Electronic Engineering, Polymers and Plastics, Materials Chemistry, and Biomedical Engineering.

The scientist's work concentrates on several main topics, notably:

  • Supercapacitor Materials and Fabrication
  • Advanced battery technologies research
  • Conducting polymers and applications
  • Advancements in Battery Materials
  • Graphene research and applications
  • Electrocatalysts for Energy Conversion
  • Advanced Battery Materials and Technologies

Manyala has contributed to numerous publications in recurring venues, reflecting the focus and scope of their research. Frequent publication venues include:

  • Journal of Energy Storage
  • SSRN Electronic Journal
  • Electrochimica Acta
  • ECS Meeting Abstracts
  • RSC Advances

Among the more notable recent papers authored or coauthored by Manyala are:

  • Ex-situ nitrogen-doped porous carbons as electrode materials for high performance supercapacitor, 2020, Journal of Colloid and Interface Science
  • Optimization of graphene oxide through various Hummers' methods and comparative reduction using green approach, 2021, Diamond and Related Materials
  • Polypyrrole-Promoted rGO-MoS2 Nanocomposites for Enhanced Photocatalytic Conversion of CO2 and H2O to CO, CH4, and H2 Products, 2020, ACS Applied Energy Materials
  • Waste chicken bone-derived porous carbon materials as high performance electrode for supercapacitor applications, 2022, Journal of Energy Storage
  • High energy and excellent stability asymmetric supercapacitor derived from sulphur-reduced graphene oxide/manganese dioxide composite and activated carbon from peanut shell, 2020, Electrochimica Acta

The scientist frequently collaborates with other researchers, many of whom have coauthored numerous studies. Notable frequent co-authors include:

  • Kabir O. Oyedotun
  • Delvina Japhet Tarimo
  • Vusani M. Maphiri
  • Ndeye F. Sylla
  • Oladepo Fasakin

The breadth of Manyala's research reflects an integration of materials engineering with practical energy applications, focusing substantially on supercapacitor technology and advanced battery materials, alongside investigations into polymers, graphene derivatives, and electrocatalysts. This profile emphasizes a sustained research activity in energy storage materials as well as materials chemistry relevant to energy conversion processes.

Best Publications

  • Large anomalous Hall effect in a silicon-based magnetic semiconductor

    Ncholu Manyala;Yvan Sidis;Yvan Sidis;John F. DiTusa;Gabriel Aeppli

  • Magnetoresistance from quantum interference effects in ferromagnets

    N. Manyala;Y. Sidis;Y. Sidis;J. F. DiTusa;G. Aeppli

  • Magnetoresistance From Quantum Interference Effects in Ferromagnets

    N. Manyala;Y Siids;J. F. DiTusa;G. Aeppli

  • Renewable pine cone biomass derived carbon materials for supercapacitor application

    Abdulhakeem Bello;Ncholu I. Manyala;Farshad Barzegar;Abubakar A. Khaleed;Abubakar A. Khaleed

  • Hydrothermal synthesis of manganese phosphate/graphene foam composite for electrochemical supercapacitor applications

    Abdulmajid Abdallah Mirghni;Moshawe Jack Madito;Tshifhiwa Moureen Masikhwa;Kabir O. Oyedotun

  • Microwave-Assisted Synthesis of High-Voltage Nanostructured LiMn1.5Ni0.5O4 Spinel: Tuning the Mn3+ Content and Electrochemical Performance

    Charl J. Jafta;Charl J. Jafta;Mkhulu K. Mathe;Ncholu Manyala;Wiets D. Roos

  • A high energy density asymmetric supercapacitor utilizing a nickel phosphate/graphene foam composite as the cathode and carbonized iron cations adsorbed onto polyaniline as the anode

    Abdulmajid Abdallah Mirghni;M.J. Madito;Kabir O. Oyedotun;T.M. Masikhwa

  • Synthesis and electrochemical investigation of spinel cobalt ferrite magnetic nanoparticles for supercapacitor application

    H. Kennaz;A. Harat;O. Guellati;D. Y. Momodu

  • Symmetric supercapacitors based on porous 3D interconnected carbon framework

    Abdulhakeem Bello;Farshad Barzegar;Damilola Y. Momodu;Julien K. Dangbegnon

  • Chemical adsorption of NiO nanostructures on nickel foam-graphene for supercapacitor applications

    A. Bello;K. Makgopa;M. Fabiane;D. Dodoo-Ahrin

  • Nickel-cobalt phosphate/graphene foam as enhanced electrode for hybrid supercapacitor

    Abdulmajid Abdallah Mirghni;Kabir O. Oyedotun;Badr Ahmed Mahmoud;Abdulhakeem Bello;Abdulhakeem Bello

  • Activated carbon derived from tree bark biomass with promising material properties for supercapacitors

    Damilola Y. Momodu;M.J. Madito;Farshad Barzegar;Abdulhakeem Bello

  • Asymmetric supercapacitor based on VS2 nanosheets and activated carbon materials

    Tshifhiwa M. Masikhwa;Farshad Barzegar;Julien K. Dangbegnon;Abdulhakeem Bello

  • High performance asymmetric supercapacitor based on molybdenum disulphide/graphene foam and activated carbon from expanded graphite.

    Tshifhiwa M. Masikhwa;Moshawe J. Madito;Abdulhakeem Bello;Julien K. Dangbegnon

  • Investigation of different aqueous electrolytes on the electrochemical performance of activated carbon-based supercapacitors

    Farshad Barzegar;Damilola Y. Momodu;Omobosede O. Fashedemi;Abdulhakeem Bello

  • Simonkolleite nano-platelets: Synthesis and temperature effect on hydrogen gas sensing properties

    J. Sithole;J. Sithole;Balla D. Ngom;Balla D. Ngom;Balla D. Ngom;Saleh Khamlich;Saleh Khamlich;E. Manikanadan

  • Structural and optical properties of nano-structured tungsten-doped ZnO thin films grown by pulsed laser deposition

    B.D. Ngom;B.D. Ngom;B.D. Ngom;T. Mpahane;N. Manyala;O. Nemraoui

  • Thermochromic VO2 thin films synthesized by rf-inverted cylindrical magnetron sputtering

    J.B. Kana Kana;J.M. Ndjaka;P. Owono Ateba;B.D. Ngom

  • Ex-situ nitrogen-doped porous carbons as electrode materials for high performance supercapacitor

    Ndeye F. Sylla;Ndeye M. Ndiaye;Balla D. Ngom;Bridget K. Mutuma

  • Effect of porosity enhancing agents on the electrochemical performance of high-energy ultracapacitor electrodes derived from peanut shell waste.

    Ndeye Fatou Sylla;Ndeye Maty Ndiaye;B.D. Ngom;Damilola Y. Momodu

  • Manganese oxide/graphene oxide composites for high-energy aqueous asymmetric electrochemical capacitors

    Charl J. Jafta;Funeka Nkosi;Lukas le Roux;Mkhulu K. Mathe

  • High-performance symmetric electrochemical capacitor based on graphene foam and nanostructured manganese oxide

    Abdulhakeem Bello;Omobosede O. Fashedemi;Joel N. Lekitima;Mopeli Fabiane

Frequent Co-Authors

Malik Maaza
Malik Maaza University of South Africa
Kenneth I. Ozoemena
Kenneth I. Ozoemena University of the Witwatersrand
Mohamed Chaker
Mohamed Chaker Institut National de la Recherche Scientifique
Xiaohua Xia
Xiaohua Xia University of Pretoria
Andrew Forbes
Andrew Forbes Monash University
Zachary Fisk
Zachary Fisk University of California, Irvine
Gabriel Aeppli
Gabriel Aeppli Paul Scherrer Institute
Aleksandar Matic
Aleksandar Matic Chalmers University of Technology
Jianwei Ren
Jianwei Ren Inner Mongolia University

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