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R.K. Kotnala

R.K. Kotnala

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Materials Science 60 6977 6741 100 97 454 14718

R.K. Kotnala publications per year

The chart shows the history of publications by R.K. Kotnala between 1981 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. R.K. Kotnala published across 45 years, from 1981 to 2025, averaging 10.2 papers a year. Output peaked at 56 publications in 2014. 6 of the 461 publications appeared in the last two years.

No. of publications
10 20 30 40 50
Bar chart. Horizontal axis: year, 1981 to 2025. Vertical axis: number of publications, 0 to 56. Peak 56 publications in 2014. 1981: 1 publication 1982: 1 publication 1983: 2 publications 1984: 1 publication 1985: 0 publications 1986: 0 publications 1987: 0 publications 1988: 6 publications 1989: 2 publications 1990: 1 publication 1991: 1 publication 1992: 2 publications 1993: 0 publications 1994: 0 publications 1995: 0 publications 1996: 0 publications 1997: 0 publications 1998: 0 publications 1999: 0 publications 2000: 0 publications 2001: 0 publications 2002: 0 publications 2003: 0 publications 2004: 0 publications 2005: 0 publications 2006: 1 publication 2007: 4 publications 2008: 13 publications 2009: 23 publications 2010: 23 publications 2011: 25 publications 2012: 35 publications 2013: 49 publications 2014: 56 publications 2015: 34 publications 2016: 33 publications 2017: 42 publications 2018: 31 publications 2019: 30 publications 2020: 16 publications 2021: 17 publications 2022: 5 publications 2023: 1 publication 2024: 4 publications 2025: 2 publications
1981 2025

461 publications in total across all disciplines

View publications per year as a table
R.K. Kotnala: publications per year, 1981 to 2025
Year Publications
1981 1
1982 1
1983 2
1984 1
1985 0
1986 0
1987 0
1988 6
1989 2
1990 1
1991 1
1992 2
1993 0
1994 0
1995 0
1996 0
1997 0
1998 0
1999 0
2000 0
2001 0
2002 0
2003 0
2004 0
2005 0
2006 1
2007 4
2008 13
2009 23
2010 23
2011 25
2012 35
2013 49
2014 56
2015 34
2016 33
2017 42
2018 31
2019 30
2020 16
2021 17
2022 5
2023 1
2024 4
2025 2
Total 461
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R.K. Kotnala publication distribution in Materials Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Materials Science in 2026. The highlighted bar marks where R.K. Kotnala sits on this spectrum.

No. of scientists
200 400 600 800
Bar chart with 57 bars. Horizontal axis: publications, 50–69 to 1,163+. Vertical axis: number of scientists, 0 to 891. Most scientists, 891, have 190–209 publications. The last bar groups every scientist with 1,163 publications or more. The highlighted bar, 450–469 publications, is where this scientist sits. 50–69 publications: 28 scientists 70–89 publications: 152 scientists 90–109 publications: 356 scientists 110–129 publications: 487 scientists 130–149 publications: 723 scientists 150–169 publications: 835 scientists 170–189 publications: 850 scientists 190–209 publications: 891 scientists 210–229 publications: 862 scientists 230–249 publications: 766 scientists 250–269 publications: 726 scientists 270–289 publications: 665 scientists 290–309 publications: 593 scientists 310–329 publications: 537 scientists 330–349 publications: 477 scientists 350–369 publications: 440 scientists 370–389 publications: 356 scientists 390–409 publications: 321 scientists 410–429 publications: 256 scientists 430–449 publications: 246 scientists 450–469 publications: 216 scientists 470–489 publications: 212 scientists 490–509 publications: 174 scientists 510–529 publications: 194 scientists 530–549 publications: 162 scientists 550–569 publications: 131 scientists 570–589 publications: 111 scientists 590–609 publications: 103 scientists 610–629 publications: 99 scientists 630–649 publications: 77 scientists 650–669 publications: 92 scientists 670–689 publications: 56 scientists 690–709 publications: 53 scientists 710–729 publications: 53 scientists 730–749 publications: 38 scientists 750–769 publications: 52 scientists 770–789 publications: 43 scientists 790–809 publications: 38 scientists 810–829 publications: 34 scientists 830–849 publications: 25 scientists 850–869 publications: 18 scientists 870–889 publications: 20 scientists 890–909 publications: 24 scientists 910–929 publications: 27 scientists 930–949 publications: 20 scientists 950–969 publications: 17 scientists 970–989 publications: 10 scientists 990–1,009 publications: 16 scientists 1,010–1,029 publications: 13 scientists 1,030–1,049 publications: 12 scientists 1,050–1,069 publications: 9 scientists 1,070–1,089 publications: 8 scientists 1,090–1,109 publications: 7 scientists 1,110–1,129 publications: 9 scientists 1,130–1,149 publications: 2 scientists 1,150–1,162 publications: 5 scientists 1,163+ publications: 100 scientists
50–69 publications 1,163+

This scientist: 454 publications — 83rd percentile

83% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,163 publications or more.

View publications distribution as a table
Number of Materials Science scientists by publication count, Research.com 2026 ranking edition. Based on 12,847 ranked scientists.
Publications Scientists This scientist
50–69 28
70–89 152
90–109 356
110–129 487
130–149 723
150–169 835
170–189 850
190–209 891
210–229 862
230–249 766
250–269 726
270–289 665
290–309 593
310–329 537
330–349 477
350–369 440
370–389 356
390–409 321
410–429 256
430–449 246
450–469 216 454
470–489 212
490–509 174
510–529 194
530–549 162
550–569 131
570–589 111
590–609 103
610–629 99
630–649 77
650–669 92
670–689 56
690–709 53
710–729 53
730–749 38
750–769 52
770–789 43
790–809 38
810–829 34
830–849 25
850–869 18
870–889 20
890–909 24
910–929 27
930–949 20
950–969 17
970–989 10
990–1,009 16
1,010–1,029 13
1,030–1,049 12
1,050–1,069 9
1,070–1,089 8
1,090–1,109 7
1,110–1,129 9
1,130–1,149 2
1,150–1,162 5
1,163+ 100
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R.K. Kotnala D-index placement in Materials Science in 2026

The chart shows the D-index (discipline H-index) distribution of Materials Science scientists ranked by Research.com in 2026. The highlighted bar marks where R.K. Kotnala sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 64 bars. Horizontal axis: D-Index, 40–41 to 165+. Vertical axis: number of scientists, 0 to 667. Most scientists, 667, have 52–53 D-Index. The last bar groups every scientist with 165 D-Index or more. The highlighted bar, 60–61 D-Index, is where this scientist sits. 40–41 D-Index: 211 scientists 42–43 D-Index: 450 scientists 44–45 D-Index: 612 scientists 46–47 D-Index: 612 scientists 48–49 D-Index: 598 scientists 50–51 D-Index: 657 scientists 52–53 D-Index: 667 scientists 54–55 D-Index: 621 scientists 56–57 D-Index: 597 scientists 58–59 D-Index: 610 scientists 60–61 D-Index: 587 scientists 62–63 D-Index: 606 scientists 64–65 D-Index: 533 scientists 66–67 D-Index: 490 scientists 68–69 D-Index: 469 scientists 70–71 D-Index: 378 scientists 72–73 D-Index: 421 scientists 74–75 D-Index: 359 scientists 76–77 D-Index: 323 scientists 78–79 D-Index: 299 scientists 80–81 D-Index: 230 scientists 82–83 D-Index: 210 scientists 84–85 D-Index: 195 scientists 86–87 D-Index: 203 scientists 88–89 D-Index: 175 scientists 90–91 D-Index: 175 scientists 92–93 D-Index: 142 scientists 94–95 D-Index: 121 scientists 96–97 D-Index: 117 scientists 98–99 D-Index: 107 scientists 100–101 D-Index: 88 scientists 102–103 D-Index: 85 scientists 104–105 D-Index: 68 scientists 106–107 D-Index: 62 scientists 108–109 D-Index: 57 scientists 110–111 D-Index: 45 scientists 112–113 D-Index: 49 scientists 114–115 D-Index: 50 scientists 116–117 D-Index: 34 scientists 118–119 D-Index: 38 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 29 scientists 124–125 D-Index: 28 scientists 126–127 D-Index: 24 scientists 128–129 D-Index: 33 scientists 130–131 D-Index: 28 scientists 132–133 D-Index: 21 scientists 134–135 D-Index: 20 scientists 136–137 D-Index: 23 scientists 138–139 D-Index: 17 scientists 140–141 D-Index: 12 scientists 142–143 D-Index: 17 scientists 144–145 D-Index: 21 scientists 146–147 D-Index: 13 scientists 148–149 D-Index: 11 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 13 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 4 scientists 162–163 D-Index: 4 scientists 164 D-Index: 3 scientists 165+ D-Index: 98 scientists
40–41 D-Index 165+

This scientist: 60 D-Index — 46th percentile

46% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 165 D-Index or more.

View D-Index distribution as a table
Number of Materials Science scientists by D-index, Research.com 2026 ranking edition. Based on 12,847 ranked scientists.
D-Index Scientists This scientist
40–41 211
42–43 450
44–45 612
46–47 612
48–49 598
50–51 657
52–53 667
54–55 621
56–57 597
58–59 610
60–61 587 60
62–63 606
64–65 533
66–67 490
68–69 469
70–71 378
72–73 421
74–75 359
76–77 323
78–79 299
80–81 230
82–83 210
84–85 195
86–87 203
88–89 175
90–91 175
92–93 142
94–95 121
96–97 117
98–99 107
100–101 88
102–103 85
104–105 68
106–107 62
108–109 57
110–111 45
112–113 49
114–115 50
116–117 34
118–119 38
120–121 37
122–123 29
124–125 28
126–127 24
128–129 33
130–131 28
132–133 21
134–135 20
136–137 23
138–139 17
140–141 12
142–143 17
144–145 21
146–147 13
148–149 11
150–151 14
152–153 13
154–155 9
156–157 10
158–159 7
160–161 4
162–163 4
164 3
165+ 98
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Overview

R.K. Kotnala is affiliated with NABL India and has contributed extensively to research in the fields of Materials Science and Engineering. Their work primarily revolves around areas such as Materials Chemistry, Electronic, Optical and Magnetic Materials, and Electrical and Electronic Engineering. Additionally, they have engaged in studies covering Biomedical Engineering and topics related to Renewable Energy, Sustainability, and the Environment.

Their research topics include:

  • Magnetic Properties and Synthesis of Ferrites
  • Multiferroics and related materials
  • Advancements in Battery Materials
  • Electromagnetic wave absorption materials
  • Membrane-based Ion Separation Techniques
  • Supercapacitor Materials and Fabrication
  • Air Quality and Health Impacts

Among the recent papers published by R.K. Kotnala, the following are notable for their contributions and citation counts:

  • Nickel substituted oxygen deficient nanoporous lithium ferrite based green energy device hydroelectric cell, 2020, Journal of Alloys and Compounds
  • Emergence of Blue Sky Over Delhi Due to Coronavirus Disease (COVID-19) Lockdown Implications, 2020, Aerosol Science and Engineering
  • Dielectric and impedance studies of binary ZnO-CuO nanocomposites for hydroelectric cell application, 2022, Materials Chemistry and Physics
  • Structural, optical and electrical behaviour of sodium-substituted magnesium nanoferrite for hydroelectric cell applications, 2022, Applied Nanoscience
  • Bi-doped barium ferrite decorated polythiophene nanocomposite: influence of Bi-doping on structure, morphology, thermal and EMI shielding behavior for X-band, 2020, Journal of Materials Science

The scientist frequently publishes in the following venues:

  • Journal of Alloys and Compounds
  • Journal of Materials Science Materials in Electronics
  • Aerosol Science and Engineering
  • Current Natural Sciences & Engineering.
  • Materials Chemistry and Physics

Collaborative efforts are evident in their work, with frequent coauthors including Jyoti Shah, Vivek Kumar, Rakesh Kumar Singh, Aniket Manash, and Shashank Bhushan Das. These collaborations highlight a pattern of sustained partnerships contributing to research development.

Best Publications

  • Improved Electromagnetic Interference Shielding Response of Poly(aniline)-Coated Fabrics Containing Dielectric and Magnetic Nanoparticles

    Parveen Saini;Veena Choudhary;N. Vijayan;R. K. Kotnala

  • Significance of interface barrier at electrode of hematite hydroelectric cell for generating ecopower by water splitting

    Shipra Jain;Shipra Jain;Jyoti Shah;Nainjeet Singh Negi;Chhemendra Sharma

  • Direct evidence for multiferroic magnetoelectric coupling in 0.9BiFeO3-0.1BaTiO3.

    Anar Singh;Vibhav Pandey;R. K. Kotnala;Dhananjai Pandey

  • Synthesis and characterization of nano-sized pure and Al-doped lithium ferrite having high value of dielectric constant

    M. Abdullah Dar;Khalid Mujasam Batoo;Vivek Verma;W.A. Siddiqui

  • Structural, electrical and magnetic properties of Co-Cu ferrite nanoparticles

    Mohd. Hashim;Alimuddin;Shalendra Kumar;B.H. Koo

  • Influence of rare earth ion doping (Ce and Dy) on electrical and magnetic properties of cobalt ferrites

    Mohd. Hashim;M. Raghasudha;Sher Singh Meena;Jyoti Shah

  • Raman spectra, photoluminescence and ferromagnetism of pure, Co and Fe doped SnO2 nanoparticles

    Jasneet Kaur;Jyoti Shah;R.K. Kotnala;Kuldeep Chand Verma

  • Structural, electrical and magnetic properties of cadmium substituted nickel–copper ferrites

    P.B. Belavi;G.N. Chavan;L.R. Naik;R. Somashekar

  • Induced magnetism and magnetoelectric coupling in ferroelectric BaTiO3 by Cr-doping synthesized by a facile chemical route

    Jyoti Shah;Ravinder K. Kotnala

  • Nanostructured TiO 2 thin films prepared by RF magnetron sputtering for photocatalytic applications

    Jaspal Singh;Saif A. Khan;J. Shah;R.K. Kotnala

  • Room-temperature ferromagnetism in Li-doped p -type luminescent ZnO nanorods

    Santa Chawla;K. Jayanthi;R. K. Kotnala

  • Magnetic, X-ray and Mössbauer studies on magnetite/maghemite core─shell nanostructures fabricated through an aqueous route

    Srividhya J. Iyengar;Mathew Joy;Chandan Kumar Ghosh;Subhrajyoti Dey

  • Synthesis and characterizations of Ni2+ substituted cobalt ferrite nanoparticles

    Mohd. Hashim;Alimuddin;Shalendra Kumar;Sagar E. Shirsath

  • Preparation and characterization chemistry of nano-crystalline Ni–Cu–Zn ferrite

    Mohd Hashim;Alimuddin;Sagar E Shirsath;Shalendra Kumar

  • Multifunctional gold coated iron oxide core-shell nanoparticles stabilized using thiolated sodium alginate for biomedical applications.

    Ankur Sood;Varun Arora;Jyoti Shah;R.K. Kotnala

  • Self-assembled nanostructures of 3D hierarchical faceted-iron oxide containing vertical carbon nanotubes on reduced graphene oxide hybrids for enhanced electromagnetic interface shielding

    Rajesh Kumar;Andrei V. Alaferdov;Rajesh K. Singh;Ashwani K. Singh

  • Modified composition of barium ferrite to act as a microwave absorber in X-band frequencies

    S.P. Gairola;Vivek Verma;A. Singh;L.P. Purohit

  • Enhanced microwave absorption properties in polyaniline and nano-ferrite composite in X-band

    S.P. Gairola;Vivek Verma;Vivek Verma;Lalit Kumar;M. Abdullah Dar

  • Low dielectric loss of Mg doped Ni–Cu–Zn nano-ferrites for power applications

    M. Abdullah Dar;M. Abdullah Dar;Vivek Verma;S.P. Gairola;W.A. Siddiqui

  • Humidity response of Li-substituted magnesium ferrite

    R.K. Kotnala;Jyoti Shah;Bhikham Singh;Hari kishan

Frequent Co-Authors

Jyoti Shah
Jyoti Shah Council of Scientific and Industrial Research
Sagar E. Shirsath
Sagar E. Shirsath University of New South Wales
Khalid Mujasam Batoo
Khalid Mujasam Batoo King Saud University
Sundeep K. Dhawan
Sundeep K. Dhawan National Physical Laboratory of India
Ram S. Katiyar
Ram S. Katiyar University of Puerto Rico
Bipin Kumar Gupta
Bipin Kumar Gupta Council of Scientific and Industrial Research
Vinay Gupta
Vinay Gupta University of Delhi
Ameer Azam
Ameer Azam Aligarh Muslim University
Sharif Ahmad
Sharif Ahmad Jamia Millia Islamia
Govind Gupta
Govind Gupta Indian Institute of Science

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