Gregory N. Okolo

1.2k total citations · 2 hit papers
13 papers, 1.1k citations indexed

About

Gregory N. Okolo is a scholar working on Biomedical Engineering, Ocean Engineering and Geochemistry and Petrology. According to data from OpenAlex, Gregory N. Okolo has authored 13 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Biomedical Engineering, 6 papers in Ocean Engineering and 5 papers in Geochemistry and Petrology. Recurrent topics in Gregory N. Okolo's work include Thermochemical Biomass Conversion Processes (10 papers), Coal Properties and Utilization (6 papers) and Coal and Its By-products (5 papers). Gregory N. Okolo is often cited by papers focused on Thermochemical Biomass Conversion Processes (10 papers), Coal Properties and Utilization (6 papers) and Coal and Its By-products (5 papers). Gregory N. Okolo collaborates with scholars based in South Africa, Australia and United States. Gregory N. Okolo's co-authors include Hein W.J.P. Neomagus, Raymond C. Everson, Richard Sakurovs, John R. Bunt, Jonathan P. Mathews, Christien A. Strydom, Lihle D. Mafu, Daniel van Niekerk, G. Domazetis and Mihaela Grigore and has published in prestigious journals such as SHILAP Revista de lepidopterología, Bioresource Technology and Carbon.

In The Last Decade

Gregory N. Okolo

12 papers receiving 1.1k citations

Hit Papers

Comparing the porosity and surface areas of coal as measu... 2014 2026 2018 2022 2014 2015 100 200 300
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Comparing the porosity and surface areas of coal as measured by gas adsorption, mercury intrusion and SAXS techniques
    2014 396 citations Gregory N. Okolo, Raymond C. Everson et al. Fuel profile →
  2. Chemical–structural properties of South African bituminous coals: Insights from wide angle XRD–carbon fraction analysis, ATR–FTIR, solid state 13 C NMR, and HRTEM techniques
    2015 306 citations Gregory N. Okolo, Hein W.J.P. Neomagus et al. Fuel profile →

Peers

Gregory N. Okolo
Qiongqiong He China
Jingyu Jiang China
Jianhua Xiang China
Junqing Meng China
Shang Li China
Yibo Tang China
Fengkui Yin Australia
JoséV. Ibarra Spain
Xiaofang You China
Yi Du China
Qiongqiong He China
Gregory N. Okolo
Citations per year, relative to Gregory N. Okolo Gregory N. Okolo (= 1×) peers Qiongqiong He

Countries citing papers authored by Gregory N. Okolo

Since Specialization
Citations

This map shows the geographic impact of Gregory N. Okolo's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Gregory N. Okolo with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Gregory N. Okolo more than expected).

Fields of papers citing papers by Gregory N. Okolo

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Gregory N. Okolo. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Gregory N. Okolo. The network helps show where Gregory N. Okolo may publish in the future.

Co-authorship network of co-authors of Gregory N. Okolo

This figure shows the co-authorship network connecting the top 25 collaborators of Gregory N. Okolo. A scholar is included among the top collaborators of Gregory N. Okolo based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Gregory N. Okolo. Gregory N. Okolo is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

13 of 13 papers shown
1.
2.
Strydom, Christien A., et al.. (2021). Co-gasification reactivity and kinetics of municipality and coffee waste residue hydrochar and South African density separated coal blends. Bioresource Technology Reports. 16. 100877–100877. 6 indexed citations
3.
Okolo, Gregory N., Raymond C. Everson, Hein W.J.P. Neomagus, et al.. (2019). Dataset on the carbon dioxide, methane and nitrogen high-pressure sorption properties of South African bituminous coals. SHILAP Revista de lepidopterología. 25. 104248–104248. 13 indexed citations
4.
Okolo, Gregory N., Raymond C. Everson, Hein W.J.P. Neomagus, et al.. (2019). The carbon dioxide, methane and nitrogen high-pressure sorption properties of South African bituminous coals. International Journal of Coal Geology. 209. 40–53. 28 indexed citations
5.
6.
Strydom, Christien A., et al.. (2018). The catalytic effect of Benfield waste salt on CO2 gasification of a typical South African Highveld coal. Journal of Thermal Analysis and Calorimetry. 135(5). 2723–2732. 13 indexed citations
7.
Mafu, Lihle D., Hein W.J.P. Neomagus, Raymond C. Everson, et al.. (2017). Chemical and structural characterization of char development during lignocellulosic biomass pyrolysis. Bioresource Technology. 243. 941–948. 44 indexed citations
8.
Mafu, Lihle D., Hein W.J.P. Neomagus, Raymond C. Everson, et al.. (2017). The carbon dioxide gasification characteristics of biomass char samples and their effect on coal gasification reactivity during co-gasification. Bioresource Technology. 258. 70–78. 95 indexed citations
9.
Okolo, Gregory N., Hein W.J.P. Neomagus, Raymond C. Everson, et al.. (2015). Chemical–structural properties of South African bituminous coals: Insights from wide angle XRD–carbon fraction analysis, ATR–FTIR, solid state 13 C NMR, and HRTEM techniques. Fuel. 158. 779–792. 306 indexed citations breakdown →
10.
Everson, Raymond C., et al.. (2015). The characterisation of slow-heated inertinite- and vitrinite-rich coals from the South African coalfields. Fuel. 158. 591–601. 34 indexed citations
11.
Everson, Raymond C., G. Domazetis, Hein W.J.P. Neomagus, et al.. (2015). Density functional theory molecular modelling and experimental particle kinetics for CO2–char gasification. Carbon. 93. 295–314. 61 indexed citations
12.
Okolo, Gregory N., et al.. (2014). Comparing the porosity and surface areas of coal as measured by gas adsorption, mercury intrusion and SAXS techniques. Fuel. 141. 293–304. 396 indexed citations breakdown →
13.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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