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Topic · Renewable Energy, Sustainability and the Environment

Iron oxide chemistry and applications

Iron oxide chemistry and applications is a research topic within Renewable Energy, Sustainability and the Environment. Science Explorer counts 26k research works in it since 1950. 10.0% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on the advancements in solar water splitting technology, particularly the use of hematite-based photoelectrodes and nanostructures for efficient photoelectrochemical water splitting. The research covers topics such as surface charging, catalysis, nanostructure design, and the role of various dopants in improving the efficiency of solar water splitting.

  • Hematite
  • Photoelectrodes
  • Water Splitting
  • Nanostructures
  • Photoelectrochemical
  • Solar
  • Nanorods
  • Catalysis
  • Surface Charging
  • Photooxidation
Research works
26k
fractional, since 1950
In the world top 10%
2.6k
per year above
Top-10% rate
10.0%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
-10%
the tick is no change
Largest producer
China
44% of the 10 largest, 2022-now
Iron oxide chemistry and applications

Which countries lead Iron oxide chemistry and applications research?

By volume, China and India publish the most (1.2k and 427 works in 2022-now).

By volume, 2022-now

  1. 1 China 1.2k works
  2. 2 India 427 works
  3. 3 United States 287 works
  4. 4 Brazil 175 works
  5. 5 France 135 works
  6. 6 Germany 134 works
  7. 7 Russia 125 works
  8. 8 Japan 118 works
  9. 9 South Korea 103 works
  10. 10 Iran 73 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

China: 43.9%India: 15.2%United States: 10.2%Brazil: 6.2%6 others listed: 24.4%44%largest
China1,234 · 43.9%India427 · 15.2%United States287 · 10.2%Brazil175 · 6.2%6 others listed686 · 24.4%

Shares of the rows listed above, not of the whole node.

Which institutions lead Iron oxide chemistry and applications research?

By volume in 2022-now, Chinese Academy of Sciences publishes the most Iron oxide chemistry and applications research, followed by Centre National de la Recherche Scientifique and Russian Academy of Sciences.

By volume, 2022-now

  1. 1 Chinese Academy of SciencesChina 97 works
  2. 2 Centre National de la Recherche ScientifiqueFrance 70 works
  3. 3 Russian Academy of SciencesRussia 54 works
  4. 4 Central South UniversityChina 50 works
  5. 5 Helmholtz Association of German Research CentresGermany 30 works
  6. 6 Kunming University of Science and TechnologyChina 27 works
  7. 7 University of Chinese Academy of SciencesChina 19 works
  8. 8 Northeastern UniversityChina 19 works
  9. 9 China University of GeosciencesChina 18 works
  10. 10 Consejo Superior de Investigaciones CientíficasSpain 15 works

Who are the leading researchers in Iron oxide chemistry and applications?

The most-cited researchers publishing on Iron oxide chemistry and applications include Zhong Lin Wang, Michaël Grätzel and Salim Yusuf.

  1. 1 Zhong Lin Wang United States 491k citations
  2. 2 Michaël Grätzel Switzerland 458k citations
  3. 3 Salim Yusuf Canada 294k citations
  4. 4 Wei Huang China 267k citations
  5. 5 Jens K. Nørskov Denmark 260k citations
  6. 6 Kai You Wang China 224k citations
  7. 7 Younan Xia United States 207k citations
  8. 8 Jiaguo Yu China 207k citations
  9. 9 Guangming Zeng China 204k citations
  10. 10 Hua Zhang Singapore 196k citations

Ranked by citations received across their whole record, among researchers with at least three works on this topic.

What are the most cited papers in Iron oxide chemistry and applications?

The most cited paper in Iron oxide chemistry and applications is "Magnetic Iron Oxide Nanoparticles: Synthesis, Stabilization, Vectorization, Physicochemical Characterizations, and Biological Applications" (Sophie Laurent, Delphine Forge, Marc Port et al., 2008), with 6,788 citations. Next come "Synthesis and surface engineering of iron oxide nanoparticles for biomedical applications" (6,765) and "Analysis of XPS spectra of Fe2+ and Fe3+ ions in oxide materials" (6,712).

Most cited papers
#PaperReleasedCitations
1 Magnetic Iron Oxide Nanoparticles: Synthesis, Stabilization, Vectorization, Physicochemical Characterizations, and Biological Applications Sophie Laurent, Delphine Forge, Marc Port et al. · Chemical Reviews Review Jun 2008 6,788
2 Synthesis and surface engineering of iron oxide nanoparticles for biomedical applications Ajay Kumar Gupta, Mona Sethi Gupta · Biomaterials 11 Dec 2004 6,765
3 Analysis of XPS spectra of Fe2+ and Fe3+ ions in oxide materials Toru Yamashita, Peter C. Hayes · Applied Surface Science Oct 2007 6,712
4 Iron Oxide Removal from Soils and Clays by a Dithionite-Citrate System Buffered with Sodium Bicarbonate O. P. Mehra, M. L. Jackson · Clays and clay minerals (National Conference on Clays and Clay Minerals) Conference paper Feb 1958 4,275
5 Ultra-large-scale syntheses of monodisperse nanocrystals Jongnam Park, Kwangjin An, Yosun Hwang et al. · Nature Materials 28 Nov 2004 4,072
All 99 most cited papers, with filters and sorting

Where is Iron oxide chemistry and applications research done?

The largest centres of Iron oxide chemistry and applications research in 2022-now are Beijing (China), Changsha (China), Wuhan (China) and Nanjing (China). Among places with at least 20 works in it, it is an unusually large share of all research in Kunming.

Largest cities, 2022-now

  1. 1 BeijingChina 205 works
  2. 2 ChangshaChina 73 works
  3. 3 WuhanChina 68 works
  4. 4 NanjingChina 64 works
  5. 5 GuangzhouChina 60 works
  6. 6 ParisFrance 48 works
  7. 7 ShanghaiChina 48 works
  8. 8 MoscowRussia 42 works
  9. 9 ShenyangChina 38 works
  10. 10 KunmingChina 36 works

Where it is the local speciality

  1. KunmingCN · 35.6 works4.2×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Iron oxide chemistry and applications than the world average.

See Iron oxide chemistry and applications on the map

Where is the best place to study Iron oxide chemistry and applications?

Among universities, judged by research, Ulsan National Institute of Science and Technology, Central South University and Kunming University of Science and Technology score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%25%50%75%mean 22.06%fractional works in this field (log) →share of work in the world top 10% →Ulsan National Insti…Kunming University o…Central South Univer…China University of …
above the meannear itbelow it

One dot per university in the first ten of the table below, at the default weights. The upper left is the interesting corner: small places doing unusually strong work.

Excellenceshare of its work in the world top 10%, 2022-now and all time averaged
40%
Specialisationhow much of its work is in this field, counted up to 10× the world share
10%
Sizeits output in this field, on a log scale
30%
Growthoutput growth, counted from -20% to +20%
10%
Internationalshare of its work with a co-author abroad
10%
Each slider sets a weight; the share it gets of the score is beside it.
#UniversityScoreTop 10%SpecialisationWorksGrowth
1Ulsan National Institute of Science and TechnologySouth Korea 67.267.3%18.9×10 +21.7%
2Central South UniversityChina 54.213.2%7.3×50 +2.9%
3Kunming University of Science and TechnologyChina 50.318.4%13.5×27 +87.9%
4China University of GeosciencesChina 42.19.8%11.2×18 +93.6%
5King Saud UniversitySaudi Arabia 39.419.5%3.0×10 +33.9%
6Tongji UniversityChina 38.320.0%2.6×14 +44.2%
7Northeastern UniversityChina 38.229.4%6.0×19 -16.6%
8China University of Geosciences (Beijing)China 37.67.2%14.8×15 +33.7%
9ETH ZurichSwitzerland 37.316.5%3.8×9 +15.8%
10China University of Mining and TechnologyChina 37.019.3%5.4×15 +11.9%

Universities only. The score blends excellence (40%), size (30%), specialisation (10%), growth (10%), international reach (10%), 2022-now; growth compares 2018-21 with 2022-25 and counts up to +20%, since a jump from a small base is mostly noise.

Every institution in Iron oxide chemistry and applications, country by country

Is Iron oxide chemistry and applications research growing?

Output in 2022-2025 was 10% lower than in 2018-2021, peaking in 2018.

still counting19801990200020102020
grewheldshrank

The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Iron oxide chemistry and applications as a percentage of every work published that year, 0.013% in 2024.

still counting0.020%0.040%0.060%Iron oxide chemistry and applications0.016% in 202519801990200020102020

Fractional works of Iron oxide chemistry and applications over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year.

still counting5%10%15%Iron oxide chemistry and applications10.2% in 2025200020102020

Of each year's works in it, the share that reached the world's 10% most cited for their field and year. A field is the world for its own topics, so there is no other line to hold it against.

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.

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