Carbon Fragments Research Articles

Characterization of Cenospheres from Malaysian Coal Generated Power Plants: Jimah, Kapar and Manjung

Cenosphere is a component of fly ash (FA) and has been used as part of sustainable material in wastewater treatment, automotive, ceramic, and construction industries due to its properties. This research presents the first study on characterization of cenospheres from Malaysian power plants namely Jimah, Kapar and Manjung. The characterization was conducted via X-ray fluorescence (XRF), particle size analyzer (PSA), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The XRF analysis consisted of oxides elements ranged from 14.70 to 22.63% (aluminum oxide, Al<sub>2</sub>O<sub>3</sub>), 3.78 to 13.44% (calcium oxide, CaO), 34.73 to 57.67% (silicon dioxide, SiO<sub>2</sub>), 0.42 to 1.07% (sulphur trioxide, SO<sub>3</sub>), 9.09 to 24.92% (iron oxide, Fe<sub>2</sub>O<sub>3</sub>), 3.62 to 3.67% (potassium oxide, K<sub>2</sub>O), 1.76 to 4.24% (titanium oxide, TiO<sub>2</sub>) and 0.16 to 0.93% (magnesium oxide, MgO). The classifications of cementitious materials by American Standard of Testing Materials were Class F (Jimah, Kapar) and Class C (Manjung). The classification represents the quality and capability of cementitious materials as cement replacement material, additive, and filler in concrete mix. The sizes of cenospheres were Kapar > Jimah > Manjung. The sizes of cenosphere were found to be larger than FA (Jimah: 2.720-49.21 μm, Kapar: 5.069-98.29 μm, Manjung: 1.084-3.986 μm). Cenospheres contained quarts (Jimah, Kapar, Manjung: 26°) and silicates (Kapar, Manjung: 45°). Ferrospheres, cenospheres, aluminosilicate-spheres, plerospheres and carbon fragments were observed. The cenosphere from Manjung showed high quality as cement replacement material, additive, and filler with 13.44% of CaO.

Porous silicon covalently-grafted with chloro-styrenic carbons for fast Li+ diffusion and durable lithium-storage capability

Silicon-based anode materials have critical issues such as drastic volume changes, huge stress generation, and the thickening of solid‒electrolyte interphase layer. Thus, a new strategy for improving silicon interface is necessary for significantly enhanced Li+ ion transportation and structural stability during prolonged cycling, while simultaneously reducing severe side reactions. Herein, we prepared porous silicon particles covalently linked with styrene-based polymers (polystyrene (PS) and poly(4-chlorostyrene) (PCS)) via a facile non-atmospheric thermolytic process at a low-temperature (≤400 °C), in which the decomposed styrenic carbon fragments are covalently grafted on the silicon surface via Si–O–C and Si–C species. Notably, PCS-grafted porous silicon exhibited the significantly enhanced electrochemical performance (i.e., a high rate capability of 1270 mAh g−1 at 20 A g−1, 90.7% of initial capacity at 4 A g−1, and a reversible capacity of 1725 mAh g−1 after 200 cycles), because of the dual covalent linkages of Si–C and Si–O–C species in chloro-styrenic carbons that provide durable lithium storage capability and fast Li+ transportation. Specifically, the Si–C linkage enforced the formation of a durable interlayer that protects the Si active material from reactive electrolytes, and the polarized Si–O–C linkage facilitates the rapid transport of Li+ ions.

Self-assemble Au@amorphous-C/fullerene-like-C core-shell nanocomposite film with near-elastic response

The well-known integration of outstanding optical, electronic, and catalytic properties enables Au nanomaterials to be applied in various fields, however, the intrinsically easy plastic flow of Au nanomaterials results in insufficient mechanical durability. Herein, the strategy of assembling core-shell structure to enclose Au nanoparticles is presented to tune the mechanical response for enhancing durability. Under the impact of the catalytic property of Au nanoparticles, the unique nanoshell containing the curved fullerene-like carbon (FL-C) fragments and amorphous carbon (a-C) tissue can self-assemble around Au nanoparticles and encapsulate adjacent Au nanocores, forming the [email protected]/FL-C core-shell structure via co-sputtering method. Compared to pure Au film, such self-assemble [email protected]/FL-C film can transform the mechanical response from plastic flow to the desirable near-elastic response. Additionally, the novel [email protected]/FL-C structure also endows favorable properties such as high strength (∼13.7 GPa), high elastic recovery (∼90%), and low wear rate (1.51 × 10−7 mm3/Nm), which are even superior to the traditionally considered protective-lubricating a-C film. The structural characteristic of [email protected]/FL-C film can provide a route to design Au-based materials with enhanced strength, near-elastic response, and high durability for resisting wear.

Reductive Cross-Coupling of Unreactive Electrophiles.

Transition-metal-catalyzed reductive coupling of electrophiles has emerged as a powerful tool for the construction of molecules. While major achievements have been made in the field of cross-couplings between organic halides and pseudohalides, an increasing number of reports demonstrates reactions involving more readily available, low-cost, and stable, but unreactive electrophiles. This account summarizes the recent results in our laboratory focusing on this topic. These findings typically include deoxygenative C-C coupling of alcohols, reductive alkylation of alkenyl acetates, reductive C-Si coupling of chlorosilanes, and reductive C-Ge coupling of chlorogermanes.The reductive deoxygenative coupling of alcohols with electrophiles is synthetically appealing, but the potential of this chemistry remains to be disclosed. Our initial study focused on the reaction of allylic alcohols and aryl bromides by the combination of nickel and Lewis acid catalysis. This method offers a selectivity that is opposite to that of the classic Tsuji-Trost reactions. Further investigation on the reaction of benzylic alcohols led to the foundation of a dynamic kinetic cross-coupling strategy with applications in the nickel-catalyzed reductive arylation of benzylic alcohols and cobalt-catalyzed enantiospecific reductive alkenylation of allylic alcohols. The titanium catalysis was later established to produce carbon radicals directly from unactivated tertiary alcohols via C-OH cleavage. The development of their coupling reactions with carbon fragments delivers new methods for the construction of all-carbon quaternary centers. These reactions have shown high selectivity for the functionalization of tertiary alcohols, leaving primary and secondary alcohols intact. Alkenyl acetates are inexpensive, stable, and environmentally friendly and are considered the most attractive alkenyl reagents. The development of reductive alkylation of alkenyl acetates with benzyl ammoniums and alkyl bromides offers mild approaches for the conversion of ketones into aliphatic alkenes.Extensive studies in this field have enabled us to extend the cross-electrophile coupling from carbon to silicon and germanium chemistry. These reactions harness the ready availability of chlorosilanes and chlorogermanes but suffer from the challenge of their low reactivity toward transition metals. Under reductive nickel catalysis, a broad range of alkenyl and aryl electrophiles couple well with vinyl- and hydrochlorosilanes. The use of alkyl halides as coupling partners led to the formation of functionalized alkylsilanes. The C-Ge coupling seems less substrate-dependent, and various common chlorogermanes couple well with aryl, alkenyl, and alkyl electrophiles. In general, functionalities such as Grignard-sensitive groups (e.g., acid, amide, alcohol, ketone, and ester), acid-sensitive groups (e.g., ketal and THP protection), alkyl fluoride and chloride, aryl bromide, alkyl tosylate and mesylate, silyl ether, and amine are tolerated. These methods provide new access to organosilicon and organogermanium compounds, some of which are challenging to obtain otherwise.

Diborylmethyl Group as a Transformable Building Block for the Diversification of Nitrogen‐Containing Molecules

The development of new approaches to installing diverse carbon fragments to a nitrogen atom has attracted considerable attention in chemical science. While numerous strategies have been devised to forge C(sp3 )-N bonds, one conceptually powerful and straightforward approach is to insert a transformable sp3 -carbon unit onto a nitrogen atom for modular diversification. Here we describe the successful synthesis of halo-diborylmethanes and their applications to the preparation of nitrogen-substituted diborylmethanes through their homologative coupling with a variety of nitrogen nucleophiles including biologically relevant molecules. This process exhibits a remarkably broad substrate scope, and the usefulness of the obtained compounds is demonstrated by the modular diversification of the diborylmethyl group to access various nitrogen-containing molecules.

Diborylmethyl Group as a Transformable Building Block for the Diversification of Nitrogen‐Containing Molecules

AbstractThe development of new approaches to installing diverse carbon fragments to a nitrogen atom has attracted considerable attention in chemical science. While numerous strategies have been devised to forge C(sp3)−N bonds, one conceptually powerful and straightforward approach is to insert a transformable sp3‐carbon unit onto a nitrogen atom for modular diversification. Here we describe the successful synthesis of halo‐diborylmethanes and their applications to the preparation of nitrogen‐substituted diborylmethanes through their homologative coupling with a variety of nitrogen nucleophiles including biologically relevant molecules. This process exhibits a remarkably broad substrate scope, and the usefulness of the obtained compounds is demonstrated by the modular diversification of the diborylmethyl group to access various nitrogen‐containing molecules.

Specific size distributions of elemental and organic carbon, and polycyclic aromatic hydrocarbons emitted from petrol engine using two fuel grades.

The most common commercial oils in the Chinese market are two petrol types with octane levels of 93 and 97. To determine the source spectrum of air pollutant emissions, we herein investigated the specific emission sizes of the total suspended particles (TSP), total carbon (TC), elemental carbon (EC), organic carbon (OC), and polycyclic aromatic hydrocarbons (PAHs) from a petrol engine fueled with 93# and 97# petrol in 2016 (based on Chinese national IV gasoline standard). We found that while 93# emitted a higher TSP content, 97# emitted greater TC, EC, OC, and PAHs. The highest carbon contents were found in the < 0.25µm and 0.44-1.0µm size fractions for the 93# and 97# petrol, respectively. OC content showed a significant positive correlation with EC, and EC2 (at 740 ℃) was the main carbon fragment in both petrol exhausts. The highest PAH content occurred in the 0.25-0.44µm size-bin, differing from the results for TC, EC, and OC, and medium molecular weight (4 rings) PAHs were the primary component in the emissions. These results indicate that fuel composition and octane sensitivity have a prominent effect on the size distributions of TC (including EC, OC, and PAHs). Thus, more studies on the carbon content at specific emission sizes in petrol exhaust should be conducted to clarify the main factors impacting these variations.

Thermal Metathesis of C–C Single Bonds Induced by Steric Frustration

Abstract Examples of σ-bond metathesis are significantly limited when compared with those of alkene metathesis. This report presents a metathesis reaction of carbon–carbon single bonds. It proceeds through homolytic carbon–carbon bond cleavage, which is facilitated by steric frustration operating between two bulky carbon fragments. Of note is that simple heating is enough, and neither transition metal catalysts nor reagents are required.

Influence of rapid laser heating on differently matured soot with double-pulse laser-induced incandescence

For accurate laser-induced incandescence (LII) measurements of soot properties it is of great importance to understand the nature of the physical processes involved during rapid laser heating. In this work, we investigate how well-characterized differently matured fresh soot from a soot generator responds to rapid laser heating. For this purpose, a double-pulse LII setup is used with 10 μs time separation between the pulses using various combinations of two common LII wavelengths (532 and 1064 nm). Detection is performed at two wavelength bands for fluorescence analysis, and additionally elastic light scattering is used for mass loss analysis during heating. We investigate how the LII signal changes with pre-heating laser energy, specifically by fluence curve analysis to estimate the influence of thermal annealing, sublimation and laser-induced fluorescence interference. It is shown that extensive absorption enhancement occurs for all types of soot as the soot is thermally annealed, which is manifested through decreasing dispersion coefficient ξ and an increasing absorption coefficient E(m,λ). When comparing young and mature soot, a much larger impact of sublimation can be observed in the fluence curves of the mature soot. Also, we observe an enhanced contribution of laser-induced fluorescence for the young soot when performing LII measurements using 532 nm, which is suggested to originate from vaporized carbon fragments with an aromatic structure. This work further shows the potential of utilizing double-pulse arrangements for increasing the detectability of poorly absorbing soot, but also it highlights the impact of laser heating on soot, which may be important to avoid interferences when performing soot diagnostics.

Insight into the formation mechanism of N, P co-doped mesoporous biochar from H3PO4 activation and NH3 modification of biomass

Understanding the formation mechanism of N, P co-doped biochar is critical for preparation of ideal N, P co-doped biochar materials. In this study, N, P co-doped mesoporous biochar was prepared by H3PO4 activation and NH3 modification of biomass. Results showed that, during H3PO4 activation, H3PO4 preferentially reacted with active O-containing groups in biomass. With increase of H3PO4 amount, H3PO4 mainly reacted with carbon fragments. This process removed large amounts of oxygen and carbon of biomass, meanwhile formed lots of vacancies, and then H3PO4 introduced abundant phosphorus (8.95 wt%) and new oxygen into P-doped biochar, accompanying generation of developed mesoporous structure (1089.33 m2/g). P-containing groups introduced were mainly C3-P-O, C-P-O and C-O-P groups. During NH3 modification, NH3 preferentially reacted with PO groups to form amine/amide-N, and then most of them converted into stable pyridinic-N, pyrrolic-N, or NP groups, meanwhile some N-containing groups would further convert into more stable quaternary-N. This process promoted decrease of C3-P-O and C-P-O groups, and formed more PN groups. It introduced abundant nitrogen (12.21 wt%), accompanying generation of more mesopores. At last, possible chemical reaction pathways of H3PO4 activation, and chemical reaction pathways between NH3 and P-containing groups during NH3 modification were proposed for the first time.

A Silyl Sulfinylamine Reagent Enables the Modular Synthesis of Sulfonimidamides via Primary Sulfinamides.

A new N-silyl sulfinylamine reagent allows the rapid preparation of a broad range of (hetero)aryl, alkenyl, and alkyl primary sulfinamides, using Grignard, organolithium, or organozinc reagents to introduce the carbon fragment. Treatment of these primary sulfinamides with an amine in the presence of a hypervalent iodine reagent leads directly to NH-sulfonimidamides. This two-step sequence is straightforward to perform and provides a modular approach to sulfonimidamides, allowing ready variation of both reaction components, including primary and secondary amines.

Development of Pedotransfer Functions to Predict Soil Physical Properties in Southern Quebec (Canada)

Pedotransfer functions (PTFs) are empirical fits to soil property data and have been used as an alternative tool to in situ measurements for estimating soil hydraulic properties for the last few decades. PTFs of Saxton and Rawls, 2006 (PTFs’S&amp;R.2006) are some of the most widely used because of their global aspect. However, empirical functions yield more accurate results when trained locally. This study proposes a set of agricultural PTFs developed for southern Quebec, Canada for three horizons (A, B, and C). Four response variables (bulk density (ρb), saturated hydraulic conductivity (Ksat), volumetric water content at field capacity (θ33), and permanent wilting point (θ1500)) and four predictors (clay, silt, organic carbon, and coarse fragment percentages) were used in this modeling process. The new PTFs were trained using the stepwise forward regression (SFR) and canonical correlation analysis (CCA) algorithms. The CCA- and SFR-PTFs were in most cases more accurate. Θ1500 and at θ33 estimates were improved with the SFR. The ρb in the A horizon was moderately estimated by the PTFs’S&amp;R.2006, while the CCA- and SFR-PTFs performed equally well for the B and C horizons, yet qualified weak. However, for all PTFs for all horizons, Ksat estimates were unacceptable. Estimation of ρb and Ksat could be improved by considering other morphological predictors (soil structure, drainage information, etc.).

Quantification of Buckminsterfullerene (C60) in non-graphitizing carbon and a microstructural comparison of graphitizing and non-graphitizing carbon via Small Angle Neutron Scattering

In this article we present the first experimental evidence confirming a global presence of Buckminsterfullerene (C60) in non-graphitizing polymeric carbon, along with its volume fraction calculations. Partially stacked carbon fragments featuring weak or strong curvatures constitute the structural units in non-graphitizing carbons. It has been proposed that a certain fraction of completely closed spherical fullerenes, such as C60, is also present in these materials. Strongly curved structures are not expected to exist in graphitizing carbons. We report on a Small Angle Neutron Scattering (SANS) investigation conducted at the Institut Laue-Langevin, Grenoble, France, that enables us to (i) quantify C60 in a non-graphitizing carbon, (ii) investigate the evolution patterns of graphitizing and non-graphitizing carbons, and (iii) perform a detailed SANS analysis of pure crystalline C60 in dry powder form. We also revisit the formation patterns of slightly larger structures (3–5 nm) such as graphitic crystallites and voids in both classes of polymeric carbon. These results provide a strong evidence in support of the fullerene-like microstructural models of non-graphitizing carbon, adding that the curved structural units are not just “fullerene-like”, but also spherical fullerenes, C60 in particular.

Spatially Confined CVD Growth of High‐Density Semiconducting Single‐Walled Carbon Nanotube Horizontal Arrays

AbstractHigh‐density horizontally aligned single‐walled carbon nanotube (SWNT) arrays with high‐purity semiconducting tubes are promising materials for energy‐efficient electronics. However, realizing high density and high semiconducting purity through the direct‐growth method is still a challenge. Here the problem is overcome through a spatially confined approach based on a floating solid catalyst chemical vapor deposition (FSCCVD) system. A confined space is designed to change the fluid dynamics in a chemical vapor deposition reactor, offering a trapping effect for both catalyst nanoparticles and carbon fragments. Therefore, densely and uniformly distributed catalyst nanoparticles are continuously deposited on substrates, greatly increasing the growth probability and efficiency of SWNTs. Besides, the solid catalyst TiC and the oxygen‐vacancy‐enriched catalyst TiO both facilitate the growth of semiconducting tubes. As a result, SWNT horizontal arrays with a high density of 65 tubes µm−1 and a semiconducting purity of &gt;95% are realized, which hold the potential for future application in carbon nanotube electronics.

Catching the elusive chiral nitrogen compound

The world of chirality, or the handedness of a molecule, is dominated by controlling how atoms and functional groups are arranged around a central carbon. Until now, there hasn’t been a straightforward way for chemists to make compounds with chiral nitrogen centers, which are important in drugs and biologically active molecules. Matthew Kitching and colleagues at Durham University have found that adding a carbon fragment to an amine and binding the resulting ammonium to a common chiral compound gives chiral N compounds in high specificity, in a single-pot reaction ( Nature 2021, DOI: 10.1038/s41586-021-03735-5 ). “Most people don’t think about an amine being chiral because it rapidly interconverts,” Kitching says. The lone electron pair that gives amines their typical trigonal pyramidal shape can tunnel through the N center, flipping the molecule inside out like an umbrella in a windstorm. By treating an amine with an alkyl bromide compound, Kitching’s team

Study on the biological behaviors of Ca[sbnd]P coatings with different morphology on carbon/carbon composites

In this work, we designed and fabricated a CaP composite bio-coating with different surface morphologies on a carbon/carbon (C/C) matrix by means of hybrid supersonic atmospheric plasma spraying (SAPS) and microwave-hydrothermal (MH) technologies. We found that all studied coating materials can support mesenchymal stem cells (MSCs) proliferation with prolonged culture time (3 days and 7 days) in vitro. Furthermore, according to the (Confocal Laser Scanning Microscopy) CLSM results, the MSCs also showed good attachment and different spreading morphologies on SAPS/MH coatings. As such, C/C matrix, the MH treated coatings with needle-like and rod-like microstructures were chosen for further in vivo investigation. Considering the good bonding between host tissue and the studied materials, the in vivo morphology studies confirmed a good histocompatibility for all coating samples, as well as a decreasing expression for inflammatory factors in a physiological environment. The histological results around the implants indicated different cell aggregation and vascularization ability in the local micro-environment. In particular, based on the reduction of the C/C initial surface flaws (e.g. hydrophobicity, biological inertia and easily producing carbon fragments or particles), the MH treated coating with rod-like surface morphology with a specific surface area (~2.33 m2/g) and roughness (~13.80 μm), showed excellent performance as a promising implant in live tissue.

Electronic structure investigation of the stability, reactivity, NBO analysis, thermodynamics, and the nature of the interactions in methyl-substituted imidazolium-based ionic liquids

This work focuses on the stability, reactivity and electronic interionic interactions of methyl-substituted imidazolium (MMMIM) based ionic liquids (ILs); 1,2,4-trimethylimidazolium nitrate [MMMIM][NO3], hydrogen carbonate [MMMM][HCO3], and hydrogen sulfate [MMMIM][HSO4]. We have performed a high-level quantum study to provide a comprehensive insight into the stability of these ILs. Interestingly, it is shown that these ILs are stabilized through N…H and H…O hydrogen bonds (HBs) formed between the cation–anion pairs of the complexes. The nature and strength of the interactions were determined by atoms in molecules (AIM) topological parameters and natural bond orbital (NBO) analysis. These HBs are classified as medium-to-large and are driven by electrostatic interactions. The stability of the ILs was further investigated using energy decomposition analysis (EDA) and single point energy calculation. In any case, [MMMIM][HSO4] was shown to be the most stable of the ILs under consideration. The results of the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) show [MMMIM][HSO4] with energy gap of 6.0488 eV is the most stable but kinetically less reactive. It is worthy to mention here that the density of state plots clearly shows a greater contribution of carbon, oxygen and nitrogen fragments to the frontier molecular orbital. The addition of anions (carbonate, sulfate and nitrate) to cation (MMMIM) to form ILs reduces the absorption maxima (absorption wavelength) of the compounds and leads to a Bathochromic shift of the ILs. The thermodynamic study of the ILs suggest that the formation of [MMMIM][HSO4] with free energy value of 231.47 kcal/mol is highly endothermic while that of [MMMIM][NO3] is more exothermic than [MMMIM][HCO3].

Characteristics of BrC and BC emissions from controlled diffusion flame and diesel engine combustion

Constraining the climate impact of particulate brown carbon (BrC) will require identification of formation mechanisms and isolation of its different components to allow for source apportionment. For fresh combustion aerosols, the light absorption characteristics and the Absorption Angstrom Exponent (AAE) are principally controlled by the combustion conditions in which the particles formed and evolved. We investigated the influence of combustion temperatures on the BrC or black carbon (BC) emission characteristics for a miniCAST soot generator (propane fuel) and a modern heavy-duty diesel engine (petroleum diesel and two renewable diesel fuels). Changes in the AAE, mass spectral signatures, and thermal-optical characteristics were studied. We show that changing operating parameters to gradually reduce the combustion temperatures in these two fundamentally different combustion devices result in a regression from BC dominated to BrC dominated particle emissions. The regression toward BrC was associated with: (1) an increasing mass fraction of particulate non-refractory polycyclic aromatic hydrocarbons (PAHs), (2) an increasing fraction of refractory organic carbon, (3) more curved soot nanostructures and shorter fringe lengths, and (4) increased signal from (refractory) large carbon fragments in IR laser-vaporization aerosol mass spectra. Based on these results we argue that fresh BrC dominated combustion aerosols are attributed to primary emissions from low temperature combustion, highlighting the influence of refractory constituents and soot nanostructure. Higher temperatures favor the growth of conjugated polyaromatic structures in the soot, a progression hypothesized to control the evolution from BrC to BC character of the emitted aerosols.

Asymmetric three-component olefin dicarbofunctionalization enabled by photoredox and copper dual catalysis.

The intermolecular three-component alkene vicinal dicarbofunctionalization (DCF) reaction allows installation of two different carbon fragments. Despite extensive investigation into its ionic chemistry, the enantioseletive radical-mediated versions of DCF reactions remain largely unexplored. Herein, we report an intermolecular, enantioselective three-component radical vicinal dicarbofunctionalization reaction of olefins enabled by merger of radical addition and cross-coupling using photoredox and copper dual catalysis. Key to the success of this protocol relies on chemoselective addition of acyl and cyanoalkyl radicals, generated in situ from the redox-active oxime esters by a photocatalytic N-centered iminyl radical-triggered C-C bond cleavage event, onto the alkenes to form new carbon radicals. Single electron metalation of such newly formed carbon radicals to TMSCN-derived L1Cu(II)(CN)2 complex leads to asymmetric cross-coupling. This three-component process proceeds under mild conditions, and tolerates a diverse range of functionalities and synthetic handles, leading to valuable optically active β–cyano ketones and alkyldinitriles, respectively, in a highly enantioselective manner (>60 examples, up to 97% ee).

First Report on the Geologic Occurrence of Natural Na–A Zeolite and Associated Minerals in Cretaceous Mudstones of the Paja Formation of Vélez (Santander), Colombia

This study reports for the first time the geologic occurrence of natural zeolite A and associated minerals in mudstones from the Cretaceous Paja Formation in the urban area of the municipality of Vélez (Santander), Colombia. These rocks are mainly composed of quartz, muscovite, pyrophyllite, kaolinite and chlorite group minerals, framboidal and cubic pyrite, as well as marcasite, with minor feldspar, sulphates, and phosphates. Total organic carbon (TOC), total sulfur (TS), and millimeter fragments of algae are high, whereas few centimeters and not biodiverse small ammonite fossils, and other allochemical components are subordinated. Na–A zeolite and associated mineral phases as sodalite occur just beside the interparticle micropores (honeycomb from framboidal, cube molds, and amorphous cavities). It is facilitated by petrophysical properties alterations, due to processes of high diagenesis, temperatures up to 80–100 °C, with weathering contributions, which increase the porosity and permeability, as well as the transmissivity (fluid flow), allowing the geochemistry remobilization and/or recrystallization of pre-existing silica, muscovite, kaolinite minerals group, salts, carbonates, oxides and peroxides. X-ray diffraction analyses reveal the mineral composition of the mudstones and scanning electron micrographs show the typical cubic morphology of Na–A zeolite of approximately 0.45 mμ in particle size. Our data show that the sequence of the transformation of phases is: Poorly crystalline aluminosilicate → sodalite → Na–A zeolite. A literature review shows that this is an unusual example of the occurrence of natural zeolites in sedimentary marine rocks recognized around the world.