Results 131 to 140 of about 11,716 (244)

Synthesis and microstructural properties of Pt-decorated α-Fe₂O₃ nanotubes for hydrogen gas sensing applications. [PDF]

RSC Adv
Šoltić M, Gracheva M, Baran N, Dražić G, Peter R, Lázár K, Štefanić G, Marciuš M, Novosel N, Kiss LF, van Spronsen MA, Ivanda M, Klencsár Z, Gotić M.   +13 more
europepmc   +1 more source

Recycling of Mill Scale Into High‐Purity Iron Through Hydrogen‐Based Reduction

steel research international, Volume 97, Issue 8, Page 4162-4175, August 2026.
Mill scale, an iron oxide–rich steel by‐product, is difficult to recycle due to impurities. This study evaluates hydrogen‐based direct reduction and hydrogen plasma smelting reduction as low‐carbon recycling routes. Impurity segregation limits reduction kinetics. Direct reduction achieves 92% conversion in 180 min, while plasma reduction reaches 91% in
Nathalia C. Verissimo, Anumoy Ganguly, Lucas Varoto, Tim M. Schwarz, Jean‐Baptiste Letz, Ubaid Manzoor, Laurine Choisez, Dierk Raabe, Isnaldi R. Souza Filho   +8 more
wiley   +1 more source

Machine learning interatomic potential for the structural properties of iron oxides. [PDF]

Sci Rep
Torres A, de Oliveira AB, Barbosa MDS, Lelovsky LV, Resende VG, Dutra FC, Pimenta FV, Parreira FV, de Melo Souza A, Matos MJS, Rocha AR.   +10 more
europepmc   +1 more source

Influence of an Electromagnetic Field on Direct Reduction of Iron Oxide Using Hydrogen as a Reducing Agent

steel research international, Volume 97, Issue 8, Page 4119-4125, August 2026.
This study investigates the reduction of pure iron oxides and industrial iron ore using hydrogen gas as a reducing agent. Additionally, to determine whether the reduction process can be accelerated, electromagnetic fields of 50 Hz and 25 kHz were applied.
Mykyta Levchenko, Oleksandr Gryshyn, Oleksandr Velychko, Oleksandr Grek, Anzhela Nadtochiy, Olena Volkova   +5 more
wiley   +1 more source

Recovery of Ferromagnetic Hematite Submicron Particles from Pyrrhotite Ash and Comprehensive Study of Their Structural, Morphological, and Magnetic Properties. [PDF]

ACS Omega
Esshouba Y, Mahfoud T, Tamraoui Y, Hlil EK, El Moussaoui H, El Achaby M.   +5 more
europepmc   +1 more source

Feasibility of Red Mud Recycling via Hydrogen Plasma Smelting Reduction: Insights From Large‐Scale Laboratory Experiments

steel research international, Volume 97, Issue 8, Page 4351-4362, August 2026.
Red mud processing in a laboratory hydrogen plasma facility, exceeding one hundred grams of input material, to evaluate the first scale‐up steps for iron recovery. This study demonstrates the feasibility of red mud reduction and the removal of harmful elements.
Daniel Ernst, Jürgen Erich Platl, Daniela Pircher, Magdalena Kirchmair, Lukas Kölbl, Johannes Schenk, Susanne Michelic   +6 more
wiley   +1 more source

Fungal-Mineral Interaction: Astrobiology Insights from Iron-Rich Mineral Alteration by an Extremophile Black Fungus. [PDF]

JACS Au
Dos Santos A, Molodon F, Schultz J, P M da Silva Alves MA, Rosado AS, Konhauser K, Rodrigues-Filho E, Yeşilbaş M.   +7 more
europepmc   +1 more source

Visualizing Magnetostructural Order in Rare‐Metastable Polymorph ε‐Fe2O3 Through Domain‐Resolved Raman Spectroscopy

Small Structures, Volume 7, Issue 8, August 2026.
Raman mapping of CVD‐grown ε‐Fe2O3 flakes reveals a sixfold magnetostructural domain pattern arising from rotational twinning. A symmetry‐sensitive phonon mode encodes magnetic order, enabling noninvasive imaging of ferrimagnetic domains across cryogenic to near‐Curie temperatures.
Ikhwan Nur Rahman, Min Choi, Gwang Hwi An, Qoimatul Mustaghfiroh, Seungjae Lim, Jae‐Ung Lee, Dong‐Hyun Kim, Hyun Seok Lee   +7 more
wiley   +1 more source

Phase Transformations During Softening of Iron Ore Sinter of Varying Basicity in the CaO-SiO₂-FeO System. [PDF]

Materials (Basel)
Vyaznikova EA, Dmitriev AN, Vitkina GY, Katayev VV.   +3 more
europepmc   +1 more source

Features in the Visible Spectra of the Enceladus Particle Plume and E Ring: Potential Evidence of Organic Materials and/or Missing Sub‐Micron Particles

Journal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
Abstract Visible spectra of the Enceladus particle plume and E ring contain evidence for a change in spectral slope around 0.5 μm. This feature can be seen in data obtained by both the Visual and Infrared Mapping Spectrometer and Imaging Science Subsystem onboard the Cassini Spacecraft, and is consistent with the slope change seen in the surface ...
M. M. Hedman, S. M. MacKenzie
wiley   +1 more source