Hambali Umar Hambali

1.6k total citations · 1 hit paper
40 papers, 1.4k citations indexed

About

Hambali Umar Hambali is a scholar working on Materials Chemistry, Catalysis and Mechanical Engineering. According to data from OpenAlex, Hambali Umar Hambali has authored 40 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Materials Chemistry, 24 papers in Catalysis and 9 papers in Mechanical Engineering. Recurrent topics in Hambali Umar Hambali's work include Catalytic Processes in Materials Science (23 papers), Catalysts for Methane Reforming (20 papers) and Catalysis and Oxidation Reactions (18 papers). Hambali Umar Hambali is often cited by papers focused on Catalytic Processes in Materials Science (23 papers), Catalysts for Methane Reforming (20 papers) and Catalysis and Oxidation Reactions (18 papers). Hambali Umar Hambali collaborates with scholars based in Malaysia, Nigeria and Saudi Arabia. Hambali Umar Hambali's co-authors include Aishah Abdul Jalil, A.A. Abdulrasheed, Yahya Gambo, Maryam Ibrahim, M.Y.S. Hamid, Tan Ji Siang, Ijaz Hussain, Dai‐Viet N. Vo, A.H.K. Owgi and Walid Nabgan and has published in prestigious journals such as SHILAP Revista de lepidopterología, Renewable and Sustainable Energy Reviews and International Journal of Hydrogen Energy.

In The Last Decade

Hambali Umar Hambali

40 papers receiving 1.3k citations

Hit Papers

align trajectories

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.

A review on catalyst development for dry reforming of methane to syngas: Recent advances

2019 588 citations A.A. Abdulrasheed, Aishah Abdul Jalil et al. Renewable and Sustainable Energy Reviews profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Hambali Umar Hambali Malaysia	17	1.1k	996	193	180	146	40	1.4k
Maryam Ibrahim Malaysia	13	837 0.8×	748 0.8×	372 1.9×	261 1.4×	136 0.9×	20	1.2k
Nissrine El Hassan Lebanon	21	1.4k 1.3×	1.1k 1.1×	294 1.5×	202 1.1×	210 1.4×	42	1.7k
Tan Ji Siang Malaysia	25	1.3k 1.2×	1.2k 1.2×	286 1.5×	182 1.0×	239 1.6×	56	1.6k
Ji Hwan Song South Korea	23	861 0.8×	698 0.7×	408 2.1×	303 1.7×	132 0.9×	54	1.2k
Jordi Guilera Spain	18	508 0.5×	573 0.6×	243 1.3×	168 0.9×	150 1.0×	39	914
N. Mota Spain	19	960 0.9×	815 0.8×	308 1.6×	188 1.0×	315 2.2×	28	1.3k
Ricardo Reis Soares Brazil	17	691 0.6×	715 0.7×	534 2.8×	701 3.9×	136 0.9×	30	1.3k
Myoung‐Jae Choi South Korea	18	713 0.7×	922 0.9×	327 1.7×	343 1.9×	183 1.3×	31	1.3k

Countries citing papers authored by Hambali Umar Hambali

Since Specialization

Citations

This map shows the geographic impact of Hambali Umar Hambali'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 Hambali Umar Hambali with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hambali Umar Hambali more than expected).

Fields of papers citing papers by Hambali Umar Hambali

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hambali Umar Hambali. 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 Hambali Umar Hambali. The network helps show where Hambali Umar Hambali may publish in the future.

Co-authorship network of co-authors of Hambali Umar Hambali

This figure shows the co-authorship network connecting the top 25 collaborators of Hambali Umar Hambali. A scholar is included among the top collaborators of Hambali Umar Hambali 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 Hambali Umar Hambali. Hambali Umar Hambali is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Emenike, Ebuka Chizitere, et al.. (2025). Dual-phase valorization of chicken feathers and Delonix regia biomass into biochar and pozzolan using a top-lit updraft gasifier. Biofuels. 16(10). 1205–1217. 5 indexed citations

Adeniyi, Adewale George, Ebuka Chizitere Emenike, Omar H. Abd‐Elkader, et al.. (2025). Production and characterization of sunflower stalk biochar and ash: a study on batch versus semi-batch gasifier systems. International Journal of Chemical Reactor Engineering. 23(5). 577–595. 3 indexed citations

Hambali, Hambali Umar, et al.. (2025). Evaluation of the structural and crystalline properties of hybrid biochar derived from co-carbonized polyethylene and soybean pod waste. Biofuels. 17(3). 461–477. 4 indexed citations

Iwuozor, Kingsley O., Abdelrahman O. Ezzat, Ebuka Chizitere Emenike, et al.. (2025). Repurposing Spent Sugarcane Bagasse Biosorbent from Waste Lubricating Oil Spill into Biochar. Sugar Tech. 27(4). 1290–1299. 5 indexed citations

Hambali, Hambali Umar, et al.. (2025). Biomass-based Sorbents for Oil spill Clean-up: A review. 9(1). 1–15. 3 indexed citations

Hambali, Hambali Umar, et al.. (2024). A review on CO<sub>2</sub> capture over novel adsorbents: Progress in robust zeolite adsorbent development. Nigerian Journal of Technological Development. 21(1). 94–111. 5 indexed citations

Alhassan, M., Aishah Abdul Jalil, M.B. Bahari, et al.. (2024). Exploring the superior mild temperature performance of nickel-infused fibrous titania silica for enhanced dry reforming of methane. International Journal of Hydrogen Energy. 139. 971–984. 3 indexed citations

Abdulkareem, Sulyman A., et al.. (2024). Characterization of groundnut shell biochar produced with different stainless steel combustion compartment volumes. Biofuels Bioproducts and Biorefining. 18(5). 1598–1612. 10 indexed citations

Owgi, A.H.K., Aishah Abdul Jalil, M.A.A. Aziz, et al.. (2023). Effect of promoters (Ce, Sr, Cs, and Sm) on the activity and coke formation of FSA support Ni in the dry reforming of methane. Fuel. 340. 127592–127592. 31 indexed citations

10.

Oyehan, Tajudeen A., Babatunde Abiodun Salami, A.A. Abdulrasheed, et al.. (2023). MXenes: Synthesis, properties, and applications for sustainable energy and environment. Applied Materials Today. 35. 101993–101993. 64 indexed citations

11.

Owgi, A.H.K., Aishah Abdul Jalil, Ijaz Hussain, Hambali Umar Hambali, & Walid Nabgan. (2022). Enhancing resistance of carbon deposition and reaction stability over nickel loaded fibrous silica-alumina (Ni/FSA) for dry reforming of methane. International Journal of Hydrogen Energy. 47(100). 42250–42265. 36 indexed citations

12.

Hambali, Hambali Umar, et al.. (2022). Zeolite and clay based catalysts for CO2 reforming of methane to syngas: A review. International Journal of Hydrogen Energy. 47(72). 30759–30787. 47 indexed citations

13.

Hambali, Hambali Umar, Aishah Abdul Jalil, A.A. Abdulrasheed, et al.. (2020). Fibrous spherical Ni‐M/ZSM‐5 (M: Mg, Ca, Ta, Ga) catalysts for methane dry reforming: The interplay between surface acidity‐basicity and coking resistance. International Journal of Energy Research. 44(7). 5696–5712. 63 indexed citations

14.

Nyakuma, Bemgba Bevan, Syie Luing Wong, Hasan Mohd Faizal, et al.. (2020). Carbon dioxide torrefaction of oil palm empty fruit bunches pellets: characterisation and optimisation by response surface methodology. Biomass Conversion and Biorefinery. 12(12). 5881–5900. 26 indexed citations

15.

Abdulrasheed, A.A., Aishah Abdul Jalil, Tan Ji Siang, & Hambali Umar Hambali. (2020). Thermodynamic sensitivity analysis of CO₂ reforming of methane based on equilibrium predictions. IOP Conference Series Materials Science and Engineering. 808(1). 12001–12001. 10 indexed citations

16.

Hussain, Ijaz, Aishah Abdul Jalil, N.S. Hassan, Hambali Umar Hambali, & Nurfatehah Wahyuny Che Jusoh. (2020). Fabrication and characterization of highly active fibrous silica-mordenite (FS@SiO2-MOR) cockscomb shaped catalyst for enhanced CO2 methanation. Chemical Engineering Science. 228. 115978–115978. 48 indexed citations

17.

Nyakuma, Bemgba Bevan, Syie Luing Wong, Olagoke Oladokun, et al.. (2020). Review of the fuel properties, characterisation techniques, and pre-treatment technologies for oil palm empty fruit bunches. Biomass Conversion and Biorefinery. 13(1). 471–497. 26 indexed citations

18.

Hambali, Hambali Umar, Aishah Abdul Jalil, S. Triwahyono, et al.. (2019). Unique structure of fibrous ZSM-5 catalyst expedited prolonged hydrogen atom restoration for selective production of propylene from methanol. International Journal of Hydrogen Energy. 46(48). 24652–24665. 35 indexed citations

19.

Abdulrasheed, A.A., Aishah Abdul Jalil, Yahya Gambo, et al.. (2019). A review on catalyst development for dry reforming of methane to syngas: Recent advances. Renewable and Sustainable Energy Reviews. 108. 175–193. 588 indexed citations breakdown →

20.

Azami, M.S., et al.. (2019). A Contemporary Assessment on Composite Titania onto Graphitic Carbon Nitride-Based Catalyst as Photocatalyst. 2(1). 3 indexed citations

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.

Explore authors with similar magnitude of impact