John Nunan

1.4k total citations
41 papers, 1.1k citations indexed

About

John Nunan is a scholar working on Materials Chemistry, Catalysis and Inorganic Chemistry. According to data from OpenAlex, John Nunan has authored 41 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Materials Chemistry, 22 papers in Catalysis and 12 papers in Inorganic Chemistry. Recurrent topics in John Nunan's work include Catalytic Processes in Materials Science (31 papers), Catalysis and Oxidation Reactions (19 papers) and Catalysis and Hydrodesulfurization Studies (9 papers). John Nunan is often cited by papers focused on Catalytic Processes in Materials Science (31 papers), Catalysis and Oxidation Reactions (19 papers) and Catalysis and Hydrodesulfurization Studies (9 papers). John Nunan collaborates with scholars based in United States, Belgium and Ireland. John Nunan's co-authors include K. Klier, R.G. Herman, W. B. Williamson, Brendan Coughlan, Heinz J. Robota, William M. Carroll, Gary W. Simmons, Michelle J. Cohn, B. C. Gerstein and Po Jen Chu and has published in prestigious journals such as The Journal of Physical Chemistry, Journal of Catalysis and Inorganic Chemistry.

In The Last Decade

John Nunan

40 papers receiving 1.0k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
John Nunan United States 17 903 673 268 237 149 41 1.1k
Todd H. Ballinger Germany 18 854 0.9× 466 0.7× 227 0.8× 209 0.9× 117 0.8× 32 1.1k
Ahmad Kalantar Neyestanaki Finland 19 628 0.7× 465 0.7× 310 1.2× 165 0.7× 330 2.2× 26 920
Karl C. Kharas United States 13 1.0k 1.1× 652 1.0× 299 1.1× 126 0.5× 80 0.5× 23 1.2k
Edward Jobson Sweden 20 918 1.0× 667 1.0× 374 1.4× 79 0.3× 59 0.4× 35 1.0k
Т. В. Ларина Russia 20 820 0.9× 393 0.6× 315 1.2× 168 0.7× 125 0.8× 99 1.2k
C. Larese Spain 16 1.0k 1.2× 755 1.1× 405 1.5× 88 0.4× 89 0.6× 17 1.1k
П. Г. Цырульников Russia 20 1.1k 1.2× 800 1.2× 294 1.1× 135 0.6× 157 1.1× 99 1.3k
Masahide Shimokawabe Japan 17 750 0.8× 510 0.8× 249 0.9× 72 0.3× 144 1.0× 38 899
Anne M. Gaffney United States 17 846 0.9× 795 1.2× 194 0.7× 229 1.0× 133 0.9× 35 1.1k
Nobuyuki Takagi Japan 18 855 0.9× 581 0.9× 267 1.0× 80 0.3× 318 2.1× 36 1.2k

Countries citing papers authored by John Nunan

Since Specialization
Citations

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

Fields of papers citing papers by John Nunan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of John Nunan

This figure shows the co-authorship network connecting the top 25 collaborators of John Nunan. A scholar is included among the top collaborators of John Nunan 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 John Nunan. John Nunan 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.
Nunan, John, et al.. (2018). Durability of an UF HC Trap/SCR Catalyst System Applied to a 4-Cylinder PZEV Calibrated Vehicle. SAE technical papers on CD-ROM/SAE technical paper series. 1. 3 indexed citations
2.
Xu, Lifeng, et al.. (2018). A New Catalyzed HC Trap Technology that Enhances the Conversion of Gasoline Fuel Cold-Start Emissions. SAE international journal of fuels and lubricants. 11(4). 411–425. 16 indexed citations
3.
Xu, Lifeng, et al.. (2018). Benefits of Pd Doped Zeolites for Cold Start HC/NOx Emission Reductions for Gasoline and E85 Fueled Vehicles. SAE international journal of fuels and lubricants. 11(4). 301–317. 18 indexed citations
4.
Kotrba, Adam, et al.. (2011). A Dual - Reductant HC LNC Approach to Commercial Vehicle Tier 4 Final Solutions. SAE technical papers on CD-ROM/SAE technical paper series. 1. 3 indexed citations
5.
Williamson, W. B., et al.. (2007). Palladium/Rhodium Dual-Catalyst LEV 2 and Bin 4 Close-Coupled Emission Solutions. SAE technical papers on CD-ROM/SAE technical paper series. 1. 2 indexed citations
6.
Lahousse, C., et al.. (2006). Backpressure Characteristics of Modern Three-way Catalysts, Benefit on Engine Performance. SAE technical papers on CD-ROM/SAE technical paper series. 1. 11 indexed citations
7.
Gulati, Suresh T., et al.. (1998). Fatigue and Performance Data for Advanced Thin Wall Ceramic Catalysts. SAE technical papers on CD-ROM/SAE technical paper series. 1. 16 indexed citations
8.
Nunan, John, W. B. Williamson, & Heinz J. Robota. (1996). Advanced TWC Technologies Using CeO2/ZrO2 Solid Solutions. SAE technical papers on CD-ROM/SAE technical paper series. 25 indexed citations
9.
Nunan, John, K. Klier, & R.G. Herman. (1993). Methanol and 2-Methyl-1-Propanol (Isobutanol) Coupling to Ethers and Dehydration over Nafion H: Selectivity, Kinetics, and Mechanism. Journal of Catalysis. 139(2). 406–420. 21 indexed citations
10.
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12.
Chu, Po Jen, B. C. Gerstein, John Nunan, & K. Klier. (1987). ChemInform Abstract: A Study by Solid‐State NMR of 133Cs and 1H of a Hydrated and Dehydrated Cesium Mordenite. ChemInform. 18(37). 4 indexed citations
13.
Nunan, John, et al.. (1986). Promotion of methanol synthesis over Cu/ZnO catalysts by doping with caesium. Journal of the Chemical Society Chemical Communications. 193–193. 34 indexed citations
14.
Klier, K., et al.. (1986). Promotion of the water gas shift reaction by cesium surface doping of the model binary copper/zinc oxide catalyst. Industrial & Engineering Chemistry Fundamentals. 25(1). 36–42. 48 indexed citations
15.
Nunan, John, K. Klier, & R.G. Herman. (1985). Selective coupling of methanol and 2-methylpropan-1-ol to give 1-methoxy-2-methylpropane (methyl isobutyl ether). Journal of the Chemical Society Chemical Communications. 676–676. 9 indexed citations
16.
17.
Cunningham, Joseph, Mohammad Ilyas, & John Nunan. (1984). Surface reactions and catalysis at alcoholvapour/3dtransitionmetaloxide interfaces at T ≤ 475 K. Part I. Dehydration and dehydrogenation of isopropanol over V2O5 and V2O3. Canadian Journal of Chemistry. 62(4). 785–790. 6 indexed citations
18.
Coughlan, Brendan, William M. Carroll, & John Nunan. (1983). Alkylation reactions over ion-exchanged molecular sieve zeolite catalysts. Part 1.—Alkylation of toluene with methanol: consideration of the effects of reaction parameters on catalyst deactivation and the extent of polysubstitution. Journal of the Chemical Society Faraday Transactions 1 Physical Chemistry in Condensed Phases. 79(2). 281–281. 10 indexed citations
19.
Coughlan, Brendan, William M. Carroll, & John Nunan. (1983). Alkylation reactions over ion-exchanged molecular sieve zeolite catalysts. Part 3.—Alkylation of toluene and benzene with ethanol: consideration of the effects of initial coke formation on para selectivity. Journal of the Chemical Society Faraday Transactions 1 Physical Chemistry in Condensed Phases. 79(2). 311–311. 6 indexed citations
20.
Coughlan, Brendan, et al.. (1981). An interpretation of proton acidity and its relevance to catalysis in low sodium content Y zeolites from studies of heats of immersion in methanol. Journal of Chemical Technology & Biotechnology. 31(1). 1–5. 5 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.

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