S. M. Khalifa

408 total citations
42 papers, 352 citations indexed

About

S. M. Khalifa is a scholar working on Inorganic Chemistry, Mechanical Engineering and Industrial and Manufacturing Engineering. According to data from OpenAlex, S. M. Khalifa has authored 42 papers receiving a total of 352 indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Inorganic Chemistry, 20 papers in Mechanical Engineering and 17 papers in Industrial and Manufacturing Engineering. Recurrent topics in S. M. Khalifa's work include Radioactive element chemistry and processing (29 papers), Extraction and Separation Processes (20 papers) and Chemical Synthesis and Characterization (17 papers). S. M. Khalifa is often cited by papers focused on Radioactive element chemistry and processing (29 papers), Extraction and Separation Processes (20 papers) and Chemical Synthesis and Characterization (17 papers). S. M. Khalifa collaborates with scholars based in Egypt, Kuwait and United States. S. M. Khalifa's co-authors include H. F. Aly, E. M. El Afifi, M.A. Hilal, A. A. Helal, J.D. Navratil, J. A. Daoud, Norazlinaliza Salim, Hisham M. Aly, N. El-Said and Mohammad I. Ahmad and has published in prestigious journals such as Talanta, Berichte der Bunsengesellschaft für physikalische Chemie and Radiation Measurements.

In The Last Decade

S. M. Khalifa

39 papers receiving 318 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
S. M. Khalifa Egypt 9 177 131 99 92 81 42 352
Sunao Miyashita Japan 9 129 0.7× 89 0.7× 96 1.0× 30 0.3× 72 0.9× 22 305
Sandra K. Fiskum United States 11 225 1.3× 145 1.1× 42 0.4× 39 0.4× 170 2.1× 26 383
Ε. I. Shabana Egypt 11 133 0.8× 79 0.6× 131 1.3× 53 0.6× 90 1.1× 42 354
F. Macášek Slovakia 12 310 1.8× 108 0.8× 33 0.3× 91 1.0× 180 2.2× 65 548
R. Blackburn United Kingdom 10 86 0.5× 109 0.8× 75 0.8× 20 0.2× 52 0.6× 32 318
Ľubomír Mátel Slovakia 13 331 1.9× 94 0.7× 157 1.6× 25 0.3× 126 1.6× 59 593
Yanqin Ji China 12 170 1.0× 112 0.9× 75 0.8× 37 0.4× 111 1.4× 35 380
T. J. Tranter United States 10 331 1.9× 188 1.4× 51 0.5× 51 0.6× 293 3.6× 26 416
Judah I. Friese United States 12 297 1.7× 245 1.9× 108 1.1× 18 0.2× 55 0.7× 36 503
Steffen Happel Germany 13 189 1.1× 73 0.6× 79 0.8× 42 0.5× 99 1.2× 36 373

Countries citing papers authored by S. M. Khalifa

Since Specialization
Citations

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

Fields of papers citing papers by S. M. Khalifa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by S. M. Khalifa. 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 S. M. Khalifa. The network helps show where S. M. Khalifa may publish in the future.

Co-authorship network of co-authors of S. M. Khalifa

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

All Works

20 of 20 papers shown
1.
Helal, A. A., et al.. (2006). Interaction of pesticides with humic compounds and their metal complexes. Radiochemistry. 48(4). 419–425. 22 indexed citations
2.
Helal, A. A., Norazlinaliza Salim, & S. M. Khalifa. (2006). Effect of some environmental ligands on the sorption of radionuclidesby peat humin. Journal of Radioanalytical and Nuclear Chemistry. 267(2). 369–375. 6 indexed citations
3.
Helal, A. A., H. F. Aly, S. M. Khalifa, & Mohammad I. Ahmad. (2005). Sorption of radiocobalt on pottery. Radiochimica Acta. 93(8). 471–476. 7 indexed citations
4.
Helal, A. A., et al.. (2003). Potential of pottery materials in manufacturing radioactive waste containers. Applied Radiation and Isotopes. 59(1). 11–16. 5 indexed citations
5.
Helal, A. A., et al.. (1998). Effect of some metal ions on the complexation of strontium with humic acid. Journal of Radioanalytical and Nuclear Chemistry. 227(1-2). 49–53. 8 indexed citations
6.
7.
Daoud, J. A., S. M. Khalifa, Ε. H. Borai, & H. F. Aly. (1993). Equilibrium and Extraction Kinetics of Americium(III) by Thenoyltrifluoroacetone and Triphenylarsine Oxide Mixture in Chloroform from Perchlorate Medium. Radiochimica Acta. 61(2). 77–80. 6 indexed citations
8.
Khalifa, S. M., et al.. (1993). EXTRACTION OF Pm(III) AND Gd(III) BY 8-HYDROXYQUINOLINE AND SOHE RELATED AMINES IN CHLOROFORM FROM NITRATE MEDIUM. Solvent Extraction and Ion Exchange. 11(5). 861–876. 1 indexed citations
9.
Khalifa, S. M., et al.. (1992). Synergic extraction of trivalent gadolinium, europium and americium radionuclides by 15-crown-5 or 18-crown-6 mixed with thenoyltrifluoroacetone from perchlorate medium. Journal of Radioanalytical and Nuclear Chemistry. 159(2). 353–361. 13 indexed citations
10.
Khalifa, S. M., et al.. (1990). Sorption of Europium (III), Cobalt (II) and Cesium (I) by Fresh Water Sediment Fractions Part 2: Effect of Some Environmental Ligands. Isotopenpraxis Isotopes in Environmental and Health Studies. 26(11). 550–554. 1 indexed citations
11.
Khalifa, S. M., H. F. Aly, & J.D. Navratil. (1989). Ion-pair extraction of Co(II) by crown ethers from perchlorate medium. Talanta. 36(3). 406–408. 6 indexed citations
12.
Khalifa, S. M., et al.. (1989). Sorption of Europium (III), Cobalt (II) and Cesium (I) by Fresh Water Sediment Fractions. Isotopenpraxis Isotopes in Environmental and Health Studies. 25(8). 335–340. 4 indexed citations
13.
Khalifa, S. M., et al.. (1988). Extraction of some lanthanides by 12-crown-4 and 15-crown-5 from perchlorate media as ion pairs. Journal of Radioanalytical and Nuclear Chemistry. 125(2). 373–379. 6 indexed citations
14.
Khalifa, S. M., et al.. (1987). THERMODYNAMICS OF COBALT(II) EXTRACTION BYTHENOYLTRIFLOUROACETONE AND DIBENZO-18-CROWN-6 IN NITROBENZENE-TOLUENE MIXTURES. Solvent Extraction and Ion Exchange. 5(6). 1057–1073. 10 indexed citations
15.
Khalifa, S. M., et al.. (1985). EFFECT OF SELECTED β-DIKETONES ON THE SYNERGICEXTRACTION OF COBALT(II) BY TRIPHENYL-PHOSPHINE OXIDE IN BENZENE. Solvent Extraction and Ion Exchange. 3(4). 473–484. 1 indexed citations
16.
Aly, H. F., et al.. (1985). EXTRACTION OF SOME LANTHANIDES AND ACTINIDES BY 15-CROWN-5 THENOYLTRIFLUOROACETONE MIXTURE IN CHLOROFORM. Solvent Extraction and Ion Exchange. 3(5). 623–636. 39 indexed citations
17.
Khalifa, S. M., et al.. (1984). Mixed ligand extraction of cobalt(II) by thenoyltrifluoroacetone and triphenylphosphine or triphenylarsine oxides in chloroform. Journal of Radioanalytical and Nuclear Chemistry. 82(1). 75–79. 3 indexed citations
18.
Khalifa, S. M., et al.. (1982). Extraction chromatography of some metal radiotracers using adogen-381 HCl and KSCN systems. Chromatographia. 15(5). 315–317. 2 indexed citations
19.
Aly, H. F., et al.. (1981). Temperature effects on the extraxtion of divalent cobalt, zinc, cadmium and mercury by salicylaldoxime in carbon tetrachloride. Journal of Radioanalytical and Nuclear Chemistry. 63(2). 295–300. 3 indexed citations
20.
Khalifa, S. M., et al.. (1981). Extraction of neodymium and europium by bis-(2-ethylhexyl) phosphoric acid from aqueous diamine solutions. Journal of Radioanalytical and Nuclear Chemistry. 67(2). 321–328.

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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