Results 181 to 190 of about 11,676 (255)

Quantitative Determination of Iron Redox State in Copper–Iron–Silicate Slags by Electron Probe Microanalysis

Journal of the American Ceramic Society, Volume 109, Issue 6, June 2026.
The manuscript presents a quantitative approach for determining iron oxidation state in multicomponent silicate oxide systems through direct oxygen measurement by EPMA. The study provides experimentally validated data obtained under controlled equilibrium conditions. The methodology is intended to offer a broadly applicable framework for studying redox
Roman Starykh, Svetlana Sineva, Denis Shishin, Evgueni Jak   +3 more
wiley   +1 more source

Textured and Hierarchically Porous Hematite Photoanode for Efficient Hydrogen Production via Photoelectrochemical Hydrazine Oxidation. [PDF]

Nanomicro Lett
Tan R, Jeong YJ, Han HS, Kapse S, Shin SS, Zheng X, Cho IS.   +6 more
europepmc   +1 more source

Jadeite in Continental Subduction: Its Preservation, Breakdown and Pseudomorphic Replacement in Erzgebirge UHP Gneisses

Journal of Metamorphic Geology, Volume 44, Issue 5, Page 376-393, June 2026.
ABSTRACT The absence of jadeite in regions where subduction of continental crust has been documented by other high‐pressure (HP) or ultrahigh‐pressure (UHP) minerals is striking. This study presents only the second discovery of jadeite in the crystalline rocks of the Erzgebirge, a region known for its occurrences of microdiamond, coesite and omphacite ...
Ondrej Lexa, Martin Racek, Petr Jeřábek, Benjamin Paddon   +3 more
wiley   +1 more source

Augmentation of psychrophilic anaerobic digestion with psychrotolerant <i>Serratia marcescens</i>, calcium phosphate (CaHPO₄·2H₂O) and hematite (α-Fe₂O₃) nano-additives. [PDF]

Front Microbiol
Rama H, Ndaba B, Dhlamini MS, Maaza M, Cochrane N, Roopnarain A.   +5 more
europepmc   +1 more source

Microbially generated ferruginous crusts: A potential biosignature of continental input in coastal settings

Sedimentology, Volume 73, Issue 4, Page 1225-1243, June 2026.
ABSTRACT Thin ferruginous sandy crusts are common on top of sandstone beds in the Early Permian post‐glacial deposits of the Paraná Basin in southern Brazil. These crusts usually preserve wrinkle structures, suggesting that they might be a product of microbial mediation.
Patrícia Weschenfelder, Renata Guimarães Netto, Alisson Klayton Martins   +2 more
wiley   +1 more source

Green synthesis of magnetite (Fe₃O₄) and hematite (Fe₂O₃) nanoparticles using Moringa oleifera and Psidium guajava leaf extracts for sustainable applications. [PDF]

Sci Rep
Begum SK, Shabnam D, Haque N, Alam MJ, Ferdous J, Nur UJB, Fatema K, Shabiha RJ, Clarke RJ, Chowdhury P, Uddin MN.   +10 more
europepmc   +1 more source

Facet-dependent Heterogeneous Fenton Reaction Mechanisms on Hematite Nanoparticles for (Photo)catalytic Degradation of Organic Dyes. [PDF]

Adv Sci (Weinh)
Chen P, Song D, Liu T, Chen Y, Zhou Y, Prange MP, Chen T, Wang DZ, Zhao Y, Wang X, Li X, Wang D, Zhu Z, Wang Z, Rosso KM, Zhang X.   +15 more
europepmc   +1 more source

Constructing an S-Scheme Heterojunction of Hematite with an Oxygen-Deficient Double Perovskite Co-Catalyst for Photoelectrochemical Water Splitting. [PDF]

Small
Kim H, Park J, Ghule BG, Kang J, Gyeong SG, Jang JH.   +5 more
europepmc   +1 more source

Characterisation and properties of metahalloysite-based geopolymer composites with micro/nano-Fe₃O₄ contents: effect of the mixing procedure. [PDF]

RSC Adv
Kaze RC, Donkeng-Dazie J, Naghizadeh A, Chaouche M.   +3 more
europepmc   +1 more source

Mechanisms Governing the Stability of Fe-As Complexes: Roles of Environmental and Material Intrinsic Factors. [PDF]

Toxics
Yang Z, Ouyang T, Su S, Wang Y, Yao F, Ding Z, Yan M, Zeng X.   +7 more
europepmc   +1 more source