Sulfur (S) is a reactive nonmetal with atomic number 16: a neutral sulfur atom has 16 protons and 16 electrons. Atomic mass 32.06 u, electron configuration [Ne] 3s2 3p4. Sulfur is a bright yellow nonmetal known since ancient times, essential for life.
As of 2026-09-25 · the last 10 years
Sulfur’s current research intensity stands at about 74% of its all-time peak, a level that has remained stable since the window opened in 2016.
Research intensity ran from about 71% of the element's own all-time peak in 2016 to about 74% in 2026 — flat overall, with some movement in between, and the all-time peak (1959) lies before this window. Over the same span its share of research attention across all elements held steady. Among the 118 elements, sulfur has a larger-than-average research literature.
The number of papers involving the element rose from about 88,963 in 2016 to about 205,322 in 2025 (2.31x). That matches the growth of the literature as a whole over the same years: the general tide of scientific output, not a surge specific to the element.
The core of sulfur’s recent research is defined by Lithium-Sulfur Battery Cathode Materials and Polysulfide Conversion, a community where sulfur is central, appearing in about 82% of its papers. This field focuses on sulfur cathodes and efficient sulfur conversion processes, with work frequently involving carbon nanotubes and sodium sulfur systems. While it remains the largest single area, its share of sulfur-specific research has declined from about 25% in the first half of the window to about 20% recently. A key contribution here is a 2022 paper in Nature Energy on formulating energy density for practical lithium–sulfur batteries, cited over 980 times, alongside a 2024 Nature study establishing reaction networks in the 16-electron sulfur reduction reaction, cited over 560 times.
A second major area is Sulfur Species Detection and Fluorescent Probing in Biological Systems, where sulfur is also central, involved in about 59% of the community's papers. This research centers on reactive sulfur species, sulfane sulfur, and hydrogen sulfide, using these molecules as probes in biological contexts. The community’s share of sulfur research has remained steady at about 7%. Notable work includes a 2022 review in Physiological Reviews on the physiological roles of hydrogen sulfide, cited over 540 times, and a 2024 Chemical Reviews paper on activity-based fluorescent probes for hydrogen sulfide, cited over 210 times.
A smaller but distinct niche is Sulfur Isotopes and Magmatic Sulfide Deposits, a subcommunity within broader geochronology research. Here, sulfur is a minor presence, involved in only about 4% of the community's papers, but it is used as a critical tracer in these studies. These papers use sulfur isotope signatures to trace the magmatic origin and evolution of massive sulfide mineralization, often discussing sulfide deposits and volcanogenic massive systems. This area holds about 3% of sulfur’s recent research and has remained steady. A 2024 PNAS paper on mantle oxidation by sulfur driving gold deposit formation, cited about 47 times, exemplifies this geochemical application.
Overall, the composition of sulfur research has shifted slightly away from battery technologies, which have lost share, while the remainder of the field—comprising diverse areas like green synthesis and toxicology—has grown to hold about 69% of the element's recent research.
For a deeper look at sulfur’s current standing, see the Last 12 Months and Executive Brief reports.
What changed in the past year: new papers, shifting applications, emerging collaborators. See the momentum over a shorter window than the decade view.
Personal →See recent trends — Personal.
A by-topic status read of what changed and what's new — built for decision-makers, not search engines. Citation clusters, emerging applications, and the papers that matter most.
Professional →See the executive read — Professional.
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