OOIR: Observatory of International Research

Papers

(The median citation count of Clays and Clay Minerals is 2. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-08-01 to 2026-08-01.)

Article	Citations
Rare Earth and Critical Element Chemistry of the Volcanic Ash-fall Parting in the Fire Clay Coal, Eastern Kentucky, USA	94
Calcined Palygorskites as Supplementary Cementitious Materials	56
Comparison of Epithermal Kaolin Deposits from the Etili Area (Çanakkale, Turkey): Mineralogical, Geochemical, and Isotopic Characteristics	34
Stability of Gaomiaozi bentonite: Interlayer hydration structure and aggregation morphology	24
Sepiolite Rheology in Seawater: Divalent Cation-Driven Fiber Bundling Dominates over Bulk Ionic Strength Effects	20
Cronstedtite from the Salsigne mine, France: its composition and wide range of polytypes, twins, and allotwins	19
XPS characterization of benzethonium and cetylpyridinium-lauroyl sarcosinate-loaded organomontmorillonites and their antibacterial properties against Actinomyces viscosus	17
Mannitol extraction of adsorbed lithium from clay minerals: a tool for probing fluid Li-isotopic changes from past to present	16
Review of secondary phases formed under natural alkaline conditions at low temperatures and implications for cement–bentonite interactions in radioactive waste repositories	15
Effects of occurrence form of soil organic matter on the Atterberg limits and thermal conductivity of clays	13
Low-cost membrane supports for wastewater treatment made from local clay and calcite mixtures	13
Highly efficient TiO₂-pillared smectite clay with Ni and Co doping for Rhodamine B removal: kinetics of adsorption and photodegradation	12
Tungstate intercalated Mg-Al layered double hydroxide and its derived mixed metal oxide: preparation, characterization, and investigation of optical, electrical, and dielectric properties	12
The making of kaolinite suspension time-dependent in the structural rejuvenation mode – the face charge hypothesis	11
Mechanism of sand–bentonite barrier cushion consolidation–rebound deformation under diesel erosion	11
Influence of pH on the Hydrothermal Synthesis of Al-Substituted Smectites (Saponite, Beidellite, and Nontronite)	10
Development and Characterization of Sintered Zeolite and Zeolite-Kaolin Wick Structure for Thermosiphon Heat-Pipe Application	10
Experimental Peloid Formulation Using a Portuguese Bentonite and Different Mineral-Medicinal Waters Suitable for Therapeutic and Well-being Purposes	10
On the Unusual Temperature Dependence of Kaolinite Intercalation Capacity for N-methylformamide	10
Synthesis and Characterization of Non-leaching Inorgano- and Organo-montmorillonites and their Bactericidal Properties Against Streptococcus Mutans	9
A machine learning technique for estimating the zeta potential of clay minerals under various brine conditions	9
Montmorillonite as an Anti-Tuberculosis Rifampicin Drug Carrier: DFT and Experimental Study	9
Multidisciplinary insights into zeolite and clay formation in hydrothermally altered volcanic rocks of Çubuk, Turkey	9
Intercalation of the natural pigments, betalains, in a Tunisian smectitic clay: a green synthesis	9
Rare-Earth Minerals in Kaolin Ore, Mine Tailings, and Sands – Central Georgia, Upper Coastal Plain	8

A sustainable platform of polydopamine-functionalization of alkali-activated halloysite nanotubes for efficient β-glucosidase immobilization	8
Occurrence of Iron in the Minerals of Carboniferous Coal Gangue of the Pingshuo Open-pit Mine, North China	8
Characterization and crystal chemistry of four Brazilian dioctahedral smectites	8
Characterization Study of some Bauxite Deposits in Northern Brazil	8
In Memoriam: Selahattin Kadir 1956–2025	8
Smectite–brine–CO₂ interactions: effects of interlayer chemistry, brine concentration, CO₂ pressure, and temperature	8
The pH-dependent adsorption of Ni ²⁺ ions to sepiolite considering Ni precipitation	7
Molecular Dynamics Simulation of Pore-Size Effects on Gas Adsorption Kinetics in Zeolites	7
Determining the stoichiometric composition of Wyoming montmorillonite using improved transmission electron microscopy-energy dispersive X-ray (TEM-EDX) techniques	7
Mobility of essential macro- and micro-elements in interaction between artificial sweat and potential peloids of some saline lakes in Mongolia	7
Comparative study of the adsorption of tetracycline on clay minerals with various nanostructures: allophane, halloysite, and montmorillonite	7
Variation in the structural order of kaolinite in regolith as an effective indicator of REE mineralization	6
Transparent thin films of binaphthyl-derivative–smectite hybrids exhibiting circularly polarized luminescence	6
Role of clay cation exchange capacity, location of charge, and clay mineralogy on potassium availability in Indian Vertisols	6
Application of an improved TEM-EDS protocol based on charge balance for accurate chemical analysis of sub-micrometric phyllosilicates in low-grade metamorphic rocks	6
Mineralogical control on the leaching of potentially toxic elements and radionuclides from raw Moroccan clays	6
Ionic dissolution and structural evolution of chrysotile and lizardite at the mineral–water interface: reactions in sulfuric acid solution	6
Characterization and Assessment of Natural Amazonian Clays for Cosmetics-Industry Applications	6
Methods for Determination of the Layer Charge of Smectites: A Critical Assessment of Existing Approaches	6
Minerals for wastewater purification: a case study	6
Ceramics Properties of Indurated-Shale Quarry Wastes from Abakaliki, Southeastern Nigeria: Application as Raw Materials in Roofing-Tile Production	5
Compressibility Behavior of Bentonites by Stern Theory based on Constant Surface Charge Conditions	5
Unlocking the potential of V/Ti-AAC: a promising eco-friendly catalyst for cyclohexene epoxidation	5
The effects of bentonite characteristics and buffer solution composition on the adsorption of aflatoxin B1	5
Aflatoxin Adsorption by Natural and Heated Sepiolite and Palygorskite in Comparison with Adsorption by Smectite	5
Preparation and Corrosive Anion-curing Capability of Layered Double Hydroxide (LDH)/Montmorillonite Composites	5
Correction to: Formation of Humboldtine During the Dissolution of Hematite in Oxalic Acid – Density Functional Theory (DFT) Calculations and Experimental Verification	5
Microscopic observations of smectite cation exchange in the absence of free water: implications for the evolution of Mars sediments	5
Development of a Nanostructured Film Containing Palygorskite and Dermaseptin 01 Peptide for Biotechnological Applications	5
Thermal Analysis and Thermal Reactions of Smectites: a Review of Methodology, Mechanisms, and Kinetics	5
Crystallization between (100) Goethite and (001) Orientation of Hematite – A Review	5
Super-efficient Reduction of 4-nitrophenol Using Raw Pelagic Clays as Catalysts	5
Effects of the Inclusion of Ce and Ni Species on Ti for Modification of K10-Clay by Sol-Gel and their Use as Catalysts in the Liquid-Phase Esterification Systems	4
Investigating clay swelling and permeability impairment in sandstone formations during steam flooding	4
Carbon-doped clays as cost-effective and environmentally friendly supercapacitor electrode materials	4
Effect of pre-treatments on analcime synthesis from abundant clay-rich illite	4
Enhanced quality control and smectite quantification for bentonites in the Bavarian mining district based on layer charge measurement with the O-D method	4
Hydration structure and energetics of iron-exchanged montmorillonite	4
Effect of the SiO₂/Al₂O₃ Molar Ratio on the Microstructure and Properties of Clay-based Geopolymers: A Comparative Study of Kaolinite-based and Halloysite-based Geopol	4
Effect of a Water Phase on the Swelling Pressure and Water Retention of an Unsaturated Bentonite–Sand Mixture with Insignificant Osmotic Suction	4
Design Approaches, Functionalization, and Environmental and Analytical Applications of Magnetic Halloysite Nanotubes: A Review	3
Composite Nanoarchitectonics of LaNi_0.95Fe_0.05O₃/Muscovite for Enhanced Photocatalytic Activity	3
Synthesis of active clay catalyst by purification and acid activation of Iranian bentonite for olefin removal from aromatic compounds	3
Duane M. (Dewey) Moore (1933–2024)	3
Characterization of Iron-Rich Phyllosilicates Formed at Different Fe/Si Ratios	3
Experimental study on improving the swelling and shrinkage properties of expansive soil based on microbial promotion of mineral-phase change	3
Raw Materials Used in Traditional Pottery from Northern Morocco: Possible Alternative Material for a Sustainable Future in the Fran Ali Area	3
High-temperature-resistant organoclay via quaternary ammonium salt and silane co-modification for oil-based drilling fluids	3
Modification of the cation exchange population and CEC values of reacted bentonites of the third retrieved package of the alternative buffer material (ABM-5) experiment operated at up to 250°C	3
A New Preparation Method for cis-1,4-polyisoprene/Na-montmorillonite Latex Composites by in situ Solution Emulsification	3

Genesis of Smectites associated with a Coal Seams Succession in the Neogene Orhaneli and Keles Coal Deposits (Bursa), NW Turkey	3
Factors affecting the bleaching performance of thermally activated palygorskite and palygorskite-smectite clays from the Ventzia Basin, west Macedonia, Greece	3
Hydrophilic complexes and carbonation effects in alkali-activated clayey mudstone with press mud, an organic Ca/Fe-rich by-product of sugar refining	3
Mobility patterns of rare earth elements in diagenetically altered vitric tuff shaped by illite-smectite	3
Cs ⁺ adsorption mechanisms on todorokite: an MD simulation study bridging atomistic and macroscopi	2
Evolution of Alkali Release by an Illitic Rock for Use as Supplementary Cementitious Material	2
The role of illite in the global cycle of elements	2
Effect of temperature on the synthesis of g-C₃N₄/montmorillonite and its visible-light photocatalytic properties	2
A molecular dynamics simulation study of paraquat intercalated montmorillonite	2
Synthesis of Magnetic Sulfonated Carbon/Fe₃O₄/Palygorskite Composites and Application as a Solid Acid Catalyst	2
Physicochemical Variation of Clay Minerals and Enrichment of Rare Earth Elements in Regolith-hosted Deposits: Exemplification from The Bankeng Deposit in South China	2
Mineralogy, Chemistry, and Thermal and Surface Properties of Various Technological Types of K-Bentonite from the Dolná Ves Deposit (Kremnické vrchy Mts., Western Carpathians, Slovakia)	2
A Review of the Reactivity of Phosphatase Controlled by Clays and Clay Minerals: Implications for Understanding Phosphorus Mineralization in Soils	2
Geochemical and microbial indicators of smectite and zeolite formation in volcanic tuff from Pohang, South Korea	2
Development and characterization of organically grafted clay minerals for the removal of methylene blue from water	2
Influence of force field on clay–water contact angle determination using molecular dynamics	2
Low-order kaolinite from bauxite mine tailings in the Amazon as a precursor for geopolymers: mineralogical and mechanical properties	2