| Nafion degradation mechanisms in proton exchange membrane fuel cell (PEMFC) system: A review PC Okonkwo, IB Belgacem, W Emori, PC Uzoma International journal of hydrogen energy 46 (55), 27956-27973, 2021 | 374* | 2021 |
| A review of gas diffusion layer properties and water management in proton exchange membrane fuel cell system PC Okonkwo, C Otor International Journal of Energy Research 45 (3), 3780-3800, 2021 | 159 | 2021 |
| Optimal sizing of photovoltaic systems based green hydrogen refueling stations case study Oman PC Okonkwo, IB Belgacem, M Zghaibeh, I Tlili International Journal of Hydrogen Energy 47 (75), 31964-31973, 2022 | 104 | 2022 |
| A focused review of the hydrogen storage tank embrittlement mechanism process PC Okonkwo, IB Belgacem, IB Mansir, M Aliyu, W Emori, PC Uzoma, ... International Journal of Hydrogen Energy 48 (35), 12935-12948, 2023 | 98 | 2023 |
| The effect of sliding speed on the wear of steel–tool steel pairs PC Okonkwo, G Kelly, BF Rolfe, MP Pereira Tribology International 97, 218-227, 2016 | 97 | 2016 |
| The effect of temperature on sliding wear of steel-tool steel pairs PC Okonkwo, G Kelly, BF Rolfe, MP Pereira Wear 282, 22-30, 2012 | 77 | 2012 |
| Techno-economic analysis of photovoltaic-hydrogen refueling station case study: A transport company Tunis-Tunisia PC Okonkwo, S Farhani, IB Belgacem, M Zghaibeh, IB Mansir, F Bacha International Journal of Hydrogen Energy 47 (58), 24523-24532, 2022 | 76 | 2022 |
| Renewable energy resources and workforce case study Saudi Arabia: review and recommendations EM Barhoumi, PC Okonkwo, M Zghaibeh, IB Belgacem, TA Alkanhal, ... Journal of Thermal Analysis and Calorimetry 141, 221-230, 2020 | 76 | 2020 |
| Corrosion inhibition of API X120 steel in a highly aggressive medium using stearamidopropyl dimethylamine AB Radwan, MH Sliem, PC Okonkwo, MF Shibl, AM Abdullah Journal of Molecular Liquids 236, 220-231, 2017 | 69 | 2017 |
| Analytical model for a techno-economic assessment of green hydrogen production in photovoltaic power station case study Salalah city-Oman M Zghaibeh, PC Okonkwo, IB Belgacem, WH Beitelmal, IB Mansir International Journal of Hydrogen Energy 47 (31), 14171-14179, 2022 | 68 | 2022 |
| Erosion-corrosion in oil and gas industry: a review PC Okonkwo, AMA Mohamed Int. J. Metall. Mater. Sci. Eng 4 (3), 7-28, 2014 | 63 | 2014 |
| Techno-economic optimization of wind energy based hydrogen refueling station case study Salalah city Oman MS Salhi, PC Okonkwo, IB Belgacem, S Farhani, M Zghaibeh, F Bacha International Journal of Hydrogen Energy 48 (26), 9529-9539, 2023 | 60 | 2023 |
| Utilization of renewable hybrid energy for refueling station in Al-Kharj, Saudi Arabia PC Okonkwo, IB Mansir, W Emori, AB Radwan, RA Shakoor, PC Uzoma, ... International Journal of Hydrogen Energy 47 (53), 22273-22284, 2022 | 53 | 2022 |
| Electrospun highly corrosion-resistant polystyrene–nickel oxide superhydrophobic nanocomposite coating A Bahgat Radwan, CA Mannah, MH Sliem, NHS Al-Qahtani, PC Okonkwo, ... Journal of Applied Electrochemistry 51 (11), 1605-1618, 2021 | 48 | 2021 |
| Enhancement of mechanical and corrosion resistance properties of electrodeposited Ni–P–TiC composite coatings O Fayyaz, A Khan, RA Shakoor, A Hasan, MM Yusuf, MF Montemor, ... Scientific reports 11 (1), 5327, 2021 | 47 | 2021 |
| Application of biopolymer composites in super capacitor PC Okonkwo, E Collins, E Okonkwo Biopolymer composites in electronics, 487-503, 2017 | 46 | 2017 |
| Effect of temperature and fluid speed on the corrosion behavior of carbon steel pipeline in Qatari oilfield produced water A Benamor, AG Talkhan, M Nasser, I Hussein, PC Okonkwo Journal of Electroanalytical Chemistry 808, 218-227, 2018 | 41 | 2018 |
| Economic evaluation of hybrid electrical systems for rural electrification: A case study of a rural community in Nigeria PC Okonkwo, EM Barhoumi, W Emori, MI Shammas, PC Uzoma, ... International Journal of Green Energy 19 (10), 1059-1071, 2022 | 40 | 2022 |
| Batch adsorption isotherm models applied in single and multicomponent adsorption systems–a review BO Isiuku, PC Okonkwo, CD Emeagwara Journal of Dispersion Science and Technology 42 (12), 1879-1897, 2021 | 38 | 2021 |
| Techno-economic sizing of renewable energy power system case study Dhofar Region-Oman EM Barhoumi, S Farhani, PC Okonkwo, M Zghaibeh, F Bacha International Journal of Green Energy 18 (8), 856-865, 2021 | 38 | 2021 |
