World's Best Scientists 2026 revealed!
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Chemistry
USA
2026

D-Index & Metrics

Chemistry

D-Index
152
Citations
87736
World Ranking
123
National Ranking
64

Research.com Recognitions

  • 2026 - Research.com Chemistry in United States Leader Award
  • 2025 - Research.com Chemistry in United States Leader Award
  • 2018 - F.A. Cotton Medal for Excellence in Chemical Research, American Chemical Society (ACS)
  • 2009 - Fellow of the American Chemical Society
  • 2009 - Welch Award in Chemistry, Robert A. Welch Foundation
  • 2004 - Benjamin Franklin Medal, Franklin Institute
  • 2004 - Wolf Prize in Chemistry, Wolf Foundation for pioneering work in bio-inorganic chemistry, unravelling novel principles of structure and long-range electron transfer in proteins.
  • 2003 - William H. Nichols Medal, American Chemical Society (ACS)
  • 2003 - NAS Award in Chemical Sciences, National Academy of Sciences (US) For his demonstration of long-range electron tunneling in proteins, his inspirational teaching and mentoring of students, and his unselfish service as a statesman for chemistry.
  • 2001 - Oesper Award, University of Cincinnati and American Chemical Society
  • 2001 - George C. Pimentel Award in Chemical Education, American Chemical Society (ACS)
  • 2000 - Fellow of the Royal Society, United Kingdom
  • 1991 - Priestley Medal, American Chemical Society (ACS)
  • 1989 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 1986 - US President's National Medal of Science "For his pioneering research in bioinorganic chemistry and inorganic photochemistry, and for his many contributions to chemical education.", Presented by President Reagan at a White House Ceremony on March 12, 1986.
  • 1986 - Linus Pauling Award, American Chemical Society (ACS)
  • 1984 - Centenary Prize, Royal Society of Chemistry (UK)
  • 1979 - Tolman Award, American Chemical Society (ACS)
  • 1979 - Fellow of the American Academy of Arts and Sciences
  • 1972 - Fellow of John Simon Guggenheim Memorial Foundation
  • 1971 - Member of the National Academy of Sciences
  • 1970 - ACS Award in Pure Chemistry, American Chemical Society (ACS)
  • 1964 - Fellow of Alfred P. Sloan Foundation
  • 1934 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

Harry B. Gray is affiliated with the California Institute of Technology in the United States. Their research covers several fields including Energy, Materials Science, and Engineering, with a focus on subfields such as Renewable Energy, Sustainability and the Environment, Electrical and Electronic Engineering, Catalysis, Materials Chemistry, and Electronic, Optical and Magnetic Materials.

The scientist's work broadly addresses topics like Ammonia Synthesis and Nitrogen Reduction, Electrocatalysts for Energy Conversion, Catalytic Processes in Materials Science, CO2 Reduction Techniques and Catalysts, Magnetism in coordination complexes, Metal-Catalyzed Oxygenation Mechanisms, and Molecular Junctions and Nanostructures.

Recent papers authored or co-authored by Harry B. Gray include:

  • Cathodic NH4+ leaching of nitrogen impurities in CoMo thin-film electrodes in aqueous acidic solutions (2020), published in Sustainable Energy & Fuels
  • Synthesis, structural studies, and redox chemistry of bimetallic [Mn(CO)3] and [Re(CO)3] complexes (2021), published in Dalton Transactions
  • Design of robust 2,2'-bipyridine ligand linkers for the stable immobilization of molecular catalysts on silicon(111) surfaces (2021), published in Physical Chemistry Chemical Physics

Frequent co-authors of this scientist include:

  • Nathan S. Lewis
  • James D. Blakemore
  • Weilai Yu
  • Pakpoom Buabthong
  • Carlos G. Read

Publication venues where their work has appeared repeatedly include Sustainable Energy & Fuels, Dalton Transactions, and Physical Chemistry Chemical Physics.

Harry B. Gray has received multiple awards over the course of their career, such as the F.A. Cotton Medal for Excellence in Chemical Research from the American Chemical Society (2018), Welch Award in Chemistry from the Robert A. Welch Foundation (2009), and the Wolf Prize in Chemistry from the Wolf Foundation (2004) for work in bio-inorganic chemistry, specifically on principles of structure and long-range electron transfer in proteins.

Other distinctions include the Benjamin Franklin Medal from the Franklin Institute (2004), NAS Award in Chemical Sciences (2003) recognizing contributions to electron tunneling in proteins and mentoring, and the US President's National Medal of Science (1986) for pioneering research in bioinorganic chemistry and chemical education. Additional honors include fellowships from the American Chemical Society, American Association for the Advancement of Science, Royal Society in the UK, and various medals and awards from the American Chemical Society spanning several decades.

Best Publications

  • The Electronic Structure of the Vanadyl Ion

    C. J. Ballhausen;Harry B. Gray

  • Powering the planet with solar fuel

    Harry B. Gray

  • Earth-Abundant Heterogeneous Water Oxidation Catalysts

    Bryan M. Hunter;Harry B. Gray;Astrid M. Müller

  • Hydrogen evolution catalyzed by cobaloximes.

    Jillian L. Dempsey;Bruce S. Brunschwig;Jay R. Winkler;Harry B. Gray

  • Ligand substitution processes

    Cooper Harold Langford;Harry B. Gray

  • Long-range electron transfer.

    Harry B. Gray;Jay R. Winkler

  • Molecular orbital theory: An introductory lecture note and reprint volume

    Carl Johan Ballhausen;Harry B. Gray

  • Ni–Mo Nanopowders for Efficient Electrochemical Hydrogen Evolution

    James R. McKone;Bryce F. Sadtler;Caroline A. Werlang;Nathan S. Lewis

  • ELECTRON TRANSFER IN RUTHENIUM-MODIFIED PROTEINS

    Jay R. Winkler;Harry B. Gray

  • Electron tunneling through proteins

    Harry B. Gray;Jay R. Winkler

  • Will Solar-Driven Water-Splitting Devices See the Light of Day?

    James R. McKone;Nathan S. Lewis;Harry B. Gray

  • Earth-abundant hydrogen evolution electrocatalysts

    James R. McKone;Smaranda C. Marinescu;Bruce S. Brunschwig;Jay R. Winkler

  • Electronic structure of metallocenes

    Harry B. Gray;Y. S. Sohn;N. Hendrickson

  • Electron-tunneling pathways in proteins.

    David N. Beratan;José Nelson Onuchic;Jay R. Winkler;Harry B. Gray

  • Copper coordination in blue proteins.

    Harry B. Gray;Bo G. Malmström;R.J.P. Williams

  • Pyrophosphito-bridged diplatinum chemistry

    D. Max Roundhill;Harry B. Gray;Chi Ming Che

  • Effect of interlayer anions on [NiFe]-LDH nanosheet water oxidation activity

    B. M. Hunter;W. Hieringer;J. R. Winkler;H. B. Gray

  • A Molecular Orbital Theory for Square Planar Metal Complexes

    Harry B. Gray;C. J. Ballhausen

  • Oxoiron(IV) in chloroperoxidase compound II is basic: implications for P450 chemistry.

    Michael T. Green;John H. Dawson;Harry B. Gray

  • Electronic Spectroscopy of Chloro(terpyridine)platinum(II)

    James A. Bailey;Michael G. Hill;Richard E. Marsh;Vincent M. Miskowski

  • Evaluation of Pt, Ni, and Ni–Mo electrocatalysts for hydrogen evolution on crystalline Si electrodes

    James R. McKone;Emily L. Warren;Matthew J. Bierman;Shannon W. Boettcher

Frequent Co-Authors

Jay R. Winkler
Jay R. Winkler California Institute of Technology
Zeev Gross
Zeev Gross Technion – Israel Institute of Technology
John H. Richards
John H. Richards California Institute of Technology
George S. Hammond
George S. Hammond University of Hawaii at Manoa
Chi-Ming Che
Chi-Ming Che University of Hong Kong
Nathan S. Lewis
Nathan S. Lewis California Institute of Technology
Michael G. Hill
Michael G. Hill Occidental College
Antonín Vlček
Antonín Vlček Czech Academy of Sciences
Bruce S. Brunschwig
Bruce S. Brunschwig California Institute of Technology
Richard E. Dickerson
Richard E. Dickerson University of California, Los Angeles

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