Sam John

1.2k total citations
45 papers, 992 citations indexed

About

Sam John is a scholar working on Materials Chemistry, Civil and Structural Engineering and Metals and Alloys. According to data from OpenAlex, Sam John has authored 45 papers receiving a total of 992 indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Materials Chemistry, 19 papers in Civil and Structural Engineering and 12 papers in Metals and Alloys. Recurrent topics in Sam John's work include Corrosion Behavior and Inhibition (24 papers), Concrete Corrosion and Durability (19 papers) and Hydrogen embrittlement and corrosion behaviors in metals (12 papers). Sam John is often cited by papers focused on Corrosion Behavior and Inhibition (24 papers), Concrete Corrosion and Durability (19 papers) and Hydrogen embrittlement and corrosion behaviors in metals (12 papers). Sam John collaborates with scholars based in India, Qatar and United States. Sam John's co-authors include Abraham Joseph, Soney C. George, Mathew Kuruvilla, K.K. Aravindakshan, T. Sajini, B. Narayana, Jyothish Joy, Deepalekshmi Ponnamma, Anupama R. Prasad and Beena Mathew and has published in prestigious journals such as Journal of Power Sources, International Journal of Hydrogen Energy and Industrial & Engineering Chemistry Research.

In The Last Decade

Sam John

40 papers receiving 962 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Sam John India	18	780	505	283	169	158	45	992
A. Madhankumar Saudi Arabia	17	856 1.1×	450 0.9×	273 1.0×	175 1.0×	166 1.1×	23	1.1k
Haijun Huang China	15	678 0.9×	279 0.6×	138 0.5×	318 1.9×	91 0.6×	30	983
B. V. Appa Rao India	17	607 0.8×	347 0.7×	196 0.7×	249 1.5×	58 0.4×	38	799
Berrin Duran Türkiye	13	599 0.8×	377 0.7×	224 0.8×	156 0.9×	264 1.7×	20	784
Andrea Kellenberger Romania	17	443 0.6×	227 0.4×	159 0.6×	459 2.7×	257 1.6×	37	969
A. Nityananda Shetty India	16	491 0.6×	171 0.3×	85 0.3×	268 1.6×	213 1.3×	63	951
E.B. Castro Argentina	19	654 0.8×	160 0.3×	235 0.8×	534 3.2×	102 0.6×	38	1.2k
Tô Thị Xuân Hằng Vietnam	13	629 0.8×	201 0.4×	50 0.2×	52 0.3×	291 1.8×	30	826
Chen Pan China	14	445 0.6×	134 0.3×	221 0.8×	69 0.4×	27 0.2×	26	678
Miomir Pavlović Serbia	12	390 0.5×	139 0.3×	102 0.4×	315 1.9×	34 0.2×	45	620

Countries citing papers authored by Sam John

Since Specialization

Citations

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

Fields of papers citing papers by Sam John

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sam John

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

All Works

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20 of 20 papers shown

John, Sam, et al.. (2025). Tuning the electrochemical performance of graphene via covalent surface functionalization using silane coupling agent and incorporation of acid-modified multi-walled carbon nanotube for high energy and high power supercapacitor application. Journal of Power Sources. 661. 238622–238622. 1 indexed citations

John, Sam, et al.. (2025). Polymorphic titania/In2O3 composite heterojunction: A visible light-driven and Z-scheme assisted approach for boosting charge carrier dynamics and solar photocatalytic hydrogen evolution. International Journal of Hydrogen Energy. 174. 151015–151015.

Sylas, V. P., et al.. (2025). Novel approach to gold ion detection in aqueous solutions using silver nanoparticles synthesized from the seed extract of mangrove associate plant Thespesia populnea. Results in Surfaces and Interfaces. 21. 100634–100634.

Mathew, Beena, et al.. (2025). Utilization of biomass from Artocarpus heterophyllus as a sustainable adsorbent for cationic dyes from water: mechanistic insights and practical applicability. Biomass Conversion and Biorefinery. 15(12). 18629–18646. 1 indexed citations

Mallik, A., et al.. (2025). Unveiling the synergy between efficient charge separation and transport in multiphasic titania-ZnO heterojunctions for enhanced solar-driven photocatalytic hydrogen evolution. Journal of Alloys and Compounds. 1036. 181875–181875. 1 indexed citations

John, Sam, et al.. (2025). Engineering the concentration and shape of Ag nanostructures for enhanced surface plasmon assisted photocatalytic H2-evolution of rutile TiO2 under solar irradiation. International Journal of Hydrogen Energy. 145. 508–518.

Sen, Dhanya B., et al.. (2025). Sustainable ZnO NPs for a Greener Future: An Integrative Review of Emerging Frontiers in Environmental, Biomedical, and Nanoinformatics Applications. Biomedical Materials & Devices.

Hashim, Roslan, et al.. (2025). Biosynthesis of zinc oxide nanoparticles using banana peduncle and its antimicrobial, antifungal, and photocatalytic degradation activity. Materials Research Innovations. 29(7). 462–471.

John, Sam, et al.. (2023). Fabrication of high-performance symmetric pseudocapacitor by synthesizing ionic liquid-modified graphene/MoS2 NS binary electrode. Journal of Energy Storage. 74. 109436–109436. 3 indexed citations

10.

John, Sam, et al.. (2022). Fabrication of high-performance symmetric supercapacitor of graphene electrodes by tuning their electrochemical properties. Journal of Energy Storage. 56. 105919–105919. 25 indexed citations

11.

Sajini, T., Sam John, & Beena Mathew. (2022). Fabrication of nanostructured molecularly imprinted polymer as enantioselective sensor and sorbent for L-phenylalanine benzyl ester. Journal of Polymer Research. 29(12). 1 indexed citations

12.

John, Sam, et al.. (2021). The effect of poly(vinylidene fluoride) binder on the electrochemical performance of graphitic electrodes. Journal of Energy Storage. 39. 102654–102654. 23 indexed citations

13.

John, Sam, et al.. (2021). Electrochemical characterization of orthorhombic tungsten trioxide hydrate for battery applications. Journal of Alloys and Compounds. 869. 159234–159234. 8 indexed citations

14.

John, Sam, et al.. (2020). Corrosion inhibition of mild steel using poly (2-ethyl -2-oxazoline) in 0.1M HCl solution. Heliyon. 6(11). e05560–e05560. 27 indexed citations

15.

Prasad, Anupama R., et al.. (2019). Protection of mild steel in hydrochloric acid using methyl benzimidazole substituted 1, 3, 4-oxadiazole: computational, electroanalytical, thermodynamic and kinetic studies. Journal of Adhesion Science and Technology. 33(20). 2227–2249. 17 indexed citations

16.

John, Sam, Mathew Kuruvilla, & Abraham Joseph. (2012). Surface morphological and impedance spectroscopic studies on the interaction of polyethylene glycol (PEG) and polyvinyl pyrrolidone (PVP) with mild steel in acid solutions. Research on Chemical Intermediates. 39(3). 1169–1182. 17 indexed citations

17.

John, Sam, et al.. (2011). Electrochemical, surface analytical and quantum chemical studies on Schiff bases of 4-amino-4H-1, 2, 4-triazole-3,5-dimethanol (ATD) in corrosion protection of aluminium in 1N HNO3. Bulletin of Materials Science. 34(6). 1245–1256. 22 indexed citations

18.

John, Sam, et al.. (2011). Electrochemical, quantum chemical, and molecular dynamics studies on the interaction of 4‐amino‐4H,3,5‐di(methoxy)‐1,2,4‐triazole (ATD), BATD, and DBATD on copper metal in 1N H₂SO₄. Materials and Corrosion. 62(11). 1031–1041. 48 indexed citations

19.

John, Sam, et al.. (2010). Imidazolidine-2-thione as corrosion inhibitor for mild steel in hydrochloric acid. Indian Journal of Chemical Technology. 17(5). 366–374. 12 indexed citations

20.

John, Sam, et al.. (2010). Inhibition of mild steel corrosion in 1 M hydrochloric acid using (E)-4-(2-chlorobenzylideneamino)-6-methyl-3-thioxo-3,4-dihydro-1,2,4-triazin-5(2H)-one (CBMTDT). Indian Journal of Chemical Technology. 17(6). 425–430. 6 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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