Thomas W. Hamann

11.2k total citations · 4 hit papers
110 papers, 9.9k citations indexed

About

Thomas W. Hamann is a scholar working on Renewable Energy, Sustainability and the Environment, Materials Chemistry and Electrical and Electronic Engineering. According to data from OpenAlex, Thomas W. Hamann has authored 110 papers receiving a total of 9.9k indexed citations (citations by other indexed papers that have themselves been cited), including 70 papers in Renewable Energy, Sustainability and the Environment, 60 papers in Materials Chemistry and 21 papers in Electrical and Electronic Engineering. Recurrent topics in Thomas W. Hamann's work include Advanced Photocatalysis Techniques (45 papers), TiO2 Photocatalysis and Solar Cells (27 papers) and Iron oxide chemistry and applications (23 papers). Thomas W. Hamann is often cited by papers focused on Advanced Photocatalysis Techniques (45 papers), TiO2 Photocatalysis and Solar Cells (27 papers) and Iron oxide chemistry and applications (23 papers). Thomas W. Hamann collaborates with scholars based in United States, Germany and Spain. Thomas W. Hamann's co-authors include Benjamin M. Klahr, Omid Zandi, Sixto Giménez, Francisco Fabregat‐Santiago, Juan Bisquert, Alex B. F. Martinson, Joseph T. Hupp, Jesse W. Ondersma, Milton R. Smith and Faezeh Habibzadeh and has published in prestigious journals such as Chemical Reviews, Proceedings of the National Academy of Sciences and Journal of the American Chemical Society.

In The Last Decade

Thomas W. Hamann

107 papers receiving 9.8k citations

Hit Papers

Recent Advances and Challen... 2008 2026 2014 2020 2020 2012 2012 2008 250 500 750 1000
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Recent Advances and Challenges of Electrocatalytic N2Reduction to Ammonia
    2020 1.0k citations Geletu Qing, Milton R. Smith et al. profile →
  2. Water Oxidation at Hematite Photoelectrodes: The Role of Surface States
    2012 927 citations Sixto Giménez, Thomas W. Hamann et al. Journal of the American Chemical Society profile →
  3. Photoelectrochemical and Impedance Spectroscopic Investigation of Water Oxidation with “Co–Pi”-Coated Hematite Electrodes
    2012 636 citations Sixto Giménez, Thomas W. Hamann et al. Journal of the American Chemical Society profile →
  4. Advancing beyond current generation dye-sensitized solar cells
    2008 621 citations Thomas W. Hamann, Alex B. F. Martinson et al. profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Thomas W. Hamann United States 48 8.2k 5.6k 2.0k 1.3k 1.0k 110 9.9k
Alexander J. Cowan United Kingdom 46 6.4k 0.8× 4.0k 0.7× 2.2k 1.1× 624 0.5× 489 0.5× 102 8.0k
S. David Tilley Switzerland 42 8.3k 1.0× 6.1k 1.1× 4.0k 2.0× 343 0.3× 523 0.5× 83 10.7k
Jun Kubota Japan 53 10.9k 1.3× 9.9k 1.8× 4.8k 2.4× 1.2k 0.9× 219 0.2× 202 14.2k
Harun Tüysüz Germany 50 5.4k 0.7× 4.5k 0.8× 4.1k 2.1× 816 0.6× 100 0.1× 154 8.9k
Peilin Liao United States 27 2.6k 0.3× 3.5k 0.6× 2.3k 1.1× 386 0.3× 223 0.2× 48 5.6k
Stafford W. Sheehan United States 26 3.4k 0.4× 2.0k 0.4× 1.2k 0.6× 568 0.4× 246 0.2× 43 4.2k
Michael G. Walter United States 23 8.2k 1.0× 6.2k 1.1× 5.0k 2.5× 302 0.2× 123 0.1× 55 11.1k
Hongxian Han China 46 12.0k 1.5× 9.7k 1.7× 4.8k 2.4× 529 0.4× 105 0.1× 95 13.8k
Takashi Tachikawa Japan 52 6.3k 0.8× 6.9k 1.2× 2.2k 1.1× 164 0.1× 198 0.2× 164 10.1k
Takashi Hisatomi Japan 69 22.7k 2.8× 19.0k 3.4× 8.5k 4.2× 1.3k 1.0× 393 0.4× 248 25.2k

Countries citing papers authored by Thomas W. Hamann

Since Specialization
Citations

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

Fields of papers citing papers by Thomas W. Hamann

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Thomas W. Hamann. 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 Thomas W. Hamann. The network helps show where Thomas W. Hamann may publish in the future.

Co-authorship network of co-authors of Thomas W. Hamann

This figure shows the co-authorship network connecting the top 25 collaborators of Thomas W. Hamann. A scholar is included among the top collaborators of Thomas W. Hamann 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 Thomas W. Hamann. Thomas W. Hamann 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
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Hamann, Thomas W., et al.. (2025). Single Component Dye-Sensitized Solar Cells Enabled by Copper Chemistry: Introduction of the Retro Cell. Energy & Fuels. 39(11). 5604–5611. 1 indexed citations
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Hamann, Thomas W., et al.. (2024). Mechanism-Guided Kinetic Analysis of Electrocatalytic Proton Reduction Mediated by a Cobalt Catalyst Bearing a Pendant Basic Site. Journal of the American Chemical Society. 146(6). 3742–3754. 17 indexed citations
5.
Staples, Richard J., et al.. (2024). Open-Cage Copper Complexes Modulate Coordination and Charge Transfer. Inorganic Chemistry. 63(26). 12081–12088.
6.
Meador, William E., et al.. (2023). Molecular Switch Cobalt Redox Shuttle with a Tunable Hexadentate Ligand. Journal of the American Chemical Society. 145(2). 1367–1377. 10 indexed citations
7.
Xiao, Yixin, Srinivas Vanka, Tuan Anh Pham, et al.. (2022). Crystallographic Effects of GaN Nanostructures in Photoelectrochemical Reaction. Nano Letters. 22(6). 2236–2243. 22 indexed citations
8.
Smith, Milton R., et al.. (2022). Ammonia eurefstics: Electrolytes for liquid energy storage and conversion at room temperature and ambient pressure. Joule. 6(4). 772–781. 3 indexed citations
9.
Kim, Tea-Yon, Jong Gyu Oh, Jaeyoung Jang, et al.. (2021). Interfacial Engineering at Quantum Dot-Sensitized TiO2 Photoelectrodes for Ultrahigh Photocurrent Generation. ACS Applied Materials & Interfaces. 13(5). 6208–6218. 13 indexed citations
10.
Kim, Tea-Yon, et al.. (2020). Low-spin cobalt(ii) redox shuttle by isocyanide coordination. Sustainable Energy & Fuels. 4(5). 2497–2507. 3 indexed citations
11.
Qing, Geletu & Thomas W. Hamann. (2019). New Electrolytic Devices Produce Ammonia with Exceptional Selectivity. Joule. 3(3). 634–636. 12 indexed citations
12.
Bates, Matthew, Margaret Young, Jianzhou He, et al.. (2019). Modulating cellular cytotoxicity and phototoxicity of fluorescent organic salts through counterion pairing. Scientific Reports. 9(1). 15288–15288. 39 indexed citations
13.
Xie, Yuling, et al.. (2018). Spin-Doctoring Cobalt Redox Shuttles for Dye-Sensitized Solar Cells. Inorganic Chemistry. 57(18). 11633–11645. 7 indexed citations
14.
Liu, Dianyi, Qiong Wang, Pei Chen, et al.. (2018). Ultrathin Hole Extraction Layer for Efficient Inverted Perovskite Solar Cells. ACS Omega. 3(6). 6339–6345. 7 indexed citations
15.
Zandi, Omid & Thomas W. Hamann. (2016). Determination of photoelectrochemical water oxidation intermediates on haematite electrode surfaces using operando infrared spectroscopy. Nature Chemistry. 8(8). 778–783. 369 indexed citations
16.
Kobayashi, Wataru, et al.. (2014). Visualization of high-order dispersion for compression of few-cycle pulses. Applied Physics B. 116(3). 549–560. 1 indexed citations
17.
Ondersma, Jesse W. & Thomas W. Hamann. (2011). Measurements and Modeling of Recombination from Nanoparticle TiO2 Electrodes. Journal of the American Chemical Society. 133(21). 8264–8271. 103 indexed citations
18.
Martinson, Alex B. F., Thomas W. Hamann, Michael J. Pellin, & Joseph T. Hupp. (2008). New Architectures for Dye‐Sensitized Solar Cells. Chemistry - A European Journal. 14(15). 4458–4467. 245 indexed citations
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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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