Nisar Ullah

5.0k total citations · 1 hit paper
157 papers, 4.0k citations indexed

About

Nisar Ullah is a scholar working on Organic Chemistry, Molecular Biology and Materials Chemistry. According to data from OpenAlex, Nisar Ullah has authored 157 papers receiving a total of 4.0k indexed citations (citations by other indexed papers that have themselves been cited), including 67 papers in Organic Chemistry, 46 papers in Molecular Biology and 29 papers in Materials Chemistry. Recurrent topics in Nisar Ullah's work include Adsorption and biosorption for pollutant removal (19 papers), Advanced Photocatalysis Techniques (17 papers) and Synthesis and biological activity (14 papers). Nisar Ullah is often cited by papers focused on Adsorption and biosorption for pollutant removal (19 papers), Advanced Photocatalysis Techniques (17 papers) and Synthesis and biological activity (14 papers). Nisar Ullah collaborates with scholars based in Saudi Arabia, Pakistan and China. Nisar Ullah's co-authors include Muhammad Mansha, Abdul Waheed, Ibrahim Khan, Tauqir Ahmad, Yixin Lü, Ahsanulhaq Qurashi, Muhammad Ashraf, Weijun Yao, Muhammad Nawaz Tahir and Izzat Wajih Kazi and has published in prestigious journals such as Chemical Reviews, Journal of the American Chemical Society and Chemical Society Reviews.

In The Last Decade

Nisar Ullah

150 papers receiving 4.0k 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.

Photoreforming of Waste Polymers for Sustainable Hydrogen Fuel and Chemicals Feedstock: Waste to Energy

2023 158 citations Muhammad Ashraf, Nisar Ullah et al. Chemical Reviews profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Nisar Ullah Saudi Arabia	34	1.5k	981	678	640	533	157	4.0k
Sophie Fourmentin France	45	1.3k 0.9×	1.5k 1.6×	821 1.2×	428 0.7×	474 0.9×	164	6.4k
Ragini Gupta India	29	685 0.4×	818 0.8×	409 0.6×	563 0.9×	226 0.4×	143	3.0k
Hou Chen China	34	1.9k 1.2×	846 0.9×	385 0.6×	347 0.5×	339 0.6×	136	4.0k
Dušan Mijin Serbia	29	774 0.5×	574 0.6×	614 0.9×	494 0.8×	488 0.9×	224	2.9k
Ali Daneshfar Iran	38	992 0.6×	908 0.9×	450 0.7×	576 0.9×	239 0.4×	103	4.7k
Bernardo A. Frontana‐Uribe Mexico	25	1.3k 0.9×	609 0.6×	321 0.5×	1.2k 1.9×	675 1.3×	106	4.3k
Giuseppe Vasapollo Italy	39	1.7k 1.1×	1.3k 1.3×	593 0.9×	497 0.8×	960 1.8×	154	5.8k
Komal Rızwan Pakistan	32	696 0.4×	954 1.0×	477 0.7×	422 0.7×	488 0.9×	100	3.2k
Nashwa M. El‐Metwaly Saudi Arabia	43	3.5k 2.3×	1.8k 1.8×	416 0.6×	491 0.8×	383 0.7×	330	6.3k
Saleh A. Ahmed Saudi Arabia	36	2.0k 1.3×	2.0k 2.0×	762 1.1×	570 0.9×	654 1.2×	309	5.1k

Countries citing papers authored by Nisar Ullah

Since Specialization

Citations

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

Fields of papers citing papers by Nisar Ullah

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Nisar Ullah

This figure shows the co-authorship network connecting the top 25 collaborators of Nisar Ullah. A scholar is included among the top collaborators of Nisar Ullah 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 Nisar Ullah. Nisar Ullah 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

1.

Firmansyah, Mochamad Lutfi, Safwat Abdel‐Azeim, & Nisar Ullah. (2024). Efficient adsorption of methyl red, methyl orange and bromothymol blue by polyamine resin: Role of linearity and size of carboxylate in enhanced encapsulation and molecular matching. Journal of Molecular Liquids. 411. 125792–125792. 10 indexed citations

2.

Ahmad, Tauqir, Safwat Abdel‐Azeim, Sardaraz Khan, & Nisar Ullah. (2024). Dinitrophenyl and NBD platforms based fluorescent sensors for nanomolar detection of zinc ions: Synthesis, zinc ions sensing and DFT studies. Inorganic Chemistry Communications. 170. 113151–113151. 4 indexed citations

3.

Guo, Yixuan, et al.. (2024). Rapid Detection of Acids and Esters in Chinese Liquor by Fourier Transform Infrared Spectroscopy with Difference Spectroscopy. Food Analytical Methods. 17(9). 1373–1382. 1 indexed citations

4.

Saleem, Faiza, Khalid Mohammed Khan, Musa Özil, et al.. (2023). Regioselective syntheses of 2-oxopyridine carbonitrile derivatives and evaluation for antihyperglycemic and antioxidant potential. International Journal of Biological Macromolecules. 241. 124589–124589. 13 indexed citations

5.

Ahmad, Tauqir, Syed Shaheen Shah, Sardaraz Khan, et al.. (2023). Preparation and electrochemical performance of Convolvulus arvensis-derived activated carbon for symmetric supercapacitors. Materials Science and Engineering B. 292. 116430–116430. 33 indexed citations

6.

Ahmad, Tauqir, Mohammad Saood Manzar, Sardaraz Khan, et al.. (2023). Enhanced adsorption of bisphenol-A from water through the application of isocyanurate based hyper crosslinked resin. Journal of Molecular Liquids. 395. 123861–123861. 25 indexed citations

7.

Ashraf, Muhammad, Ibrahim Khan, Nisar Ullah, et al.. (2023). Bandgap Engineering of Melon using Highly Reduced Graphene Oxide for Enhanced Photoelectrochemical Hydrogen Evolution. Advanced Materials. 35(47). e2301342–e2301342. 24 indexed citations

8.

Ashraf, Muhammad, Nisar Ullah, Ibrahim Khan, et al.. (2023). Photoreforming of Waste Polymers for Sustainable Hydrogen Fuel and Chemicals Feedstock: Waste to Energy. Chemical Reviews. 123(8). 4443–4509. 158 indexed citations breakdown →

9.

Manzar, Mohammad Saood, Tauqir Ahmad, Mukarram Zubair, et al.. (2023). Comparative adsorption of tetracycline onto unmodified and NaOH-modified silicomanganese fumes: Kinetic and process modeling. Process Safety and Environmental Protection. 192. 521–533. 16 indexed citations

10.

Ashraf, Muhammad, Nisar Ullah, Fazal Raziq, et al.. (2023). Carbon nitride (C3N3) decorated with non-noble metal Ni2P Co-catalyst based nanocomposites for photocatalytic water splitting. Electrochimica Acta. 470. 143296–143296. 9 indexed citations

11.

Li, Rui, et al.. (2022). Synthesis of Axially Chiral CF₃‐Substituted 2‐Arylpyrroles by Sequential Phosphine‐Catalyzed Asymmetric [3+2] Annulation and Oxidative Central‐to‐Axial Chirality Transfer. Angewandte Chemie. 134(47). 3 indexed citations

12.

Ahmad, Tauqir, Mohammad Saood Manzar, Saif Ullah Khan, et al.. (2022). Synthesis and Adsorptive Performance of a Novel Triazine Core-Containing Resin for the Ultrahigh Removal of Malachite Green from Water. Arabian Journal for Science and Engineering. 48(7). 8571–8584. 29 indexed citations

13.

Li, Rui, et al.. (2022). Synthesis of Axially Chiral CF₃‐Substituted 2‐Arylpyrroles by Sequential Phosphine‐Catalyzed Asymmetric [3+2] Annulation and Oxidative Central‐to‐Axial Chirality Transfer. Angewandte Chemie International Edition. 61(47). e202209494–e202209494. 29 indexed citations

14.

Popoola, Saheed A., Abdulmujeeb T. Onawole, Nisar Ullah, & Abdulaziz A. Al‐Saadi. (2021). Structural and energetic effect of the intramolecular hydrogen bonding in 4,6-dihaloresorcinols: ab initio calculation, vibrational spectroscopy, and molecular docking studies. Structural Chemistry. 33(1). 57–69. 5 indexed citations

15.

Ashraf, Muhammad, Syed Shaheen Shah, Ibrahim Khan, et al.. (2021). A High‐Performance Asymmetric Supercapacitor Based on Tungsten Oxide Nanoplates and Highly Reduced Graphene Oxide Electrodes. Chemistry - A European Journal. 27(23). 6973–6984. 72 indexed citations

16.

Zhang, Jing, Wai‐Lun Chan, Ligong Chen, Nisar Ullah, & Yixin Lü. (2019). Creation of bispiro[pyrazolone-3,3′-oxindoles] via a phosphine-catalyzed enantioselective [3 + 2] annulation of the Morita–Baylis–Hillman carbonates with pyrazoloneyldiene oxindoles. Organic Chemistry Frontiers. 6(13). 2210–2214. 46 indexed citations

17.

Yao, Weijun, Zhaoyuan Yu, Huanzhen Ni, et al.. (2017). Chiral phosphine-mediated intramolecular [3 + 2] annulation: enhanced enantioselectivity by achiral Brønsted acid. Chemical Science. 8(7). 5196–5200. 47 indexed citations

18.

Ni, Huanzhen, Xiaodong Tang, Wenrui Zheng, et al.. (2017). Enantioselective Phosphine‐Catalyzed Formal [4+4] Annulation of α,β‐Unsaturated Imines and Allene Ketones: Construction of Eight‐Membered Rings. Angewandte Chemie International Edition. 56(45). 14222–14226. 195 indexed citations

19.

Ni, Huanzhen, Xiaodong Tang, Wenrui Zheng, et al.. (2017). Enantioselective Phosphine‐Catalyzed Formal [4+4] Annulation of α,β‐Unsaturated Imines and Allene Ketones: Construction of Eight‐Membered Rings. Angewandte Chemie. 129(45). 14410–14414. 56 indexed citations

20.

Ni, Huanzhen, Zhaoyuan Yu, Weijun Yao, et al.. (2017). Catalyst-controlled regioselectivity in phosphine catalysis: the synthesis of spirocyclic benzofuranones via regiodivergent [3 + 2] annulations of aurones and an allenoate. Chemical Science. 8(8). 5699–5704. 78 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