World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
58
Citations
11702
World Ranking
10637
National Ranking
155

Rajnish Kumar publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Rajnish Kumar sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 147 publications — 13th percentile

13% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Rajnish Kumar D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Rajnish Kumar sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 58 D-Index — 42nd percentile

42% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

Rajnish Kumar is affiliated with the Indian Institute of Technology Madras in India. Their research primarily spans the fields of Environmental Science and Engineering, with a significant focus on subfields such as Environmental Chemistry, Global and Planetary Change, Aerospace Engineering, Mechanics of Materials, and Environmental Engineering.

The scientist has contributed extensively to the study of various topics within these domains. Major areas of work include Methane Hydrates and Related Phenomena, Atmospheric and Environmental Gas Dynamics, Spacecraft and Cryogenic Technologies, Hydrocarbon Exploration and Reservoir Analysis, CO2 Sequestration and Geologic Interactions, Carbon Dioxide Capture Technologies, and Hybrid Renewable Energy Systems.

Rajnish Kumar's recent publications illustrate their research interests and scholarly output. Selected papers include:

  • Aerogels for water treatment: A review, 2021, Journal of Cleaner Production
  • Comprehensive Review on Exploration and Drilling Techniques for Natural Gas Hydrate Reservoirs, 2020, Energy & Fuels
  • Solidified Hydrogen Storage (Solid-HyStore) via Clathrate Hydrates, 2021, Chemical Engineering Journal
  • Gas Hydrate-Based Process for Desalination of Heavy Metal Ions from an Aqueous Solution: Kinetics and Rate of Recovery, 2020, ACS ES&T Water
  • Hydrothermal liquefaction of municipal solid wastes for high quality bio-crude production using glycerol as co-solvent, 2021, Bioresource Technology

Collaboration has been a notable aspect of their research career, with frequent co-authors including:

  • Jitendra S. Sangwai (17 collaborations)
  • Praveen Linga (15 collaborations)
  • Omkar Singh Kushwaha (13 collaborations)
  • Chandan Sahu (10 collaborations)
  • Gaurav Bhattacharjee (8 collaborations)

Their work has appeared repeatedly in several publication venues, among which the most frequent are:

  • Energy & Fuels (13 publications)
  • SSRN Electronic Journal (6 publications)
  • Industrial & Engineering Chemistry Research (5 publications)
  • ACS Engineering Au (4 publications)
  • Journal of Molecular Liquids (3 publications)

Best Publications

  • The clathrate hydrate process for post and pre-combustion capture of carbon dioxide.

    Praveen Linga;Rajnish Kumar;Peter Englezos

  • A review of the hydrate based gas separation (HBGS) process for carbon dioxide pre-combustion capture

    Ponnivalavan Babu;Praveen Linga;Rajnish Kumar;Peter Englezos

  • Synthesis of biodiesel in supercritical fluids

    Giridhar Madras;Chandana Kolluru;Rajnish Kumar

  • Gas hydrate formation from hydrogen/carbon dioxide and nitrogen/carbon dioxide gas mixtures

    Praveen Linga;Rajnish Kumar;Peter Englezos

  • Hydrogen storage in clathrate hydrates: Current state of the art and future directions

    Hari Prakash Veluswamy;Rajnish Kumar;Praveen Linga

  • Role of Surfactants in Promoting Gas Hydrate Formation

    Asheesh Kumar;Gaurav Bhattacharjee;B. D. Kulkarni;Rajnish Kumar

  • A new apparatus to enhance the rate of gas hydrate formation: Application to capture of carbon dioxide

    Praveen Linga;Rajnish Kumar;Rajnish Kumar;Ju Dong Lee;John Ripmeester

  • Rapid methane hydrate formation to develop a cost effective large scale energy storage system

    Hari Prakash Veluswamy;Alison Jia Hui Wong;Ponnivalavan Babu;Rajnish Kumar

  • Influence of contact medium and surfactants on carbon dioxide clathrate hydrate kinetics

    Asheesh Kumar;Tushar Sakpal;Praveen Linga;Rajnish Kumar

  • Pre-combustion capture of carbon dioxide in a fixed bed reactor using the clathrate hydrate process

    Ponnivalavan Babu;Rajnish Kumar;Praveen Linga

  • An innovative approach to enhance methane hydrate formation kinetics with leucine for energy storage application

    Hari Prakash Veluswamy;Asheesh Kumar;Rajnish Kumar;Praveen Linga

  • Capture of carbon dioxide from flue or fuel gas mixtures by clathrate crystallization in a silica gel column

    Adebola Adeyemo;Adebola Adeyemo;Rajnish Kumar;Rajnish Kumar;Praveen Linga;John Ripmeester

  • Enhanced clathrate hydrate formation kinetics at near ambient temperatures and moderate pressures: Application to natural gas storage

    Hari Prakash Veluswamy;Sharad Kumar;Rajnish Kumar;Pramoch Rangsunvigit

  • Structure and Kinetics of Gas Hydrates from Methane/Ethane/Propane Mixtures Relevant to the Design of Natural Gas Hydrate Storage and Transport Facilities

    Rajnish Kumar;Rajnish Kumar;Praveen Linga;Igor Moudrakovski;John A. Ripmeester

  • Incipient hydrate phase equilibrium for gas mixtures containing hydrogen, carbon dioxide and propane

    Rajnish Kumar;Hui-jie Wu;Peter Englezos

  • Structure and composition of CO2/H2 and CO2/H2/C3H8 hydrate in relation to simultaneous CO2 capture and H2 production

    Rajnish Kumar;Rajnish Kumar;Peter Englezos;Igor Moudrakovski;John A. Ripmeester

  • Carbon Dioxide Sequestration: Influence of Porous Media on Hydrate Formation Kinetics

    Gaurav Bhattacharjee;Asheesh Kumar;Tushar Sakpal;Rajnish Kumar

  • Unusual behavior of propane as a co-guest during hydrate formation in silica sand: Potential application to seawater desalination and carbon dioxide capture

    Ponnivalavan Babu;Rajnish Kumar;Praveen Linga

  • Effect of the amino acid l-histidine on methane hydrate growth kinetics

    Gaurav Bhattacharjee;Nilesh Choudhary;Asheesh Kumar;Suman Chakrabarty

  • HBGS (hydrate based gas separation) process for carbon dioxide capture employing an unstirred reactor with cyclopentane

    Leong Chuan Ho;Ponnivalavan Babu;Rajnish Kumar;Praveen Linga

  • Medium pressure hydrate based gas separation (HBGS) process for pre-combustion capture of carbon dioxide employing a novel fixed bed reactor

    Ponnivalavan Babu;Rajnish Kumar;Praveen Linga

Frequent Co-Authors

Praveen Linga
Praveen Linga National University of Singapore
Peter Englezos
Peter Englezos University of British Columbia
John A. Ripmeester
John A. Ripmeester National Research Council Canada
Jitendra S. Sangwai
Jitendra S. Sangwai Indian Institute of Technology Madras
Igor L. Moudrakovski
Igor L. Moudrakovski Max Planck Society
Giridhar Madras
Giridhar Madras Indian Institute of Technology Hyderabad
Swaranjit Singh Cameotra
Swaranjit Singh Cameotra Council of Scientific and Industrial Research
Jayant M. Modak
Jayant M. Modak Indian Institute of Science
Dennis D. Klug
Dennis D. Klug National Research Council Canada
Thalappil Pradeep
Thalappil Pradeep Indian Institute of Technology Madras

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Studying Chemistry in the USA opens doors to diverse career paths, especially in interdisciplinary fields like forensic science. Many students pursue a forensic science degree online to combine their chemistry knowledge with crime scene investigation and lab analysis skills. This degree offers a practical foundation for roles in law enforcement and legal support services.

For those interested in specialized roles, becoming an autopsy technician can be a rewarding option. This career blends biology, chemistry, and forensic expertise to assist medical examiners and help determine causes of death.

Many professionals also consider advancing their education with a master's in forensic psychology online, which complements a chemistry background by exploring the psychological elements behind criminal behavior.

Understanding the financial outlook is essential too. Forensic careers, supported by a strong foundation in chemistry, often offer competitive compensation as outlined in the forensic science degree salary resources. This makes chemistry-based forensic roles both intellectually fulfilling and financially viable.

Best Scientists Citing Rajnish Kumar

Trending Scientists

Recently Published Articles